Dayco 5120903 | Serpentine Belt

Part Number

5120903

Serpentine Belt

Fits: 03-04 International 9200i SBA, 04-07 Mack CL, 04-07 Peterbilt 378, 04-07 Peterbilt 379, 04 Peterbilt 387, 06 Country Coach Motorhome Affinity, 08 Country Coach Motorhome Affinity

Special Price $49.61 Regular Price $58.36

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In stock

Estimated Ship Date: 1 Business Day or Less

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Details

The Dayco® Poly Rib® Belt is designed for power transmission on heavy duty multiple-accessory drives. This Poly Rib belt is the latest version of the revolutionary multi-ribbed belt first developed by Dayco® for the 1979 Ford® Mustang®. The Dayco® Poly Rib® Belt is manufactured from an extreme temperature EPDM rubber and features a construction that uses a highly fiber loaded compound to maximize belt life and load carrying requirements while minimizing pulley misalignment noise. This belt offers excellent resistance to high under hood temperatures and ozone contamination. In addition, specially formulated treated cord insures length and tension stability on heavy duty diesel engine drives for the life of the belt. The Dayco® Poly Rib® Belt meets or exceeds SAE J1459 and SAE J2432 specifications.

BRAND: Dayco

FEATURES:

POLY RIB BELT, DAYCO

SPECIFICS:

381	12
Color	Black
Cross Section	K-Section
Effective Length	90.25
Effective Length	2292.35
Material	EPDM, Aramid Reinforced
Maximum Operating Temperature	100
Maximum Operating Temperature	212
Minimum Operating Temperature	-45
Minimum Operating Temperature	-42.7
Outside Circumference	90.88
Outside Circumference	2308.36
Rib Depth	Standard
Rib Profile	Straight Rib
Standards	SAE J1459, SAE J2432
Top Width	1.66

DOWNLOADS:

INTERCHANGE:

Navistar: 3565410-C1
Gates: K120903
NAPA: 25-120901
Oshkosh: 3823402
CARQUEST: 5120903HD
Navistar: 3829896C1
CARQUEST: K120901HD
Goodyear: 4120902
ACDelco: 12K903
Goodyear: 4120904
CARQUEST: K120901
Gates: K120903HD
Dynacraft: D84-1000-3122295
Dynacraft: D84-1000-1122295
Cummins: 3103836
Dynacraft: D1108-4216
NAPA: 25-120901HD
Dynacraft: D84-1000-6122295
ACDelco: 12K901
Cummins: 3682285
CARQUEST: K120903
Gates: K120901
Cummins: 3100189
NAPA: 25-120903
Gates: K120901HD
Cummins: 3682893
Dynacraft: D1108-5231

APPLICATIONS:

2003-2004 International 9200i SBA - Position: Fan, Alternator and Water Pump
2004-2007 Peterbilt 378 - Position: Fan and Alternator
2004-2004 Peterbilt 387 - Position: Fan and Alternator
2004-2007 Peterbilt 379 - Position: Fan and Alternator
2004-2007 Mack CL - Position: Fan and Alternator

Product Questions (4)

Customer Questions

Can a serpentine belt cause smoke?

Yes, a serpentine belt can cause smoke. A serpentine belt is an essential component of a vehicle's engine system. It drives various accessories such as the alternator, power steering pump, water pump, and air conditioning compressor. If the serpentine belt becomes worn, damaged, or misaligned, it can cause friction and generate smoke.

Why is my serpentine belt squealing?

The serpentine belt can squeal due to various reasons, including tension issues, worn-out belt, or a problem with the belt's pulleys.

Is my serpentine belt too tight?

If your serpentine belt is causing issues like excessive noise or accelerated wear on the pulleys, it may indicate that the belt is too tight.

Why did my serpentine belt come off?

Serpentine belts can come off due to factors such as belt wear, improper tension, misaligned pulleys, or a faulty tensioner.