CYLINDER KIT 40.00mm STD 01-06 POLARIS 50 SCRAMBLER SPORTSMAN PREDATOR
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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 (6)
Fitments (6)
| Make | Model | Year |
|---|---|---|
| POLARIS | PREDATOR 50 | 2001 |
| POLARIS | PREDATOR 50 | 2002 |
| POLARIS | PREDATOR 50 | 2003 |
| POLARIS | PREDATOR 50 | 2004 |
| POLARIS | PREDATOR 50 | 2005 |
| POLARIS | PREDATOR 50 | 2006 |
- General Colour C
- Black
- General Product Group
- Engine
- General Product Type
- Cylinder Kits
- General Size
- 40.00mm
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- Variant Id
- 313865
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
QUESTIONS? JUST ASK
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Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
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