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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€33.72
€45.99
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  Delivery policy

In stock items will be shipped within 1-3 days.

  Return policy

You can return the products within 14 days for a full refund, check our returns policy.

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
In Stock

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

Shipping Policy

Shipping Areas:

We ship to:

  • Spain (Peninsula and Balearic Islands)
  • European Union countries

We do not ship to the Canary Islands, Ceuta, or Melilla.

Shipping Times:

  • Spain (Peninsula): 2–4 business days
  • Balearic Islands: 3–5 business days
  • EU countries: 3–7 business days depending on destination

Shipping Costs:

Shipping costs are calculated automatically at checkout based on destination and weight.

Free shipping may be offered for qualifying orders, as specified on our website.

Order Processing:

Orders are processed within 1–2 business days after payment confirmation. Orders placed on weekends or public holidays are processed the next business day.

Delivery Issues:

If your order is delayed or arrives damaged, you must notify us within 14 calendar days. We will investigate the issue and offer a resolution in accordance with applicable consumer protection laws.

Return & Withdrawal Policy

Right of Withdrawal:

In accordance with Royal Legislative Decree 1/2007 (Ley de Defensa de los Consumidores y Usuarios), you have the right to withdraw from your purchase within 14 calendar days from the date of receipt, without giving any reason.

To exercise this right, contact us via email or through our website, providing your order number and contact details.

Return Conditions:

  • Products must be unused, in original condition and packaging.
  • Return shipping costs are the responsibility of the customer, unless the product is defective or sent in error.
  • Refunds will be issued within 14 days of receiving the returned goods.

Items Excluded from Return:

  • Custom or personalized products
  • Sealed items that were unsealed after delivery and are unsuitable for return due to hygiene (e.g. cosmetics, personal care)
  • Digital content delivered electronically once download or streaming has begun

If you want to return an item, please contact us first to give you detailed instructions.