CYLINDER KIT 40.00mm STD ALL YEARS YAMAHA PW QT 50 WITH STUDS & NUTS 4J2-11311-00-00
Complete standard-bore 40.00 mm top-end rebuild kit for Yamaha PW50 and QT50 two-stroke models. Includes cylinder, cylinder head, piston assembly, rings, gaskets, spark plug, studs, and nuts. Designed as a direct OEM replacement to restore a worn or damaged cylinder assembly. Standard bore is 40.00 mm. Kit contains 1 x cylinder, 1 x cylinder head, 1 x piston, 1 x piston pin, 1 x bearing, 2 x circlips, 2 x piston rings, 1 x head gasket, 1 x base gasket, 1 x spark plug, 4 x cylinder studs, and 4 x stud nuts. Cross-reference OEM part numbers include 4J2-11311-00-00, 4J2-11311-01-00, 4J2-11111-00-00, 517-11181-01-00, 3PT-11351-00-00, 95380-06600-00, 93310-210M0-00, and BP4-HS000-00-00. Manufacturer: Dirt Racing.
- SKU
- 56-K201.40.KIT-B
- Brand
- Dirt Racing
- Availability
- In Stock (13)
FULL DESCRIPTION
Yamaha PW50 QT50 40.00mm Standard Bore Cylinder Kit with Studs & Nuts
Restore your Yamaha PW50 or QT50's engine to peak performance with this complete 40.00mm standard bore top-end rebuild kit. Designed as a direct OEM replacement, this kit includes all the essential components needed to overhaul a worn or damaged cylinder assembly. Manufactured to exacting standards, it meets or exceeds original equipment quality, offering a cost-effective solution for your motorcycle.
Key Features:
- Direct replacement for the existing cylinder assembly.
- Comprehensive top-end rebuild kit.
- Manufactured to exacting standards for reliability.
- Meets or exceeds OEM quality specifications.
- Provides a cost-effective replacement solution.
- Includes essential studs and nuts for installation.
Included Components:
- Standard Bore Cylinder: 40.00 mm
- Cylinder Head
- Piston Assembly
- Piston Pin
- Small-End Bearing
- Circlips (x2)
- Piston Rings (x2)
- Head Gasket
- Base Gasket
- Spark Plug
- Cylinder Studs (x4)
- Stud Nuts (x4)


