EXHIBIT 12

STATEMENT OF COMPUTATION OF RATIOS

STANADYNE HOLDINGS, INC.

|                                                                                   |  |                            |        |                            |   |        |                            |  |                               |        |                            |   |        |                            |   |        |   |  |   |       
|---------------------------------------------------------------------------------- |  | -------------------------- | ------ | -------------------------- | - | ------ | -------------------------- |  | ----------------------------- | ------ | -------------------------- | - | ------ | -------------------------- | - | ------ | - |  | - | ------
|                                                                                   |  | Successor                  |        | Predecessor               
|                                                                                   |  | Year EndedDecember 31,2007 |        | Year EndedDecember 31,2006 |   |        | Year EndedDecember 31,2005 |  | 148 DaysEndedDecember 31,2004 |        | 218 DaysEndedAugust 5,2004 |   |        | Year EndedDecember 31,2003
|Income (loss) from continuing operations before income taxes and minority interest |  | $                          | 10,514 |                            | $ | (2,591 | )                          |  | $                             | 3,268  |                            | $ | 6,528  |                            | $ | (6,194 | ) |  | $ | 12,050
|Fixed charges deducted from earnings                                               |  |                            | 29,261 |                            |   | 29,362 |                            |  |                               | 28,568 |                            |   | 8,899  |                            |   | 5,186  |   |  |   | 8,863 
|                                                                                   |  |                            |        |                            |   |        |                            |  |                               |        |                            |   |        |                            |   |        |   |  |   |       
|Earnings available for payment of fixed charges                                    |  | $                          | 39,775 |                            | $ | 26,771 |                            |  | $                             | 31,836 |                            | $ | 15,427 |                            | $ | (1,008 | ) |  | $ | 20,913
|                                                                                   |  |                            |        |                            |   |        |                            |  |                               |        |                            |   |        |                            |   |        |   |  |   |       
|Fixed charges:                                                                     |  |                            |        |                            |   |        |                            |  |                               |        |                            |   |        |                            |   |        |   |  |   |       
|Interest expense, net                                                              |  | $                          | 17,165 |                            | $ | 18,308 |                            |  | $                             | 18,379 |                            | $ | 7,576  |                            | $ | 4,335  |   |  | $ | 7,184 
|Amortization of deferred financing fees                                            |  |                            | 11,351 |                            |   | 10,364 |                            |  |                               | 9,490  |                            |   | 1,031  |                            |   | 434    |   |  |   | 952   
|Portion of rent deemed to be interest                                              |  |                            | 745    |                            |   | 690    |                            |  |                               | 699    |                            |   | 292    |                            |   | 417    |   |  |   | 727   
|                                                                                   |  |                            |        |                            |   |        |                            |  |                               |        |                            |   |        |                            |   |        |   |  |   |       
|Total fixed charges                                                                |  | $                          | 29,261 |                            | $ | 29,362 |                            |  | $                             | 28,568 |                            | $ | 8,899  |                            | $ | 5,186  |   |  | $ | 8,863 
|                                                                                   |  |                            |        |                            |   |        |                            |  |                               |        |                            |   |        |                            |   |        |   |  |   |       
|Ratio of earnings (deficiency) to fixed charges                                    |  |                            | 1.4    |                            |   | 0.9    |                            |  |                               | 1.1    |                            |   | 1.7    |                            |   | (0.2   | ) |  |   | 2.4   
|                                                                                   |  |                            |        |                            |   |        |                            |  |                               |        |                            |   |        |                            |   |        |   |  |   |       

STANADYNE CORPORATION

|                                                                                   |  |                            |        |                            |   |                            |  |                               |        |                            |   |        |                            |   |        |   |  |   |       
|---------------------------------------------------------------------------------- |  | -------------------------- | ------ | -------------------------- | - | -------------------------- |  | ----------------------------- | ------ | -------------------------- | - | ------ | -------------------------- | - | ------ | - |  | - | ------
|                                                                                   |  | Successor                  |        | Predecessor               
|                                                                                   |  | Year EndedDecember 31,2007 |        | Year EndedDecember 31,2006 |   | Year EndedDecember 31,2005 |  | 148 DaysEndedDecember 31,2004 |        | 218 DaysEndedAugust 5,2004 |   |        | Year EndedDecember 31,2003
|Income from continuing operations (loss) before income taxes and minority interest |  | $                          | 19,885 |                            | $ | 5,837                      |  | $                             | 10,793 |                            | $ | 6,747  |                            | $ | (6,194 | ) |  | $ | 12,050
|Fixed charges deducted from earnings                                               |  |                            | 19,935 |                            |   | 21,037                     |  |                               | 21,107 |                            |   | 8,681  |                            |   | 5,186  |   |  |   | 8,863 
|                                                                                   |  |                            |        |                            |   |                            |  |                               |        |                            |   |        |                            |   |        |   |  |   |       
|Earnings available for payment of fixed charges                                    |  | $                          | 39,820 |                            | $ | 26,874                     |  | $                             | 31,900 |                            | $ | 15,428 |                            | $ | (1,008 | ) |  | $ | 20,913
|                                                                                   |  |                            |        |                            |   |                            |  |                               |        |                            |   |        |                            |   |        |   |  |   |       
|Fixed charges:                                                                     |  |                            |        |                            |   |                            |  |                               |        |                            |   |        |                            |   |        |   |  |   |       
|Interest expense, net                                                              |  | $                          | 17,164 |                            | $ | 18,321                     |  | $                             | 18,379 |                            | $ | 7,576  |                            | $ | 4,335  |   |  | $ | 7,184 
|Amortization of deferred financing fees                                            |  |                            | 2,026  |                            |   | 2,026                      |  |                               | 2,029  |                            |   | 813    |                            |   | 434    |   |  |   | 952   
|Portion of rent deemed to be interest                                              |  |                            | 745    |                            |   | 690                        |  |                               | 699    |                            |   | 292    |                            |   | 417    |   |  |   | 727   
|                                                                                   |  |                            |        |                            |   |                            |  |                               |        |                            |   |        |                            |   |        |   |  |   |       
|Total fixed charges                                                                |  | $                          | 19,935 |                            | $ | 21,037                     |  | $                             | 21,107 |                            | $ | 8,681  |                            | $ | 5,186  |   |  | $ | 8,863 
|                                                                                   |  |                            |        |                            |   |                            |  |                               |        |                            |   |        |                            |   |        |   |  |   |       
|Ratio of earnings (deficiency) to fixed charges                                    |  |                            | 2.0    |                            |   | 1.3                        |  |                               | 1.5    |                            |   | 1.8    |                            |   | (0.2   | ) |  |   | 2.4   
|                                                                                   |  |                            |        |                            |   |                            |  |                               |        |                            |   |        |                            |   |        |   |  |   |