Hydraulic System for 2009 Audi A4
No.
Part # / Description / Price
Price
1
Brake Master Cylinder 
Audi
Audi Notes: PARTS: Order by application.
Description: Without hybrid. A4, S4. Q5. 2013-2016, ate. SQ5. Listed under Audi part number 8K0-611-021-A, this Brake Master Cylinder carries and controls hydraulic pressure in the brake circuit, where sealing integrity and consistent piston travel are what turn pedal effort into clamping force. Every genuine Audi part is validated against the same specification as the original equipment component. Use the fitment guide or contact our parts team to confirm the correct application.
MSRP $696.67
$528.77
MSRP $696.67
$528.77
1
Brake Master Cylinder Audi
Audi Description: A8, S8. A4, S4. Girling-trw. A5, S5. Listed under Audi part number 4H0-611-021, this Brake Master Cylinder carries and controls hydraulic pressure in the brake circuit, where sealing integrity and consistent piston travel are what turn pedal effort into clamping force. Ordering genuine avoids the fit and durability compromises that come with aftermarket substitutes. Fitment varies by model year, trim, and option content, so verify before ordering.
MSRP $725.01
$550.28
MSRP $725.01
$550.28
2
Master Cylinder Gasket Audi
Audi Description: Vendor:continental teves. Contiteves sedan. With adaptive cruise. Convertible, trw. With stability cntrl. 2013-2016 ate. Listed under Audi part number 1J0-611-243-B, this Master Cylinder Gasket creates the sealing interface between two components, and bec ...
MSRP $23.78
$16.23
MSRP $23.78
$16.23
2
Brake Master Cylinder O-Ring Audi
Audi Description: Girling-trw. Convertible, teves. From 03/19/2018. To 03/12/2018. From 07/02/2018. To 07/02/2018. To 11/26/2018. To 03/19/2018. This genuine Audi Brake Master Cylinder O-Ring, part number 8K0-611-243-B, creates the sealing interface between two components, ...
MSRP $7.50
$5.10
MSRP $7.50
$5.10
2
Power Brake Booster Check Valve Seal Audi
Audi Description: Listed under Audi part number 1S0-612-250-A, this Power Brake Booster Check Valve Seal creates the sealing interface between two components, and because a seal is the cheapest part in most assemblies but the most common source of leaks, using the correct specification is what keeps the repair permanent. Buying genuine keeps the vehicle's original fit, finish, and warranty coverage intact. Use the fitment guide or contact our parts team to confirm the correct application.
MSRP $23.78
$16.23
MSRP $23.78
$16.23
3
Brake Master Cylinder Reservoir Grommet Audi
Audi Notes: PARTS: Part included with master cylinder.
Description: 2013-2016, ate. Confiteves sedan. Convertible, teves. With adaptive cruise. Audi part number 357-611-817, the factory Brake Master Cylinder Reservoir Grommet, is a small but load bearing element of the assembly, and using the factory specification matters ...
MSRP $15.55
$10.58
MSRP $15.55
$10.58
4
Pin Audi
Audi Description: 2012-15. 2016-18, gas engine. 2013-2016 ate. 2013-2016, girling-trw. Convertible,. This genuine Audi Pin, part number 8K0-611-513, is a small but load bearing element of the assembly, and using the factory specification matters because thread pitch, coati ...
MSRP $8.71
$5.93
MSRP $8.71
$5.93
5
Brake Master Cylinder Reservoir Bolt Audi
Audi Description: This genuine Audi Brake Master Cylinder Reservoir Bolt, part number WHT-003-382-A, is a small but load bearing element of the assembly, and using the factory specification matters because thread pitch, coating, and clamp load are engineered for the joint rather than generic. Ordering genuine avoids the fit and durability compromises that come with aftermarket substitutes. Confirm fitment against your vehicle identification number before ordering.
MSRP $3.60
$2.45
MSRP $3.60
$2.45
6
Brake Master Cylinder Nut Audi
Audi Description: Without adaptive cruise. "ate". This genuine Audi Brake Master Cylinder Nut, part number WHT-000-001-T, is a small but load bearing element of the assembly, and using the factory specification matters because thread pitch, coating, and clamp load are engineered for the joint rather than generic. Ordering genuine avoids the fit and durability compromises that come with aftermarket substitutes. Check the applications list or supply your VIN to confirm this part fits your vehicle.
MSRP $9.74
$6.62
MSRP $9.74
$6.62
6
Brake Master Cylinder Nut Audi
Audi Description: This factory Audi Brake Master Cylinder Nut (8K0-698-135) is a small but load bearing element of the assembly, and using the factory specification matters because thread pitch, coating, and clamp load are engineered for the joint rather than generic. As a genuine Audi part it carries factory part numbering, original fitment data, and Audi parts warranty coverage. Check the applications list or supply your VIN to confirm this part fits your vehicle.
