Dorman 902-5403 heavy-duty fluid reservoir cap for compatible Freightliner, Kenworth, and Peterbilt trucks
Dorman 902-5403 cap side profile showing precise fit for replacement
Dorman 902-5403 heavy-duty fluid reservoir cap for compatible Freightliner, Kenworth, and Peterbilt trucks
Dorman 902-5403 cap side profile showing precise fit for replacement

Dorman 902-5403 Heavy-Duty Fluid Reservoir Cap | Direct Replacement for Freightliner, Kenworth & Peterbilt

Replace cracked or missing coolant reservoir caps with this direct replacement from Dorman. The 902-5403 cap is...
Vendor: Dorman
Availability: In stock
£28.43
£28.43
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Dorman 902-5403 heavy-duty fluid reservoir cap for compatible Freightliner, Kenworth, and Peterbilt trucks

Dorman 902-5403 Heavy-Duty Fluid Reservoir Cap | Direct Replacement for Freightliner, Kenworth & Peterbilt

£28.43
Dorman 902-5403 heavy-duty fluid reservoir cap for compatible Freightliner, Kenworth, and Peterbilt trucks
Dorman 902-5403 cap side profile showing precise fit for replacement

Dorman 902-5403 Heavy-Duty Fluid Reservoir Cap | Direct Replacement for Freightliner, Kenworth & Peterbilt

£28.43
Description
Description
x

Replace cracked or missing coolant reservoir caps with this direct replacement from Dorman. The 902-5403 cap is engineered to mirror the original cap's dimensions, enabling a simple, reliable swap that helps keep the cooling system sealed during operation.

Before you buy, use the garage tool to confirm fitment for your exact vehicle trim. This part is designed as an application-specific replacement, so it fits the reservoir cap in select Freightliner, Kenworth, and Peterbilt models and years with the goal of restoring proper sealing and performance.

Key benefits

  • Direct replacement that mirrors the original cap’s dimensions for a hassle-free swap
  • Application-specific design ensures fit on select years, makes, and models
  • Seamless fit thanks to reverse-engineered timing from the OE part
  • Value-conscious choice that’s typically more affordable than dealer replacement
  • Garage tool check helps verify compatibility before purchase

Fits these models (selected years)

  • Freightliner Cascadia: 2010–2014
  • Freightliner Columbia: 2010–2014
  • Kenworth T660: 2008–2010
  • Kenworth T800: 2008–2010
  • Kenworth W900: 2008–2010
  • Peterbilt 330: 2008–2010
  • Peterbilt 335: 2008–2010
  • Peterbilt 362: 2008–2010
  • Peterbilt 365: 2008–2010
  • Peterbilt 367: 2008–2009
  • Peterbilt 384: 2008–2010
  • Peterbilt 386: 2008–2009
  • Peterbilt 387: 2008–2010
  • Peterbilt 388: 2008–2010
  • Peterbilt 389: 2008–2009

Note: Fitment can vary by trim level and year. Always confirm with the garage tool before purchasing to ensure compatibility with your exact truck configuration.

FAQ

Q: Will the Dorman 902-5403 cap fit my Freightliner, Kenworth, or Peterbilt?

A: Yes—confirm fitment with the garage tool for your exact model year and trim before purchase.

Q: What is the main benefit of this Dorman coolant reservoir cap?

A: A direct replacement with a precise seal can help maintain proper sealing and prevent leaks.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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