Connects the lower radiator port to the thermostat housing
From VIN 8D -X-003501, split is in the 1999 model year
Audi A4 Engine Cooling Parts
- Coolant
- Coolant Flanges
- Expansion Tank
- Fan
- Freeze Plug
- Heater Core
- Hoses
- Lines
- Oil Cooler
- Performance
- Radiator
- Refresh Kit
- Temperature Sensor
- Thermostat
- Tools
- Water Pump
- Clearance
Seals the connection between the oil cooler and the engine
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This product was last offered at the strikethrough price on
05-07-2026
Connects the coolant pipe to the throttle body
Engine code ATQ
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
10-26-2026
Runs from oil cooler to water pipe
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Replacement 4 pin relay
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Used for fan control
This product was last offered at the strikethrough price on
05-07-2026
Connects oil cooler to hard coolant pipe
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This product was last offered at the strikethrough price on
10-21-2026
Connects the rear coolant flange to the hard water pipe
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Connects the turbocharger to the hard water pipe
This product was last offered at the strikethrough price on
05-07-2026
Install a new o-ring for a proper seal. 36x3.15
Seals the coolant flange to the cylinder head
This product was last offered at the strikethrough price on
05-07-2026
Secures the radiator to the core support
Seals the oil filter adapter to the engine block
Engine code AWM
Keep proper pressure in your coolant system
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For use with late model expansion tank, requires minor modification of coolant system to work
Updated <font color='green'>Green</font> sensor with square connector. Please check existing sensor color
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Up to VIN 8D-X-500000, split is in the 1999 model year
Secures the heater core ports onto the bulkhead
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
08-31-2026
Located at the rear of cylinder head, includes o-rings
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Bushing located below the lower radiator mounting bracket
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