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New conditionMiscellaneousSKU 30125

Dorman 603-778 Coolant Reservoir Overflow Expansion Tank

$37
In stock · 4 available
  • ShippingDepends on item size and packaging.
  • Local pickupAvailable in Taylorsville, UT.
Questions? Text us about SKU 30125Online: Credit/debit card, Affirm, Klarna, Afterpay, PayPal, Venmo (via PayPal), PayPal Pay Later · At the store: Cash, Credit Card, Venmo, Zelle

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  • Real photos
  • Tested in Utah
  • Ships in 2–4 business days
  • 14-day limited returns
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Description

The Dorman 603-778 Coolant Reservoir is new and essential for your vehicle's cooling system. It replaces worn tanks and prevents leaks with durable construction.

Included and condition

Included

  • Dorman 603-778 Coolant Reservoir Overflow Tank
  • Installation instructions

Condition

  • Graded New. Use the listing photos for final cosmetic review.
  • No major extra issues are called out in the listing text beyond what is shown in the photos.

Confirm exact contents in the product photos. Accessories vary per unit.

Product overview

The Dorman 603-778 Coolant Reservoir Overflow Expansion Tank is a new condition product designed to enhance your vehicle's cooling system. This essential component replaces worn or damaged coolant reservoirs, ensuring optimal performance and preventing leaks. Constructed from durable materials, it withstands high heat and pressure, making it a reliable choice for long-term use. At TamDo.us, we prioritize your shopping experience with fast shipping in 2–4 business days and a secure checkout.

Key features

  • New condition - never used
  • Durable construction for long-lasting use
  • Resistant to heat and pressure
  • Designed for precise fitting
  • Essential for vehicle cooling system maintenance

Why buy on TamDo.us

Buying pre-owned electronics on TamDo.us means lower prices than retail without sacrificing quality. We photograph each item in our Utah warehouse so you see exactly what you're buying — not stock images. Orders ship within 2–4 business days with tracking, and we offer 14-day returns on material defects. Need to inspect in person? Visit our local store at TamDous.com.

Good to know before you buy

Still unsure? Text (385) 715-6888 with SKU 30125

What is the condition of the Dorman 603-778?

The Dorman 603-778 is in new condition, ensuring optimal performance.

How quickly will my order ship?

We ship within 2–4 business days from Utah.

Is there a return policy?

Yes, we offer a 14-day return policy for your convenience.

What materials is the tank made from?

The tank is constructed from durable materials designed to resist heat and pressure.

Can I install this myself?

Yes, installation instructions are included to assist you.

Where do you ship from?

All orders ship from Salt Lake City, Utah.

$37