Description
Ensure precise cylinder-to-crankcase alignment on your GY6 engine with this OEM 10x16 cylinder base dowel pin pair. These hollow steel locating pins keep the cylinder perfectly indexed to the crankcase during assembly, preventing gasket blowout and maintaining proper compression. Sold as a pair (2 pins).
Engine Code Compatibility
Fits 157QMJ-based 125cc and 150cc GY6 4-stroke engines with the following engine codes:
- 157QMJ, 161QMK, 152QMI, 1P61QMK
- YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ
- 1P57QMJ, BN157QMJ, BN161QMK-A, and other QMJ / QMK / QMI variants
Don't see your engine code? If it includes "QM" or "FM", this pin is likely compatible with your engine.
Features
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OEM Specification: Matches factory dimensions for precise cylinder-to-crankcase alignment.
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Hollow Steel Construction: Durable steel with hollow bore for lightweight precision fitment.
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Prevents Gasket Blowout: Correct alignment reduces the risk of head gasket and base gasket failure.
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Sold as a Pair: Includes both pins needed for a complete engine rebuild or cylinder replacement.
Specifications
- Outer Diameter: 10mm
- Length: 16mm
- Quantity: 2 pins (sold as a pair)
- SKU: 164-186
California Prop 65 Warning: www.p65warnings.ca.gov
Model Fitment
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