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  3. MAC AUTO 137611

MAC AUTO PARTS 137611 Serpentine Belt Tensioners SK89163 3.0L 2.5L

fits model: 128i, 323i. make: Bmw. year: 2006–2011.

137611 Mac Auto Parts Serpentine Belt And Tensioners For Bmw 128i 3.0l 2008-2013 323i 2.5l 2006-2011

( Brand: Mac Auto Parts ), ( Manufacturer Part Number: 137611 ), ( Type: Serpentine Belt ), ( Universal Fitment: No ), ( Manufacturer Warranty: 2 Years ), ( Ipn: Sk89163 )

Review MAC AUTO PARTS Serpentine Belt And Tensioners Bmw 3.0l 2013 2.5l fits 128I 323I 2006–2011

Introducing the MAC Autopart 137611 Serpentine Belt Tensioner, specifically designed for BMW models including the 128i with a 3.0L engine from the years 2008 to 2013, as well as the 323i with a 2.5L engine from 2006 to 2011. This tensioner is an essential component that keeps the serpentine belt properly aligned and tensioned, ensuring the smooth operation of various engine accessories.

The MAC Autopart 137611 Serpentine Belt Tensioner is meticulously crafted using high-quality materials that meet or exceed OEM specifications. The tensioner's pulley features a robust design with a durable, ribbed surface that securely grips the serpentine belt, ensuring optimal belt tension and reliable performance.

This MAC tensioner also boasts an innovative, automatic adjustment system. This system utilizes a torsion bar mechanism that automatically adjusts belt tension as the belt wears out, providing consistent tension throughout the belt's lifespan. This not only prolongs the life of the serpentine belt but also reduces the risk of belt slippage and the resulting engine accessory malfunctions.

Installation of the MAC Autopart 137611 Serpentine Belt Tensioner is a straightforward process. It comes complete with all necessary hardware for a hassle-free installation. For added peace of mind, MAC offers a comprehensive warranty on this product, covering defects in materials and workmanship for an extended period.

In summary, the MAC Autopart 137611 Serpentine Belt Tensioner is an essential upgrade for BMW 128i and 323i models with 3.0L and 2.5L engines, respectively, from the specified years. With its robust design, automatic adjustment system, and easy installation process, this tensioner ensures reliable and consistent serpentine belt tension, ensuring optimal engine performance and longevity.

Buying a MAC auto Serpentine Belt Tensioner for BMW 128i (3.0L, 2008-2013) and 323i (2.5L, 2006-2011) model cars involves considering both advantages and disadvantages.

Advantages:

1. OEM Quality: MAC auto is an Original Equipment Manufacturer (OEM) supplier, meaning the tensioner is a factory original part. This ensures proper fit, function, and durability.

2. Reliability: Replacing the serpentine belt tensioner with a genuine OEM part can help prevent issues related to a faulty aftermarket part, such as belt slippage, tensioner failure, or engine damage.

3. Long-Term Savings: Although the cost of an OEM part may be higher upfront, it can save you money in the long run by avoiding potential repair costs related to using a lower-quality aftermarket part.

4. Warranty: MAC auto offers a limited warranty on their products, providing peace of mind and protection against manufacturing defects.

Disadvantages:

1. Cost: OEM parts, including MAC auto serpentine belt tensioners, tend to be more expensive than aftermarket alternatives.

2. Availability: Depending on the specific part and your location, it may take longer to source and receive an OEM part compared to an aftermarket option.

Conclusion:

When deciding whether to buy a MAC auto Serpentine Belt Tensioner for your BMW 128i or 323i, it's essential to weigh the advantages of OEM quality, reliability, long-term savings, and warranty against the disadvantages of higher cost and potential longer wait times. Ultimately, investing in a genuine OEM part like this can save you from potential repair issues and provide peace of mind, making it a worthwhile investment for your vehicle.

Recommendation:

If you're looking for a reliable and durable solution for your BMW's serpentine belt tensioner, I would recommend purchasing a MAC auto part. Although the upfront cost may be higher than aftermarket alternatives, the benefits of OEM quality, reliability, long-term savings, and warranty make it a worthwhile investment for your vehicle's overall performance and longevity.

Details:

1x Part# 5060785 Serpentine Belt. Part must be new, uninstalled, in original box. You in error or showed up defective. Merchandise MUST be in new condition.

1x Part# SK89399 89399 Serpentine Belt Tensioner.

specifications bepubrac:

  • for models: 128i, 323i
  • for makes: Bmw
  • for years: 2006-2011
  • brand: Mac Auto Parts
  • mpn: 137611
  • type: Serpentine Belt
  • universal fitment: No
  • manufacturer warranty: 2 Years
  • ipn: Sk89163

returns bepubrac:

  • paid by: Seller
  • time: 60 Days
  • policy: Returns Accepted

payments bepubrac:

  • wallet: Paypal
  • other
  • credit card: Mastercard

offer bepubrac:

  • availability: In Stock
  • sold: 0
  • quantity: 10
  • options: Ship-to-home
  • started: May 19, 2026

shipping bepubrac:

  • cost: $0.00
  • type: Fixed
  • class: Expedited
  • transit: 3-8 Days
  • service: Expedited

general bepubrac:

  • Car Truck Parts Accessories > Accessory Belts > Belts
  • condition: New

seller bepubrac:

  • rating: 99.5%
  • city: Port Chester, New York
  • # reviews: 196808
for models: 128i, 323i, for makes: bmw, for years: 2006-2011, type: serpentine belt, universal fitment: no, manufacturer warranty: 2 years,
category: auto parts > car truck parts accessories > accessory belts > belts, sku: 21267591136582602,
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