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Coolant Hose - Expansion Tank
Coolant Hose - Expansion Tank
Coolant Hose - Expansion Tank
Coolant Hose - Expansion Tank
Coolant Hose - Expansion Tank
Coolant Hose - Expansion Tank
Coolant Hose - Expansion Tank
Coolant Hose - Expansion Tank

REIN Coolant Hose - Expansion Tank

REIN AUTOMOTIVE
Availability:
Out of stock
SKU 11531711385
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$16.99 - $16.99
$16.99
$16.99 - $16.99
$16.99
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We show live inventory for in-stock items. Products may sell out due to high demand but are restocked regularly. Out-of-stock items can still be ordered and usually arrive within a few weeks.

This REIN coolant hose runs from the automatic transmission cooler to the bottom of the expansion tank, specifically designed for BMW models including the 540i (1999-2003 E39), 740i/740iL (1998-2001 E38), and 750iL (1998-2001 E38). It is a direct replacement for the original plastic hose and is made from durable materials to prevent cracking. When replacing this hose, it is recommended to inspect and replace plastic hose flanges as they are prone to failure.

Key Features & Benefits

  • Direct Replacement: Engineered to match the original hose routing and connections.
  • Handles Hot Fluid: Designed to withstand high-temperature coolant and transmission fluid.
  • Durable Construction: Made from reinforced rubber instead of brittle plastic for longer life.
  • Includes Sealing O-Rings: Often supplied with new o-rings for a leak-free seal.
  • Comprehensive Kit: Replaces both transmission cooler to expansion tank hose and often includes needed hardware.

Vehicle Fitment

Make Model Years Engine
BMW 540i 1999–2003 4.4V8
BMW 750iL 1998–2001 5.4V12
BMW 740iL 1998–2001 4.4V8
BMW 740i 1998–2001 4.4V8

Technical Specifications

Part Number 11531711385
Type Coolant Hose - Expansion Tank
Material Reinforced Rubber
Compatible Models BMW 540i, 740i, 740iL, 750iL

Installation Notes

Recommended to inspect and replace plastic hose flanges during installation for a complete cooling system overhaul.

About REIN

REIN Automotive is a trusted manufacturer of cooling system components for European vehicles, known for quality and reliability.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 4 applications
E39 5 Series
Make Model Engine Years
BMW 540i 4.4V8 1999–2003
E38 7 Series
Make Model Engine Years
BMW 750iL 5.4V12 1998–2001
BMW 740iL 4.4V8 1998–2001
BMW 740i 4.4V8 1998–2001

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