Bilstein 20-070878 Air Shock Absorber - Rear Right

Brand	Bilstein 20-070878
Position	Rear Right
Boot Included	No
Finish	Black paint
Internal Design	Monotube
Lower Mount Type	Stem
Series	B4 oe replacement (air)
Title	Bilstein shock absorbers
Upper Mount Type	Eye 10mm
Product line	B4 OE Replacement (Air)
Fits	Mercedes-Benz · 2 vehicles

OE replacement. Direct-connect fit restores the original feel with modification-free installation.

Monotube design. Delivers consistent damping in a durable shock absorber construction.

OE supplier pedigree. Built by Bilstein for air suspension systems.

$416.85Free shipping

In stock · usually ships same day before 1pm CST

Step 1 — Confirm fitment

Free return shipping if it doesn't fit when you check fitment here first.

Confirm position

Select your vehicle to confirm fitment

Verify this part fits before purchasing — free returns if it doesn't

Step 2 — Quantity

Air Shock Absorbers are typically replaced in pairs, axle by axle.

Free shipping to the continental U.S.

Free returns within 60 days if it doesn't fit when fitment is verified.

Not what you need? See all Air Shock Absorber options

Bilstein B4 OE Replacement (Air) for Mercedes-Benz E320

Restore original air suspension response with this Bilstein B4 OE Replacement (Air) rear right air shock absorber. Built for direct connection to the factory air suspension setup, it supports modification-free replacement on the 2004-2005 Mercedes-Benz E320 and helps return the vehicle to its original ride feel.

Direct-fit air shock absorber for the rear right position
Bilstein B4 OE Replacement (Air) series
Monotube internal design for consistent damping response
Black paint finish
Upper mount: Eye 10mm
Lower mount: Stem
Boot included: No

OE Replacement Air Suspension Design

The Bilstein B4 OE Replacement (Air) line is built for European vehicles that use factory air suspension components. This rear right shock absorber connects directly into the original vehicle connectors, making it a practical OE-style replacement for the Mercedes-Benz E320. Part number 20-070878 is engineered to match the original system layout and restore the damping characteristics expected from the factory setup.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Vehicle Fitment

Fits 2005 Mercedes-Benz E320, rear right.
Fits 2004 Mercedes-Benz E320, rear right, with air suspension.

Common Repair Uses

Rear suspension sag on air-equipped Mercedes-Benz E320 models
Uneven ride height at the rear right corner
Loss of damping control from a worn air shock absorber
Factory connector or fitment issues after suspension wear
Restoring OE ride quality after air suspension component failure

Installation Notes and Tips

Verify rear right placement and confirm air suspension equipment before installation. Part 20-070878 is designed to connect to the original vehicle connectors, so no modification should be required when installed on the listed applications. Inspect related air suspension components, mounting points, and seals during replacement to help ensure proper operation.

Quality Assurance

Bilstein supplies OE air suspension systems for many vehicles, and the B4 OE Replacement (Air) line is built to meet the standards expected for factory-style replacement on European applications such as the Mercedes-Benz E320.

This part fits 2 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Submodel	Body Type	Position	Notes
2005	Mercedes-Benz	E320	Base	Wagon	Rear Right	B4 OE Replacement (Air)
2004	Mercedes-Benz	E320	Base	Wagon	Rear Right	With Air Suspension; B4 OE Replacement (Air)
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