Wiseco Forged Series Piston Kit with Gaskets - Honda ATC185/ATC200 Series (1980-1986) - 65.50mm Bore (Oversize) - 4-Stroke
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Wiseco Forged Series Piston Kit with Gaskets - Honda ATC185/ATC200 - Oversize
Premium Wiseco Forged Series piston kit with complete gasket set for vintage Honda ATC185 and ATC200 series three-wheelers. This is an OVERSIZE (65.50mm) kit!
⚠️ Important Fitment Notes
- ATC200 models (1982-1986): +0.50mm oversized piston
- ATC185/ATC185S (1980-1983): +0.080" overbore (+2.50mm) - requires cylinder boring
Kit Includes
- Forged Series Piston
- Ring Set
- Wrist Pin
- Wrist Pin Retainer Set
- Complete Gasket Kit
Key Features
- Forged Series - premium 2618 aluminum alloy construction
- 10.25:1 compression ratio
- Complete top-end gasket kit included
- Fits multiple vintage ATC three-wheeler models
Piston Specifications
- Bore Size: 65.50 mm
- Piston Diameter: 65.45 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: 0.85 lbs
Fitment
- Honda ATC200S: 1984-1986 (+0.50mm oversize)
- Honda ATC200M: 1984-1985 (+0.50mm oversize)
- Honda ATC200ES: 1984 (+0.50mm oversize)
- Honda ATC200E: 1982-1983 (+0.50mm oversize)
- Honda ATC185S: 1981-1983 (+2.50mm oversize, boring required)
- Honda ATC185: 1980 (+2.50mm oversize, boring required)
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
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