OEM Grade Piston Pin Compatible with 1986-2006 Kawasaki KDX 200 16mm 2-Stroke Wrist Pin 13002-1053 Top End Rebuild Kit 198cc Outer Case-hardened Compression Power Replace Manufacturer

Piston Pin (Wrist Pin) — 16mm — Kawasaki KDX 200 (1986-2006)

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 KDX 200 (1986-2006): 198cc 2-Stroke Single Cylinder — Liquid Cooled
• Bore × Stroke: 66mm × 58mm — Compression: 7.9:1 — Power: 38 HP @ 8,000 RPM

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
• KDX 200 produced for 20+ years with same pin — extensive aftermarket support

ADDITIONAL CROSS-REFERENCES:
• Compression Ratio: 7.9:1
• KDX 200 changed from air-cooled to liquid-cooled in 1988 — same piston pin throughout