EXHIBIT 12

STATEMENT OF COMPUTATION OF RATIOS

STANADYNE HOLDINGS, INC.

|                                                                                   |  |                            |        |                            |   |                            |  |   |                            |   |                               |   |                            |  |   |        |  |   |        |  
|---------------------------------------------------------------------------------- |  | -------------------------- | ------ | -------------------------- | - | -------------------------- |  | - | -------------------------- | - | ----------------------------- | - | -------------------------- |  | - | ------ |  | - | ------ | -
|                                                                                   |  | Successor                  |        | Predecessor                |  
|                                                                                   |  | Year EndedDecember 31,2008 |        | Year EndedDecember 31,2007 |   | Year EndedDecember 31,2006 |  |   | Year EndedDecember 31,2005 |   | 148 DaysEndedDecember 31,2004 |   | 218 DaysEndedAugust 5,2004 | 
|Income (loss) from continuing operations before income taxes and minority interest |  | $                          | 5,249  |                            | $ | 10,514                     |  | $ | (2,591                     | ) |                               | $ | 3,268                      |  | $ | 6,528  |  | $ | (6,194 | )
|Fixed charges deducted from earnings                                               |  |                            | 29,569 |                            |   | 29,261                     |  |   | 29,362                     |   |                               |   | 28,568                     |  |   | 8,899  |  |   | 5,186  |  
|                                                                                   |  |                            |        |                            |   |                            |  |   |                            |   |                               |   |                            |  |   |        |  |   |        |  
|Earnings available for payment of fixed charges                                    |  | $                          | 34,818 |                            | $ | 39,775                     |  | $ | 26,771                     |   |                               | $ | 31,836                     |  | $ | 15,427 |  | $ | (1,008 | )
|                                                                                   |  |                            |        |                            |   |                            |  |   |                            |   |                               |   |                            |  |   |        |  |   |        |  
|Fixed charges:                                                                     |  |                            |        |                            |   |                            |  |   |                            |   |                               |   |                            |  |   |        |  |   |        |  
|Interest expense, net                                                              |  | $                          | 16,735 |                            | $ | 17,165                     |  | $ | 18,308                     |   |                               | $ | 18,379                     |  | $ | 7,576  |  | $ | 4,335  |  
|Amortization of deferred financing fees                                            |  |                            | 12,490 |                            |   | 11,351                     |  |   | 10,364                     |   |                               |   | 9,490                      |  |   | 1,031  |  |   | 434    |  
|Portion of rent deemed to be interest                                              |  |                            | 344    |                            |   | 745                        |  |   | 690                        |   |                               |   | 699                        |  |   | 292    |  |   | 417    |  
|                                                                                   |  |                            |        |                            |   |                            |  |   |                            |   |                               |   |                            |  |   |        |  |   |        |  
|Total fixed charges                                                                |  | $                          | 29,569 |                            | $ | 29,261                     |  | $ | 29,362                     |   |                               | $ | 28,568                     |  | $ | 8,899  |  | $ | 5,186  |  
|                                                                                   |  |                            |        |                            |   |                            |  |   |                            |   |                               |   |                            |  |   |        |  |   |        |  
|Ratio of earnings (deficiency) to fixed charges                                    |  |                            | 1.2    |                            |   | 1.4                        |  |   | 0.9                        |   |                               |   | 1.1                        |  |   | 1.7    |  |   | (0.2   | )
|                                                                                   |  |                            |        |                            |   |                            |  |   |                            |   |                               |   |                            |  |   |        |  |   |        |  

STANADYNE CORPORATION

|                                                                                   |  |                            |        |                            |   |                            |  |                            |        |                               |   |                            |  |   |        |  |   |        |  
|---------------------------------------------------------------------------------- |  | -------------------------- | ------ | -------------------------- | - | -------------------------- |  | -------------------------- | ------ | ----------------------------- | - | -------------------------- |  | - | ------ |  | - | ------ | -
|                                                                                   |  | Successor                  |        | Predecessor                |  
|                                                                                   |  | Year EndedDecember 31,2008 |        | Year EndedDecember 31,2007 |   | Year EndedDecember 31,2006 |  | Year EndedDecember 31,2005 |        | 148 DaysEndedDecember 31,2004 |   | 218 DaysEndedAugust 5,2004 | 
|Income from continuing operations (loss) before income taxes and minority interest |  | $                          | 15,772 |                            | $ | 19,885                     |  | $                          | 5,837  |                               | $ | 10,793                     |  | $ | 6,747  |  | $ | (6,194 | )
|Fixed charges deducted from earnings                                               |  |                            | 19,108 |                            |   | 19,935                     |  |                            | 21,037 |                               |   | 21,107                     |  |   | 8,681  |  |   | 5,186  |  
|                                                                                   |  |                            |        |                            |   |                            |  |                            |        |                               |   |                            |  |   |        |  |   |        |  
|Earnings available for payment of fixed charges                                    |  | $                          | 34,880 |                            | $ | 39,820                     |  | $                          | 26,874 |                               | $ | 31,900                     |  | $ | 15,428 |  | $ | (1,008 | )
|                                                                                   |  |                            |        |                            |   |                            |  |                            |        |                               |   |                            |  |   |        |  |   |        |  
|Fixed charges:                                                                     |  |                            |        |                            |   |                            |  |                            |        |                               |   |                            |  |   |        |  |   |        |  
|Interest expense, net                                                              |  | $                          | 16,740 |                            | $ | 17,164                     |  | $                          | 18,321 |                               | $ | 18,379                     |  | $ | 7,576  |  | $ | 4,335  |  
|Amortization of deferred financing fees                                            |  |                            | 2,024  |                            |   | 2,026                      |  |                            | 2,026  |                               |   | 2,029                      |  |   | 813    |  |   | 434    |  
|Portion of rent deemed to be interest                                              |  |                            | 344    |                            |   | 745                        |  |                            | 690    |                               |   | 699                        |  |   | 292    |  |   | 417    |  
|                                                                                   |  |                            |        |                            |   |                            |  |                            |        |                               |   |                            |  |   |        |  |   |        |  
|Total fixed charges                                                                |  | $                          | 19,108 |                            | $ | 19,935                     |  | $                          | 21,037 |                               | $ | 21,107                     |  | $ | 8,681  |  | $ | 5,186  |  
|                                                                                   |  |                            |        |                            |   |                            |  |                            |        |                               |   |                            |  |   |        |  |   |        |  
|Ratio of earnings (deficiency) to fixed charges                                    |  |                            | 1.8    |                            |   | 2.0                        |  |                            | 1.3    |                               |   | 1.5                        |  |   | 1.8    |  |   | (0.2   | )
|                                                                                   |  |                            |        |                            |   |                            |  |                            |        |                               |   |                            |  |   |        |  |   |        |