SKP SK645049 Automatic Transmission Wiring Harness
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SKP

SKP SK645049 Automatic Transmission Wiring Harness

Brand SKP SK645049
Fits Aston Martin, Bentley, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Jaguar, Rolls-Royce, and Workhorse · 380 vehicles

Transmission harness. Supports electrical routing for listed automatic transmission applications.

4L80-E fitment. Listed for applications that specify the 4L80-E transmission code.

Part number SK645049. Cataloged for accurate replacement matching across supported vehicles.

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Automatic Transmission Wiring Harness Overview

This SKP automatic transmission wiring harness, part number SK645049, is built for vehicles equipped with the 4L80-E automatic transmission and other listed automatic applications. It supports transmission electrical connections for a wide range of Chevrolet, GMC, and specialty vehicles, including Chevrolet Silverado and GMC Sierra applications.

Use SK645049 when you need a direct-fit transmission harness for automatic transmission service on supported applications. The fitment list includes multiple Chevrolet Silverado, GMC Savana, and GMC Yukon XL configurations, along with select Bentley, Rolls-Royce, Jaguar, Hummer, Isuzu, and Workhorse models.

Key Features

  • Automatic transmission wiring harness for transmission electrical routing and signal transfer.
  • Fits applications with 4L80-E transmission code where specified.
  • Supports a broad range of Chevrolet Silverado, GMC Sierra, and GMC Savana fitments.
  • Part number SK645049 for catalog matching and service identification.
  • Compatible with multiple automatic transmission applications across light-duty and commercial vehicles.

Detailed Description

SK645049 is an automatic transmission wiring harness designed for listed automatic transmission applications, with many fitments tied to the 4L80-E transmission code. This harness is used in vehicles such as the Chevrolet Silverado 1500, Chevrolet Suburban 2500, and GMC Yukon XL 2500, as well as several Express, Savana, and W-series commercial platforms. The broad fitment coverage makes it a practical replacement when diagnosing transmission electrical faults or restoring proper harness routing in supported vehicles.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

  • Transmission wiring damage from heat, age, or vibration.
  • Intermittent electrical connection issues in the transmission circuit.
  • Harness deterioration that can trigger shifting or communication problems.
  • Service replacement needs on vehicles with the 4L80-E transmission code.

Installation Notes and Tips

Verify the transmission code and vehicle application before ordering. Match the part number SK645049 to the listed fitment details, especially where notes specify 4L80-E or 4-speed transmission requirements. Confirm connector routing and harness path against the original component before installation.

Quality Assurance

SKP replacement parts are cataloged for application-specific fitment, and this harness is listed against a defined vehicle and transmission set for accurate selection.

