2003 BMW 745i Coolant Reservoirs

Your 2003 BMW 745i might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Coolant Reservoirs you desperately need.

We currently carry 3 Coolant Reservoirs to choose from for your 2003 BMW 745i, and our inventory prices range from as little as $79.99 up to $119.06.

On top of low prices, Advance Auto Parts offers 3 different trusted brands of Coolant Reservoirs for the 2003 BMW 745i. We only sell parts from trusted brands like Dorman so that you can find quality parts you can count on.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Coolant Reservoirs stock in-person!

Coolant Reservoirs for Your 2003 BMW 745i

Dorman – Pressurized Coolant Reservoir: Black, Plastic, Original Equipment Replacement (Part No.603-259)

Pressurized Coolant Reservoir: Black, Plastic, Original Equipment Replacement

from

$114.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.

Product Features:
  • Direct replacement – this engine coolant reservoir matches the fit and function of the original part
  • Ideal solution – engineered for a seamless installation
  • Durable construction – manufactured from quality materials to withstand underhood heat and vibration
  • Trustworthy design – backed by 100 years of automotive aftermarket experience
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Rein – Expansion Tank (Part No.EPT0021)

Expansion Tank

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$79.99
Rein Automotive OE quality expansion tanks, install, fit and perform the way the original manufacturer intended. These tanks are designed to match or exceed the OE materials used and are produced from virgin plastic with no regrind to prevent cracking from heat cycles and ensure the plastic is durable and will have a long service life.

Product Features:
  • Produced from virgin plastic meeting/exceeding OE specifications and ensuring long life
  • Resistant to cracking and wear from heat cycles preventing coolant loss
  • Direct fitment allows easy installation
  • Manufactured to strict engineering standards/specifications in materials and tolerances
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Behr – Behr Expansion Tank (Part No.G1030451073BEH)

Behr Expansion Tank

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$119.06
The Behr expansion tank is made of the highest quality materials and is engineered to meet or exceed the OEM specifications for performance, fit and durability.

Product Features:
  • OE-Equivalent and Direct Fit for easy Installation.
  • OE style connections and fittings.
  • Made of highly durable materials.
  • Resistant to thermal wear and cracking.
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