Wiseco Forged Series Piston Kit with Gaskets - Honda TRX350/ATC350X (1985-1989) - 81.50mm Bore (+0.50mm Oversize) - 4-Stroke
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Premium Wiseco Forged Series piston kit for vintage Honda TRX350 and legendary ATC350X three-wheeler. +0.50mm OVERSIZE (81.50mm) for lightly worn cylinders! This piston is +0.50mm oversize. Cylinder boring to 81.50mm is required for proper fit.
✓ Fits:
- Honda TRX350D: 1987-1989
- Honda TRX350: 1986-1987
- Honda ATC350X: 1985-1986
✓ Features:
- Wiseco Forged Series Piston Kit with Gaskets - Honda TRX350/ATC350X (1985-1989) - 81.50mm Bore (+0.50mm Oversize) - 4-Stroke
✓ What's Included:
- Forged Series Piston
- Ring Set
- Wrist Pin
- Wrist Pin Retainer Set
- Complete Gasket Kit
- Bore Size: 81.50 mm (+0.50mm Oversize)
- Piston Diameter: 81.45 mm
- Stroke Length: 68.00 mm
- Compression Ratio: 10.25:1
- Material: 2618 Aluminum Alloy
- Skirt Coating: Non-Coated
- Displacement: 350.4cc
- Engine Type: 4-Stroke
- Weight: 1.65 lbs
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📦 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.
