Yamaha Motor Co., Ltd. 5NL-11633-00-00 Piston Wrist Pin

Description:

The Yamaha 5NL-11633-00-00 Piston Wrist Pin is used in internal combustion engine piston assemblies to connect the piston to the connecting rod. Commonly installed in Yamaha YZ250F and WR250F motorcycles within the crankshaft and piston system. Maintenance teams and engine builders use this part for replacement and rebuild applications to restore proper piston articulation and engine performance.

Applications:

The Yamaha 5NL-11633-00-00 piston wrist pin is used in motorcycle engine systems where smooth piston movement and reliable power transfer are required. It is commonly applied in Yamaha YZ250F and WR250F models (2001–2013 range), functioning as the pivot point between the piston and connecting rod to allow rotational motion during engine cycles. This component is critical for maintaining engine compression, durability, and performance under high-speed operation

Technical Specifications:

• Product Type: Piston Wrist Pin (Piston Pin)
• Manufacturer: Yamaha
• Part Number: 5NL-11633-00-00
• Function: Connects piston to connecting rod allowing rotational movement
• Application: Engine piston / crankshaft assembly
• Fitment: Yamaha YZ250F, WR250F motorcycles
• Material: Hardened steel (engine-grade component)
• Construction: Precision-ground cylindrical pin
• Load Type: High-speed reciprocating and rotational load
• Installation: Press-fit within piston and connecting rod assembly
• Condition Availability: OEM and aftermarket replacements available

Common Replacements:

• Yamaha 5NL-11633-10-00
• Yamaha 5NL-11633-20-00
• Wiseco Wrist Pin (YZ250F compatible)