Radiators, Coolers & Related Components for 2003 Audi A4
No.
Part # / Description / Price
Price
1
Genuine Audi Radiator 8E0121251AR OEM A6 S6 A4 
Audi
Audi Description: Genuine Audi OEM Radiator (Part #8E0-121-251-AR) is engineered specifically for the Audi A6 / S6 / A4 and ships direct from an authorized Audi dealer. Auto trans. A6/S6. Heavy Duty Cooling. 632 x 450 x 34mm. A4 Cabriolet. A6/S6. To Chassis/VIN 8H-8-013 500 ...
MSRP $958.31
$646.86
MSRP $958.31
$646.86
1
Genuine Audi Radiator 8E0121251AS OEM A4 Audi
Audi Description: Genuine Audi OEM Radiator (Part #8E0-121-251-AS) is engineered specifically for the Audi A4 and ships direct from an authorized Audi dealer. Heavy Duty Cooling. Cabriolet A4. Manual trans. Cooling system failures are catastrophic. Genuine Audi OEM cooling ...
MSRP $545.81
$372.52
MSRP $545.81
$372.52
2
Genuine Audi Radiator Mount Bolt 4B3121200 OEM A6 A4 C5 Audi
Audi Description: Genuine Audi Radiator Mount Bolt is an essential fastener that secures your vehicle's radiator firmly in place, preventing movement, vibration damage, and cooling system misalignment. Designed to fit Audi A4, S4, RS4, and A6 models across multiple engine c ...
MSRP $5.40
$3.10
MSRP $5.40
$3.10
3
Genuine Audi Radiator Upper Insulator 4B3121276A OEM A6 A4 C5 Audi
Audi Positions: Upper
Description: Genuine Audi Radiator Upper Insulator is a genuine OEM mounting component designed to secure and cushion the top of the radiator on Audi A4, S4, RS4, and A6 models across a range of engines including the 1.8L, 2.0L, 3.0L V6, 3.2L, and 4.2L V8. This insulat ...
MSRP $12.81
$7.36
MSRP $12.81
$7.36
4
Genuine Audi Radiator Lower Insulator Mounting 4B3121275 OEM A4 S4 RS4 Audi
Audi Positions: Lower
Description: Genuine Audi OEM Radiator Lower Insulator (Part #4B3-121-275) is engineered specifically for the Audi A4 / S4 / RS4 / A6 and ships direct from an authorized Audi dealer. 0L v6. 2L, supply. 2L A4/S4 main. 2L, main, RS4. This part is also commonly referred t ...
MSRP $12.81
$7.36
MSRP $12.81
$7.36
8
Genuine Audi Upper Seal 8E0121331 OEM A4 S4 RS4 Audi
Audi Positions: Upper
Description: Genuine Audi Upper Seal is a genuine Audi OEM component designed to maintain a precise, leak-free connection within the cooling system across multiple Audi A4, S4, and RS4 models. This part serves a range of engine configurations, including the 1.8L, 3.0L ...
MSRP $24.50
$14.06
MSRP $24.50
$14.06
9
Genuine Audi Reservoir Tank 8E0121403A OEM Audi
Audi Description: Genuine Audi Reservoir 8E0-121-403-A is a genuine OEM coolant tank designed for Audi vehicles equipped with 3.0L and 3.2L engines, ensuring your cooling system maintains the precise fluid levels required for peak engine performance. This component, also kn ...
MSRP $81.65
$56.22
MSRP $81.65
$56.22
10
Genuine Audi Cap Radiator Cap 8E0121321 OEM Audi
Audi Description: Genuine Audi Cap is a genuine OEM Audi component designed specifically for the A4, providing a precise, pressure-tested seal for the engine coolant reservoir. This engine coolant reservoir cap plays a critical role in maintaining the correct pressure withi ...
