Rein BMW Transmission Parts for BMW 3 Series E46 (1999-2005)

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Looking for parts for your BMW automatic transmission or manual transmission? You'll find many of the parts available to service your BMW's transmission here. While internal transmission servicing and rebuilding should be done by professionals, there are a lot of things on the outside of the transmission that you can service or replace yourself. These include gearbox seals, o-rings, gaskets, automatic transmission filters, backup light switches, mounting bolts, flanges, collar nuts, screw plugs, Mechatronics, and more.

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OEM Rein Automatic Transmission Filter Kit - E46 E39 E85
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T#:2935
Part#: 24341423376KIT
Ships on Aug 24, 2026
Sale - Save 5% $ 43.99

This product was last offered at the strikethrough price on
06-29-2026

$ 41.79 USD
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$ 43.99

This product was last offered at the strikethrough price on
06-29-2026

$ 41.79 USD
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Automatic transmissions are reliable, shift smoothly, and can last without issue so long as they are properly maintained. Over time, the transmission fluid becomes thick and the filter becomes contaminated with small metal particles. This can cause excess wear, high transmission operating temperatures, and eventual failure. To prevent this we recommend changing your filter, fluid, and seals to ensure your transmission continues to operate flawlessly. We recommend filter and fluid changes every 50,000 miles. This filter fits A5S325Z automatic transmissions on BMW E46 323i 323ci 325i 325ci 328i 328ci 330i 330ci . E39 525i 528i 530i. E85 Z4 2.5i Z4 3.0i. This kit includes the transmission filter and gasket.

Kit Contents:

  • 1 x 24341423376 - transmission filter
  • 1 x 24101423380 - gasket for transmission filter

This item fits the following BMWs:
3/2000-2004 E46 BMW 323i 323ci 325i 325ci 330i 330ci
2003-2005 E46 BMW 325i with M56 engine
3/2001-2003 E39 BMW 525i 530i
2003-2006 E85 BMW Z4 2.5i Z3 3.0i

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Transmission Filter Kit
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T#:369365
Part#: A5S325Z
Ships on Aug 24, 2026
Sale - Save 5% $ 42.99

This product was last offered at the strikethrough price on
06-29-2026

$ 40.83 USD
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Sale - Save 5%
$ 42.99

This product was last offered at the strikethrough price on
06-29-2026

$ 40.83 USD
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Rein Automatic Transmission Oil Pan Gasket - E39, E46, Z4
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T#:12451
Part#: 24341423376
In Stock
Sale - Save 5% $ 12.99

This product was last offered at the strikethrough price on
06-29-2026

$ 12.34 USD
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$ 12.99

This product was last offered at the strikethrough price on
06-29-2026

$ 12.34 USD
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OIL FILTER:241030

Transmission Filter
For sedan models with A5S325Z transmission and production date up to 03/2002. For touri... For vehicles with A5S325Z transmission only, up to 03/2003 production date For vehicles with A5S325Z transmission only, from 03/2000 production date
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T#:350821
Part#: 24341423376
In Stock
$ 24.47

This product was last offered at the strikethrough price on
05-02-2026

$ 19.99 USD
Limited Qty Sale
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$ 24.47

This product was last offered at the strikethrough price on
05-02-2026

$ 19.99 USD
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Rein Transmission Input Shaft Seal - E31, E34, E39, E46, E52 ...
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T#:363449
Part#: 23127501328
Ships in 1 Business Day
Sale - Save 5% $ 16.99

This product was last offered at the strikethrough price on
06-29-2026

$ 16.14 USD
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Sale - Save 5%
$ 16.99

This product was last offered at the strikethrough price on
06-29-2026

$ 16.14 USD
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A common source of leaks with higher mileage, this seal should be replaced any time a leak is spotted to prevent much more catastrophic repairs.
Rein Magnetic Transmission Drain Plug
Fill and drain plug for vehicles with transmission code GS5X37BZ and production date fr... For vehicles with production date from 03/2003
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T#:53785537
Part#: HWU0117
Back Ordered
New Item
Sale - Save 5% $ 16.99

This product was last offered at the strikethrough price on
06-29-2026

$ 16.09 USD
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Sale - Save 5%
$ 16.99

This product was last offered at the strikethrough price on
06-29-2026

$ 16.09 USD
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Magnetic Rein Transmission Plug Features Aluminum Construction with OE Dimensions and Threading. Magnetic Tip for Upgrade over Stock. Lightweight and Durable Construction Designed to Interface Perfectly with Modern Alloy Gear Housings
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