Current BMW:

(E83) X3 2004-2010 Clear BMW chassis

BMW X3 Belts

Your BMW's drive belts are wear items, and will degrade and crack over time. Don't wait until you have a belt failure... don't get stranded! Replacing your BMW's belts, such as the alternator belt, power steering belt, air conditioning AC belt, or serpentine belt is a low cost insurance policy to preventing a break down -- or worse, engine damage. We recommend checking your belts every 10,000 miles. If your belts have excessive cracks, dry rot, missing teeth and/or grooves, are cause noise, it's time for new ones.

While also inspecting your serpentine belts, also check for wear or resistance in the pulleys. The tensioner pulley and deflection pulley are the primary sources for belt squealing. The rubber-isolated pulleys can also break apart, leading to total belt failure. We sell the tensioner and deflection pulleys for the M50 engine family used in the E34, E36, E39, E46, X5, Z3, and Z4.

Available for the following BMWs: (click icon to change BMW)

AC Belt Tensioner with Pulley - E46 E39 E60 X3 X5 with M54 engine (more info)
AC Belt Tensioner with pulley fits 2003+ BMW's with the M54 or M56 engine. These belt tensioner units are known to fail, and include the tensioner pulley (as shown).

This item fits the following BMWs:
2003-2005 E46 BMW 325i 325ci 325xi 330i 330ci 330xi
2003 E39 BMW 525i 530i
2004-2005 E60 BMW 525i 530i
2004-2006 E83 BMW X3 2.5i X3 3.0i
2003-2006 E53 BMW X5 3.0i
2003-2006 E85 BMW Z4 2.5i Z4 3.0i

Part #: 11287512758 (11-28-7-512-758)

Price: $69.95 (USD)

Belt - Air Conditioner - E46 E39 E53 E83 E85 - 2003+ (more info)
This belt drives the air conditioning compressor for the AC system. We recommend checking your belts every 10,000 miles. If your belts have excessive cracks, dry rot, missing teeth and/or grooves, are cause noise, it's time for new ones.

This item fits the following BMWs:
2003-2005 E46 BMW 325i 325ci 325xi 330i 330ci 30xi
2003 E39 BMW 525i 530i
2004-2006 E83 BMW X3 2.5i X3 3.0i
2003-2006 E53 BMW X5 3.0i
2003-2006 Z4 BMW Z4 2.5i Z4 3.0i

Part #: 11287512762 (11-28-7-512-762)

Regular Price: $8.95 (USD)
Sale Price: $8.06 (USD)

Belt - Serpentine Belt - E46 E39 E53 E63 E83 Z3 - M52tu M54 engine (more info)
This is the main drive belt / serpentine belt 6PK x 1538 that drives all of the engine auxillaries, such as the alternator, waterpump, and power steering pump. If your belt has excessive cracks, dry rot, missing teeth and/or grooves, or are causing noise, it's time for a new one. Alternate Part #11281706545.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1999-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i
2000-2006 E53 BMW X5 3.0i
2004-2006 E83 BMW X3 2.5i X3 3.0i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i

Also for use on Underdrive Pulley Kit.
2001-2006 E46 BMW M3 coupe & convertible
2001-2002 Z3 Z3 M Roadster / Z3 M Coupe (S54 engine)

Part #: 11281437475 (11-28-1-437-475)

Regular Price: $19.44 (USD)
Sale Price: $17.50 (USD)

Belt - Serpentine Belt - E90 E82 E60 E70 E83 (more info)
This serpentine belt drives the Air conditioning, Alternator, and power steering system for BMW's with the N51/N52 engine. We recommend replacing the AC / Alternator / Power Steering belt every 80,000 miles.

This item fits the following BMWs:
2008+ E82 BMW 128i
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2012 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2012 E93 BMW 328i - Convertible
2006-2010 E60 BMW 525i 525xi 530i 530xi 528i 528xi 528i xDrive
2006-2010 E83 BMW X3 3.0i X3 3.0si
2007+ E70 BMW X5 3.0si X5 xDrive30i

Part #: 11287628650 (11-28-7-628-650)

Regular Price: $39.95 (USD)
Sale Price: $35.96 (USD)

Belt Tensioner - E9X E82 E60 E83 E85 E70 with N52 engine (more info)
This is the mechanical tensioner for the serpentine belts on BMW's with the N52 engine. This tensioner keeps the belt for the alternator, power steering and Air Conditioning taught to provide maximum performance of each system. Kit includes 11287530314 tensioner and 11287530315 aluminum bolt.

This item fits the following BMWs:
2008+ E82 BMW 128i
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2012 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2012 E93 BMW 328i - Convertible
2006-2010 E60 BMW 525i 525xi 530i 530xi 528i 528xi 528i xDrive
2006-2010 E83 BMW X3 3.0i X3 3.0si
2007+ E70 BMW X5 3.0si X5 xDrive30i
2006-2008 E85 BMW Z4 3.0i Z4 3.0si
2009+ Z4 BMW Z4 sDrive30i

Part #: 11287530314K

Price: $65.90 (USD)

Mechanical Belt Tensioner with Pulley for Water Pump / Alternator (more info)
This tensioner is for either the Water Pump or Alternator on cars with the mechanical belt tensioner system. Please check to ensure your car does not have the hydraulic tensioner.

This tensioner comes with the pulley assembly.

Only for cars with Mechanical belt tensioner systems.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1991-1995 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
1997-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 Z4 BMW Z4 2.5i Z4 3.0i

Part #: 11281427252 (11-28-1-427-252)

Price: $54.95 (USD)