1985-93 Ford Mustang Serpentine Drive Belt w/o A/C - 85.23" - Fox Body - 5.0

Mustang Serpentine Drive Belt w/o A/C - 85.23" (85-93) 5.0

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Mustang Serpentine Drive Belt w/o A/C  - 85.23" (85-93) 5.0

Replace the shredded serpentine belt on your 1985-1993 Mustang 5.0 with this high quality replacement!

Item #JK6854

Everyday Low Price: $29.99

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  • Great For A/C Delete Cars
  • Less Slippage
  • Longer Life Than Conventional V-Belts
  • Runs Cooler


  • 85.23" Length
  • Better Belt-to-Pulley Contact
  • Rubber Impregnated Fabric Backing Maximizes Load Carrying Capability and Minimizes Noise

What's in the Box

  • (1) Serpentine Belt

Product Description

Mustang Serpentine Belt
This is the the revolutionary multi-ribbed belt first developed by Dayco for the 1979 Ford Mustang. Designed for power transmission on multiple-accessory Mustang serpentine drives. The multiple-rib design provides better belt-to-pulley contact for less slippage, so it lasts longer than conventional V-belts. “Multiple ribs” also eliminates the need for “matching”, and allows “controlled slippage” in shock overload situations, such as when the AC compressor kicks in.

High Quality Construction
Today, as then, this belt sets the industry standard. The transverse groove design runs cooler (up to 50°F), and dramatically reduces rib cracking, thereby increasing the life of the belt by at least 40%. The grooved design provides flexural stress relief, for increased flexibility in both normal and backside bending. The grooves also render the belt less susceptible to environmental factors such as dust and splash-induced slip.

Dayco’s superior manufacturing technology uses a rubber-impregnated fabric backing that maximizes load-carrying capability and minimizes the noise that is often associated with the competition’s rubber-backed belts. Torque-carrying capacity equals or betters conventional multi-rib belts. The cord is saturated with a specially formulated treatment that insures length and tension stability for the life of the belt.

Dayco Drive Rite belts meet or exceed SAE J1459 and J1596 specifications.

Fitment Note
Intended for use on Mustangs running air conditioning deletes M8511A50 or LRS-8511A. Belt length 85.23"

-Fits 1985-1993 Mustang 5.0

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Product Videos

1979-95 Mustang How to Measure Serpentine Belt Length (5.0)

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

Product Reviews (2)

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3.5 stars
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1 of 2 REVIEWS
1 of 2 REVIEWS

4 Stars   Bypass ac compressor only
By on 2/29/2016
The belt does what it is supposed to, however, it only bypasses the ac compressor. I needed a 70.5" belt to bypass the ac and smog pump. This one is too long for what I needed.

Yes, I would recommend this item to a friend!

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3 Stars   It fit because i made it fit..
By on 6/10/2016
Bought from LMR because previous purchases have been spot on. In this case the product was marginal. If not for my trusty prybar/flathead screwdriver i would have had to send it back. Even with the idler pulley fully raised there wasn't enough slack to install the belt. After installation the belt was so tight the idler pulley was unnecessary. I hope it doesn't put too much pressure on my alternator.

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Vehicle Applications

Ford Mustang - 1985 (85) - 1986 (86) - 1987 (87) - 1988 (88) - 1989 (89) - 1990 (90) - 1991 (91) - 1992 (92) - 1993 (93)

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