Related reading

This part fits 380 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypeNotes
2009ChevroletExpress 45006.0LV8—Trans. code 4L80-E
2009GMCSavana 25004.8LV8—Trans. code 4L80-E
2009GMCSavana 35004.8LV8—Trans. code 4L80-E
2008ChevroletExpress 25004.8LV8—Trans. code 4L80-E
2008ChevroletExpress 35004.8LV8—Trans. code 4L80-E
2008GMCSavana 25004.8LV8—Trans. code 4L80-E
2008GMCSavana 35004.8LV8—Trans. code 4L80-E
2007ChevroletExpress 25004.8LV8—Trans. code 4L80-E
2007ChevroletExpress 35004.8LV8—Trans. code 4L80-E
2007ChevroletSilverado 2500 HD Classic6.0LV8—4 speed trans.
2007ChevroletSilverado 3500 Classic6.0LV8—4 speed trans.
2007ChevroletSuburban 25006.0LV8——
2007ChevroletW3500 Tiltmaster6.0LV8——
2007ChevroletW4500 Tiltmaster6.0LV8——
2007GMCSavana 25004.8LV8—Trans. code 4L80-E
2007GMCSavana 35004.8LV8—Trans. code 4L80-E
2007GMCW3500 Forward6.0LV8—Trans. code 4L80-E
2007GMCW4500 Forward6.0LV8—Trans. code 4L80-E
2007GMCW5500 Forward5.2LL4DIESELW3500 Forward or W4500 Forward; Trans. code 4L80-E
2007GMCW5500HD Forward5.2LL4DIESELW3500 Forward or W4500 Forward; Trans. code 4L80-E
2007GMCYukon XL 25006.0LV8——
2006BentleyAzure6.8LV8——
2006ChevroletExpress 25006.0LV8——
2006ChevroletExpress 35006.6LV8——
2006ChevroletSilverado 15004.3LV6——
2006ChevroletSilverado 1500 HD6.0LV8——
2006ChevroletSilverado 2500 HD8.1LV8——
2006ChevroletSilverado 35008.1LV8——
2006ChevroletSuburban 25008.1LV8——
2006ChevroletW3500 Tiltmaster6.0LV8——
2006ChevroletW4500 Tiltmaster6.0LV8——
2006GMCSavana 25004.3LV6—Trans. code 4L80-E
2006GMCSavana 35004.8LV8—Trans. code 4L80-E
2006GMCSierra 15006.0LV8—Sierra 1500 HD
2006GMCW3500 Forward6.0LV8—Trans. code 4L80-E
2006GMCW4500 Forward6.0LV8—Trans. code 4L80-E
2006GMCW5500 Forward5.2LL4DIESELW3500 Forward or W4500 Forward; Trans. code 4L80-E
2006GMCW5500HD Forward5.2LL4DIESELW3500 Forward or W4500 Forward; Trans. code 4L80-E
2006GMCYukon XL 25006.0LV8—Trans. code 4L80-E
2005ChevroletExpress 25006.0LV8——
2005ChevroletExpress 35004.8LV8——
2005ChevroletSilverado 15004.3LV6——
2005ChevroletSilverado 1500 HD6.0LV8——
2005ChevroletSilverado 2500 HD8.1LV8——
2005ChevroletSilverado 35008.1LV8——
2005ChevroletSuburban 25008.1LV8——
2005ChevroletW3500 Tiltmaster6.0LV8——
2005ChevroletW4500 Tiltmaster6.0LV8——
2005GMCSavana 25004.3LV6—Trans. code 4L80-E
2005GMCSavana 35004.8LV8——
2005GMCSierra 15006.0LV8—Trans. code 4L80-E
2005GMCYukon XL 25006.0LV8—Trans. code 4L80-E
2005WorkhorseFasTrack FT14613.9LL4DIESEL—
2005WorkhorseFasTrack FT16013.9LL4DIESEL—
2005WorkhorseFasTrack FT18016.0LV8——
2004ChevroletExpress 25006.0LV8——
2004ChevroletExpress 35004.8LV8——
2004ChevroletSilverado 15004.3LV6——
2004ChevroletSilverado 25006.0LV8——
2004ChevroletSilverado 2500 HD8.1LV8——
2004ChevroletSilverado 35008.1LV8——
2004ChevroletSuburban 25008.1LV8——
2004ChevroletW3500 Tiltmaster4.8LL4——
2004ChevroletW4500 Tiltmaster4.8LL4——
2004GMCSavana 25004.3LV6—Trans. code 4L80-E
2004GMCSavana 35004.8LV8——
