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Bilstein 35-115939 is a B8 Performance Plus front-left suspension strut for specified BMW 1-series model applications using sport or lowering springs. Its gas-pressure monotube, upside-down design is tuned for controlled performance with reduced suspension travel. Confirm the left-side position, spring package, and exact model before ordering.
Key Features
Fitment
Fits 2008-2013 BMW 128i and 135i plus 2013 BMW 135is applications identified for this left-side B8 strut. Platform codes are intentionally excluded from the Shopify model field. Confirm suspension package and paired components before installation.
Specifications
| Brand | Bilstein |
|---|---|
| Manufacturer Part Number | 35-115939 |
| Position | Front left |
| Design | Suspension strut |
| Damping System | Monotube gas pressure |
| Orientation | Upside down |
| Upper Mount Type | Pin |
| Paired Part | 35-115946 |
| UPC or GTIN | 651860638980 |
What's Included
One Bilstein B8 35-115939 front-left bare strut. Spring, upper mount, bump stop, dust boot, right-side strut, and installation hardware are not included unless expressly shown.
About Bilstein
Bilstein manufactures automotive performance and replacement components. Match the exact manufacturer part number and published application details before installation.
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Frequently Asked Questions
Is Bilstein 35-115939 for the left or right side?
It is the front-left strut. Bilstein identifies 35-115946 as the paired right-side part.
Is this a complete spring and strut assembly?
No. It is a bare performance strut unless additional components are expressly shown.
Can it be used with lowering springs?
Yes. The B8 series is designed for sport and lowering-spring applications, subject to the exact vehicle setup.
Installation Instructions
Installation should be completed by a qualified technician using the current manufacturer instructions. Verify the vehicle or system application, inspect every supplied component, follow the specified fastener and torque procedures, check clearances and routing, and confirm safe operation before driving.
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