Performance Overview

The Kobra KBR-5040378 Serpentine Belt is designed as a direct replacement part for compatible Subaru, Hyundai, Isuzu, Ford select vehicles applications. It is built to support reliable performance, proper fitment, and straightforward installation when replacing a worn or damaged component.

Installation Position: Alternator, Water Pump and Power Steering, Air Conditioning and Idler, Fan and Alternator, Air Conditioning and Power Steering+

Key Features

• Exclusive V-Strong™ EPDM compound formula to ensure extended durability
• less noise and superior temperature resistance
• High strength low elongation polyester tension members resist shock load failure
• Balanced twist cord ensure neutral and uniform tracking during operation
• Fiber-reinforced and staggered ribs offer flexibility thereby reducing cracking and fatigue in the cushion section

Interchange Numbers

Interchange / Cross Reference Part Numbers: 4PK960, 4040377, 5040378, K040378, 378K4, 4PK0960

Please compare these interchange numbers with your original part number and confirm vehicle compatibility before ordering.

Vehicle Fitment

Review the vehicle fitment list below to confirm this part matches your vehicle before purchase.

• 1991 Subaru XT
• 1992 Hyundai Sonata
• 1993 Hyundai Sonata
• 1994 Hyundai Sonata
• 1995 Hyundai Sonata
• 1996 Hyundai Sonata
• 1997 Hyundai Sonata
• 1998 Hyundai Sonata
• 1992 Isuzu Trooper
• 1993 Isuzu Trooper
• 1994 Isuzu Trooper
• 1995 Isuzu Trooper
• 1996 Isuzu Trooper
• 1997 Isuzu Trooper
• 1994 Ford Aspire
• 1995 Ford Aspire
• 1996 Acura SLX
• 1997 Acura SLX
• 1996 Ford Aspire
• 1997 Ford Aspire
• 1997 Isuzu Rodeo
• 1998 Kia Sephia
• 1999 Kia Sephia
• 2000 Kia Sephia
• 1999 Chevrolet Silverado 1500
• 2000 Chevrolet Silverado 1500
• 2001 Chevrolet Silverado 1500
• 2002 Chevrolet Silverado 1500
• 1999 Chevrolet Silverado 2500
• 2000 Chevrolet Silverado 2500
• 2001 Chevrolet Silverado 2500
• 2002 Chevrolet Silverado 2500
• 2003 Chevrolet Silverado 2500
• 2004 Chevrolet Silverado 2500
• 1999 GMC Sierra 1500
• 2000 GMC Sierra 1500
• 1999 GMC Sierra 2500
• 2000 GMC Sierra 2500
• 2001 GMC Sierra 2500
• 2002 GMC Sierra 2500
• 2003 GMC Sierra 2500
• 2004 GMC Sierra 2500
• 2000 Chevrolet Suburban 1500
• 2001 Chevrolet Suburban 1500
• 2002 Chevrolet Suburban 1500
• 2003 Chevrolet Suburban 1500
• 2004 Chevrolet Suburban 1500
• 2005 Chevrolet Suburban 1500
• 2006 Chevrolet Suburban 1500
• 2007 Chevrolet Suburban 1500
• 2008 Chevrolet Suburban 1500
• 2000 Chevrolet Suburban 2500
• 2000 Chevrolet Tahoe
• 2000 GMC Yukon
• 2000 GMC Yukon XL 1500
• 2001 GMC Yukon XL 1500
• 2002 GMC Yukon XL 1500
• 2003 GMC Yukon XL 1500
• 2004 GMC Yukon XL 1500
• 2005 GMC Yukon XL 1500
• 2006 GMC Yukon XL 1500
• 2007 GMC Yukon XL 1500
• 2008 GMC Yukon XL 1500
• 2000 GMC Yukon XL 2500
• 2000 Kia Spectra
• 2001 Kia Spectra
