CROSS REFERENCE PART NUMBERS:
• Honda 13101-HP5-600
• Pro-X 01.1487.000
ITEM SPECIFICATIONS:
• Component: Piston Kit (Standard Bore)
• Piston Size: 86.5mm (Standard Bore)
• Bore x Stroke: 86.5mm x 71.5mm
• Displacement: 420cc
• Compression Ratio: 9.9:1
• Kit Contents: Piston, Rings, Wrist Pin, Circlips
• Material: Cast Aluminum Alloy Piston
• Engine: 420cc Liquid-Cooled Single-Cylinder 4-Stroke OHV
• Model Years: 2007-2025
COMPATIBLE MODELS:
Honda TRX420 FourTrax Rancher ATV:
• TRX420FM / TRX420FE (4x4 / 4x4 ES) (2007-2025)
• TRX420TM / TRX420TE (2WD / 2WD ES) (2007-2025)
• TRX420FA (4x4 AT) (2009-2014)
• TRX420FPA / TRX420FPM (4x4 Power Steering) (2009-2014)
PRODUCT DETAILS:
This piston kit is a direct replacement for the Honda TRX420 FourTrax Rancher utility ATV produced from 2007 through 2025 with the 420cc liquid-cooled single-cylinder 4-stroke OHV engine. The 86.5mm standard bore piston is designed for the factory cylinder bore providing factory-specified piston-to-wall clearance for optimal ring seal and compression in the TRX420 Rancher engine. Each kit includes cast aluminum alloy piston, precision-fitted piston rings, hardened wrist pin, and retaining circlips for all Honda TRX420 Rancher applications. Manufactured using low-expansion piston alloy and precision machined on CNC equipment for consistent dimensions and reliable performance in utility and recreational ATV riding conditions. The TRX420 Rancher is a versatile utility ATV featuring a dependable liquid-cooled 4-stroke OHV engine with fuel injection for excellent trail riding and work performance. Installs directly into the standard 86.5mm cylinder bore without modifications for piston replacement or top-end rebuild on all Honda TRX420 FourTrax Rancher ATV models.
PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.
WARNING - This product may expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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