Z1, Z1R, KZ900 & KZ1000 Road Comp Forged Piston Kit - 69.94mm – K4026D400-4
4.4 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 
18+, T&Cs apply
- SKU
- WOSS_K4026D400-4
- Brand
- Wossner
- Availability
- In Stock (2)
- Bore Size
- 69.94mm
- Clip Part Number
- CW17
- Compression Height
- 24.2mm
- Kit Part Number
- K4026
Show more +13Show less
- Oem Comp Ratio
- 8.5:1
- Original Sku
- K4026D400-4
- Over Size
- 4mm
- Pin Part Number
- WP090-SP
- Pin Size
- 17mm
- Piston Number
- 69.94mm – K4026D400-4
- Piston Size
- 69.94mm
- Product Type
- Forged Piston Kit
- Ring Part Number
- 700XDS-3
- Stroke
- 66mm
- Vehicle Make
- Kawasaki
- Wossner Comp Ratio
- 10.25:1
- Yom From
- 1973-1975 - Z1, 1976-1977 - KZ900, 1977 - 1980 - KZ1000
FULL DESCRIPTION
Pro Series Forged Piston Kit, 69.94mm Bore
A Pro Series forged piston kit for street bikes, with a 69.94mm bore, a 24.2mm compression height and a 10.25:1 compression ratio.
Key Features
- Pro Series forged piston
- Round style design
- Three ring design
- Requires rebore
Specifications
- Bore size: 69.94mm
- Piston size: 69.94mm
- Oversize: 4mm
- Compression height: 24.2mm
- Pin size: 17mm
- Stroke: 66mm
- Compression ratio: 10.25:1
- Ring part number: 700XDS-3
- Pin part number: WP090-SP
- Clip part number: CW17
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
Call or email us with your make, model and year and we will check it for you before you order.
UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. 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.
More answers in our FAQ.
RELATED PARTS
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.