Transmission & Drivetrain Wiring, Harnesses & Connectors for 2003 GMC Sierra 3500
Find parts that fit
We need more information about your vehicle to confirm fit.
2003
GMC
Sierra 3500
SPONSOREDSPONSOREDSPONSOREDSPONSORED
All
Auction
Buy It Now
182 Results
New Transmission Wiring Harness Duramax Allison 1000 For 01-03 GM Chevy 29541371 (Fits: 2003 GMC Sierra 3500)
Brand New: Aftermarket ProductsILS 178.79ILS 407.07 shippingFor 1999-2003 Transmission Wiring Harness 1000/2000 Allison 5 SPEED GM/DURAMAX (Fits: 2003 GMC Sierra 3500)
Brand NewILS 215.66or Best OfferILS 408.15 shipping29541371 Transmission Internal Wire Harness for GM & Allison 1000 2000 1999-2003 (Fits: 2003 GMC Sierra 3500)
Brand NewILS 216.00Was: ILS 239.98ILS 238.68 shippingTransmission Wire Harness for GMC Sierra 3500 Yukon XL 2500 C2500 Suburban C3500 (Fits: 2003 GMC Sierra 3500)
Brand New: UnbrandedILS 78.18or Best OfferILS 404.13 shippingTransmission Wire Harness for Chevy Silverado 1500 2500 Tahoe GMC Sierra 1500 (Fits: 2003 GMC Sierra 3500)
Brand New: UnbrandedILS 99.78or Best OfferILS 312.50 shipping03-07 Chevy/gmc Transfer Case Wire Harness Electric Shift Wire Loom Duramax 6.6L (Fits: 2003 GMC Sierra 3500)
Pre-Owned: GMILS 666.72or Best OfferILS 313.58 shippingAutomatic Transmission Connector For GMC Chevy CADILLAC BUICK HUMMER & More (Fits: 2003 GMC Sierra 3500)
Brand NewILS 111.70ILS 235.62 shippingTransmission Internal Wire Harness 3500032 Fit For 1994-2003 Chevrolet GMC 4L80E (Fits: 2003 GMC Sierra 3500)
Brand NewILS 61.79or Best OfferILS 220.09 shippingFor 1999-2003 Transmission Wiring Harness 1000/2000 Allison 5 SPEED GM/DURAMAX (Fits: 2003 GMC Sierra 3500)
Brand NewILS 215.66or Best OfferILS 408.15 shippingFor 1999-2003 Transmission Wiring Harness 1000/2000 Allison 5 SPEED GM/DURAMAX (Fits: 2003 GMC Sierra 3500)
Brand NewILS 215.66Was: ILS 308.07ILS 408.15 shippingTransmission Wire Harness for GMC Sierra 2500 Yukon XL 2500 C2500 Suburban C3500 (Fits: 2003 GMC Sierra 3500)
Brand New: UnbrandedILS 70.73or Best OfferILS 311.65 shippingFor 1999-2003 Transmission Wiring Harness 1000/2000 Allison 5 SPEED GM/DURAMAX (Fits: 2003 GMC Sierra 3500)
Brand NewILS 215.66ILS 408.15 shippingNew Transmission Internal Wire Harness For 1994-2003 Chevrolet GMC 4L80E 3500032 (Fits: 2003 GMC Sierra 3500)
Brand NewILS 64.77or Best OfferILS 220.20 shippingTransmission Internal Wire Harness 24222798 For 94-2003 Chevrolet GMC 4L80E New (Fits: 2003 GMC Sierra 3500)
Brand NewILS 62.54or Best OfferILS 249.74 shippingTransmission Internal Wire Harness For Chevrolet GMC 1994-2003 4L80E 3500032 (Fits: 2003 GMC Sierra 3500)
Brand NewILS 61.79or Best OfferILS 220.09 shipping4L80E Transmission Internal Wire Harness 24222798 For 1994-2003 Chevrolet GMC (Fits: 2003 GMC Sierra 3500)
Brand New: UnbrandedILS 74.42or Best OfferILS 5.59 shippingTransmission Wire Harness for Chevy Tahoe Silverado 1500 2500 GMC Sierra 1500 (Fits: 2003 GMC Sierra 3500)
Brand NewILS 109.10or Best OfferILS 312.76 shippingTransmission Wire Harness for GMC Sierra 2500 C2500 Suburban C3500 Yukon XL 2500 (Fits: 2003 GMC Sierra 3500)
Brand NewILS 107.61or Best OfferILS 312.73 shippingTransmission Wire Harness for GMC Sierra 1500 Chevy Silverado 1500 2500 Tahoe (Fits: 2003 GMC Sierra 3500)
Brand New: UnbrandedILS 107.23or Best OfferILS 312.73 shippingNew 4L80E Transmission Internal Wire Harness For 94-03 Chevrolet GMC 24222798 (Fits: 2003 GMC Sierra 3500)
