Hoses & Lines for 2018 Audi A4 Quattro
No.
Part # / Description / Price
Price
10
Breather Tube 
Audi
Audi Description: 2017-2019, auto trans. 2017-20. 45 tsfi. Convertible, 2.0L, front, upper.
MSRP $76.67
$57.50
MSRP $76.67
$57.50
11
Vent Hose Audi
Audi Description: 2017-2019, auto trans. 2.0L, main hoses. 2017-20. 2.0L, rear, lower, 2016-18. Coupe, 2.0L, front, 2018-20.
MSRP $78.34
$58.75
MSRP $78.34
$58.75
15
Hose Assembly Audi
Audi Description: 45 tsfi. 2017-2019, auto trans. 2021-25, front left. 2017-20. Coupe, 2.0L, front, 2018-20. Convertible, 2.0L, front.
17
MSRP $2.30
$1.48
17
Water Inlet Pipe O-Ring Audi
Audi Description: Turbocharger Cooling. At Engine. 20 x 3mm. Engine code: dhha, dsna, lower. Engine code dhha, rear, lower. 2.0L, rear, upper, 2016-18, 20x3,0. 2.0L, code dhha, rear, 20x3.0. 2.0L, code cyfb, rear, 20x3.0. Sedan, 1.8L, lower.
MSRP $3.29
$2.12
MSRP $3.29
$2.12
17
Engine Coolant Pipe O-Ring Audi
Audi Description: 18 x 3mm. Engine code: dnvb. 2.0L, main. Engine code: dsfa.
MSRP $1.26
$0.81
MSRP $1.26
$0.81
18
Heat Deflector Audi
Audi Description: 2017-2019, auto trans. 2017-20. 45 tsfi. 2.0L, main. Coupe, 2.0L, front, 2018-20.
MSRP $44.78
$28.88
MSRP $44.78
$28.88
20
MSRP $3.98
$2.57
No.
Part # / Description / Price
Price
1
HVAC Heater Hose Audi
Audi Description: Outlet. Connector to Pipe. Incl.Connector. Coupe, 2.0L, rear, 2018-20.
MSRP $123.34
$88.80
MSRP $123.34
$88.80
1
Heater Hose Audi
Audi Description: Inlet. Connector to Heater Core. Incl.Connector. 2021-25, heater hose. 2.0L, rear, 2021-25. 2.0L, rear, 2018-20. Convertible, 2.0L, rear, 2018-2020. Coupe, 2.0L, rear, 2021-24.
MSRP $30.58
$19.72
MSRP $30.58
$19.72
1
HVAC Heater Hose Audi
Audi Description: Outlet. Valve To Connector. 2.0L, rear, 2018-20. Convertible, 2.0L, rear, 2018-2020.
MSRP $29.78
$19.21
MSRP $29.78
$19.21
1
Heater Hose Audi
Audi Description: Outlet. Valve To Heater. 2.0L, rear, 2018-20. Convertible, 2.0L, rear, 2018-2020.
MSRP $12.16
$7.84
MSRP $12.16
$7.84
4
Auxiliary Pump Bracket Audi
Audi Description: 40 tsfi. 2021-25, front left. 2.0L, rear, 2021-25. 2017-20. 2017-2019, manual trans. 2017-2019, auto trans. 45 tsfi. Coupe, 2.0L, front, 2021-24.
8
MSRP $96.68
$69.60
14
Water Pipe Audi
Audi Description: 2017-20. 2017-2019, manual trans. 2017-2019, auto trans. 2.0L, front, 2018-20. 2.0L, main. Convertible, 2.0L, front.
MSRP $153.33
$110.40
MSRP $153.33
$110.40
17
Water Inlet Pipe Audi
Audi Description: 2017-20. 2017-2019, manual trans. 2017-2019, auto trans. 45 tsfi. 2.0L, 2019-21, return. 2.0L, center, #2. Coupe, 2.0L, 2018-20.
MSRP $178.33
$126.26
MSRP $178.33
$126.26
No.
Part # / Description / Price
Price
6
MSRP $24.78
$15.98
8
Outer Duct Audi
Audi Positions: Right
Description: 2017-2019, auto trans, to 02/19/2018. 2017-20, to 02/19/2018.
MSRP $56.67
$42.50
MSRP $56.67
$42.50
8
Outer Duct Audi
Audi Positions: Right
Description: 2017-2019, auto trans, from 02/19/2018. 2017-20, from 02/19/2018.
