Shock Mount Kits for BMW E46 M3 S54 (1999-2005)

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E30, E36, E46, Z3, Z4 ECS Ultimate Performance Rear Shock Mount Kit (...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:389255
Part#: 002542ECS01
In Stock
Sale - Save 3% $ 401.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 389.93 USD
Free Shipping
Sale - Save 3%
$ 401.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 389.93 USD
Free Shipping

Want a race-spec rear shock mount but with the comfort of a factory bushing? This ECS rear shock mount combines the precision and articulation of a spherical bearing with the isolation of urethane bushings. The stainless monoball bearing is lined with PTFE lubricant and suspended in 80A urethane and housed in a hard anodized 6061-T6 aluminum mount. The spherical bearing is a better design than most rear shock mounts because it allows the shock to move and tilt without side-loading the shock shaft (which leads to premature failure of the shock). Most Genuine BMW and aftermarket shock mounts are not designed for shock angles and the stress that track or performance driving will put on the shock shaft. The ECS shock mount is properly designed to handle these loads. The internal bearing is also replaceable - it will be years before you have to replace the entire mount. The ECS mount is fully encapsulated to prevent the common shock mount failure of the stock mount design.

ECS RSM features:

  • Maintenance free, PTFE lined, stainless steel monoball spherical bearing for full shaft articulation
  • 80A polyurethane isolation bushings for NVH control
  • Accommodates 10mm, 12mm, or 14mm damper shafts
  • Fully constrained shaft mount makes RSM blow out impossible
  • Hard anodized 6061-T6 construction
  • Fully rebuildable design

* - the RSM comes with the BMW standard 10mm shock shaft bushings. 12mm is used on some performance shocks and 14mm is used on some true motorsport rear shocks.

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3-series Strut/Shock Mount Kit - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:338743
Part#: E46M3MOUNTKIT
Back Ordered
$ 873.99

This product was last offered at the strikethrough price on
01-03-2026

Starting at $ 806.41 USD
Free Shipping
Starting at $ 806.41 USD
Free Shipping
One of the secrets of the M3's acclaimed handling is its suspension bushings and mounts. That's why you absolutely cannot overlook replacing the rubber mounts when installing new struts and shocks. Since these pieces are mostly rubber, they dry up and crack over time. Re-using them lead to problems with fitment or noise, and may have safety issues as well. These mounts and pads are the perfect complement to your new shocks to help restore your car's handling and performance.

This mount package contains all of the commonly replaced rubber mounts and pads for the front and rear shocks on a 2001-2006 E46 M3 (incl CSL model). These are the direct replacement pieces - there's no additional labor, time, or effort and special tools are not required.

The basic E46 M3 mount package includes:
  • Front strut mounts (also known as the guide support)
  • Front upper spring plate with captive bearing
  • Front strut reinforcement plates (to prevent cracking and deforming of the front strut towers)
  • Front and rear self-locking mounting nuts
  • Rear Lifetime Warranty 'Repair Shop' shock mounts
  • Rear shock mount reinforcements (to prevent cracking of shock towers)
  • Rear shock mount gaskets
    The spring pads, dust boots, and bump stops can be added from the menu below. Note that front bump stops and dust boots are generally not required if you're using Bilstein struts, Bilstein coil overs, H&R coil overs, or KW coil overs. Those struts come with their own front bump stops and boots and may include rear stops and boots as well.

    We offer three varieties of the rear shock mounts - OEM, Repair Shop, and HP alum-rubber. We recommend either the Repair Shop or HP mounts because the stock OEM design has a flaw that can lead to premature failure of the mounts. The Repair Shop and HP mounts use a different design that will last longer and the Repair Shop mounts also have a lifetime warranty!

    This item fits the following BMWs:
    2001-2006 E46 BMW M3 M3 CSL
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