ProX Engine Rebuild Kit +0.01 Mm Oversize Bore - Polaris RZR 800 2011-2014
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
- Secure checkout — Pay in 4 available
✓ Fits
- Polaris Ranger RZR 800 S 2011
- Polaris RZR S 800 4x4 2012-2013
- Polaris Ranger RZR 4 800 2013
- Polaris RZR S 800 2014
✓ Features
- 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 Pro-X 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
✓ What's Included
- (1) ProX Engine Rebuild Kit +0.01 Mm Oversize Bore
✓ Specs
- Brand: ProX
- Manufacturer part #: 10.EK5805.B1
- Engine Type: 4-Stroke
- Skirt Coating: Moly Coated
- Bore - Oversize Metric: +0.01 mm
- Cooling System: Liquid Cooled
- Piston Material: Aluminum Alloy
- Bore Size Metric: 80.01 mm
- Condition: New
Ships fast from DuneGoonShop!
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
