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OEM Audi Radiators

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Keeping Your Engine Cool With Reliable Radiators

A radiator plays a key role in regulating engine temperature and preventing overheating. Supporting parts such as the radiator hose and radiator cap help maintain coolant flow and pressure. Proper cooling is especially important for vehicles like the Audi Q3.

Why OEM Radiators Are Worth Choosing

OEM radiators are engineered for exact coolant capacity and heat dissipation. They fit correctly with factory mounting points and hoses. This helps prevent leaks and overheating.

Maintaining Your Audi's Radiator and Cooling System

Cooling system inspections help avoid costly engine damage.

1. Check Coolant Levels

Low coolant may signal a leak. Inspect the radiator cap and hoses for cracks. Addressing leaks early prevents overheating.

2. Inspect Radiator Hoses

Look for swelling or softness in the radiator hose. Damaged hoses reduce coolant flow. OEM hoses provide consistent pressure handling.

3. Examine Radiator Fins

Bent or clogged fins reduce cooling efficiency. Clean debris carefully. Replacement may be needed if damage is severe.

4. Replace the Radiator If Needed

Install a factory radiator for proper fit. OEM parts ensure correct performance, protecting sensitive and expensive engine parts in your Audi.

5. Test the Cooling System

Run the engine and monitor temperature readings. Confirm no leaks are present. Proper testing ensures reliable cooling.

Order OEM Radiators From Audi OEM Parts Online

Audi OEM Parts Online offers genuine cooling components. For guidance or availability, reach out to us today.

Radiator Cap

MSRP $39.59
$25.49
Part Number: 1J0-121-321-B
Audi Audi
Other Names: Reservoir Cap, Cover
Description: Location-Reservoir. Gas, main. Diesel, main. From Chassis/VIN 8D-T-308 001. From Chassis/VIN 8D-T-309 403.
Fits:
  • Audi:
    • A4,
    • A4 Quattro,
    • A6,
    • A6 Quattro,
    • Allroad Quattro,
    • Q7,
    • RS6,
    • S4,
    • S6,
    • TT,
    • TT Quattro

Radiator Cap

MSRP $315.82
$223.22
Part Number: 4S7-121-321
Audi Audi
Other Names: Cover
Description: Location-Reservoir.
Fits:
  • Audi:
    • R8

Radiator Cap

MSRP $34.38
$22.14
Part Number: 4D0-133-335
Audi Audi
Positions: Left Lower, Right Lower
Other Names: Lower Mount Cap, Radiator Coupling, Cap, Auxiliary Radiator Cap
Description: 4.0L, primary. Convertible, 3.0L, main. Gas, primary, 2013-14. 2.0L. Diesel. 3.0L, with plug-in hybrid.
Fits:
  • Audi:
    • A6 allroad,
    • A6 Quattro,
    • A7 Sportback,
    • A8 Quattro,
    • Q5,
    • Q5 PHEV,
    • Q5 Sportback,
    • Q7,
    • Q8,
    • RS Q8,
    • RS5,
    • RS5 Sportback,
    • S4,
    • S5,
    • S5 Sportback,
    • S6,
    • S7 Sportback,
    • S8,
    • SQ5,
    • SQ5 Sportback,
    • SQ7,
    • SQ8

Radiator Hose

MSRP $15.78
$10.16
Part Number: 8W0-145-923-P
Audi Audi
Positions: Upper
Other Names: Hose
Description: 2.9L, main, upper.
Fits:
  • Audi:
    • RS5,
    • RS5 Sportback
Backordered

Radiator Hose

MSRP $62.32
$46.66
Part Number: 5WA-122-101-AD
Audi Audi
Positions: Right, Inner
Other Names: Hoses, Hose
Description: Engine code: dsfa, right side, inner. S3. Outlet.
Fits:
  • Audi:
    • S3

Radiator Hose

MSRP $22.98
$14.80
Part Number: 8W0-145-922-G
Audi Audi
Positions: Lower
Other Names: Hose
Description: 2.9L, main, lower.
Fits:
  • Audi:
    • RS5,
    • RS5 Sportback
Backordered

Radiator Hose

MSRP $42.78
$27.55
Part Number: 5WA-122-051-AE
Audi Audi
Positions: Right, Outer
Other Names: Hoses, Hose
Description: Engine code: dsfa, right side, outer. S3. Inlet.
Fits:
  • Audi:
    • S3

Radiator Hose Bracket

MSRP $13.45
$8.67
Part Number: 5WA-121-093-D
Audi Audi
Positions: Right, Inner
Other Names: Bracket
Description: Engine code: dsfa, right side, inner.
Fits:
  • Audi:
    • S3

Radiator Coolant Hose

MSRP $75.32
$56.40
Part Number: 8V0-121-103
Audi Audi
Positions: Left
Other Names: Hose
Description: Left Radiator.
Fits:
  • Audi:
    • RS3
Backordered

Radiator Coolant Hose

MSRP $115.00
$82.66
Part Number: 8K0-121-051-C
Audi Audi
Positions: Lower, Lower Rear
Other Names: Lower Hose, Lower Rear Hose, Connector Hose, Water Hose
Description: 2.0L, gas. 2013-2016. Coupe, 2.0L. Primary Radiator. Engine Cooling. Adapter to Thermostat Housing.
Fits:
  • Audi:
    • A4,
    • A4 Quattro,
    • A5,
    • A5 Quattro,
    • allroad,
    • Q5

Radiator Coolant Hose

MSRP $47.58
$30.64
Part Number: 4K0-121-058-AJ
Audi Audi
Positions: Left
Other Names: Hose
Description: Auxiliary Radiator. Valve to Pipe. Transmission cooler.
Fits:
  • Audi:
    • RS6 Avant,
    • RS7 Sportback

Radiator Coolant Hose

MSRP $75.32
$56.40
Part Number: 4H0-121-057-J
Audi Audi
Other Names: Hose
Description: Supercharger Cooling Radiator. Location-Wheel Arch. Auxiliary Radiator To Pipe.
Fits:
  • Audi:
    • A8 Quattro
Backordered

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