OE Quality
60-Day Returns

Bilstein 22-278531 Suspension Strut Assembly - Front Right
Bilstein B4 OE Replacement Front Right Strut
The Bilstein B4 OE Replacement strut assembly, part number 22-278531, is built to restore original ride quality and handling on the front right corner of your vehicle. It is a direct OE-style suspension strut for drivers who want factory-like performance with Bilstein engineering.
Compatible with 2010-2014 Subaru Outback front right applications, this Bilstein shock absorber assembly is a practical replacement when the original strut has worn out, leaked, or lost damping control.
Key Features
- Bilstein B4 OE Replacement series for factory-style ride restoration
- Part number 22-278531 for front right suspension service
- Twintube internal design for consistent damping response
- Black painted finish
- Stem upper mount and base cup lower mount
- Boot not included
Product Line Details
The Bilstein B4 OE Replacement line focuses on maintaining original vehicle ride characteristics while meeting or exceeding OE standards. For Subaru Outback owners, this means a replacement strut assembly that follows the factory suspension layout and supports the handling balance expected from the original setup.
Detailed Description
This suspension strut assembly is engineered for 2010-2014 Subaru Outback front right fitment and is cross-referenced to OE numbers 20310 AJ04A, 20310 AJ04B, and 20310 AJ10A for the same application. The 22-278531 strut uses a twintube design, black paint finish, stem upper mount, and base cup lower mount to match the OE replacement format used on this corner of the vehicle. Bilstein B4 OE Replacement dampers are built to restore original performance and handling without changing the vehicle’s intended ride character.
What It Helps Address
- Excessive bouncing or reduced damping control at the front right corner
- Uneven ride quality compared with the opposite side
- Noisy or worn suspension response from a fatigued strut assembly
- Loss of steering stability and road control from aging OE suspension parts
- Restoration of factory-style ride height and handling feel after strut replacement
Installation Notes and Tips
Verify front right placement before installation and compare the replacement unit to the original strut assembly for mount style and overall configuration. Inspect related suspension components such as mounts, springs, and hardware condition during service, since worn supporting parts can affect final ride quality. Professional installation and a post-repair alignment are recommended after strut replacement on a Subaru Outback.
Quality Assurance
Bilstein manufactures the B4 OE Replacement line to meet or exceed OE standards, with a focus on restoring original suspension behavior and maintaining consistent performance. Part number 22-278531 is built for direct replacement use on the specified Subaru Outback front right application.
| Brand | Bilstein |
| Part Number | 22-278531 |
| Position | B4 OE Replacement, Front Right |
| Boot Included | No |
| Finish | Black paint |
| Internal Design | Twintube |
| Lower Mount Type | Base cup |
| Series | B4 oe replacement |
| Title | Bilstein shock absorbers |
| Upper Mount Type | Stem |
This part fits 5 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2014 | Subaru | Outback | 3.6R Limited | Front Right | B4 OE Replacement |
| 2013 | Subaru | Outback | 3.6R | Front Right | B4 OE Replacement |
| 2012 | Subaru | Outback | 3.6R | Front Right | B4 OE Replacement |
| 2011 | Subaru | Outback | 3.6R | Front Right | B4 OE Replacement |
| 2010 | Subaru | Outback | 3.6R | Front Right | B4 OE Replacement |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.