Help settle the rear suspension and bring back composed, factory-style ride control with the Monroe OESpectrum Rear Suspension Shock Absorber 5998. This rear-position OESpectrum unit is designed to help restore a vehicle's original drivability and handling precision while filtering out road-induced noise, vibration and harshness. It's a direct-fit application for many vehicles, among them the 2001-2006 BMW 325Ci, 2001-2006 BMW 330Ci and 2001-2005 BMW 325i. See the "Vehicles it fits" section for the full engine-level list.
- Twin Technology Active Control System: delivers control under most driving conditions while isolating impact-related noise, vibration and harshness.
- Full displaced valving & larger bore: tuned to the vehicle and adjusts to road extremes, with a larger bore for more efficient damping and a smooth, consistent ride.
- PTFE-banded piston: provides consistent sealing between the piston and pressure tube for better control and added durability.
- Nitrogen gas-charge & OE all-weather fluid: helps maintain tire-to-road contact by reducing aeration and shock fade, with additives to assist in extreme temperatures.
A self-lubricating fluid seal retains gas and reduces friction against the piston rod. Backed by Monroe's Limited Lifetime Warranty and Feel the Difference Guarantee. Shocks are best replaced as a matched axle pair for balanced ride control.
Interchange: 33521091245 · 33521095913 · 33522282100 · 33526750781 · 33526750783 · 33526750784 · 33526757045 · 33526759100 · TS3430092B · 341347 · 341522 · 69863 · 343352 · BW099 · 210150 · NS5998 · 32120182 · 785998 · 259010
This part cross-references / interchanges with the following part numbers:
33521091245, 33521095913, 33522282100, 33526750781, 33526750783, 33526750784, 33526757045, 33526759100, TS3430092B, 341347, 341522, 69863, 343352, BW099, 210150, 5998, NS5998, 32120182, 785998, 259010
Frequently Asked Questions
Where does the Monroe 5998 shock absorber mount?
It's a rear-position OESpectrum shock absorber for the listed BMW applications. See the "Vehicles it fits" section to confirm fitment for your specific vehicle.
Which vehicles does the 5998 fit?
It fits many vehicles, among them the 2001-2006 BMW 325Ci, 2001-2006 BMW 330Ci and 2001-2005 BMW 325i. Check the "Vehicles it fits" section for the full list.
Should I replace both rear shocks at the same time?
Shocks are sold individually, but replacing them as a matched axle pair is recommended for balanced, even ride control. This listing is for one shock.
What is the PTFE-banded piston for?
The PTFE-banded piston provides consistent sealing between the piston and pressure tube, which is designed to give better control and added durability.
How does the nitrogen gas-charge help?
The nitrogen gas-charge helps maintain tire-to-road contact by reducing aeration and shock fade, which supports improved ride and handling on the listed vehicles.
