MA35L--INTERNAL COMBUSTION ENGINES:  1991
Contact person:  Lynn Jedrey, 301-763-5547

Table 1.  INTERNAL COMBUSTION ENGINES, BY TYPE OF ENGINE:  1991 and 1990

(Engines and quantity in units; value in thousands of dollars)

                                                    Total shipments and      Shipments to
           Product description                      interplant transfers    other companies     Interplant transfers         Engines
                                                                  Value                  Value                    Value     produced
                                            Engines     Quan-    f.o.b.     Quan-       f.o.b.       Quan-       f.o.b. and incorpo-
                                        produced 1/      tity     plant      tity        plant        tity        plant     rated 2/

                  1991
     Total. . . . . . . . . . . . . . . .15,109,660       (D)  5,359,308      (D)    4,365,516         (D)      993,792       18,742

Gasoline (except outboard, aircraft, and
 automotive). . . . . . . . . . . . . . .14,537,860       (D)  1,319,069      (D)    1,173,925         (D)      145,144          (D)
Nonautomotive diesel (except aircraft). .   184,245   165,509  1,496,372  123,471    1,118,274      42,030      378,098       18,742
Automotive diesel. . . . . . . . . . . .    383,206   383,206  2,392,239  288,327    1,921,689      94,879      470,550            -
Natural gas and LPG. . . . . . . . . . .      4,349       (D)    151,628      (D)      151,628         (D)          (3)          (D)

                  1990
     Total. . . . . . . . . . . . . . . .16,968,635       (D)  5,891,632  460,711    4,764,210     158,041    1,127,422       20,609

Gasoline (except outboard, aircraft, and
 automotive). . . . . . . . . . . . . . .16,325,544       (D)  1,505,341      (D)    1,377,546         (D)    r/127,795          (D)
Nonautomotive diesel (except aircraft). .   206,106   186,510  1,597,687  137,831    1,172,986      47,966    r/424,701     r/20,609
Automotive diesel. . . . . . . . . . . .    432,945   432,945  2,673,554  322,880    2,098,628     110,075      574,926            -
Natural gas and LPG. . . . . . . . . . .      4,040       (D)    115,050      (D)    3/115,050         (D)          (3)          (D)

   - Represents zero   (D) Data withheld to avoid disclosing figures for individual companies   r/Revised by 5 percent or more from
previously published figures.

     1/Represents total number of engines shipped or produced and incorporated into products at the same establishments
     2/Represents engines produced and incorporated (in the same plant) into products such as construction machinery,
farm machinery, tractors, engine-generator sets, and other products.
     3/Data for gas engines shipped as interplants transfers have been included with shipments to other companies
to avoid disclosing figures for individual companies.


Table 2.  GASOLINE ENGINES, BY HORSEPOWER RATING:  1991 and 1990

(Engines and quantity in units; value in thousands of dollars)

                                                               Total shipments and           Shipments to            Interplant
                                                               interplant transfers     other companies              transfers

                                                                             Value                    Value                 Value       Engines
             Product Description       No. of                               f.o.b.                   f.o.b.                f.o.b.  produced and
 Product                                 com-      Engines   Quan-           plant      Quan-         plant    Quan-        plant      incorpo-
  Code                                 panies  produced 1/    tity                       tity                   tity                   rated 2/
                     1991

35191    Gasoline engines. . . . . .       22   14,537,860     (D)       1,319,069        (D)     1,173,925      (D)      145,144           (D)

35191 04    Under 11 hp. . . . . . .       15   12,956,159     (D)             (3)        (D)       666,477      (D)          (3)           (D)
35191 11    11 to under 21 hp. . . .        5    1,403,691     (D)     3/1,319,069  1,353,652       384,697      (D)    3/145,144           (D)
35191 13    21 to under 61 hp. . . .        7       34,038     (D)             (3)        (D)         9,276      (D)          (3)           (D)
35191 16    61 hp and over. . . . . .       7      143,972     (D)             (3)     90,607       113,475      (D)          (3)           (D)

                     1990

35191    Gasoline engines. . . . . .       22   16,325,544     (D)       1,505,341        (D)     1,377,546      (D)      127,795           (D)

35191 04    Under 11 hp. . . . . . .       15   14,562,527     (D)             (3)        (D)       798,582      (D)          (3)           (D)
35191 11    11 to under 21 hp. . . .        9    1,548,151     (D)     3/1,505,341  1,493,331       409,035      (D)  3 r/127,795           (D)
35191 13    21 to under 61 hp. . . .       11       37,681     (D)             (3)        (D)        11,261      (D)          (3)           (D)
35191 16    61 hp and over. . . . . .       8      177,185     (D)             (3)    125,930       158,668      (D)          (3)           (D)

   Note:  Horsepower is defined as maximum published horsepower rating at maximum recommemded rpm.

