

PROX
ENGINE REBUILD KIT
Out of stock · stock as of Sep 3, 2026
Shipping calculated at checkout
30-day returns on unused parts
Details
Complete rotating and reciprocating rebuild kit including crankshaft assembly, main bearings and seals, pistons and components, and a complete engine gasket kit All components were developed through extensive research and development on ProX’s in-house engine dyno Crankshafts come completely assembled using Maxima ® assembly lube and are inspected in-house for proper dimensions and trueness Connecting rods feature proprietary design done in-house, and are forged, heat-treated, and shot-peened for ultimate tensile strength and reduced stress risers Connecting rods include graded bearings in the big end to ensure proper clearance, as well as a bronze bushing in the small end, both improving longevity and performance Pistons are cast from OEM-grade alloy and feature MOS2 skirt coating and hard-anodized crown and ring grooves for improved performance and wear resistance through reduced friction and improved heat resistance Includes Japanese-sourced, Koyo main bearings along with OEM quality seals and complete gasket kit to ensure a reliable engine rebuild More applications covered in fewer part numbers with versatile gasket kits and compression ratios Available in A/B/C graded bore sizes
Specs
- Vehicle
- ATV/UTV
- Weight Lb
- 25.16
- Shipping Class
- standard