2004GMCSierra 15004.3LV6—Trans. code 4L80-E
2004GMCSierra 25006.0LV8—4 speed trans.
2004GMCYukon XL 25006.0LV8—Trans. code 4L80-E
2004HummerH16.5LV8DIESEL—
2003BentleyAzure6.8LV8——
2003BentleyContinental6.8LV8——
2003CadillacEscalade5.3LV8—Trans. code 4L80-E
2003ChevroletExpress 25006.0LV8——
2003ChevroletExpress 35004.8LV8——
2003ChevroletSilverado 15004.3LV6——
2003ChevroletSilverado 25006.0LV8——
2003ChevroletSilverado 2500 HD8.1LV8——
2003ChevroletSilverado 35008.1LV8——
2003ChevroletSuburban 15005.3LV8——
2003ChevroletSuburban 25008.1LV8——
2003GMCSavana 25004.3LV6—Trans. code 4L80-E
2003GMCSavana 35004.8LV8——
2003GMCSierra 15004.3LV6—Trans. code 4L80-E
2003GMCSierra 25006.0LV8—4 speed trans.
2003GMCYukon XL 15005.3LV8—Trans. code 4L80-E
2003GMCYukon XL 25006.0LV8—Trans. code 4L80-E
2003HummerH16.5LV8DIESEL—
2002BentleyContinental6.8LV8——
2002CadillacEscalade6.0LV8—Trans. code 4L80-E
2002ChevroletExpress 25004.3LV6——
2002ChevroletExpress 35006.5LV8——
2002ChevroletSilverado 15004.3LV6——
2002ChevroletSilverado 25006.0LV8——
2002ChevroletSilverado 2500 HD8.1LV8——
2002ChevroletSilverado 35008.1LV8——
2002ChevroletSuburban 15005.3LV8——
2002ChevroletSuburban 25008.1LV8——
2002GMCSavana 25004.3LV6—Trans. code 4L80-E
2002GMCSavana 35004.3LV6——
2002GMCSierra 15004.3LV6—Trans. code 4L80-E
2002GMCSierra 25006.0LV8—4 speed trans.
2002GMCYukon XL 15005.3LV8—Trans. code 4L80-E
2002GMCYukon XL 25006.0LV8—Trans. code 4L80-E
2002HummerH16.5LV8DIESEL—
2002Rolls-RoycePark Ward5.4LV12——
2001BentleyContinental6.8LV8——
2001ChevroletExpress 25004.3LV6——
2001ChevroletExpress 35006.5LV8——
2001ChevroletSilverado 25006.0LV8——
2001ChevroletSilverado 2500 HD8.1LV8——
2001ChevroletSilverado 35008.1LV8——
2001ChevroletSuburban 15005.3LV8——
2001ChevroletSuburban 25008.1LV8——
2001GMCSavana 25004.3LV6—Trans. code 4L80-E
2001GMCSavana 35005.7LV8——
2001GMCSierra 15004.3LV6—Trans. code 4L80-E
2001GMCSierra 25006.0LV8—Trans. code 4L80-E
2001GMCYukon6.0LV8—Trans. code 4L80-E
2001GMCYukon XL 15005.3LV8—Trans. code 4L80-E
2001GMCYukon XL 25006.0LV8——
2000BentleyContinental6.8LV8——
2000ChevroletC25005.7LV8——
2000ChevroletC35006.5LV8——
2000ChevroletExpress 25004.3LV6——
2000ChevroletExpress 35006.5LV8——
2000ChevroletK25005.7LV8——
2000ChevroletK35007.4LV8——
2000ChevroletSilverado 25006.0LV8——
2000ChevroletSuburban 25006.0LV8——
2000GMCC35005.7LV8—Automatic trans.
2000GMCK35005.7LV8—Automatic trans.
2000GMCSavana 25004.3LV6—Trans. code 4L80-E
2000GMCSavana 35004.3LV6——
2000Rolls-RoyceCorniche6.8LV8——
2000WorkhorseFasTrack FT12605.7LV8——
2000WorkhorseFasTrack FT14605.7LV8——
1999BentleyContinental6.8LV8——
1999ChevroletC15004.3LV6——
1999ChevroletC25005.0LV8——
1999ChevroletC35006.5LV8——
1999ChevroletExpress 25004.3LV6——
1999ChevroletExpress 35006.5LV8——
1999ChevroletK15005.7LV8——
1999ChevroletK1500 Suburban5.7LV8—Trans. code 4L80-E
1999ChevroletK25005.7LV8——
1999ChevroletK2500 Suburban5.7LV8——
1999ChevroletK35007.4LV8——
1999ChevroletP304.3LV6—Trans. code 4L80-E
