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MPA ElectricalPart #: B3221
MPA Electrical B3221 Power Brake Booster
⚙️ 18 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$200.43Free 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
📦Reman Vac Pwr Brake Booster w/o Master Cyl
🚗Fitment: Subaru, Baja, Forester, Impreza, Legacy, and Outback
🔄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 Power Brake Booster options
MPA Electrical B3221 Power Brake Booster
| Brand | MPA Electrical |
| Part Number | B3221 |
| Position | Reman Vac Pwr Brake Booster w/o Master Cyl |
| Brake Service Grade | Standard replacement |
| Booster Type | Vacuum |
| Brake Pedal Rod Extension Included | No |
| Master Cylinder Included | No |
| Gasket Or Seal Included | No |
| Housing Material | Metal |
| Diaphragm Diameter | 247.9 |
| Diaphragm Diameter | 9.76 |
| Mounting Bracket Included | No |
| Front Seal Included | No |
| Master Cylinder Stud Thread Size (mm) | 8 x 1.25 |
| Mounting Stud Quantity | 2 |
| Product Condition | Remanufactured |
This part fits 18 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2008 | Subaru | Forester | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | |||
| 2007 | Subaru | Forester | Manual | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | ||
| 2007 | Subaru | Impreza | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | |||
| 2006 | Subaru | Baja | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | |||
| 2006 | Subaru | Forester | Manual | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | ||
| 2006 | Subaru | Impreza | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | |||
| 2005 | Subaru | Baja | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | |||
| 2005 | Subaru | Forester | Manual | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | ||
| 2005 | Subaru | Impreza | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | |||
| 2004 | Subaru | Baja | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | |||
| 2004 | Subaru | Forester | Manual | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | ||
| 2004 | Subaru | Impreza | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | |||
| 2004 | Subaru | Legacy | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | |||
| 2004 | Subaru | Outback | 2.5L | H4 | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | |
| 2003 | Subaru | Baja | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | |||
| 2003 | Subaru | Impreza | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | |||
| 2003 | Subaru | Legacy | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl | |||
| 2002 | Subaru | Impreza | N/A | Reman Vac Pwr Brake Booster w/o Master Cyl |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
26402AE34A26402AE47A26402FE13026402FE23026402FE34026402FE40026402FE42026402SA070
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.