   (D) Data withheld to avoid disclosing figures for individual companies.     r/Revised by 5 percent or more from previously published figures.

   1/Represents total number of engines shipped or produced and incorporated into products at the same establishment.
   2/Represents engines produced and incorporated (in the same plant) into products such as construction machinery, farm machinery, tractors, engine-
generator sets, and other products.
   3/Product codes 35191 04, 35191 11, 35191 13 and 35191 16 have been combined to avoid disclosing figures of individuals companies.



Table 3.  NONAUTOMOTIVE DIESEL ENGINES, BY HORSEPOWER RATING:  1991 AND 1990

(Engines and quantity in units: value in thousands of dollars)

                                                               Total shipments and           Shipments to              Interplant
             Product Description                               interplant transfers          other companies            transfers
                                       Number                                Value                   Value                   Value      Engines
Product                                  of        Engines                  f.o.b.                   f.o.b.                 f.o.b.    produced and
Code                                 Companies    Produced 1/ Quantity       Plant      Quantity     Plant      Quantity     Plant    incorporated 2/

                     1991

35193    Nonautomotive diesel engines   13         184,245     165,501     1,316,186     123,471   1,118,274      42,030    378,098        18,742
35193 01    Under 101 hp. . . . . . .    8          18,387       (4)          (4)         11,843      38,751       (4)        (4)         (4)
35193 05    101 to under 151 hp. . .     6          42,157   4/124,971     4/591,708       (6)        (6)       4/30,527  4/197,912      4/10,859
35193 07    151 to under 176 hp. . .     6          26,960       (4)          (4)       6/82,601   6/355,045       (4)        (4)         (4)
35193 08    176 to under 251 hp. . .     7          48,326       (4)          (4)          (6)        (6)          (4)        (4)         (4)
35193 18    251 to under 301 hp. . .     3          13,634       (5)          (5)          5,093      54,627       (5)        (5)         (5)
35193 19    301 to under 401 hp. . .     5           9,721       (5)          (5)          7,618      90,377       (5)        (5)         (5)
35193 21    401 to under 451 hp. . .     3           4,880       (5)          (5)          4,518      67,705       (5)        (5)         (5)

35193 22    451 to under 601 hp. . .     3           8,690       (5)          (5)          5,822     140,306       (5)        (5)         (5)
35193 24    601 to under 701 hp. . .     3           3,766    5/29,027     5/724,478       2,220      73,593    5/11,503  5/180,186       5/7,883
35193 25    701 to under 801 hp. . .     5           1,899       (5)          (5)          1,434      50,171       (5)        (5)         (5)
35193 26    801 to under 1,001 hp. .     5           (3)         (5)          (5)          (3)        (3)          (5)        (5)         (5)
35193 27    1,001 to under 1,501 hp.     5         3/3,423       (5)          (5)        3/1,681    3/96,004       (5)        (5)         (5)
35193 28    1,501 hp and over. . . .     7           2,402       (5)          (5)            641     151,695       (5)        (5)         (5)

                     1990

35193    Nonautomotive diesel engines   13         206,106     174,319     1,409,446     137,831   1,172,986      48,236    424,701        20,309
35193 01    Under 101 hp. . . . . . .    9        r/20,775       (4)          (4)         12,463    r/40,872       (4)        (4)         (4)
35193 05    101 to under 151 hp. . .     7          52,937   4/143,618     4/666,156       (6)        (6)       4/36,488  4/236,460    4 r/13,256
35193 07    151 to under 176 hp. . .     6        r/29,602       (4)          (4)       6/94,667   6/388,824       (4)        (4)         (4)
35193 08    176 to under 251 hp. . .     6          53,560       (4)          (4)          (6)        (6)          (4)        (4)         (4)
35193 18    251 to under 301 hp. . .     4          13,951       (5)          (5)          5,536      63,540       (5)        (5)         (5)
35193 19    301 to under 401 hp. . .     5          10,415       (5)          (5)          8,393      99,619       (5)        (5)         (5)
35193 21    401 to under 451 hp. . .     3           4,669       (5)          (5)          4,080      64,810       (5)        (5)         (5)