1999ChevroletSilverado 25006.0LV8——
1999ChevroletTahoe5.7LV8——
1999GMCC1500 Suburban5.7LV8—Trans. code 4L80-E
1999GMCC25005.0LV8—Trans. code 4L80-E
1999GMCC2500 Suburban5.7LV8——
1999GMCC35005.7LV8—Automatic trans.
1999GMCK1500 Suburban5.7LV8—Trans. code 4L80-E
1999GMCK25005.7LV8—Automatic trans.
1999GMCK35005.7LV8—Automatic trans.
1999GMCP35004.3LV6—Trans. code 4L80-E
1999GMCSavana 25004.3LV6—Trans. code 4L80-E
1999GMCSavana 35005.7LV8——
1999GMCYukon5.7LV8—Trans. code 4L80-E
1998Aston MartinDB73.2LL6—Automatic trans.
1998BentleyContinental6.8LV8——
1998BentleyTurbo R6.8LV8——
1998ChevroletC15004.3LV6——
1998ChevroletC25005.0LV8——
1998ChevroletC2500 Suburban5.7LV8——
1998ChevroletC35006.5LV8——
1998ChevroletExpress 25004.3LV6——
1998ChevroletExpress 35006.5LV8——
1998ChevroletK15004.3LV6——
1998ChevroletK1500 Suburban5.7LV8—Trans. code 4L80-E
1998ChevroletK25005.7LV8——
1998ChevroletK2500 Suburban5.7LV8——
1998ChevroletK35007.4LV8——
1998ChevroletP304.3LV6—Trans. code 4L80-E
1998ChevroletTahoe5.7LV8——
1998GMCC1500 Suburban5.7LV8—Trans. code 4L80-E
1998GMCC25005.0LV8—Trans. code 4L80-E
1998GMCC2500 Suburban5.7LV8——
1998GMCC35005.7LV8—Automatic trans.
1998GMCK1500 Suburban5.7LV8—Trans. code 4L80-E
1998GMCK25005.0LV8—Trans. code 4L80-E
1998GMCK2500 Suburban5.7LV8——
1998GMCK35005.7LV8—Automatic trans.
1998GMCP35004.3LV6—Trans. code 4L80-E
1998GMCSavana 25004.3LV6—Trans. code 4L80-E
1998GMCSavana 35004.3LV6——
1998GMCYukon5.7LV8—Trans. code 4L80-E
1997BentleyBrooklands6.8LV8——
1997BentleyContinental6.8LV8——
1997BentleyTurbo R6.8LV8——
1997ChevroletC15004.3LV6——
1997ChevroletC1500 Suburban5.7LV8—Trans. code 4L80-E
1997ChevroletC25005.0LV8——
1997ChevroletC2500 Suburban5.7LV8——
1997ChevroletC35006.5LV8——
1997ChevroletExpress 25004.3LV6——
1997ChevroletExpress 35006.5LV8——
1997ChevroletK15004.3LV6——
1997ChevroletK1500 Suburban5.7LV8—Trans. code 4L80-E
1997ChevroletK25005.7LV8——
1997ChevroletK2500 Suburban5.7LV8——
1997ChevroletK35007.4LV8——
1997ChevroletP304.3LV6—Trans. code 4L80-E
1997ChevroletTahoe5.7LV8——
1997GMCC15004.3LV6—Trans. code 4L80-E
1997GMCC1500 Suburban5.7LV8—Trans. code 4L80-E
1997GMCC25005.0LV8—Trans. code 4L80-E
1997GMCC2500 Suburban5.7LV8——
1997GMCC35005.7LV8—Automatic trans.
1997GMCK15004.3LV6—Trans. code 4L80-E
1997GMCK1500 Suburban5.7LV8—Trans. code 4L80-E
1997GMCK25005.7LV8—Trans. code 4L80-E
1997GMCK2500 Suburban5.7LV8——
1997GMCK35005.7LV8—Automatic trans.
1997GMCP35004.3LV6—Trans. code 4L80-E
1997GMCSavana 25004.3LV6—Trans. code 4L80-E
1997GMCSavana 35004.3LV6——
1997GMCYukon5.7LV8—Trans. code 4L80-E
1997Rolls-RoyceSilver Spur6.8LV8——
1996BentleyContinental6.8LV8——
1996BentleyTurbo R6.8LV8——
1996ChevroletC15004.3LV6——
1996ChevroletC1500 Suburban5.7LV8—Trans. code 4L80-E
1996ChevroletC25005.0LV8—Trans. code 4L80-E
1996ChevroletC2500 Suburban5.7LV8—Trans. code 4L80-E
1996ChevroletC35006.5LV8DIESELAutomatic trans.
1996ChevroletExpress 25004.3LV6——
1996ChevroletExpress 35006.5LV8——
