Shock Mount Kits for BMW 3 Series E46 (1999-2005)

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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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Packaged by Turner - Corporate Logo
T#:338747
Part#: E46MOUNTKIT
Back Ordered
Sale - Save 5% $ 377.99

This product was last offered at the strikethrough price on
06-25-2026

Starting at $ 357.85 USD
Free Shipping
Sale - Save 5%
$ 377.99

This product was last offered at the strikethrough price on
06-25-2026

Starting at $ 357.85 USD
Free Shipping
This mount package contains all of the commonly replaced rubber mounts and pads for the front and rear shocks on a 1999-2005 E46 3-series (not for M3 or xi AWD). While you're installing new front struts and rear shocks these are easily installed - there's no additional labor and special tools are not required. 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.

Pick and choose from mounts below:
  • Front strut mounts (also known as the guide support)
  • 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:
    1999-2005 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci
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