Mechanical Tensioner Assembly - E36, E34, E39, Z3 - URO (11281427252)

Quality mechanical tensioner replacement - complete assembly

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Price:
$33.24

The mechanical belt tensioner was the original tensioner design used on M50, M52, M52TU, and M54 engines until it was replaced by a hydraulic design. Some cars are still out there with the mechanical tensioner, also known as a cam-style tensioner, and were never updated. This is a direct replacement tensioner for those cars and includes the pulley.

The mechanical tensioner has a spring inside that maintains pressure on the belt. A loose belt will cause insufficient charging from the alternator, poor cooling performance from the water pump, and stiffer steering from lower power steering pump output. It might also lead to the belt slipping from the pulleys or premature belt wear.

This is an affordable aftermarket version, made by URO. While we always suggest using OEM parts when possible, we recognize the need for a low cost alternative. This aftermarket version does its job and for a fraction of the cost of a Genuine BMW part. If you are looking for a quality aftermarket mechanical tensioner to do the job, this will certainly work for your needs. (We also sell an OEM INA brand as well.) 

Want to upgrade your tensioner to a hydraulic type? 
We also sell a kit to update the mechanical to the latest hydraulic tensioner design. The hydraulic is quieter and seems to last longer than the mechanical. See related items below.

BMW Fitments:

3 Series
E36 (92-99) > 325i
E36 (92-99) > 325ic
E36 (92-99) > 325is
E36 (92-99) > 328i
E36 (92-99) > 328ic
E36 (92-99) > 328is
E36 (92-99) > M3 (1995)
E36 (92-99) > M3 (96-99)
3 Series
E46 (99-05) > 320i
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
E46 (99-05) > M3
5 Series
E34 (89-95) > 525i M50
5 Series
E39 (97-03) > 525i
E39 (97-03) > 528i
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 (2003-2005)
E83 X3 (04-10) > X3 3.0i M54 (2003-2006)
E83 X3 (04-10) > X3 3.0si N52 (2007-2010)
X5 Series
E53 X5 (00-06) > X5 3.0i M54
Z Series
E36/7 / E36/8 Z3 (96-02) > Z3 2.5
E36/7 / E36/8 Z3 (96-02) > Z3 2.8
E36/7 / E36/8 Z3 (96-02) > Z3 3.0
E36/7 / E36/8 Z3 (96-02) > Z3 M - S52
E36/7 / E36/8 Z3 (96-02) > Z3 M - S54
Z Series
E85 / E86 Z4 (03-08) > Z4 2.5i M54
E85 / E86 Z4 (03-08) > Z4 3.0i M54
E85 / E86 Z4 (03-08) > Z4 M
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