Maxiforce Basic Engine Kit, Standard Pistons, Standard Main Bearings, .010″ Rod Bearings, Turbo, 3054T for Caterpillar BK503

Aftermarket Basic Engine Kit. Direct replacement for OEM BK503-STD/10.

Please verify fitment against your equipment’s serial and engine casting numbers before ordering. Cross-references are provided as a guide; the customer is responsible for confirming compatibility.