Bel Ray Thumper Racing Synthetic ESTER 10W-40 Blend 4T Engine Oil

• Specifically engineered for 4-stroke single cylinder multi-valve racing engines
• Combines the finest quality synthetic esters and highly-refined mineral base oils
• Provides maximum anti-wear protection for valve-trains rings cylinders and pistons
• Delivers maximum horsepower
• Provides consistent clutch performance
• Meets or exceeds API SM and JASO MA2 requirements
• Also suitable for air-cooled/liquid-cooled 4-stroke engines and wet clutches
• Liter bottles 12 per case or 4-liter bottles 4 per case; sold each

 4-CYCLE OIL

Orders $39 and over qualify for free standard shipping via Ground (UPS, FedEx, USPS) to the contiguous 48 US states. Shipping will be calculated for orders to Alaska, Hawaii, and U.S. Territories including Puerto Rico, Guam, and U.S. Virgin Islands.

P.O. Box Shipping. If you list a PO Box and select free shipping, please add a customer note with your order including a physical shipping address. We will ship to a PO Box if the shipping is comparable to other carriers. Otherwise we may need to ship to physical address or charge additional shipping fees.

Learn about additional details and restrictions by reading our full Shipping Policy

If your order arrives and it is not right, we’ll fix it…period. Doesn't fit or you're simply not happy with your item? Return any new, unused and unaltered item within 30 days of delivery of your item. Learn about additional details and restrictions by reading our full return policy.