MSRP $55.78
$32.00
MSRP $55.78
$32.00
11
Genuine Audi Reservoir Cap Seal 1H0121687A OEM Authorized Dealer Audi
Audi Description: Genuine Audi OEM Reservoir Cap Seal (Part #1H0-121-687-A) is a factory-original component built to Audi's exact production specifications. This part is also commonly referred to as: Reservoir Cap Gasket, Engine Coolant Reservoir Cap Gasket, Reservoir Cap O ...
MSRP $6.77
$3.88
MSRP $6.77
$3.88
16
Genuine Audi Connector Hose Elbow 06C121445A OEM Audi
Audi Positions: Lower
Description: Genuine Audi Connector Hose 06C-121-445-A is a genuine OEM cooling system component engineered specifically for Audi vehicles equipped with the 3.0L V6 engine. This precision-formed elbow hose serves as the critical link between the coolant pipe and the th ...
MSRP $29.58
$16.97
MSRP $29.58
$16.97
16
Genuine Audi Lower Hose Water Hose 8E0121055E OEM A4 Audi
Audi Positions: Lower
Description: Genuine Audi OEM Lower Hose (Part #8E0-121-055-E) is engineered specifically for the Audi A4 and ships direct from an authorized Audi dealer. Radiator to Pipe. To5400000. Cabriolet A4. This part is also commonly referred to as: Water Hose. Genuine Audi OEM ...
MSRP $216.65
$147.86
MSRP $216.65
$147.86
19
Genuine Audi Water Hose Assembly Clamp Radiator Hose Clamp N90687001 OEM Audi
Audi Description: Genuine Audi Water Hose Assembly Clamp is a precision-engineered OEM fastening component designed to secure coolant and fluid hoses throughout your Audi's engine bay, HVAC system, and cooling circuit. Compatible with a wide range of Audi vehicles, this cla ...
MSRP $8.87
$5.08
MSRP $8.87
$5.08
19
Genuine Audi Water Hose Assembly Clamp N90687201 OEM Authorized Dealer Audi
Audi Description: This genuine Audi OEM Water Hose Assembly, Part #N-906-872-01, is a factory original component built to Audi's exact production specs. This part is also commonly referred to as: Lower Hose Clamp, Lower Rear Hose Clamp, Upper Hose Clamp, Connector Hose Clam ...
MSRP $6.27
$3.60
MSRP $6.27
$3.60
20
Genuine Audi Engine Coolant Overflow Hose 8E0121109A OEM Audi
Audi Description: Genuine Audi OEM Engine Coolant Overflow Hose (Part #8E0-121-109-A) is a factory-original component built to Audi's exact production specifications. This part is also commonly referred to as: Overflow Hose, Engine Coolant Reservoir Hose, Hose. Engine compo ...
23
Genuine Audi Coolant Temp Sensor Temp Sending Unit 059919501A OEM Audi
Audi Description: Genuine Audi Coolant Temp Sensor is a genuine OEM component designed to keep your Audi's engine management system running with factory-level precision. This Audi OEM Coolant Temp Sensor monitors coolant temperature in real time, sending accurate signals to ...
MSRP $57.77
$33.15
MSRP $57.77
$33.15
24
Genuine Audi Engine Coolant Temperature Sensor O-Ring N90316802 OEM Audi
Audi Description: Shop the genuine Audi OEM Engine Coolant Temperature Sensor O-Ring, Part #N-903-168-02, a factory original component built to Audi's exact production specs. This part is also commonly referred to as: Engine Coolant Pipe O-Ring, Pipe Seal, Thermo Switch O-R ...
MSRP $4.39
$2.52
MSRP $4.39
$2.52
25
Genuine Audi Temp Sensor Retainer Spring Coupling Retainer 032121142 OEM Audi
Audi Description: This genuine Audi OEM Temp Sensor Retainer Spring, Part #032-121-142, is a factory original component built to Audi's exact production specs. This part is also commonly referred to as: Coupling Retainer, Temp Sensor Retainer Spring, Retainer, Temp Sensor R ...
MSRP $2.73
$1.57
MSRP $2.73
$1.57