• 2002 Kia Spectra
• 2003 Kia Spectra
• 2001 Chevrolet Silverado 1500 HD
• 2002 Chevrolet Silverado 1500 HD
• 2003 Chevrolet Silverado 1500 HD
• 2001 Chevrolet Silverado 2500 HD
• 2002 Chevrolet Silverado 2500 HD
• 2003 Chevrolet Silverado 2500 HD
• 2004 Chevrolet Silverado 2500 HD
• 2005 Chevrolet Silverado 2500 HD
• 2006 Chevrolet Silverado 2500 HD
• 2007 Chevrolet Silverado 2500 HD
• 2008 Chevrolet Silverado 2500 HD
• 2001 Chevrolet Silverado 3500
• 2002 Chevrolet Silverado 3500
• 2003 Chevrolet Silverado 3500
• 2004 Chevrolet Silverado 3500
• 2005 Chevrolet Silverado 3500
• 2006 Chevrolet Silverado 3500
• 2001 Chevrolet Suburban 2500
• 2002 Chevrolet Suburban 2500
• 2003 Chevrolet Suburban 2500
• 2004 Chevrolet Suburban 2500
• 2005 Chevrolet Suburban 2500
• 2006 Chevrolet Suburban 2500
• 2001 Chevrolet Tahoe
• 2002 Chevrolet Tahoe
• 2003 Chevrolet Tahoe
• 2004 Chevrolet Tahoe
• 2005 Chevrolet Tahoe
• 2006 Chevrolet Tahoe
• 2007 Chevrolet Tahoe
• 2008 Chevrolet Tahoe
• 2001 GMC Sierra 1500
• 2002 GMC Sierra 1500
• 2003 GMC Sierra 1500
• 2004 GMC Sierra 1500
• 2005 GMC Sierra 1500
• 2006 GMC Sierra 1500
• 2001 GMC Sierra 1500 HD
• 2002 GMC Sierra 1500 HD
• 2003 GMC Sierra 1500 HD
• 2001 GMC Sierra 2500 HD
• 2002 GMC Sierra 2500 HD
• 2003 GMC Sierra 2500 HD
• 2004 GMC Sierra 2500 HD
• 2005 GMC Sierra 2500 HD
• 2006 GMC Sierra 2500 HD
• 2007 GMC Sierra 2500 HD
• 2008 GMC Sierra 2500 HD
• 2001 GMC Sierra 3500
• 2002 GMC Sierra 3500
• 2003 GMC Sierra 3500
• 2004 GMC Sierra 3500
• 2005 GMC Sierra 3500
• 2006 GMC Sierra 3500
• 2001 GMC Yukon
• 2002 GMC Yukon
• 2003 GMC Yukon
• 2004 GMC Yukon
• 2005 GMC Yukon
• 2006 GMC Yukon
• 2007 GMC Yukon
• 2001 GMC Yukon XL 2500
• 2002 GMC Yukon XL 2500
• 2003 GMC Yukon XL 2500
• 2004 GMC Yukon XL 2500
• 2005 GMC Yukon XL 2500
• 2006 GMC Yukon XL 2500
• 2002 Cadillac Escalade
• 2003 Cadillac Escalade
• 2004 Cadillac Escalade
• 2005 Cadillac Escalade
• 2006 Cadillac Escalade
• 2007 Cadillac Escalade
• 2008 Cadillac Escalade
• 2002 Cadillac Escalade EXT
• 2003 Cadillac Escalade EXT
• 2004 Cadillac Escalade EXT
• 2005 Cadillac Escalade EXT
• 2006 Cadillac Escalade EXT
• 2007 Cadillac Escalade EXT
• 2008 Cadillac Escalade EXT
• 2002 Chevrolet Avalanche 1500
• 2003 Chevrolet Avalanche 1500
• 2004 Chevrolet Avalanche 1500
• 2005 Chevrolet Avalanche 1500
• 2006 Chevrolet Avalanche 1500
• 2003 Cadillac Escalade ESV
• 2004 Cadillac Escalade ESV
• 2005 Cadillac Escalade ESV
• 2006 Cadillac Escalade ESV
• 2007 Cadillac Escalade ESV
• 2008 Cadillac Escalade ESV
• 2003 Chevrolet Express 1500
• 2003 Chevrolet Express 2500
• 2003 Chevrolet Express 3500
• 2004 Chevrolet Express 3500
• 2005 Chevrolet Express 3500
• 2003 Chevrolet Silverado 1500
• 2004 Chevrolet Silverado 1500
• 2005 Chevrolet Silverado 1500
• 2006 Chevrolet Silverado 1500
• 2007 Chevrolet Silverado 1500
• 2008 Chevrolet Silverado 1500
