MiMi Auto Parts
TENSIONER UNIT V BELT, Arrowhead

TENSIONER UNIT V BELT

Brand: Arrowhead

SKU: 409811

Category: ENGINE, VEE BELT TENSIONER

R989,00 incl. 15% VAT

✓ In stock, ships nationwide via The Courier Guy

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Fitment: Fits selected BMW models. Confirm exact fitment before ordering.

Product Description

Ensure reliable engine performance in your BMW with the Arrowhead Tensioner Unit V Belt, designed for the engine vee belt tensioner system. This part maintains the correct tension on your V-belt, allowing your engine accessories such as the alternator, power steering pump, and air conditioning compressor to operate smoothly. The tensioner unit features a robust cast metal housing, an integrated spring mechanism, and a durable pulley wheel for consistent operation.

This tensioner unit is specifically compatible with a range of BMW models, including selected E81, E87, E46, E90, E60, E83, E84, and E85 series. It is suitable for engines with codes N42, N46, and N45. Always confirm your BMW’s model, year, engine size, and engine code before ordering to ensure correct fitment.

Common signs of a failing vee belt tensioner include squealing or chirping noises from the engine bay, visible belt misalignment, excessive vibration, and loss of power to engine-driven accessories. You may also notice the battery warning light, overheating, or difficulty steering if the tensioner is not functioning correctly.

If you experience any of these symptoms or notice visible wear on the tensioner or belt, it’s important to replace the tensioner unit promptly. Delaying replacement can lead to further damage to the belt and engine accessories, resulting in costly repairs.

Order your Arrowhead Tensioner Unit V Belt from MiMi Auto Parts for peace of mind and reliable nationwide delivery throughout South Africa. Our team is ready to assist with any queries and help you find the right part for your BMW. Always double-check your vehicle details before purchase.

Common signs this part may need replacement

  • Squealing or chirping noises from the engine bay
  • Visible belt misalignment or slippage
  • Loss of power to alternator, power steering, or air conditioning
  • Excessive vibration from the belt area
  • Battery warning light illuminated
  • Overheating due to failed water pump drive
  • Difficulty steering (if power steering is belt-driven)
  • Cracks or wear visible on the tensioner pulley
  • Sudden belt failure or detachment

Typical replacement guidance

Replace the vee belt tensioner unit if you notice abnormal noises, visible wear, or loss of tension in the belt system. Timely replacement ensures your engine accessories remain properly powered and prevents unexpected breakdowns.

Why timely replacement matters

A faulty vee belt tensioner can lead to belt slippage or breakage, causing loss of critical engine functions. Timely replacement helps avoid further engine damage and costly repairs.

Vehicle Compatibility

This part is confirmed to fit the following vehicles:

  • BMW 1 (E81) 2006 – 2011 116 i (N45 B16 A) – 85 kW / 115 HP
  • BMW 1 (E81) 2006 – 2011 118 i (N46 B20 B) – 100 kW / 136 HP
  • BMW 1 (E81) 2006 – 2011 120 i (N46 B20 B|N46 B20 C) – 115 kW / 156 HP
  • BMW 1 (E87) 2004 – 2011 116 i (N45 B16 A) – 85 kW / 115 HP
  • BMW 1 (E87) 2004 – 2011 118 i (N46 B20 B) – 100 kW / 136 HP
  • BMW 1 (E87) 2004 – 2011 118 i (N46 B20 B) – 95 kW / 129 HP
  • BMW 1 (E87) 2004 – 2011 120 i (N46 B20 A|N46 B20 B|N46 B20 BD|N46 B20 C|N46 B20 CC) – 115 kW / 156 HP
  • BMW 1 (E87) 2004 – 2011 120 i (N46 B20 B|N46 B20 BD|N46 B20 C|N46 B20 CC) – 110 kW / 150 HP
  • BMW 1 Convertible (E88) 2007 – 2013 120 i (N46 B20 B|N46 B20 C|N46 B20 E) – 115 kW / 156 HP
  • BMW 3 (E46) 1997 – 2005 318 i (N42 B20 A|N46 B20 A|N46 B20 C) – 105 kW / 143 HP
  • BMW 3 (E90) 2004 – 2011 320 i (N46 B20 B|N46 B20 BD|N46 B20 C|N46 B20 CB) – 110 kW / 150 HP
  • BMW 3 (E90) 2004 – 2011 320 i (N46 B20 B|N46 B20 C|N46 B20 CC|N46 B20 CD|N46 B20 E) – 115 kW / 156 HP
  • BMW 3 Compact (E46) 2001 – 2004 318 ti (N42 B20 A|N46 B20 A) – 105 kW / 143 HP
  • BMW 3 Convertible (E46) 2000 – 2007 318 Ci (N42 B20 A|N46 B20 A) – 105 kW / 143 HP
  • BMW 3 Convertible (E93) 2006 – 2013 320 i (N46 B20 B|N46 B20 E) – 115 kW / 156 HP
  • BMW 3 Coupe (E46) 1998 – 2006 318 Ci (N42 B20 A) – 105 kW / 143 HP
  • BMW 3 Coupe (E92) 2006 – 2013 320 i (N46 B20 B) – 115 kW / 156 HP
  • BMW 3 Touring (E46) 1999 – 2005 318 i (N42 B20 A|N46 B20 A|N46 B20 C) – 105 kW / 143 HP
  • BMW 3 Touring (E91) 2004 – 2012 320 i (N46 B20 B|N46 B20 C) – 110 kW / 150 HP
  • BMW X1 (E84) 2009 – 2015 sDrive 18 i (N46 B20 B|N46 B20 BD|N46 B20 C|N46 B20 CC|N46 B20 CD|N46 B20 E) – 110 kW / 150 HP
  • BMW Z4 Roadster (E85) 2002 – 2009 2.0 i (N46 B20 B) – 110 kW / 150 HP

Fitment support

Not sure if this part fits your vehicle? Contact MiMi Auto Parts with your vehicle make, model, year, and engine code before ordering and we will help confirm fitment.

Installation note

Some auto parts require correct tools, mechanical knowledge, and safety procedures. MiMi Auto Parts recommends professional inspection and installation where required.

Frequently Asked Questions

What should I check before ordering this part?

Check the part name, brand, part number, and vehicle compatibility information on this page. Confirm your vehicle make, model, year, engine size, and engine code before ordering. If you are unsure, contact MiMi Auto Parts before checkout.

Does this part fit my vehicle?

Please check the vehicle compatibility section on this page and confirm your vehicle make, model, year, engine size, and engine code before ordering. If you are unsure, contact MiMi Auto Parts before checkout.

Is the price VAT-inclusive?

Yes, product prices on MiMi Auto Parts are shown inclusive of VAT where applicable.

Do you deliver across South Africa?

Yes, MiMi Auto Parts delivers nationwide in South Africa. Delivery cost and estimated timing are calculated during checkout based on your location.

Is professional installation recommended?

Professional installation is recommended for safety-critical and technical parts such as airbag, clock spring, brakes, suspension, steering, clutch, cooling, engine, and electrical components. For guidance specific to this part, see the installation note on this page.

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