35193 22    451 to under 601 hp. . .     4           9,726       (5)          (5)          6,852     160,343       (5)        (5)         (5)
35193 24    601 to under 701 hp. . .     3           3,461    5/30,701     5/743,290       2,172      64,067    5/11,748   5 r188,241     5/7,053
35193 25    701 to under 801 hp. . .     5           1,720       (5)          (5)          1,369      47,470       (5)        (5)         (5)
35193 26    801 to under 1,001 hp. .     6           (3)         (5)          (5)          (3)           (3)       (5)        (5)         (5)
35193 27    1,001 to under 1,501 hp.     5         3/2,882       (5)          (5)        3/1,487    3/78,602       (5)        (5)         (5)
35193 28    1,501 hp and over. . . .     8           2,408       (5)          (5)            812     164,839       (5)        (5)         (5)


   Note:  Horsepower is defined as maximum published horsepower rating at maximum recommended rpm.

   rRevised by 5 percent or more from previously published figures.

   1/  Represents total number of engines shipped or produced and incorporated into products at the same establishment.
   2/  Represents engines produced and incorporated (in the same plant) into products such as construction machinery, farm machinery, tractors, engine-
generator sets, and other products.
   3/  Product codes 35193 26 and 35193 27 have been combined to avoid disclosing figures of individual companies.
   4/  Product codes 35193 01, 35193 05, 35193 07 and 35193 08 have been combined to avoid disclosing figures of individual companies.
   5/  Product codes 35193 18, 35193 19, 35193 21, 35193 22, 35193 24, 35193 25, 35193 26, 35193 27 and 35193 28 have been combined
to avoid disclosing figures of individual companies.
   6/  Product codes 35193 05, 35193 07 and 35193 08 have been combined to avoid disclosing figures of individual companies.



Table 4.  AUTOMOTIVE DIESEL ENGINES, BY HORSEPOWER RATING:  1991 AND 1990
          (Engines in units; value in thousands of dollars)

                                                           1991                1990
                                          No. of
Product     Product description             com-    Engines             Engines
  code                                    panies         1/      Value       1/      Value

35194    Automotive diesel engines. . .        9    383,206  2,392,239  432,945  2,673,554

35194 12    Under 226 hp. . . . . . . .        8    260,506    976,022  283,189  1,023,832
35194 14    226 to under 251 hp. . . . .       6     13,399     67,297   16,922    102,595
35194 15    251 hp and over. . . . . . .       4    109,301  1,348,920  132,834  1,547,127

   1/Represents total number of engines shipped.


Table 5.  GAS ENGINES (EXCEPT AUTOMOTIVE), BY HORSEPOWER RATING:  1991 AND 1990

(Engines and quantity in units; value in thousands of dollars)
                                                              Total shipments including
                                                                interplant transfers
 Product    Product description         No. of      Engines                      Value          Engines
  code                                    com-     produced      Quan-          f.o.b.     produced and
                                        panies                    tity           plant  incorporated 2/
                      1991

35196    Natural gas and LPG engines. .      9        4,349        (D)         151,628              (D)

35196 11    Under 501 hp. . . . . . . .      8        3,352        (D)          28,375              (D)
35196 12    501 hp and over. . . . . . .     4          997        (D)         123,253              (D)

                      1990
35196    Natural gas and LPG engines. .     10        4,040        (D)         115,050              (D)

35196 11    Under 501 hp. . . . . . . .     10        3,403        (D)          22,862              (D)
35196 12    501 hp and over. . . . . . .     5          637        (D)          92,188              (D)

   (D) Data withheld to avoid disclosing figures for individual companies.

   1/Represents total number of engines shipped or produced and incorporated into products at the same establishment.
   2/Represents engines produced and incorporated (in the same plant) into products such as construction machinery, farm
machinery, tractors, engine-generator sets, and other products.


