Bel-Ray Thumper Synthetic 4-Stroke Engine Oil

• Product Details

  This item is considered hazardous material. Orders containing this product will ship ground only and cannot be shipped to Alaska, Hawaii, US Territories or outside the United States.

  Bel-Ray Thumper Racing Synthetic Ester Blend 4T Engine Oil is a 4-stroke motorcycle racing oil that combines the finest quality synthetic esters and highly-refined mineral base oils specifically engineered for today's 4-stroke single cylinder, multi-valve racing engines. Provides maximum anti-wear protection for valve-trains, rings, cylinders and pistons. Delivers maximum horsepower while providing consistent clutch performance. Meets API SM and JASO MA2 requirements. Suitable for air-cooled/liquid-cooled 4-stroke engines and wet clutches.

  • For use in all 4-stroke engines requiring an oil meeting the API SG / SH / SJ / SL / SM standards.
  • For use in all 4-stroke motorcycles with or without wet clutches including those specifying the use of a JASO MA / MA1 / MA2 qualified oil.
  • Superior anti-wear - Reduced cylinder and ring wear. Longer bearing life.
  • Superior deposit control - Cleans deposits, controls sludge and varnish formation. Keeps ring lands and grooves free of carbon build-up.
  • High viscosity stability - The shear stability provides superior lubrication and film strength. Minimizes friction for maximum power.
  • Smooth power transfer - Prevents clutch grabbing for an easily controlled and efficient gear shifting and clutch operation.

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• # Part Numbers for the Bel-Ray Thumper Synthetic 4-Stroke Engine Oil

  Product Variant	Manufacturer Part #
  1 Liter / 10W40	99520-B1LW
  1 Liter / 15W50	99530-B1LW
  4 Liter / 10W40	99520-B4LW
  4 Liter / 15W50	99530-B4LW

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