Universal Parts Wrist Pin Bearing, 10mm 13.7mm Outer Dia.
Universal Parts Wrist Pin Bearing, 10mm 13.7mm Outer Dia.
$17.68
Out of stock
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Product Details
Description
Universal Parts 10mm Wrist Pin Bearing: 2-Stroke
Key Details
- 105-29
Specifications
- Length: 12.6mm
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 2-Stroke
- Fitment Notes: Universal Fit
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Is this for 2-Stroke scooters?
A: This SKU is listed with 2-Stroke engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 0.3 lbs |
|---|---|
| Dimensions | 4 × 4 × 1 in |
| Condition | New |
|---|
Smooth Rotation: Universal Parts 10mm Wrist Pin Bearing
Ensure the vital connection between your piston and connecting rod remains friction-free with the Universal Parts 10mm Wrist Pin Bearing. Engineered for 50cc 2-stroke engines, this small-end needle bearing is designed to withstand the rapid oscillating movements and high temperatures of the combustion chamber. Whether you are performing a top-end refresh or a full engine rebuild, this precision-ground bearing provides the stable support needed to prevent premature wrist pin wear and engine vibration.
Technical Performance Features
- Precision Needle Rollers: High-grade steel rollers provide maximum load-bearing capacity while maintaining a thin profile for tight engine tolerances.
- Friction-Reducing Design: Optimized cage architecture allows for maximum oil penetration, ensuring the bearing stays lubricated even at high RPMs.
- Durable Metal Construction: Manufactured to resist thermal expansion and shock-loading, essential for the longevity of small-displacement 2-stroke builds.
- Direct Fitment: Engineered as a standard replacement for 10mm wrist pin applications across various scooter and moped platforms.
Comprehensive Fitment Guide
This bearing is a standard fit for many 50cc 2-Stroke engines using a 10mm wrist pin:
| Engine Family | Typical Models |
|---|---|
| Minarelli / Yamaha Style | Jog, Zuma 50 (Pre-2002), BWS 50 |
| Genuine | Buddy 50, Roughhouse 50, Rattler 50 |
| Chinese 2-Stroke (1PE40QMB) | Adly, Hammerhead, Keeway, Vento |
| General Size Match | Fits most 10mm ID / 13.7mm OD applications |
Technical Specifications
- Inner Diameter (ID): 10.2mm
- Outer Diameter (OD): 13.75mm
- Length: 12.6mm
- Material: Hardened Steel
Mechanic's Note: The wrist pin bearing is often the most overlooked part of a top-end rebuild.
Safety Warning: A worn bearing can lead to wrist pin "slap" which eventually destroys both the piston and the rod.
Pro Tip: Always soak your new bearing in 2-Stroke Oil for several minutes before installation to ensure it isn't "dry" during the critical first few seconds of engine startup!
SKU: 105-29
Vendor: Universal Parts
