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![FleetRunner Micro-V Serpentine Belt for 2004-2014 Mack MRU, Peterbilt 320, 387 [8-Rib, 90.873 in. Outside Circumference]](https://www.jegs.com/images/mini_750/400/465/465-k080903hd.jpg)
Vehicle Info NeededGATESPART NUMBER: 465-K080903HD
FleetRunner Micro-V Serpentine Belt for 2004-2014 Mack MRU, Peterbilt 320, 387 [8-Rib, 90.873 in. Outside Circumference]
$5828
Ships on Oct 13, 2026
Lowest Price GuaranteeHeavy Duty Serpentine Belt for Trucks and Fleet Vehicles2012-2014 Mack MRU 2004 Peterbilt 320 2004 Peterbilt 387 8.9L L6, 10.3L L6 and 15.2L L6 Engines K Section 8 Ribs 90.873 in. Outside Circumference Sold Individually
Gates FleetRunner belts are made for heavy duty trucks, buses and fleet vehicles, where long run times, high accessory loads and underhood heat put extra demand on the belt drive.
Gates K080903HD FleetRunner Micro-V Serpentine Belt Features:
- Built for Heavy Duty Truck, Bus and Fleet Service
- Handles High Accessory Loads and Underhood Heat
- EPDM Construction for Long Service Life
- Cross Section: K
- Rib Count: 8
- Outside Circumference: 90.873 in.
- Top Width: 1.087 in.
- OE Rating: OE Improved
- Sold Individually
Vehicle Applications:
- 2012 Mack MRU 8.9L L6
- 2014 Mack MRU 8.9L L6
- 2004 Peterbilt 320 10.3L L6
- 2004 Peterbilt 387 15.2L L6
Part TypeSerpentine Belt
BrandGATES
Package Height1.0
Package Width5.0
Package Length14.0
Weight0.66 PG
Part CategoryReplacement Parts
Number Of Ribs8
Top Width (In)1.087
Top Width (Mm)28
Oe Comparison RatingOE Improved
PositionVarious - Application Specific
Outside Circumference (In)90.873
Part FitmentDirect Fit
SectionK
Outside Circumference (Mm)2308
Vendor Part NumberK080903HD
Package Qty1
Package TypeEA
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