Sale

Heating and Cooling› Overflow Tanks and Catch Cans

Rein Automotive

Engine Coolant Reservoir Expansion Tank

$149.99 $94.75 Save $55.24

SKU: EPT0128

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Rein Automotive EPT0128 is an engine coolant reservoir designed to meet OE specifications. This durable, direct-fit expansion tank is compatible with select BMW 5 Series models.

It serves as a replacement for OE numbers 17137542986 and 17137519219, ensuring a proper fit and function within the vehicle's cooling system. The product line is Rein Automotive OE Quality Expansion Tanks.
Show original supplier description
The Rein Automotive EPT0128 engine coolant reservoir is engineered to provide a direct-fit replacement that meets or exceeds Original Equipment (OE) specifications. Designed for specific BMW 5 Series models, this expansion tank is crucial for maintaining the proper functioning of your vehicle's cooling system. This reservoir is built for durability and reliability, ensuring it can withstand the pressures and temperatures typical of a cooling system. It directly replaces OE part numbers 17137542986 and 17137519219, making installation straightforward for mechanics and DIY enthusiasts alike. The "OE Quality" designation in its product line signifies Rein Automotive's commitment to producing parts that perform as intended by the original manufacturer. Compatibility is key for cooling system components. The Rein EPT0128 is specifically designed for BMW 525i, 528i, 530i, and 535i models. As with any cooling system service, it's recommended to verify exact fitment for your specific vehicle's year and configuration before installation. Proper installation ensures the integrity of the cooling system and prevents leaks or overheating issues.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRein Automotive
Part NumberEPT0128
CategoryHeating and Cooling

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

View Full Shipping Policy