TOP END PISTON & GASKET KIT 66.4MM YAMAHA YZ 250 99-24, ATHENA P4F0664267019B, SET B
4.4 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 
18+, T&Cs apply
Athena Piston & Gasket Kit. Bore Diameter: 66.35mm. Compression Ratio: STD. Displacement: 250cc. Big End Pin Diameter: 18x13x53mm. Net Weight: 0.58 Kg. Number Of Segments: 2. Piston Head Type: Domed. Piston Pin Type: Biconical. Piston Type: Forged.
- SKU
- 56-T1031.B_ATH
- Brand
- Athena
- Availability
- In Stock (1)
- Variant Id
- 316165
FULL DESCRIPTION
Athena Top End Piston & Gasket Kit - 66.4mm
Upgrade your engine's performance with this high-quality top end piston and gasket kit from Athena. Designed for durability and optimal power output, this kit provides everything needed to refresh your motorcycle's top end.
- Piston Type: Forged
- Piston Head Type: Domed
- Piston Pin Type: Biconical
- Number Of Segments: 2
- Bore Diameter: 66.35mm
- Displacement: 250.00cc
- Compression Ratio: STD
- Big End Pin Diameter: 18x13x53mm
- Net Weight: 0.58 Kg
This comprehensive kit includes a premium forged piston and all necessary gaskets for a complete top-end rebuild. Ensure your engine runs at peak efficiency with Athena's precision-engineered components.
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.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.