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![FleetRunner Micro-V Serpentine Belt for 2004-2007 Mack and Peterbilt Models [12-Rib, 90.873 in. Outside Circumference]](https://www.jegs.com/images/mini_750/400/465/465-k120903hd.jpg)
Vehicle Info NeededGATESPART NUMBER: 465-K120903HD
FleetRunner Micro-V Serpentine Belt for 2004-2007 Mack and Peterbilt Models [12-Rib, 90.873 in. Outside Circumference]
$16893
Ships on 10/16/2026
Lowest Price GuaranteeHeavy Duty Serpentine Belt for Trucks and Fleet Vehicles2004-2007 Mack and Peterbilt Models See Fitment Tab for All Applications 14.9L L6 Engine K Section 12 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 K120903HD 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: 12
- Outside Circumference: 90.873 in.
- Top Width: 1.647 in.
- Position: Fan and Alternator
- OE Rating: OE Improved
- Sold Individually
Vehicle Applications:
- 2004-2007 Mack CL 14.9L L6
- 2004-2007 Peterbilt 378 14.9L L6
- 2004-2007 Peterbilt 379 14.9L L6
- 2007 Peterbilt 357 14.9L L6
Part TypeSerpentine Belt
BrandGATES
Package Width0.93
Weight0.93 PG
Part CategoryReplacement Parts
Number Of Ribs12
Top Width (In)1.647
Top Width (Mm)42
Oe Comparison RatingOE Improved
PositionFan and Alternator
Outside Circumference (In)90.873
Part FitmentDirect Fit
SectionK
Outside Circumference (Mm)2308
Vendor Part NumberK120903HD
Package Qty1
Package TypeEA
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