HomeHVAC > Hoses and PipesVaico V20-1771 HVAC Heater Hose
Part #: V20-1771

Vaico V20-1771 HVAC Heater Hose

VAICO
6 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$38.82Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
VAICO
Fitment: BMW, 540i and M5
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of VAICO HVAC Heater Hose V20-1771

The VAICO HVAC Heater Hose V20-1771 is designed specifically for BMW 540i and M5 models. This cooling hose facilitates backflow from the engine to the heater valve, ensuring efficient heat transfer within the vehicle's HVAC system.

  • Compatible with BMW 540i and M5 models
  • OEM number 64 21 8 387 521
  • Designed for backflow cooling from engine to heater valve
  • Dimensions: 185 mm length, 35 mm width, 55 mm height
  • Lightweight construction at 0.091 kg

Detailed Product Description

The VAICO HVAC Heater Hose V20-1771 is a precision-engineered cooling hose that connects the engine to the heater valve, allowing coolant to flow back through the HVAC system. With a length of 185 mm, width of 35 mm, and height of 55 mm, this hose fits precisely within the designated space in BMW 540i and M5 models. The hose is designed for backflow, ensuring proper circulation of coolant to maintain optimal heating performance inside the vehicle cabin.

Manufactured under the VAICO brand line, this part meets strict quality standards for durability and fitment. VAICO specializes in replacement parts that match or exceed OEM specifications, making this heater hose a reliable component for maintaining your vehicle’s HVAC system.

Applications and Common Issues Addressed

  • Replacement of worn or cracked heater hoses in BMW 540i and M5
  • Resolving coolant leaks affecting heater performance
  • Preventing overheating issues related to faulty coolant circulation
  • Restoring proper backflow from engine to heater valve
  • Maintaining consistent cabin heating during cold weather

Installation Notes and Tips

  • Ensure the vehicle is cooled down before removing the old hose
  • Verify compatibility with BMW 540i and M5 models using OEM number 64 21 8 387 521
  • Inspect surrounding components for wear or damage during installation
  • Use appropriate clamps to secure the hose and prevent leaks
  • Check for proper coolant flow after installation

Quality Assurance and Warranty

The VAICO HVAC Heater Hose V20-1771 is manufactured to meet OEM standards, ensuring reliable performance and durability. VAICO parts undergo rigorous quality control to provide consistent fit and function. While specific warranty details may vary, VAICO products typically come with a limited warranty covering manufacturing defects.

BrandVaico
Part NumberV20-1771
PositionVAICO
Cooling Hosefrom engine to heater valve
Forward- /Backflowfor backflow
Height [mm]55
Length [mm]185
Packaging height [cm]5,5
Packaging width [cm]3,5
Weight [kg]0.091
Width [mm]35
for OE number64 21 8 387 521

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003BMW540i4.4LV8N/AGrade: Aftermarket; Heater to Engine; VAICO
2003BMWM55.0LV8N/AGrade: Aftermarket; Heater to Engine; VAICO
2002BMW540i4.4LV8N/AGrade: Aftermarket; Heater to Engine; VAICO
2002BMWM55.0LV8N/AGrade: Aftermarket; Heater to Engine; VAICO
2001BMW540i4.4LV8N/AGrade: Aftermarket; Heater to Engine; VAICO
2001BMWM55.0LV8N/AGrade: Aftermarket; Heater to Engine; VAICO

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

120092412264 21 8 387 52164 21 8 391 0138 387 5218 391 013CHH0232RCHH0232RCRPCHH0255R

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.