Bilstein 35-348108 is a B6 Performance front strut for the 2005-2012 Porsche 911 (997) built without Porsche Active Suspension Management. B6 sits a step above the B4 OE line: it keeps the factory ride height and works with the standard spring, but the monotube valving is re-tuned for firmer, better-controlled damping. The result is tighter body control and more stable turn-in without the compromise of a lowering spring or a coilover conversion.
The monotube layout separates gas and oil so the damping oil is held under pressure and resists aeration under sustained hard use - the reason Bilstein monotubes hold their damping when a twin-tube fades. This unit measures 429 mm collapsed and 588 mm extended, with a base cup at the bottom and a stem at the top, and ships with a black bellows dust boot. It has a fixed spring seat but no coil spring: the factory spring is retained. It is sold individually and Bilstein specifies two per vehicle, so order two to do the front axle. It cross-references Porsche 997 343 041 11/12/13/14/17 and 997 343 042 00.
- B6 Performance line - firmer application-specific valving at stock ride height
- Monotube gas-pressure design, yellow painted body, made in Germany
- Fixed spring seat, but no coil spring supplied - designed to run the OE factory spring
- Black bellows dust boot included
- Collapsed length 429 mm (16.88 in.), extended length 588 mm (23.15 in.)
- Lower mount base cup, upper mount stem
- Sold individually; Bilstein specifies two per vehicle for the front axle
- For 997 models without PASM; cross-references Porsche 997 343 041 11/12/13/14/17 and 997 343 042 00
- Bilstein Limited Lifetime Warranty
Specifications
| Line/Series | B6 Performance |
| Type | Suspension strut assembly (damper with fixed spring seat) |
| Position | Front |
| Damper Design | Monotube, gas pressure |
| Adjustable | No |
| Spring Included | No - uses the OE factory spring |
| Spring Seat Included | Yes, fixed |
| Boot Included | Yes, black bellows |
| Sold As | Sold individually (2 per vehicle) |
| Collapsed Length | 429 mm (16.88 in.) |
| Extended Length | 588 mm (23.15 in.) |
| Lower Mount | Base cup |
| Upper Mount | Stem |
| Finish | Yellow paint |
| Country of Origin | Germany |
| Warranty | Bilstein Limited Lifetime Warranty |
| Part Number | 35-348108 |
Documents: Installation Instructions (PDF) | Material Safety Data Sheet (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005-2012 | Porsche | 911 | Carrera |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
