Restore your BMW's designed ride control with the KYB Excel-G Suspension Strut 339270, a nitrogen gas-charged, twin-tube unit for the front left position. It's a direct-fit replacement for the 2006 BMW 325I and 330I, 2007-2013 328I and 335I, 2008-2013 128I and 135I, 2009-2011 335D, and 2011-2013 335IS — see the Buyer's Guide tab for engine-level fitment.
- OEA-engineered: Excel-G is built on the same KYB OE assembly lines using OE-quality components and is calibrated to help restore the vehicle's original, designed performance — not change it.
- Strong strut body: KYB's thick strut bodies and brackets minimize flex to help maintain correct alignment across driving conditions.
- Triple-lip fluid seal: Reduces the chance of oil and gas leaking out.
- Tuned damping: Vehicle-specific, hand-assembled in-house damping valves manage tire contact, steering response, and body movement, helping keep electronic safety systems performing as designed.
KYB recommends installing new strut mounts (part number SM5260) to reduce the chance of noise and vibration. Worn struts may show up as excess bounce, nose dive, poor body control, or uneven tire wear — if a failed front left strut is the cause, this replaces it.
Interchange: 31316784973 · G52142 · 71582
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What is the KYB Excel-G 339270?
It's a nitrogen gas-charged, twin-tube front left suspension strut, classified OEA (Original Equipment for the Aftermarket) and calibrated to help restore the vehicle's original designed performance.
Which vehicles does this strut fit?
It's a direct-fit for the 2006 BMW 325I/330I, 2007-2013 328I/335I, 2008-2013 128I/135I, 2009-2011 335D, and 2011-2013 335IS. See the Buyer's Guide tab for engine-level fitment.
What position does 339270 cover?
This strut is cataloged for the front left position. Struts are commonly replaced in pairs across the same axle for balanced ride control; this listing is for one unit.
Should I replace the strut mounts too?
KYB recommends installing new strut mounts (part number SM5260) to reduce the chance of noise and vibration when replacing the strut.
What are signs my strut may need replacing?
Excess bouncing, nose dive under braking, poor body control, or uneven tire wear can be signs. Diagnose the cause first; if a failed front left strut is the issue, this replaces it.
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