SKU: 35-347835 | UPC: 651860941233
Bilstein B6 Performance Monotube Rear Strut Assembly 2005-2012 Porsche Boxster (w/o PASM)
The Bilstein 35-347835 B6 Performance Monotube Rear Strut Assembly is the best upgrade strut for 2005-2012 Porsche Boxster (w/o PASM) owners seeking improved handling, reduced body roll, and a sportier ride without harshness. Featuring monotube gas-pressurized technology, digressive valving, and vehicle-specific tuning, this strut delivers precise damping, better road feel, and fade resistance – ideal for spirited street driving, canyon carving, or track days on the Boxster platform.
Key Features
- Monotube Design: Gas-pressurized for consistent damping, fade resistance, and superior heat dissipation
- Digressive Valving: Provides firm control at low speeds and progressive damping under hard cornering
- Fixed Spring Seat: Includes integrated spring perch for direct fit with stock or lowering springs
- Blue Bellows Boot: Protects piston rod from debris and extends service life
- Yellow Paint Finish: Iconic Bilstein look with corrosion-resistant coating
- Direct Replacement: Vehicle-specific fitment – bolts on with factory mounts (no modifications required)
Specifications
| Specification | Detail |
|---|---|
| Part Number | 35-347835 |
| Position | Rear |
| Strut Type | B6 Performance Monotube |
| Extended Length | 21.42 inches (544.0 mm) |
| Collapsed Length | 16.48 inches (418.5 mm) |
| Upper Mount | Stem |
| Lower Mount | Housing |
| Spring Seat | Fixed (Included) |
| Boot | Blue Bellows (Included) |
| Compatibility | 2005-2012 Porsche Boxster (w/o PASM) |
| Country of Origin | Germany |
| Warranty | Limited Lifetime (Bilstein) |
Product Notes
- Rear strut assembly – sold individually; order 35-347836 for left side if needed
- Designed for Boxster models without PASM (Porsche Active Suspension Management)
- Compatible with stock or lowering springs – excellent for street performance or mild track use
Installation Notes
- Estimated time: 2-4 hours per side, advanced difficulty, spring compressor and professional installation recommended
- Direct replacement – requires strut removal and spring compression; use new mounts/bearings for best results
- Full alignment essential after installation – torque to factory specs
This Part Fits
| Year | Make | Model | Notes |
|---|---|---|---|
| 2005-2012 | Porsche | Boxster | All Trims w/o PASM (Base, S, Spyder, Black Edition, RS 60 Spyder, etc.) |
| 2006-2012 | Porsche | Cayman | Base / S (w/o PASM – Verify Application) |
Why Choose Bilstein B6 Performance Struts?
- Monotube gas-pressurized design provides superior damping, fade resistance, and road feel over stock
- Digressive valving delivers sporty handling without harshness – perfect for street and occasional track use
- Limited lifetime warranty and German engineering ensure long-term reliability and performance
Frequently Asked Questions
- Q: Will this strut fit my 2009 Porsche Boxster S?
A: Yes, 35-347835 is confirmed to fit 2005-2012 Porsche Boxster models without PASM. - Q: Does it include a spring?
A: No – strut assembly with fixed spring seat; reuse existing spring or pair with lowering springs. - Q: Should I replace both rear struts?
A: Yes – recommended to replace left/right together for balanced handling and ride quality. - Q: Is alignment required after installation?
A: Yes – professional alignment essential to prevent uneven tire wear and maintain proper handling.
Shipping & Handling
- Method: UPS/FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Secure retail box
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