Pro X Wrist Pin Bearing
M09-213206 (MFG #: 21.3206)
$12.88
Sale price
$12.88
Regular price
$15.99
Sale
-19%
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Pro X Wrist Pin Bearing for Yamaha YZ125 Dirt Bike
Pro X Wrist Pin Bearing for Yamaha YZ125 Dirt Bike
$12.88
Sale price
$12.88
Regular price
$15.99
Sale
-19%
SKU:M09-213206
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Description
ProX offers a complete line of piston pin bearings for the Dirtbike, ATV, PWC and 50cc/scooter segment. The pistons pin bearings are manufactured by the leading Japanese OEM factories.All pistons pin bearings are designed and developed to OEM specifications and are a direct and cost efficient OEM replacement.
Technical Specifications
- MFG. Part Number 21.3206
Vehicle Information
Yamaha YZ125 Dirt Bike (1974-2026)
The Yamaha YZ125, a legendary motocross racing motorcycle, has been a dominant force on tracks worldwide since its introduction in 1974, continuing its legacy through 2026. Powered by a 124cc or 125cc two-stroke single-cylinder engine, this model has consistently evolved, adapting to the demands of competitive riding. Over its extensive production run, the YZ125 has undergone several significant generational shifts. Initially air-cooled from 1974 to 1980, it transitioned to a liquid-cooled engine in 1981, marking a major performance upgrade. Further advancements included the introduction of the Yamaha Power Valve System (YPVS) in 1982 and a comprehensive overhaul in 1996 with a new chassis and engine refinements. A pivotal change occurred in 2005 with the adoption of a lightweight aluminum frame, replacing the long-standing steel unit, alongside a redesigned engine and advanced suspension. More recently, 2020 saw the debut of the YZ125X, an off-road specific trim, followed by significant engine and component revisions for both the YZ125 and YZ125X in 2022 and 2023, ensuring its continued competitiveness. FAQ:
Q: How do I know which parts fit my Yamaha YZ125?
A: To ensure perfect compatibility, please use the year and edition selector at the top of this page to specify your exact model.
Maintenance
| Component | Interval | Details |
| Engine Oil (Transmission Oil) | 5 hours (aggressive use) or 10-15 hours (recreational use) | Refers to transmission oil. Capacity of approximately 0.66 L for some models. Use 10W-30/10W-40 motorcycle transmission oil. |
| Oil Filter | During every transmission oil change (if present) | YZ125 models typically do not have a traditional engine oil filter. A screen or strainer may be present for the transmission oil. |
| Spark Plug | Inspect regularly, replace as needed | Critical wear item for two-stroke engines. Check for fouling and wear. Gap and type may vary by year. |
| Air Filter | 2-5 hours (aggressive use) or 5-15 hours (recreational use) | Intervals vary significantly by model year and dust conditions. Frequent maintenance is essential. |
| Coolant | Check before every ride; change every 6 months (racing) or annually (regular) | Applicable to liquid-cooled models (from 1981 onwards). Change or check every 40-50 hours. Capacity of approximately 0.93 L for recent models. Use ethylene glycol-based coolant. |
Maintenance intervals may vary by model year and riding conditions. It is essential to consult your vehicle's owner's manual for precise information.