• 2003 Chevrolet W3500 Tiltmaster
• 2004 Chevrolet W3500 Tiltmaster
• 2005 Chevrolet W3500 Tiltmaster
• 2006 Chevrolet W3500 Tiltmaster
• 2007 Chevrolet W3500 Tiltmaster
• 2003 Chevrolet W4500 Tiltmaster
• 2004 Chevrolet W4500 Tiltmaster
• 2005 Chevrolet W4500 Tiltmaster
• 2006 Chevrolet W4500 Tiltmaster
• 2007 Chevrolet W4500 Tiltmaster
• 2003 GMC Savana 1500
• 2003 GMC Savana 2500
• 2003 GMC Savana 3500
• 2004 GMC Savana 3500
• 2005 GMC Savana 3500
• 2003 Hummer H2
• 2004 Hummer H2
• 2005 Hummer H2
• 2006 Hummer H2
• 2007 Hummer H2
• 2008 Hummer H2
• 2003 Isuzu NPR
• 2004 Isuzu NPR
• 2005 Isuzu NPR
• 2006 Isuzu NPR
• 2007 Isuzu NPR
• 2004 Chevrolet Express 1500
• 2004 Chevrolet Express 2500
• 2004 GMC Savana 1500
• 2004 GMC Savana 2500
• 2005 GMC Savana 2500
• 2004 GMC W3500 Forward
• 2005 GMC W3500 Forward
• 2006 GMC W3500 Forward
• 2007 GMC W3500 Forward
• 2008 GMC W3500 Forward
• 2004 GMC W4500 Forward
• 2005 GMC W4500 Forward
• 2006 GMC W4500 Forward
• 2007 GMC W4500 Forward
• 2008 GMC W4500 Forward
• 2009 GMC W4500 Forward
• 2004 Isuzu NPR-HD
• 2005 Isuzu NPR-HD
• 2006 Isuzu NPR-HD
• 2007 Isuzu NPR-HD
• 2008 Isuzu NPR-HD
• 2004 Kia Spectra
• 2004 Workhorse Custom Chassis P42
• 2005 Workhorse Custom Chassis P42
• 2005 Chevrolet Express 1500
• 2006 Chevrolet Express 1500
• 2007 Chevrolet Express 1500
• 2008 Chevrolet Express 1500
• 2005 Chevrolet Express 2500
• 2005 Chevrolet Silverado 1500 HD
• 2006 Chevrolet Silverado 1500 HD
• 2005 GMC Savana 1500
• 2006 GMC Savana 1500
• 2007 GMC Savana 1500
• 2008 GMC Savana 1500
• 2005 GMC Sierra 1500 HD
• 2006 GMC Sierra 1500 HD
• 2006 Chevrolet Express 2500
• 2006 Chevrolet Express 3500
• 2007 Chevrolet Express 3500
• 2008 Chevrolet Express 3500
• 2006 GMC Savana 2500
• 2007 GMC Savana 2500
• 2008 GMC Savana 2500
• 2006 GMC Savana 3500
• 2007 GMC Savana 3500
• 2008 GMC Savana 3500
• 2007 Chevrolet Avalanche
• 2008 Chevrolet Avalanche
• 2007 Chevrolet Express 2500
• 2008 Chevrolet Express 2500
• 2007 Chevrolet Silverado 1500 Classic
• 2007 Chevrolet Silverado 1500 HD Classic
• 2007 Chevrolet Silverado 2500 HD Classic
• 2007 Chevrolet Silverado 3500 Classic
• 2007 Chevrolet Silverado 3500 HD
• 2008 Chevrolet Silverado 3500 HD
• 2007 Chevrolet Suburban 2500
• 2008 Chevrolet Suburban 2500
• 2007 GMC Sierra 1500
• 2008 GMC Sierra 1500
• 2007 GMC Sierra 1500 Classic
• 2007 GMC Sierra 1500 HD Classic
• 2007 GMC Sierra 2500 HD Classic
• 2007 GMC Sierra 3500 Classic
• 2007 GMC Sierra 3500 HD
• 2008 GMC Sierra 3500 HD
• 2007 GMC Yukon XL 2500
• 2008 GMC Yukon XL 2500
• 2007 Workhorse W42
• 2008 Workhorse W42
• 2009 Workhorse W42
• 2010 Workhorse W42
• 2007 Workhorse Custom Chassis W42
• 2008 Workhorse Custom Chassis W42
• 2009 Workhorse Custom Chassis W42
• 2010 Workhorse Custom Chassis W42
• 2008 Chevrolet Trailblazer
• 2008 GMC Yukon
• 2008 Isuzu NPR

Vehicle Fitment Table