Piston Pin Compatible With 1988-2006 Honda Trx 350 Rancher Trx 300 Trx-Ex 17Mm Wrist Pin

Manufacturer Part Number:
04.1755

Cross-Reference OEM Part Numbers:
Honda: 13111-HC0-000

Pin Specifications:
• Outer Diameter: 17mm
• Material: Case-hardened chrome steel

Engine Specifications:
• TRX300/300EX/300FW: 282cc SOHC 4-Stroke — Air Cooled — 74mm × 65.5mm bore/stroke
• TRX350 Rancher: 329cc SOHC 4-Stroke — Air Cooled — 78.5mm × 68mm bore/stroke
• TRX-X 250: 229cc 4-Stroke — Air Cooled

Notes:
• Piston pin (wrist pin) connects piston to connecting rod small end
• Same pin used across multiple Honda ATV engine sizes (250cc, 282cc, 329cc)
• Replace during top-end rebuild or when pin shows wear, scoring, or discoloration
• Always replace circlips when removing pin

Function:
The piston pin (also called a wrist pin or gudgeon pin) is the hardened steel shaft that connects the piston to the connecting rod small end. It transfers combustion force from the piston to the connecting rod while allowing the rod to pivot as the crankshaft rotates. A worn, scored, or loose piston pin causes knocking noise, accelerated bore wear, and potential catastrophic engine failure.

When to Replace:
• During any top-end rebuild (piston, rings, cylinder re-bore/re-plate)
• When pin shows visible wear, scoring, discoloration, or blue heat marks
• When pin has measurable play in the connecting rod small end bearing
• Recommended every 2nd piston replacement even if pin appears serviceable

Installation Notes:
• Always replace piston pin circlips — never reuse old circlips
• Apply assembly oil or premix to pin before installation
• Ensure circlips are fully seated in their grooves — improper seating causes engine damage
• Verify connecting rod small end bearing condition before reassembly
• Same piston pin fits across multiple Honda ATV models — verify by OEM part number 13111-HC0-000

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