Wiseco Forged Piston Kit with Gaskets - KTM 450 EXC Racing / MXC / XC-W (2003-2007) - 89.00mm Bore - 11.0:1 - ArmorGlide - 4-Stroke
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Premium Wiseco forged piston kit with complete top-end gasket set for the KTM 450cc 4-stroke platform. Features ArmorGlide® skirt coating for maximum durability and reduced friction!
✓ Fits:
- 450 EXC Racing 4-Stroke: 2003-2007
- 450 MXC: 2003-2007
- 450 XC-W: 2003-2007
✓ Features:
- Forged Series design for maximum strength and durability
- 2618 aluminum alloy construction - preferred for high-performance racing
- ArmorGlide® skirt coating for reduced friction and wear protection
- 11.0:1 compression ratio
- Complete top-end gasket kit included
- Standard bore - direct OEM replacement
- 5 years of fitment (2003-2007)
- Bore Size: 89.00 mm (Standard)
- Piston Diameter: 88.92 mm
- Stroke Length: 72.00 mm
- Compression Ratio: 11.0:1
- Material: 2618 Aluminum Alloy
✓ What's Included:
- Piston Kit #4941M08900
- Ring Set #8900ZC
- Wrist Pin #S641
- Wrist Pin Retainer Set #W5509
- Gasket Kit #W5883
Note: Wiseco ring types are not interchangeable
Note: Wiseco pistons can be fitted only with Wiseco rings
Note: Cylinder sleeves must be purchased separately if needed
Ships fast from DuneGoonShop!
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
