Bilstein
B4 OE Replacement

Bilstein 19-278544 Suspension Shock Absorber - Rear

Brand Bilstein 19-278544
Position Rear
Boot Included No
Finish Black paint
Internal Design Twintube
Lower Mount Type Eye
Series B4 oe replacement
Title Bilstein shock absorbers
Upper Mount Type Stem
Product line B4 OE Replacement
Fits Subaru · 5 vehicles

OE replacement. Restores original ride quality while meeting or exceeding OE standards.

Twintube design. Helps deliver consistent damping for balanced handling and control.

Black paint finish. Adds a clean, corrosion-resistant look to the shock absorber.

Cross-references 20365 AJ02A, 20365 AJ02B and 20365 AJ06A for the same application. See all 4.

$85.95Free shipping
Out of stock
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Suspension Shock Absorbers are typically replaced in pairs, axle by axle.
Order total $85.95
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Bilstein B4 Rear Shock for Subaru Outback

The Bilstein B4 OE Replacement shock absorber, part number 19-278544, is built to restore original ride quality and handling on the rear of select Subaru Outback models. It is a direct-fit suspension shock absorber for drivers who want OE-style performance with Bilstein engineering.

Key Features

  • Bilstein B4 OE Replacement series for factory-style ride restoration
  • Twintube internal design for consistent damping response
  • Black paint finish
  • Upper stem mount and lower eye mount configuration
  • No boot included
  • Fits 2010-2014 Subaru Outback, rear

Product Details

Bilstein B4 OE Replacement dampers are engineered to meet or exceed OE standards while maintaining the original ride characteristics of the vehicle. This rear shock absorber, part number 19-278544, is a strong choice for Subaru Outback owners looking to replace worn suspension components without changing the vehicle’s factory feel. It is listed for 2010-2014 Subaru Outback rear applications and cross-references Monroe Shocks & Struts 172286 for the same application.

The B4 OE Replacement line focuses on restoring controlled damping, stable road manners, and predictable handling. For Subaru Outback rear suspension service, this Bilstein shock absorber supports a factory-correct replacement approach with Bilstein quality and OE-style fitment.

Common Issues It Can Address

  • Excessive rear bounce after bumps
  • Reduced stability over uneven pavement
  • Rear-end sagging feel from worn dampers
  • Harsh or inconsistent ride quality
  • Loss of controlled handling in the rear suspension

Installation Notes

Verify rear fitment before installation on 2010-2014 Subaru Outback models. Confirm the upper stem and lower eye mounting points match the original shock absorber, and inspect surrounding suspension hardware and bushings during replacement. Professional installation is recommended for proper torque and alignment of the rear suspension components.

Quality Assurance

Bilstein B4 OE Replacement dampers are engineered to meet or exceed OE standards and are backed by Bilstein’s established suspension manufacturing quality. Part number 19-278544 is intended for direct replacement use on the listed Subaru Outback rear application.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
2014SubaruOutback3.6R LimitedRearB4 OE Replacement
2013SubaruOutback3.6RRearB4 OE Replacement
2012SubaruOutback3.6RRearB4 OE Replacement
2011SubaruOutback3.6RRearB4 OE Replacement
2010SubaruOutback3.6RRearB4 OE Replacement
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
20365 AJ02A20365 AJ02B20365 AJ06A20365 AJ07A