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TRWPart #: PML172

TRW PML172 Brake Master Cylinder
⚙️ 27 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$150.13Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi and Volkswagen, A4, A4 Quattro, A6, A6 Quattro, A8, A8 Quattro, Passat, S4, and S8
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Brake Master Cylinder options
TRW PML172 Brake Master Cylinder
| Brand | TRW |
| Part Number | PML172 |
| Reservoir Material | None |
| Dust Boot Included | Yes |
| Mounting Hardware Included | No |
| Gasket Or Seal Included | Yes |
| Mounting Hole Quantity | 2 |
| Master Cylinder Bore Diameter | 25.4 |
| Bleeder Screw Included | No |
| Piston Quantity | 2 |
| Brake Booster Included | No |
| Master Cylinder Cap Included | No |
| Master Cylinder Material | Aluminum |
| Push Rod Included | No |
| Reservoir Included | No |
| Bleeder Hoses Included | No |
| Sensor Included | No |
| Mounting Hole Diameter | 22 |
| Port Quantity | 2 |
| Mounting Bracket Included | No |
| Bore Type | Straight |
| Secondary Outlet Thread Size | M12 - 1.0 |
| Primary Outlet Thread Size | M12 - 1.0 |
| Brake Pressure Switch Required | No |
| Brake Pressure Switch(s) Included | No |
| Primary Bore Diameter | 25.4 |
This part fits 27 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2003 | Audi | A8 Quattro | L | 4.2L | V8 | N/A | Without electronic stability control | |
| 2003 | Audi | S8 | Base | N/A | Without electronic stability control | |||
| 2002 | Audi | A8 Quattro | Base | 4.2L | V8 | N/A | Without electronic stability control | |
| 2002 | Audi | S4 | Avant | N/A | Without electronic stability control | |||
| 2002 | Audi | S8 | Base | N/A | Without electronic stability control | |||
| 2001 | Audi | A4 | Base | 1.8L | L4 | N/A | ||
| 2001 | Audi | A4 Quattro | Avant | 1.8L | L4 | N/A | ||
| 2001 | Audi | A6 | Base | N/A | ||||
| 2001 | Audi | A6 Quattro | Base | 2.8L | V6 | N/A | ||
| 2001 | Audi | A8 Quattro | L | 4.2L | V8 | N/A | Without electronic stability control | |
| 2001 | Audi | S4 | Base | 2.7L | V6 | N/A | ||
| 2001 | Audi | S8 | Base | N/A | Without electronic stability control | |||
| 2001 | Volkswagen | Passat | GLX 4 Motion | N/A | Without electronic stability control | |||
| 2000 | Audi | A4 | Base | 2.8L | V6 | N/A | ||
| 2000 | Audi | A4 Quattro | Base | 1.8L | L4 | N/A | ||
| 2000 | Audi | A6 | Base | N/A | ||||
| 2000 | Audi | A6 Quattro | Base | 2.8L | V6 | N/A | ||
| 2000 | Audi | S4 | Base | 2.7L | V6 | N/A | ||
| 2000 | Volkswagen | Passat | GLS | 1.8L | L4 | N/A | ||
| 1999 | Audi | A4 Quattro | Base | GAS | N/A | From Chassis/VIN 8D-X-200 001 | ||
| 1999 | Audi | A8 | Base | N/A | ||||
| 1999 | Audi | A8 Quattro | Base | N/A | ||||
| 1999 | Volkswagen | Passat | GLS | 2.8L | V6 | N/A | From Chassis/VIN 3B-X-491 581 | |
| 1998 | Audi | A8 | Base | N/A | ||||
| 1998 | Audi | A8 Quattro | Base | N/A | ||||
| 1997 | Audi | A8 | Base | N/A | ||||
| 1997 | Audi | A8 Quattro | Base | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.