PISTON KIT 71-75 HUSQVARNA CR WR 400 84.0mm 2.5mm OVER VINTCO PSU04-2.5
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Spread the cost with 
VintCo PSU04-2.5 is a complete piston kit for vintage Husqvarna 2-stroke motorcycles, including piston, rings, pin and clips. It fits CR400 models from 1971 to 1974 and WR400 models from 1974 to 1975. This forged piston, manufactured in Germany, features a MoS2 coating for running-in. The nominal piston size is 84.0 mm with a +2.5 mm oversize, resulting in a piston size of 83.93 mm and a clearance of 0.07 mm. A wrist pin bearing is sold separately. Additional size options are available.
- SKU
- VIN-PSU04-2.5
- Brand
- Vintco
- Availability
- In Stock (1)
Fitments (6)
| Make | Model | Year |
|---|---|---|
| HUSQVARNA | CR 400 | 1971 |
| HUSQVARNA | CR 400 | 1972 |
| HUSQVARNA | CR 400 | 1973 |
| HUSQVARNA | CR 400 | 1974 |
| HUSQVARNA | WR 400 | 1974 |
| HUSQVARNA | WR 400 | 1975 |
- SKU
- VIN-PSU04-2.5
- Brand
- Vintco
- Availability
- In Stock (1)
FULL DESCRIPTION
VintCo Piston Kit for Vintage Husqvarna CR/WR 400
Restore the performance of your vintage Husqvarna motorcycle with this complete VintCo Piston Kit. Engineered for durability and precise fitment, this kit is designed for specific Husqvarna CR400 and WR400 models, ensuring your machine runs as it should.
This comprehensive kit includes everything needed for a piston replacement: the piston itself, piston rings, a wrist pin, and retaining clips. Crafted using modern manufacturing techniques and high-quality materials, this piston kit offers performance comparable to original equipment specifications. The forged piston is manufactured in Germany, known for its precision engineering. For enhanced break-in and reduced friction, the piston features a MoS2 coating.
Key Features:
- Complete Piston Kit: Includes piston, rings, pin, and clips for a full replacement.
- Vintage Husqvarna Compatibility: Specifically designed for select CR400 and WR400 models.
- Forged Piston Construction: Offers superior strength and durability.
- MoS2 Running-in Coating: Facilitates optimal piston and cylinder wall break-in.
- German Manufacturing: Produced in Germany, ensuring high standards of quality.
- OEM Specification Fitment: Designed for a precise fit and reliable performance.
Specifications:
- Nominal Piston Size: 84.0 mm
- Oversize: +2.5 mm
- Actual Piston Size: 83.93 mm
- Recommended Piston to Cylinder Clearance: 0.07 mm
- Country of Manufacture: Germany
Important Notes:
- A wrist pin bearing is sold separately and may be required for installation.
- Additional piston sizes are available to suit various engine needs.
- Always verify compatibility using OEM part numbers before purchase.
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).
Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.