Thumper® Racing Synthetic Ester Blend 4T Engine Oil — 4 L (1.05 US gal), 10W-40, 4-Stroke

BEL-RAY Thumper® Racing Synthetic Ester Blend 4T Engine Oil — 4 L (1.05 US gal), 10W-40, 4-Stroke

BEL-RAY
3601-0142
99520-B4LW
High-performance 4T engine oil for single-cylinder, multi-valve off-road and racing motorcycles and ATVs. Delivers anti-wear protection, smoother shifting, consistent clutch performance, and durability under extreme racing conditions.
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Thumper® Racing Synthetic Ester Blend 4T Engine Oil is a high-performance lubricant formulated for single-cylinder, multi-valve off-road and racing motorcycles and ATVs.

  • Combines high quality synthetic esters and highly refined mineral base oils with premium additives
  • Formulated specifically for single-cylinder multi-valve off-road and racing motorcycle and ATV engines
  • Provides excellent anti-wear protection for valve trains, rings, cylinders, and pistons
  • Includes extreme pressure additives to offer smoother shifting and consistent clutch performance
  • Designed to withstand extreme racing conditions while maximizing horsepower
  • Recommended for riders changing oil every 2–4 hours for motocross or 3500–4000 miles for dual sport use

Ideal for competitive riders who demand reliable protection and consistent performance under the toughest conditions. 🏁

: 3601-0142
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Data sheet

Type
Engine
Units
Each
Brand
BEL-RAY
Application
4-Stroke
Packaging
4 per Case, Sold Each
Oil Base
Ester (Synthetic)
Meets or Exceeds Requirements for
JASO MA2, API SN
Viscosity (Weight)
10W-40