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SKU: 99550-4L
Svītrkods: 0690509200829

Bel-Ray Thumper Racing Works Full Synthetic Ester 4T Engine Oil (10W-50)

  • Designed for single-cylinder, multi-valve 4-stroke racing engines
  • Suitable for air-cooled and liquid-cooled engines with wet clutches
  • Provides maximum horsepower and consistent clutch performance
  • Superior wear protection for valve-trains, rings, cylinders, and pistons
  • Meets API SN and JASO MA2 standards for high-performance motorcycles
  • Formulated with a synthetic ester blend for extreme racing conditions

Packaging Options

  • 1L Bottle (Part #: 99550-B1LW) – Sold in cases of 12
  • 4L Bottle (Part #: 99550-B4LW) – Sold in cases of 4

Manufactured by Calumet Branded Products, LLC, Indianapolis, Indiana.