Product Description
Piston Pin (Wrist Pin) — 16mm — Kawasaki KX 125 (1982-1991) 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 (1982-1991): 124.6cc 2-Stroke Single Cylinder — Liquid Cooled Bore × Stroke: 56mm × 50.6mm (early), 54mm × 54.5mm (later) 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 2-stroke engines require more frequent top-end service — inspect pin at every rebuild ADDITIONAL CROSS-REFERENCES: KX 125 bore/stroke changed during production run — pin remained the same
1982-1991 Kawasaki KX, 125cc 2-Stroke engine, 16mm steel wrist pin, case-hardened, top end rebuild, replaces 13002-1003
Compatible with Kawasaki. Please verify your OEM part number from your original unit to help ensure fitment.
Replaces: Manufacturer Part Number: / 04.1646.5 / Cross-Reference Oem Part Numbers: / Kawasaki: 13002-1003 / Kawasaki: 13002-1066 / Pin Specifications: / Outer Diameter: 16Mm / Material: Case-Hardened Chrome Steel / Engine Specifications: / 124.6Cc 2-Stroke Single Cylinder — Liquid Cooled / Bore × Stroke: 56Mm × 50.6Mm (Early Models), 54Mm × 54.5Mm (Later Models) / Notes: / Piston Pin (Wrist Pin) Connects Piston To Connecting Rod Small End / Replace During
Applications: Kawasaki Models: / Kx 125Cc 2-Stroke — 1982-1991
Applications: ...
Piston Pin Source: Aftermarket
Product Specifications
BrandRareelectrical
Manufacturer Part Number04.1646.5A1
Item Model Number04.1646.5A1
Item Weight2 pounds
Warranty DescriptionWarranty 1 Year From Date of Purchase
Model04.1646.5A1
Number Of Items1
Part Number04.1646.5A1
Item Dimensions10 x 6 x 6 inches
Item Highlight1982-1991 Kawasaki KX, 125cc 2-Stroke engine, 16mm steel wrist pin, case-hardened, top end rebuild, replaces 13002-1003
Explicit Manufacturer Part Number04.1646.5A1
Explicit OE/OEM Part Numbersreplacement, from, Part