MSRP $61.67
$46.25
MSRP $61.67
$46.25
8
Outer Duct Audi
Audi Positions: Left
Description: 2017-2019, auto trans, from 02/19/2018. 2017-20, from 02/19/2018.
MSRP $61.67
$46.25
MSRP $61.67
$46.25
9
Inner Duct Audi
Audi Positions: Right
Description: 2017-2019, auto trans. 2017-20. 3.0L. Inner, 2.0L.
MSRP $41.98
$27.08
MSRP $41.98
$27.08
9
Inner Duct Audi
Audi Positions: Left
Description: 2017-2019, auto trans. 2017-20. 3.0L. Inner, 2.0L.
MSRP $27.98
$18.05
MSRP $27.98
$18.05
10
Expansion Tank Audi
Audi Description: 2017-2019, auto trans. A4 allroad. 2017-20. To 01/14/19. 45 tsfi. A5. 01/14/19 - 06/18/20. 2021-25.
MSRP $201.67
$142.78
MSRP $201.67
$142.78
14
MSRP $59.98
$44.99
16
Radiator Coolant Hose O-Ring Audi
Audi Notes: PARTS: Part included with upper hose. Part cannot be reused/reinstalled.
MSRP $2.62
$1.69
MSRP $2.62
$1.69
17
Lower Hose Retainer Spring Audi
Audi Notes: PARTS: Part included with upper hose. Part cannot be reused/reinstalled.
MSRP $6.47
$4.17
MSRP $6.47
$4.17
18
Water Hose Assembly Clamp Audi
Audi Notes: PARTS: Part included with upper hose. Part cannot be reused/reinstalled.
MSRP $6.27
$4.05
MSRP $6.27
$4.05
20
Upper Hose Coupling Audi
Audi Notes: PARTS: Part included with upper hose. Part cannot be reused/reinstalled.
Description: 2017-2019, auto trans. 2017-20. 45 tsfi. Upper Radiator Coolant Hose. At Water Pump Housing. Incl.C-Clip and Seal. 2.0L, front, 2018-20, upper. Convertible, 2.0L, front, upper.
MSRP $22.78
$14.69
MSRP $22.78
$14.69
21
Breather Tube Audi
Audi Description: 40 tsfi. 2021-25, front upper, #3. 2017-2019, auto trans. 2017-20. 45 tsfi. Convertible, 2.0L, front, lower, from 06/26/2017.
MSRP $36.38
$23.47
MSRP $36.38
$23.47
22
Coupling Shaft Audi
Audi Description: 45 tsfi. 2017-2019, auto trans. 40 tsfi. 3.0L, 2020-25. 2021-25, front upper. 2.0L, front, 2018-20, from 06/26/2017. 3.0L, 2018-19. Convertible, 2.0L, front, from 06/26/2017.
MSRP $37.78
$24.37
MSRP $37.78
$24.37
27
Coolant Temp Sensor Audi
Audi Notes: PARTS: Part included with lower hose. Part cannot be reused/reinstalled.
MSRP $53.32
$39.99
MSRP $53.32
$39.99
28
Temp Sensor T-Connector Audi
Audi Notes: PARTS: Part included with lower hose. Part cannot be reused/reinstalled.
Description: 2017-2019, auto trans. 2017-20. 45 tsfi.
29
Engine Coolant Hose Audi
Audi Notes: PARTS: Part included with lower hose. Part cannot be reused/reinstalled.
Description: Auxiliary Water Pump. Engine Cooling. Inlet. 2017-2019, auto trans. 2017-20.
MSRP $51.58
$33.27
MSRP $51.58
$33.27
30
Water Hose Assembly Clamp Audi
Audi Notes: PARTS: Part included with lower hose. Part cannot be reused/reinstalled.
MSRP $8.87
$5.71
MSRP $8.87
$5.71
Related Parts
Part # / Description / Price
Price
HVAC Heater Control Valve Audi
Audi Description: 1.8 Liter. 1.8 Liter Supply. 2.0 Liter Engine Code CNTC. 2.0 Liter Gas Inlet. 2.0 Liter Heater Hoses TO 12/03/2018. 2.0 Liter Left Side. 2.0 Liter, Code CNTB Auxiliary. 2.0 Liter, Code CYFB Auxiliary. 2.0 Liter, Gas Engine Code CNTC. 2.0 Liter, Gas Engine ...
MSRP $221.65
$156.93
MSRP $221.65
$156.93
Radiator Coolant Hose Bracket Audi
Audi Description: Lower Radiator Coolant Hose. 2.0L, gas. 2013-2016.
MSRP $4.76
$3.07
MSRP $4.76
$3.07