KYB 5550000 rear shock absorber for the 2007-2013 BMW 328i and other vehicles is a monotube gas shock that damps suspension movement. This KYB shock absorber, also called a suspension shock absorber, adds up to 25% more damping performance over original equipment shocks.
- Gas-a-just monotube design that adjusts automatically and does not fade from aeration
- Two working chambers: an air-free hydraulic piston and valve area, and a high-pressure nitrogen gas area with a floating piston
- Ultra-smooth triple chrome plated piston rod to reduce seal wear
- Higher gas pressure for quick response and improved steering response
- Added damping for vehicles that work, tow, or run larger, heavier tires and wheels
- Helps keep electronic safety systems performing as designed
Quick facts
- Part: KYB 5550000 shock absorber
- Also called: suspension shock absorber
- Fits: 2007-2013 BMW 328i and other vehicles
- Position: Rear
- Condition: New
A worn rear shock can show up as a floaty or bouncy ride, rear-end squat under load, or fluid streaks on the shock body. With the engine off, look the body over for oil. Those signs can have other causes, so find the cause first; if this shock is it, this one replaces it. The 2007-2013 BMW 328i takes two, so order two and fit them together.
Fits
As a rear shock absorber, this part goes on the 2007-2013 BMW 328i, the 2007-2013 BMW 335i and the 2008-2013 BMW 128i, plus other vehicles. If your BMW is not named here, look up its year and model in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Rear
- Quantity per vehicle: 2
Build and materials
- Type: High-pressure monotube gas shock
- Piston rod: Triple chrome plated
- Condition: New
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this KYB rear shock absorber right for the 2007-2013 BMW 335i?
Yes. KYB 5550000 is a rear shock absorber for the 2007-2013 BMW 335i, and that car takes two.
Is this KYB gas shock absorber a monotube or a twin-tube design?
KYB 5550000 is a high-pressure monotube. It separates the gas and oil, with a nitrogen gas area and a floating piston, for fade-free operation and instant response.
What does the KYB Gas-a-just shock absorber add for towing or larger wheels?
This rear shock absorber has additional damping for vehicles that work, tow, or run larger, heavier tires and wheels.
Why does the 5550000 have a triple chrome plated piston rod?
Fluid leaking can be a cause of shock failure. The ultra-smooth triple chrome plated piston rod is there to reduce seal wear.
Are new strut mounts recommended with the KYB 5550000?
Yes. To reduce the chance of noise and vibration, new strut mounts SM5767 (lower) and SM5752 (upper) are recommended. They are separate parts, as is the SB113 strut boot.