1996ChevroletG304.3LV6——
1996ChevroletK15004.3LV6——
1996ChevroletK1500 Suburban5.7LV8—Trans. code 4L80-E
1996ChevroletK25005.7LV8——
1996ChevroletK2500 Suburban5.7LV8—Trans. code 4L80-E
1996ChevroletK35007.4LV8——
1996ChevroletP304.3LV6—Trans. code 4L80-E
1996ChevroletTahoe5.7LV8——
1996GMCC15004.3LV6—Trans. code 4L80-E
1996GMCC1500 Suburban5.7LV8—Trans. code 4L80-E
1996GMCC25005.0LV8—Trans. code 4L80-E
1996GMCC2500 Suburban5.7LV8—Trans. code 4L80-E
1996GMCC35005.7LV8—Automatic trans.
1996GMCG35004.3LV6——
1996GMCK15004.3LV6—Trans. code 4L80-E
1996GMCK1500 Suburban5.7LV8—Trans. code 4L80-E
1996GMCK25005.7LV8—Trans. code 4L80-E
1996GMCK2500 Suburban5.7LV8—Trans. code 4L80-E
1996GMCK35005.7LV8—Automatic trans.
1996GMCP35004.3LV6—Trans. code 4L80-E
1996GMCSavana 15004.3LV6—Trans. code 4L80-E
1996GMCSavana 25004.3LV6—Trans. code 4L80-E
1996GMCSavana 35005.7LV8——
1996GMCYukon5.7LV8—Trans. code 4L80-E
1996IsuzuNPR3.9LL4DIESELTrans. code 4L80-E
1996JaguarXJS4.0LL6——
1995BentleyContinental6.8LV8——
1995BentleyTurbo R6.8LV8——
1995ChevroletC15004.3LV6——
1995ChevroletC1500 Suburban5.7LV8—Trans. code 4L80-E
1995ChevroletC25004.3LV6—Trans. code 4L80-E
1995ChevroletC2500 Suburban5.7LV8—Trans. code 4L80-E
1995ChevroletC35005.7LV8—Automatic trans.
1995ChevroletG304.3LV6—Trans. code 4L80-E
1995ChevroletK15004.3LV6——
1995ChevroletK1500 Suburban5.7LV8—Trans. code 4L80-E
1995ChevroletK25005.7LV8——
1995ChevroletK2500 Suburban5.7LV8—Trans. code 4L80-E
1995ChevroletK35007.4LV8——
1995ChevroletP304.3LV6—Trans. code 4L80-E
1995ChevroletTahoe5.7LV8——
1995GMCC15004.3LV6—Trans. code 4L80-E
1995GMCC1500 Suburban5.7LV8—Trans. code 4L80-E
1995GMCC25004.3LV6—Trans. code 4L80-E
1995GMCC2500 Suburban5.7LV8—Trans. code 4L80-E
1995GMCC35005.7LV8—Automatic trans.
1995GMCG35004.3LV6—Trans. code 4L80-E
1995GMCK15004.3LV6—Trans. code 4L80-E
1995GMCK1500 Suburban5.7LV8—Trans. code 4L80-E
1995GMCK25004.3LV6—Trans. code 4L80-E
1995GMCK2500 Suburban5.7LV8—Trans. code 4L80-E
1995GMCK35005.7LV8—Automatic trans.
1995GMCP35004.3LV6—Trans. code 4L80-E
1995GMCYukon5.7LV8—Trans. code 4L80-E
1995IsuzuNPR3.9LL4DIESELTrans. code 4L80-E
1995JaguarXJS4.0LL6——
1994BentleyContinental6.8LV8——
1994ChevroletBlazer5.7LV8—Trans. code 4L80-E
1994ChevroletC15004.3LV6——
1994ChevroletC25004.3LV6—Trans. code 4L80-E
1994ChevroletC2500 Suburban5.7LV8—Trans. code 4L80-E
1994ChevroletC35005.7LV8—Automatic trans.
1994ChevroletG304.3LV6—Trans. code 4L80-E
1994ChevroletK15004.3LV6——
1994ChevroletK1500 Suburban5.7LV8—Trans. code 4L80-E
1994ChevroletK25005.7LV8——
1994ChevroletK2500 Suburban5.7LV8—Trans. code 4L80-E
1994ChevroletK35007.4LV8——
1994ChevroletP304.3LV6—Automatic trans.
1994GMCC15004.3LV6—Trans. code 4L80-E
1994GMCC25004.3LV6—Trans. code 4L80-E
1994GMCC2500 Suburban5.7LV8—Trans. code 4L80-E
1994GMCC35005.7LV8—Automatic trans.
1994GMCG35004.3LV6—Trans. code 4L80-E
1994GMCK15004.3LV6—Trans. code 4L80-E
1994GMCK1500 Suburban5.7LV8—Trans. code 4L80-E
