Rareelectrical Piston Pin Compatible With 1992-1996 Kawasaki Kx 125 Yamaha Yz 125 16Mm Wrist Pin 13002-1087 4Pe-11633-00-00 Top End Rebuild 6Cc 2-Stroke 280-11633-00-00 New Outer Case-Hardened Replace

Piston Pin (Wrist Pin) — 16mm — Kawasaki KX 125 / Yamaha YZ 125 Specifications: Outer Diameter: 16mm Material: Case-hardened chrome steel — heat treated for maximum durability Surface Finish: Mirror-polished to minimize friction and wear Fitment: Direct OEM replacement — drop-in fit with no modifications Engine Compatibility: Kawasaki KX 125 (1992-1993): 124.6cc 2-Stroke — 54mm × 54.5mm bore/stroke Yamaha YZ 125 (1994-1996): 124.9cc 2-Stroke — 54mm × 54.5mm bore/stroke 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 2-stroke engines require more frequent top-end service than 4-strokes Installation Notes: Always replace piston pin circlips — never reuse old circlips Apply two-stroke premix oil 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 Warm piston gently to ease pin installation — do not use excessive force ADDITIONAL CROSS-REFERENCES: Kawasaki KX 125: 124.6cc 2-Stroke Single Cylinder — Liquid Cooled — 54mm × 54.5mm bore/stroke Yamaha YZ 125: 124.9cc 2-Stroke Single Cylinder — Liquid Cooled — 54mm × 54.5mm bore/stroke

• Compatible with Kawasaki, Yamaha. Please verify your OEM part number from your original unit to help ensure fitment.
• Replaces: Manufacturer Part Number: / 04.1644.5 / Cross-Reference Oem Part Numbers: / Kawasaki: 13002-1087 / Yamaha: 280-11633-00-00 / Yamaha: 4Pe-11633-00-00 / Pin Specifications: / Outer Diameter: 16Mm / Material: Case-Hardened Chrome Steel / Surface Finish: Mirror-Polished For Minimal Friction / Engine Specifications: / Kawasaki Kx 125: 124.6Cc 2-Stroke Single Cylinder — Liquid Cooled — 54Mm × 54.5Mm Bore/Stroke / Yamaha Yz 125: 124.9Cc 2-Stroke Single Cylinder
• Applications: Kawasaki Models: / Kx 125Cc 2-Stroke — 1992-1993 / Yamaha Models: / Yz 125Cc 2-Stroke — 1994-1996
• Applications: ...
• Piston Pin Source: Aftermarket