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REIN AUTOMOTIVE Water Hose Assembly - CHH0147R

REIN AUTOMOTIVE Heater Hose (Water Hose Assembly)

REIN AUTOMOTIVE
Availability:
5+ in stock, ready to be shipped

Ships same or next business day

SKU 1J0121156AT
$109.43 - $109.43
$109.43
$109.43 - $109.43
$109.43
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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REIN AUTOMOTIVE

Water Hose Assembly

This product also goes by these part numbers: 1J0121156AT

This part also goes by the following cross reference.

Cross Reference Part Number: 1J0121156AT

Fits These Vehicles 9 applications
Audi
Make Model Engine Years
Audi TT 2000–2006
Audi TT Quattro 2000–2003
Audi TT Quattro 1.8L L4 2004–2006
Volkswagen
Make Model Engine Years
Volkswagen Golf 1.8L L4 2000–2001
Volkswagen Golf 2001–2006
Volkswagen Jetta 1.8L L4 2000–2005
Volkswagen Jetta 2001–2001
Volkswagen Jetta 2003–2003
Volkswagen Jetta 2005–2005

Fitment data last updated: 2026-07-18

Fits 9 vehicle applications Check vehicle fitment before ordering View fitment

About this Coolant Hose

The REIN AUTOMOTIVE 1J0121156AT coolant hose carries coolant between the engine, radiator, heater core or expansion tank. Hoses age from heat and pressure, and a single failed hose can empty the cooling system and overheat the engine within minutes.

Frequently asked questions

What are the signs of a failing coolant hose?

Coolant drips or dried coolant residue, a sweet smell, a hose that feels soft, swollen or cracked, a low-coolant warning, or rising engine temperature. Squeeze hoses when the engine is cold: a healthy hose feels firm but flexible.

What should I replace along with the hose?

Replace any clamps, O-rings or seals at the connections. Many European cars use plastic quick-connect fittings that become brittle with age, so inspect neighbouring hoses and fittings while the system is drained.

What coolant should I use?

Use the coolant type your car's manufacturer specifies, mixed to the correct ratio. Mixing incompatible coolants can cause deposits and reduce protection.

Can I replace a coolant hose myself?

Usually, yes. Let the engine cool completely before opening the system, catch and dispose of old coolant properly, and bleed the air out of the system afterwards following your car's procedure; trapped air can cause overheating.

How do I make sure this coolant hose fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

Euromotiv is an independent retailer of OEM, Genuine, and aftermarket automotive parts. We are not affiliated with, endorsed by, or authorized by Audi AG, Volkswagen AG, BMW AG, Mercedes-Benz Group AG, Dr. Ing. h.c. F. Porsche AG, MINI, or any other vehicle manufacturer. All trademarks, logos, and brand names are the property of their respective owners and are used solely for identification and compatibility purposes.