1994GMCK25004.3LV6—Trans. code 4L80-E
1994GMCK2500 Suburban5.7LV8—Trans. code 4L80-E
1994GMCK35005.7LV8—Automatic trans.
1994GMCP35004.3LV6—Automatic trans.
1994GMCYukon5.7LV8—Trans. code 4L80-E
1994IsuzuNPR3.9LL4DIESELTrans. code 4L80-E
1994JaguarXJ126.0LV12——
1994JaguarXJS4.0LL6—Automatic trans.
1993BentleyContinental6.8LV8——
1993ChevroletC15004.3LV6——
1993ChevroletC25004.3LV6—Trans. code 4L80-E
1993ChevroletC2500 Suburban5.7LV8—Trans. code 4L80-E
1993ChevroletC35005.7LV8—Automatic trans.
1993ChevroletG304.3LV6—Trans. code 4L80-E
1993ChevroletK15006.2LV8——
1993ChevroletK1500 Suburban5.7LV8—Trans. code 4L80-E
1993ChevroletK25005.7LV8——
1993ChevroletK2500 Suburban5.7LV8—Trans. code 4L80-E
1993ChevroletK35007.4LV8——
1993ChevroletP304.3LV6—Automatic trans.
1993GMCC15004.3LV6—Trans. code 4L80-E
1993GMCC25004.3LV6—Trans. code 4L80-E
1993GMCC2500 Suburban5.7LV8—Trans. code 4L80-E
1993GMCC35005.7LV8—Automatic trans.
1993GMCG35004.3LV6—Trans. code 4L80-E
1993GMCK15004.3LV6—Trans. code 4L80-E
1993GMCK1500 Suburban5.7LV8—Trans. code 4L80-E
1993GMCK25004.3LV6—Trans. code 4L80-E
1993GMCK2500 Suburban5.7LV8—Trans. code 4L80-E
1993GMCK35005.7LV8—Automatic trans.
1993GMCP35004.3LV6—Automatic trans.
1993IsuzuNPR3.9LL4DIESELTrans. code 4L80-E
1992ChevroletC15004.3LV6——
1992ChevroletC25004.3LV6—Trans. code 4L80-E
1992ChevroletC2500 Suburban5.7LV8—Trans. code 4L80-E
1992ChevroletC35005.7LV8—Automatic trans.
1992ChevroletG304.3LV6—Trans. code 4L80-E
1992ChevroletK15004.3LV6—Trans. code 4L80-E
1992ChevroletK1500 Suburban5.7LV8—Trans. code 4L80-E
1992ChevroletK25005.7LV8——
1992ChevroletK2500 Suburban5.7LV8—Trans. code 4L80-E
1992ChevroletK35007.4LV8——
1992ChevroletP304.3LV6—Automatic trans.
1992GMCC25004.3LV6—Trans. code 4L80-E
1992GMCC2500 Suburban5.7LV8—Trans. code 4L80-E
1992GMCC35005.7LV8—Automatic trans.
1992GMCG35004.3LV6—Trans. code 4L80-E
1992GMCK15004.3LV6—Trans. code 4L80-E
1992GMCK1500 Suburban5.7LV8—Trans. code 4L80-E
1992GMCK25004.3LV6—Trans. code 4L80-E
1992GMCK35005.7LV8—Automatic trans.
1992GMCP35004.3LV6—Automatic trans.
1992IsuzuNPR3.9LL4DIESELTrans. code 4L80-E
1991ChevroletC15004.3LV6—Trans. code 4L80-E
1991ChevroletC25004.3LV6—Trans. code 4L80-E
1991ChevroletC35005.7LV8—Automatic trans.
1991ChevroletK25005.7LV8——
1991ChevroletK35007.4LV8——
1991ChevroletP303.9LL4DIESELAutomatic trans.
1991ChevroletR1500 Suburban5.7LV8—Trans. code 4L80-E
1991ChevroletR35005.7LV8—Trans. code 4L80-E
1991ChevroletV1500 Suburban5.7LV8—Trans. code 4L80-E
1991ChevroletV2500 Suburban5.7LV8—Trans. code 4L80-E
1991GMCC25004.3LV6—Trans. code 4L80-E
1991GMCC35005.7LV8—Trans. code 4L80-E
1991GMCK15004.3LV6—Trans. code 4L80-E
1991GMCK25004.3LV6—Trans. code 4L80-E
1991GMCK35005.7LV8—Trans. code 4L80-E
1991GMCP35003.9LL4DIESELAutomatic trans.
1991GMCR35005.7LV8—Trans. code 4L80-E
1991GMCV1500 Suburban5.7LV8—Trans. code 4L80-E
1991GMCV2500 Suburban5.7LV8—Trans. code 4L80-E
1991GMCV35005.7LV8—Trans. code 4L80-E