MSRP $13.30
$9.04
MSRP $13.30
$9.04
7
Brake Master Cylinder Reservoir Bolt Audi
Audi Description: Audi part number N-105-821-03, the factory Brake Master Cylinder Reservoir Bolt, is a small but load bearing element of the assembly, and using the factory specification matters because thread pitch, coating, and clamp load are engineered for the joint rather than generic. Buying genuine keeps the vehicle's original fit, finish, and warranty coverage intact. Check the applications list or supply your VIN to confirm this part fits your vehicle.
MSRP $1.32
$0.90
MSRP $1.32
$0.90
8
Brake Master Cylinder Reservoir Audi
Audi Description: The original equipment Audi Brake Master Cylinder Reservoir supplied under part number 8K0-611-301-A carries and controls hydraulic pressure in the brake circuit, where sealing integrity and consistent piston travel are what turn pedal effort into clamping force. Buying genuine keeps the vehicle's original fit, finish, and warranty coverage intact. Use the fitment guide or contact our parts team to confirm the correct application.
MSRP $251.65
$192.51
MSRP $251.65
$192.51
9
Brake Master Cylinder Reservoir Cap Audi
Audi Notes: PARTS: Part included with reservoir.
Description: 2012-15. 2013-2016, girling-trw. Convertible,. "ate". 2016-18 gas engine. Audi part number 8K0-611-357, the factory Brake Master Cylinder Reservoir Cap, carries and controls hydraulic pressure in the brake circuit, where sealing integrity and consistent p ...
MSRP $83.32
$66.95
MSRP $83.32
$66.95
11
Brake Fluid Level Switch Audi
Audi Description: 2013-2016, girling-trw. Coupe,. "ate". The original equipment Audi Brake Fluid Level Switch supplied under part number 8K0-973-702 carries and controls hydraulic pressure in the brake circuit, where sealing integrity and consistent piston travel are what turn pedal effort into clamping force. As a genuine Audi part it carries factory part numbering, original fitment data, and Audi parts warranty coverage. Confirm fitment against your vehicle identification number before ordering.
MSRP $10.25
$8.36
MSRP $10.25
$8.36
12
Brake Master Cylinder Reservoir Cap Audi
Audi Description: 2012-15. 2016-18, gas engine. Ate. 2013-2016, girling-trw. Convertible,. This genuine Audi Brake Master Cylinder Reservoir Cap, part number 4G0-611-367-A, carries and controls hydraulic pressure in the brake circuit, where sealing integrity and consistent piston travel are what turn pedal effort into clamping force. Ordering genuine avoids the fit and durability compromises that come with aftermarket substitutes. Check the applications list or supply your VIN to confirm this part fits your vehicle.
13
Power Brake Booster Audi
Audi Description: A4, S4. 2013-2016, ate. With hybrid. This genuine Audi Power Brake Booster, part number 8K0-612-107-C, carries and controls hydraulic pressure in the brake circuit, where sealing integrity and consistent piston travel are what turn pedal effort into clamping force. Buying genuine keeps the vehicle's original fit, finish, and warranty coverage intact. Confirm fitment against your vehicle identification number before ordering.
MSRP $523.48
$397.32
MSRP $523.48
$397.32
13
Power Brake Booster Audi
Audi Description: Girling-trw. A4, S4. A5, S5. Audi part number 8K0-612-107-B, the factory Power Brake Booster, carries and controls hydraulic pressure in the brake circuit, where sealing integrity and consistent piston travel are what turn pedal effort into clamping force. Buying genuine keeps the vehicle's original fit, finish, and warranty coverage intact. Fitment varies by model year, trim, and option content, so verify before ordering.
15
Power Brake Booster Vacuum Hose Grommet Audi
Audi Description: Girling-trw. "ate". Genuine Audi Power Brake Booster Vacuum Hose Grommet 8K0-611-743-B. This original equipment component is a small but load bearing element of the assembly, and using the factory specification matters because thread pitch, coating, and clamp load are engineered for the joint rather than generic. Buying genuine keeps the vehicle's original fit, finish, and warranty coverage intact. Fitment varies by model year, trim, and option content, so verify before ordering.
MSRP $42.18
$28.24
MSRP $42.18
$28.24
16
Power Brake Booster Vacuum Hose Clamp Audi
Audi Description: "girling-trw". 2013-2016, ate. 4.2L feed. large. This factory Audi Power Brake Booster Vacuum Hose Clamp (N-102-018-01) is a small but load bearing element of the assembly, and using the factory specification matters because thread pitch, coating, and clamp load are engineered for the joint rather than generic. Ordering genuine avoids the fit and durability compromises that come with aftermarket substitutes. Fitment varies by model year, trim, and option content, so verify before ordering.
MSRP $5.13
$3.48
MSRP $5.13
$3.48