Heating and Cooling› Heaters

Rein

Heater Hose

$7.97

SKU: 11531289377

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Rein 11531289377 is a heater hose designed for specific BMW E30 models with M20 engines.

This hose connects the thermostat housing to the heater valve, ensuring proper circulation of engine coolant to the vehicle's heater core. It is constructed to withstand engine heat and ozone resistance.
Show original supplier description
The Rein 11531289377 is a direct replacement heater hose for select BMW E30 models equipped with M20 engines. This hose serves as the engine return line, facilitating the flow of hot engine coolant from the thermostat housing to the heater valve. Its function is crucial for the proper operation of the vehicle's heating system. It is molded to match the OE heater hose shape for straightforward installation and correct appearance. This part is specifically designed for the BMW E30 chassis with M20 2.5L and 2.7L engines, including models such as the 325e, 325es, 325i, 325i Convertible, and 325ix. Always verify fitment with your vehicle's specific configuration.

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

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Specifications

BrandRein
Part Number11531289377
CategoryHeating and Cooling

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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.

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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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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