Table 6.  ENGINES PRODUCED, BY PISTON DISPLACEMENT AND FUEL SYSTEM:  1991 AND 1990
                                                                        Gasoline               Nonautomotive diesel         Automotive diesel
                      Piston displacement
                                                                      1991          1990         1991         1990         1991         1990

     Total. . . . . . . . . . . . . . . . . . . . . .. . . . . .   14,537,860    16,325,544     184,245       206,106     383,206       432,945

Under 21 cubic inches (under 344 c.c.). . . . . . . . . . . . .    12,756,096    14,346,525       (2)          (2)          (6)          (6)
21 to under 31 cubic inches (344 to under 508 c.c.). . . . . . .    1,278,236     1,408,579       (2)          (2)          (6)          (6)
31 to under 51 cubic inches (508 to under 836 c.c.). . . . . . .      325,459       355,662       (2)          (2)          (6)          (6)
51 to under 76 cubic inches (8.36 to under 1.245 L). . . . . . .       31,698        35,207       (2)          (2)          (6)          (6)
76 to uncer 126 cubic inches (1.245 to under 2.065 L). . . . . .       (1)           (1)        2/5,143       2/3,622       (6)          (6)
126 to under 151 cubic inches (2.065 to under 2.475 L). . . . .        (1)           (1)          (2)          (2)          (6)          (6)
151 to under 176 cubic inches (2.475 to under 2.885 L). . . . .        (1)           (1)          (2)          (2)          (6)          (6)
176 to under 201 cubic inches (2.885 to under 3.295 L). . . . .        (1)           (1)          (3)          (3)          (6)          (6)
201 to under 226 cubic inches (3.295 to under 3.704 L). . . . .        (1)           (1)       3/47,430    3 r/59,949   6/383,206     6/432,945
226 to under 251 cubic inches (3.704 to under 4.114 L). . . . .        (1)           (1)          (3)          (3)          (6)          (6)
251 to under 301 cubic inches (4.114 to under 4.934 L). . . . .        (1)           (1)          (4)          (4)          (6)          (6)
301 to under 351 cubic inches (4.934 to under 5.754 L). . . . .     1/146,371     1/179,571    4/21,852    4 r/21,972       (6)          (6)
351 to under 401 cubic inches (5.754 to under 6.573 L). . . . .        (1)           (1)          (4)          (4)          (6)          (6)
401 to under 501 cubic inches (6.573 to under 8.213 L). . . . .        (1)           (1)         35,415        39,044       (6)          (6)
501 to under 601 cubic inches (8.213 to under 9.852 L). . . . .        (1)           (1)          (5)          (5)          (6)          (6)
601 to under 801 cubic inches (9.852 to under 13.131 L). . . . .       (1)           (1)       5/57,252      5/64,486       (6)          (6)
801 to under 1,001 cubic inches (13.131 to under 16.409 L). . .        (1)           (1)          (5)          (5)          (6)          (6)
1,001 to under 3,001 cubic inches (16.409 to under 49.196 L). .        (1)           (1)         14,547        14,756       (6)          (6)
3,001 cubic inches and over (49.196 and over). . . . . . . . . .       (1)           (1)          2,606         2,277       (6)          (6)

   c.c. Cubic centimeters.   L. Litres.   r revised by 5 perce
   1/  Gasoline piston displacement 76 cubic inches and over (1.245 and over) have been combined to avoid disclosing figures of individual companies.
   2/  Nonautomotive diesel piston displacement under 21 cubic inches to under 176 inches (under 344 c.c. to under 2.885L) have been combined
to avoid disclosing figures of individual companies.
   3/  Nonautomotive diesel piston displacement 176 cubic inches to under 251 cubic inches (2885 to under 4114 L) have been combined to avoid
disclosing figures of individual companies.
   4/  Nonautomotive diesel piston displacement 251 to under 401 cubic inches (4.114 to under 6.573) have been disclosed to avoid disclosing figures of individual companies.
   5/  Nonautomotive diesel piston displacement 501 to under 1,001 cubic inches (8.213 to under 16.409 L) have been combines to avoid disclosing figures of individual companies.
   6/  Automotive diesel piston displacement under 21 cubic inches and over (under 344.cc and over) have been combined to avoid disclosing figures of individual companies.


