Wiseco Forged Series Piston Kit with Gaskets - Honda ATC185/ATC200 Series (1980-1986) - 65.00mm Bore (Standard/Oversize) - 4-Stroke
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Wiseco Forged Series Piston Kit with Gaskets - Honda ATC185/ATC200 - Standard/Oversize
Premium Wiseco Forged Series piston kit for vintage Honda ATC185 and ATC200 series three-wheelers. 65.00mm bore - standard for ATC200 models, +2.00mm oversize for ATC185!
⚠️ Important Fitment Notes
- ATC200 models (1982-1986): Standard bore replacement
- ATC185/ATC185S (1980-1983): +0.080" overbore (+2.00mm) - requires cylinder boring
Kit Includes
- Forged Series Piston
- Ring Set
- Wrist Pin
- Wrist Pin Retainer Set
- Complete Gasket Kit
Piston Specifications
- Bore Size: 65.00 mm
- Piston Diameter: 64.95 mm
- Stroke Length: 57.80 mm
- Compression Ratio: 10.25:1
- Material: 2618 Aluminum Alloy
- Skirt Coating: Non-Coated
Engine Specifications
- Displacement: 191.8cc
- Engine Type: 4-Stroke
- Weight: 0.95 lbs
Fitment
- Honda ATC200S: 1984-1986 (Standard)
- Honda ATC200M: 1984-1985 (Standard)
- Honda ATC200ES: 1984 (Standard)
- Honda ATC200E: 1982-1983 (Standard)
- Honda ATC185S: 1981-1983 (+2mm Oversize)
- Honda ATC185: 1980 (+2mm Oversize)
📦 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.
