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The valve retainer is one of the most stressed and critical pieces in the cylinder head of the E36 323is/328i/M3, E46 323i/325i/328i/330i, E39 525i/528i/530i, E60 525i/530i, and X3/X5, and Z4. Some say it is the most critical. The spring retainer is the upper spring seat and keeps the spring in place around the valve. It's under tremendous pressure and sees a lot of fatigue. If you have the cylinder head open and the cams removed it would be very smart to replace the retainers at the same time.
Don't forget to replace the valve keepers above the retainer too!
This is a Genuine BMW M52, M52TU, M54, and S52 valve retainer with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.
BMW Fitments:
3 Series E36 (92-99) > 318i M44 E36 (92-99) > 318ic M44 E36 (92-99) > 318is M44 E36 (92-99) > 323ic E36 (92-99) > 323is E36 (92-99) > 328i E36 (92-99) > 328ic E36 (92-99) > 328is E36 (92-99) > M3 (96-99) 3 Series E46 (99-05) > 323Ci E46 (99-05) > 323i E46 (99-05) > 325Ci E46 (99-05) > 325i E46 (99-05) > 325xi E46 (99-05) > 328Ci E46 (99-05) > 328i E46 (99-05) > 330Ci E46 (99-05) > 330i E46 (99-05) > 330xi 5 Series E39 (97-03) > 525i E39 (97-03) > 528i 99-00 E39 (97-03) > 530i 5 Series E60 / E61 (04-10) > 525i M54 (2004-2005) E60 / E61 (04-10) > 525i N52 (2006-2007) E60 / E61 (04-10) > 530i M54 (2004-2005) E60 / E61 (04-10) > 530i N52 (2006-2007) X3 Series E83 X3 (04-10) > X3 2.5i M54 (2004-2005) E83 X3 (04-10) > X3 3.0i M54 (2004-2006) X5 Series E53 X5 (00-06) > X5 3.0i M54 Z Series E36/7 / E36/8 Z3 (96-02) > Z3 2.3 E36/7 / E36/8 Z3 (96-02) > Z3 2.5 E36/7 / E36/8 Z3 (96-02) > Z3 2.8 97-98 E36/7 / E36/8 Z3 (96-02) > Z3 2.8 99-00 E36/7 / E36/8 Z3 (96-02) > Z3 3.0 E36/7 / E36/8 Z3 (96-02) > Z3 M - S52 Z Series E85 / E86 Z4 (03-08) > Z4 2.5i M54 E85 / E86 Z4 (03-08) > Z4 3.0i M54
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$11.66
Valve Retainer Spring Plate, BMW - E36, E39, Z3, MZ3, M52, M54, M62, S52
Critical piece of the valve train should be replaced during head rebuilds or camshaft upgrades. Replaces BMW part #11341432453.
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