Engine Parts

Stud Kit By BESTfitEnsure a strong and reliable PTO installation with the BESTfit Stud Kit, a premium replacement for 717086X designed specifically for Chelsea 280 Series PTO applications. This high-quality mounting kit is built for durability and...

Power Take-Off By BESTfitBuilt for strength and dependable performance, the BESTfit Power Take-Off is a high-quality replacement for 489XLAHXV3RK, 489XLAHXV3RA, and 489XLAHXV3RB, designed specifically for Chelsea 489 Series PTO applications. Its 2-gear,...

Ten Bolt PowerShift Power Take-Off By BESTfitBuilt for strength and reliability, the BESTfit Ten Bolt PowerShift PTO is a premium replacement for 180274NYT and 890HAFJWB5AF, designed specifically for Chelsea 890 Series mechanical transmission systems...

Water Pump By BESTfit Fits Dodge 2500 & 3500 W/ Cummins 6.7L EngineKeep your engine protected from heat with the BESTfit Water Pump, engineered as a direct replacement for 4309429, 182171, and 5633318 for Dodge 2500 and 3500 with Cummins 6.7L engines...

Copper/ Brass Bolt- On Radiator By BESTfit Fits Western StarWhen reliable cooling matters most, choose the BESTfit Copper/Brass Radiator, engineered to replace 1110200002, 437464, and 3A053961 for Western Star trucks. Featuring a rugged copper and brass...

Water Pump Installation Kit By BESTfit Fits GMC/Chevrolet W/ Duramax 6.6L EngineGet a secure water pump seal with the BESTfit Water Pump Installation Kit, engineered for GMC/Chevrolet with Duramax 6.6L engines. This high-quality kit replaces 042865 and...

Water Pump By BESTfit Fits GMC/Chevrolet W/ Duramax 6.6L EngineEnsure consistent engine temperature control with the BESTfit Water Pump for GMC/Chevrolet with Duramax 6.6L engines. This durable pump replaces 12637105, AP63563, and WP9414 and circulates...

Exhaust Gas Recirculation Valve By BESTfit Fits GMC/Chevrolet W/ Duramax 6.6L EngineKeep emissions systems functioning properly with the BESTfit EGR Valve, designed for GMC and Chevrolet Duramax 6.6L engines. This replacement for 226802, 706181, and...

Exhaust Temperature Sensor By BESTfitRestore reliable exhaust monitoring with the BESTfit Exhaust Temperature Sensor, designed for GMC and Chevrolet models and replacing 27310031, 50113601, and 904721. This high-quality sensor measures exhaust gas...

Water Pump By BESTfit Fits Mack E7 EngineKeep your engine protected from overheating with the BESTfit Water Pump for Mack E7 engines, replacing 20706171, RW4220X, and EWP3367. This high-quality water pump circulates coolant efficiently through the engine...

Exhaust Gas Recirculation Cooler By BESTfit Fits Mack CX613Restore emissions system efficiency with the BESTfit EGR Cooler for Mack CX613. This Exhaust Gas Recirculation Cooler is engineered to reduce exhaust gas temperatures before recirculation into...

Fan Clutch - Viscous Directly Controlled By BESTfit Fits Mack MP7 TerraProEnsure consistent engine cooling with the BESTfit Viscous Directly Controlled Fan Clutch, designed specifically for Mack MP7 TerraPro. This fan clutch offers 2-speed operation for...