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Thumper Racing Synthetic Ester Blend 4T Engine Oil by Bel Ray


$14.99 USD
Maximum quantity available reached.
  • 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
    1Liter bottle
    Sold each
Sku: 99520-B1LW
10W40 1L

Please refer to your Service Manual for the recommended fluid specifications
  • Universal This is a universal fit part. It may or may not fit without modification.


This fitment information is provided to you based on the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and other important application information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the information provided.


Failure to follow manufacturer's recommendations and requirements can cause product failure resulting in serious injury or death. While effort has been taken in collecting accurate fitment information, Witchdoctors Billet Specialties LLC accepts no liability for loss or damage resulting from errors or omissions. If you believe any of the information provided is erroneous, please email: Fitment@buywitchdoctors.com


Qualifying Retail orders $99.99 or more will receive free ground shipping. Free Shipping Terms and conditions.

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Product Availability

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If your order arrives and it is not right, we will we'll fix it. We promise!

Doesn't fit or just not happy with it? You can return any new, unopened, unused or unaltered item within 30 business days of delivery receipt of your item. We will issue a refund to your original payment method.

See our full Return Policy for all of the pertinent details.

MADE IN THE U.S.A. Yes MATERIAL Synthetic Ester MODEL 4-Stroke Semi-Synthetic PACKAGING Each STYLE 4-Stroke,Motorcycle,Racing Quality,Synthetic TYPE Engine Oil VISCOSITY 10W40 VOLUME Liter

Product Style Sku Stock
Default Title99520-B1LW30

Please check your paint code. Paint codes can be obtained by checking with your dealer. You will need to provide your VIN number. Once you have the paint code, If you do not see your paint code listed give us a call. CLICK HERE To see the factory paint.