Wiseco Piston Kit 66.00mm - Honda ATC185, ATC185S, ATC200, ATC200S, TRX200 (1980-1986)
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
- Secure checkout — Pay in 4 available
Important: This is an oversize piston. Your cylinder must be bored to 66.00mm before this will fit. If your cylinder is still standard, order the standard bore version instead.
✓ Fits
- 1980-1983 Honda ATC185 and ATC185S (requires cylinder boring)
- 1981-1985 Honda ATC200 and TRX200
- 1981-1986 Honda ATC200S
- 191.8cc • 10.25:1 compression • 65 x 57.8mm on the 200 series
- This listing is 66.00mm bore, +1.00 over on 200 series
✓ Features
- Forged from high-silicon aluminum alloy for maximum strength and dependability
- Innovative forging design and piston skirt profile provide maximum horsepower and torque
- Handles heat and detonation far better than the original cast piston
- Uses circlip CW15
- Made in the USA
✓ What's Included
- Forged piston
- Piston rings
- Wrist pin
- Circlips
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.
