CYLINDER KIT 40.00mm STD 01-06 POLARIS 50 SCRAMBLER SPORTSMAN PREDATOR
Complete 40.00 mm top-end cylinder kit for 50 cc two-stroke Polaris youth ATVs. Includes cylinder, piston, piston rings, gaskets, and cylinder head. Features a 40.00 mm bore cylinder, 10 mm wrist pin compatibility, and 50 mm cylinder stud spacing. Engine type is single-cylinder, two-stroke, air-cooled with a bore x stroke of 40.00 mm x ~39.1 mm (~49 cc). Wrist pin diameter is 10 mm. Cylinder stud spacing is 50 mm centre-to-centre. Spark plug type is NGK BPR7HS. Cross-reference OEM part numbers: Cylinder 0451718, Cylinder head 0451717, Base gasket 0450008, Head gasket 0450003, Piston 0453833, Spark plug 0450005. Not suitable for 90 cc engines which require a 52 mm bore kit.
- SKU
- 56-K239.40.CK
- Brand
- Dirt Racing
- Availability
- In Stock (7)
FULL DESCRIPTION
Complete Cylinder Kit for 50cc Polaris Youth ATVs - 40.00mm Bore
Upgrade your 50cc Polaris youth ATV with this comprehensive top-end cylinder kit. This kit is designed to provide a direct replacement for your original cylinder, piston, rings, gaskets, and cylinder head, ensuring a complete and effective repair or performance enhancement.
Key Features:
- Complete Top-End Kit: Includes cylinder, piston, piston rings, base gasket, head gasket, and cylinder head for a full engine overhaul.
- Engine Specific: Engineered for 50 cc two-stroke Polaris youth engines, offering a perfect fit and optimal performance.
- Precision Bore: Features a 40.00mm bore for the specified 50cc engine displacement.
- Standard Components: Designed for compatibility with 10mm wrist pins and 50mm cylinder stud spacing.
- Durable Construction: Built with quality materials for longevity and reliable operation in demanding off-road conditions.
Specifications:
- Engine Type: Single-cylinder, two-stroke, air-cooled
- Bore: 40.00mm
- Stroke: Approximately 39.1mm
- Displacement: Approximately 49cc
- Wrist Pin Diameter: 10mm
- Cylinder Stud Spacing: 50mm (center-to-center)
- Spark Plug Type Compatibility: NGK BPR7HS
