ProX 10.EK5805.B1 Complete Engine Rebuild Kit

The ProX 10.EK5805.B1 Complete Engine Rebuild Kit provides everything needed for a comprehensive engine overhaul in a single package. This all-inclusive kit features a fully assembled crankshaft, main bearings and seals, pistons with components, and a complete engine gasket set—delivering a professional-grade rebuild solution.

Premium Crankshaft Assembly:

• Arrives fully assembled with Maxima® assembly lube for immediate installation
• Inspected in-house for proper dimensions and trueness to ensure reliable operation
• Proprietary connecting rod design featuring forged construction, heat-treatment, and shot-peening for maximum tensile strength
• Connecting rods include graded bearings in the big end and bronze bushing in the small end for optimal clearance and extended service life

High-Performance Piston Technology:

• Cast from OEM-grade alloy for durability and precise tolerances
• MOS2 (molybdenum disulfide) skirt coating reduces friction and improves wear resistance
• Hard-anodized crown and ring grooves provide superior heat resistance and longevity
• Available in A/B/C graded bore sizes for precise fitment

Quality Components Throughout:

• Japanese-sourced Koyo main bearings ensure smooth, reliable operation
• OEM-quality seals and complete gasket kit included for proper sealing
• All components developed through extensive dyno testing on ProX's in-house engine dynamometer
• Versatile gasket kits and compression ratios cover more applications with fewer part numbers

ProX Engine Rebuild Kits deliver professional-quality components engineered for performance and reliability, making them the ideal choice for serious engine rebuilds.