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The Mack Primary Fuel Filter screens diesel fuel before it enters sensitive injection components. Used in FH12, FH16, FL, and FM Volvo engine platforms, it captures contaminants that may be present in bulk fuel supplies. Clean fuel flow lowers the likelihood of injector fouling and uneven spray patterns. Consistent filtration supports steady combustion and accurate fuel delivery. Since injection systems depend on an uncontaminated fuel supply, the Mack 21380521 protects primary fuel circuits across specified Euro 4 and Euro 5 engines.
| Brand | Part Number |
|---|---|
| R60RDRCR02 | |
| BALDWIN | BF1386-O |
| DONALDSON | P551838 |
| FLEETGUARD | FS19966 |
| LUBER-FINER | LFF3358 |
| PAI | 804097 |
| WIX FILTERS | WIX FILTERS, 33995 |
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