Table 7.  ENGINES PRODUCED (EXCEPT OUTBOARD, AUTOMOTIVE, AND AIRCRAFT BY TYPE OF ENGINE AND END APPLICATION:  1991 AND 1990

                                                              Gasoline engines           Nonautomotive
                   End Application                                                      diesel  engines

                                                               1991          1990        1991        1990

       Total. . . . . . . . . . . . . . . . . . . . .    14,537,860    16,325,544     184,245     206,106

Oil field and petroleum related generating and
stationary equipment. . . . . . . . . . . . . . . . .        (1)           (1)          (4)         (4)
Other generator sets. . . . . . . . . . . . . . . . .   1/1,397,892   1/1,547,079    4/31,890  4 r/26,696
Irrigation. . . . . . . . . . . . . . . . . . . .. . .       (1)           (1)           -           -
Chain saws. . . . . . . . . . . . . . . . . . . .. . .       (1)           (1)           -           -
Off-highway mobile construction equipment. . . . . . .     2/89,474     2/128,559      69,514      84,598
Marine, except outboard. . . . . . . . . . . . . . . .       (2)           (2)          9,142      11,245
Railroad, motive power type. . . . . . . . . . . . . .       (3)           (3)          (5)         (5)
Agriculture vehicular. . . . . . . . . . . . . . . . .    3/780,550     3/850,894    5/47,537    5/52,240
Garden tractors. . . . . . . . . . . . . . . . . . . .       (3)           (3)           -           -
Lawn, home, and recreational equipment. . . . . . . .    11,334,824    12,911,630        -           -
Other general industrial. . . . . . . . . . . . . .. .      935,120       887,382      26,162      31,327

   - Represents zero   r/Revised by 5 percent or more form previously published figures.

   1/  Gasoline engine oil field and petroleum related generating and stationary equipment, other generator sets, irrigation
and chain saws have been disclosed to avoid disclosing figures of individual companies.
   2/  Gasoline engine off-highway mobile construction equipment, and marine (except outboard) have been combined to avoid
disclosing figures of individual companies.
   3/  Gasoline engine railroad (motive power type), agriculture vehicular and garden tractors have been combined to avoid
disclosing figures of individual companies.
   4/  Nonautomotive diesel engine oil field and petroleum related generating and stationary equipment and other generator
sets have been combined to avoid disclosing figures of individual companies.
   5/  Nonautomotive diesel engine railroad (motive power type) and agriculture vehicular have been combined to avoid
disclosing figures of individual companies.


Table 8.  COMPARISON OF VALUES OF SHIPMENTS OF INTERNAL COMBUSTION ENGINES, AS
          REPORTED IN THE MA35L, THE 1987 CENSUS OF MANUFACTURES, AND THE 1990
          SURVEY OF MANUFACTURES    (VALUE IN THOUSANDS OF DOLLARS)

                                                                  1990                                    1987

                                                                     Annual Survey
                                                                   of Manufacturers'

                                                                                Standard
Product                                                                         error of                      Census of
   code                 Product description            MA35L       Value    estimates 2/         MA35L     Manufactures

3519  Internal combustion engines n.e.c.............     (X)  1,171,706.0            1             (X)         10,908.7
35191 Gasoline and gas-gasoline engines............. 1,505.3      1,579.8            1         1,511.5          1,474.3
35193 Diesel and semidiesel engines, nonautomotive.. 1,597.7      1,548.0            1         1,199.7          1,198.3
35194 Diesel and semidiesel engines, automotive..... 2,673.6      2,757.9            1         2,703.0          2,744.3
35195 Outboard motors...............................     (3)          (D)          (X)             (3)              (D)
35196 Gas engines (except gas turbines).............   115.1        114.7            1            66.1             66.0
35197 Tank and converted internal combustion engines     (3)          (D)          (X)             (3)              (D)
35199 Parts for internal combustion engines.........     (3)      4,678.5            2             (3)          3,789.9
35190 Internal combustion engines n.s.k.............     (3)         96.2            1             (3)             90.3

   (D) Data withheld to avoid disclosing figures from individual companies.

     1/Source:  1990 Annual Survey of Manufactures, Value of Product Shipemtns, M90(AS)-2.

