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New conditionCar & Truck PartsSKU 30124

Dorman 603-109 Coolant Reservoir Overflow Tank Replacement

In stock · 2 available

ShippingDepends on item size and packaging.
Local pickupAvailable in Taylorsville, UT.

Questions? Text us about SKU 30124Online: 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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Same unit, same SKU.

TamDo.us (this page)Best price$37

eBay$2 more than TamDo.us$39

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

This product is in "New condition".

The Dorman 603-109 Coolant Reservoir Overflow Tank Replacement is an essential component for maintaining your vehicle's cooling system. Designed to fit a variety of makes and models, this overflow tank is manufactured from high-quality materials to ensure durability and reliability. It features a precise fit that helps to prevent leaks and maintain optimal coolant levels, which is crucial for engine performance. The tank is engineered to withstand extreme temperatures and harsh conditions, making it a long-lasting solution for your vehicle's cooling needs. With easy installation and a direct fit design, this replacement tank is perfect for DIY enthusiasts and professional mechanics alike.

Item Specifics: Dorman 603-109 Coolant Reservoir Overflow Tank Replacement

Included and condition

Included

Dorman 603-109 Coolant Reservoir Overflow Tank
Installation instructions
Limited lifetime warranty details

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 603-109 Coolant Reservoir Overflow Tank Replacement is a brand new, factory-sealed component essential for your vehicle's cooling system. This overflow tank is designed to fit a variety of makes and models, ensuring a precise fit that helps prevent leaks and maintain optimal coolant levels. Measuring 12 x 8 x 6 inches and weighing just 1.5 lbs, this tank is made from high-quality plastic for durability and reliability. At TamDo.us, we pride ourselves on our fast shipping, with orders typically shipped within 2–4 business days.

Key features

Brand new / factory sealed condition
Direct fit installation for easy setup
Durable plastic material for longevity
Limited lifetime warranty included
Compatible with universal brands

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 30124

Is this coolant reservoir tank compatible with my vehicle?

The Dorman 603-109 is designed to be a universal fit for various makes and models.

What is the shipping time for this product?

We typically ship within 2–4 business days from Utah.

Does this product come with a warranty?

Yes, it includes a limited lifetime warranty for your peace of mind.

What is your return policy?

We offer limited 14-day coverage for eligible material defects or items significantly different from the listing. Cosmetic wear shown in the photos and buyer preference are not covered.