Universal Parts
Minarelli 40mm Piston Kit - 10mm or 12mm Wrist Pin
SKU 161-90 12
$21.00
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Shipping calculated at checkout.
Description
This piston, pin, rings, and circlip set is a direct replacement for 50cc 2-stroke Minarelli 1PE40QMB (Jog-style) engines. Available in 10mm or 12mm piston pin options to accommodate different engine configurations — select the correct pin size from the drop-down menu before ordering. SKU: 161-90.
Features:
- Complete piston kit: piston, pin, rings, and 2 circlips included
- 40mm bore diameter — direct OEM replacement for Minarelli 1PE40QMB / 40QMB engines
- Available in 10mm or 12mm piston pin to match your engine configuration
- Fits Yamaha Jog-based 50cc 2-stroke engines and Chinese 40QMB clones
Specifications:
- Piston diameter: 40mm
- Piston height: 50mm
- Piston pin: 10mm or 12mm (select variant)
- Includes: piston, pin, rings, and 2 circlips
- Engine compatibility: Minarelli 1PE40QMB / 40QMB 50cc 2-stroke
- SKU: 161-90 (suffix -10 or -12 by pin size)
Compatibility:
| Engine | Common Applications |
|---|---|
| Minarelli 1PE40QMB (40QMB) | Yamaha Jog 50, Yamaha BWS 50, and Chinese 40QMB-based 50cc 2-stroke scooters |
Product Diagrams
Features
Specifications
Piston diameter: 40mm | Piston height: 50mm | Pin options: 10mm or 12mm | Includes: piston, pin, rings, 2 circlips | Engine: Minarelli 1PE40QMB / 40QMB 50cc 2-stroke | SKU: 161-90
Model Fitments
Minarelli 1PE40QMB (40QMB) 50cc 2-stroke: Yamaha Jog 50, Yamaha BWS 50, and Chinese 40QMB-based 50cc 2-stroke scooters
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Same day shipping for orders placed before 2PM (CST) M-F
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30-day return period on eligible items
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Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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