     2/The annual survey of manufactures percentage standard errors shown are the approximate relative errors of the
estimate of level.  A more detailed description of the standard error of estimate is given in the introduction of
the annual survey of manufactures, Value of Product Shipments, M90(AS)-2, under "Qualifications of the Data."
     3/Data for this product class is collected only in the census of manufactures and annual survey of manufactures.


Table 9.  PRODUCTION, EXPORTS, IMPORTS, AND APPARENT CONSUMPTION OF INTERNAL COMBUSTION ENGINES:  1991 AND 1990
          (Quantity in units; value in thousands of dollars)


                                                                                                                                                                         Percent
                                                  Manufactures'              Exports of                  Percent exports                                              imports to
                                                  production                 domestic                   to manufacturers'    Imports for           Apparent             apparent
                 Product description                                         merchandise 2/                production       consumption 5/       consumption 6/      consumption
                                                         Value of
                                                         shipments                           Estimated
Product                                                  f.o.b.                   Value     producers'   Quan-                                                      Quan-
   Code                                        Quantity   plant 1/   Quantity   at port 3/    value 4/    tity     Value   Quantity   Value    Quantity      Value   tity   Value


                       1991

               Total. . . . . . . . . . . . .15,109,660  5,359,308  1,517,229   1,340,089   1,172,310     10.0      21.9  1,164,903  866,337  14,757,334  5,140,780   7.9   16.9
35194    Automotive diesel engines  7/. . . .   383,206  2,392,239     61,245     382,228     334,373     16.0      14.0     37,711  212,635     359,672  2,270,561  10.5    9.4
35193    Nonautomotive diesel engines. . . .    184,245  1,496,372     46,820     668,264     584,597     25.4      39.1    171,945  431,558     309,370  1,417,781  55.6   30.4
35191    Gasoline engines. . . . . . . . . . 14,537,860  1,319,069  1,408,599     259,860     227,326      9.7      17.2 }
35196    Gas and liquefied petroleum gas                                                                                 }  955,247  222,144  14,088,292  1,452,438   6.8   15.3
          engines. . . . . . . . . . . . . .      4,349    151,628        565      29,737      26,014     13.0      17.2 }

                       1990

               Total. . . . . . . . . . . . .16,968,635  5,707,292  2,024,700   1,426,771   1,310,062     11.9      23.0  1,521,173  918,995  16,468,108  5,357,666   9.2   17.2
35194    Automotive diesel engines. . . . . .   432,945  2,489,214     54,781     369,592     339,360     12.7      13.6     83,254  233,558     464,418  2,383,412  17.9    9.8
35193    Nonautomotive diesel engines. . . .    206,106  1,597,687     56,633     703,827     646,254     27.5      40.4    221,128  451,423     370,601  1,402,856  59.7   32.2
35191    Gasoline engines. . . . . . . . . . 16,325,544  1,505,341  1,912,471     318,166     292,140     11.7      19.4}
35196    Gas and liquefied petroleum gas                                                                                } 1,216,791  234,014  15,633,089  1,571,398   7.8   14.9
          engines. . . . . . . . . . . . . .      4,040    115,050        815      35,186      32,308     20.2      28.1}


     Note:  For comparison of Standard Industrial Classification-based product codes, schedule B export numbers, and HTSUSA import numbers, see table 10.

     1/  Value of shipments f.o.b. plant of production quantities shipped as engines, including interplant transfers.
     2/  Source:  Bureau of the Census report EM 545, U.S. Exports.
     3/  This dollar value represents the c.i.f. (cost, insurance and freight) value to port of export.
     4/  These values were derived by use of adjustment factors to exclude freight, insurance and other charges incurred in moving goods to the port of export.
This adjustment if made to convert the values to an approximation of the producers' value of exported goods.  Current adjustment factors are based on data
for 1987 which are published in Exports from Manufacturing Establishments, AR(87)-1, appendix b.  The f.o.b. adjustment factor for this report is
     5/  Source:  Bureau of the Census reports IM 145, U.S. General Imports  These figures include both import value and duty value.
     6/  Apparent consumption is derived by subtracting exports from the total of manufactures' production plus imports (including duty).  estimated producers'
value is used in the calculation of these data.
     7/  Quantity represents total number of engines shipped.hown are the approximate relative errors of the
estim