Brand NewILS 56.21or Best OfferILS 295.55 shippingTransmission Wire Harness for Chevy Tahoe Express 2500 GMC Yukon Sierra 3500 RWD (Fits: 2003 GMC Sierra 3500)
Brand New: UnbrandedILS 110.96or Best OfferILS 312.84 shipping29541371 Transmission Wiring Harness Fits for 1999-2003 GM Chevy Duramax Allison (Fits: 2003 GMC Sierra 3500)
Brand NewILS 215.62Was: ILS 431.25ILS 408.15 shippingTransmission Internal Wiring Harness 24222798 For 1994-2003 Chevrolet GMC 4L80E (Fits: 2003 GMC Sierra 3500)
Brand New: UnbrandedILS 74.46or Best OfferILS 5.59 shippingTransmission Wire Harness for GMC Sierra 2500 01-03 Yukon XL 2500 C2500 Suburban (Fits: 2003 GMC Sierra 3500)
Brand New: UnbrandedILS 74.46or Best OfferILS 311.76 shipping1999-2003 Transmission Wiring Harness - 1000/2000 ALLISON 5 SPEED GM/DURAMAX (Fits: 2003 GMC Sierra 3500)
Brand New: UnbrandedILS 216.00or Best OfferILS 408.19 shippingFor Chevy Chevrolet GMC 213-958 AC Delco Automatic Transmission Speed Sensor New (Fits: 2003 GMC Sierra 3500)
Brand New: ACDelcoILS 384.61ILS 243.67 shippingVehicle Speed Sensor Connector For GMC Sierra 3500 2001 2002 2003 2004 2005 2006 (Fits: 2003 GMC Sierra 3500)
Brand New: Handy PackILS 79.60ILS 234.66 shippingTransmission Internal Wire Harness 3500032 For 1994-2003 Chevrolet GMC 4L80E New (Fits: 2003 GMC Sierra 3500)
Brand NewILS 63.43or Best OfferILS 249.74 shippingTransmission Internal Wire Harness 24222798 For 1994-2003 Chevrolet GMC 4L80E (Fits: 2003 GMC Sierra 3500)
Brand New: UnbrandedILS 74.42or Best OfferILS 5.59 shipping4L80E Internal Transmission Wire Harness For MT1 94-03 Repl. 350-0032 24222798 (Fits: 2003 GMC Sierra 3500)
Brand New: UnbrandedILS 74.46or Best OfferILS 5.59 shipping29541371 Transmission Wire Harness Fits 1999-2003 GM & Allison 1000 2000 240 (Fits: 2003 GMC Sierra 3500)
Brand NewILS 216.00Was: ILS 239.98ILS 300.29 shippingTransmission Internal Wire Harness 24222798 Fits 1994-2003 Chevrolet GMC 4L80E (Fits: 2003 GMC Sierra 3500)
Brand New: UnbrandedILS 74.08or Best OfferFree shippingNew 4-PIN Wire Leads Transmission Neutral Safety Switch Connector For GMC 4L60E (Fits: 2003 GMC Sierra 3500)
Brand New: Aftermarket ProductsILS 33.52ILS 233.32 shipping80 soldGM Speed Sensor Connector Repair 4L60E 4L80E 4T60E 2 pin Rostra 350-0056 33855VC (Fits: 2003 GMC Sierra 3500)
Brand New: Rostra Precision ControlsILS 68.91ILS 220.32 shippingOnly 3 leftFor 2001-2003 GMC Sierra 3500 Neutral Safety Switch Connector SMP 45335QR 2002 (Fits: 2003 GMC Sierra 3500)
Brand New: Standard Motor ProductsILS 257.94ILS 255.51 shippingFor 2003 GMC Sierra 3500 Neutral Safety Switch Connector AC Delco 12983XX (Fits: 2003 GMC Sierra 3500)
Brand New: ACDelcoILS 190.18ILS 253.50 shipping800-605 Dorman Transmission Line Connector Fits Chevy Tahoe Suburban 1500 GM NW
Brand New: DormanILS 49.54Trending at ILS 55.72eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.ILS 249.33 shippingShift Interlock Switch Connector SMP For 2001-2006 GMC Sierra 3500 (Fits: 2003 GMC Sierra 3500)
Brand New: Standard Motor ProductsILS 266.58ILS 240.17 shippingFor 94-2003 Chevrolet GMC 4L80E Transmission Internal Wire Harness 24222798 New (Fits: 2003 GMC Sierra 3500)
Brand NewILS 62.87or Best OfferILS 220.13 shippingFor 2001-2003 GMC Sierra 3500 Neutral Safety Switch Connector AC Delco 75536WF (Fits: 2003 GMC Sierra 3500)
Brand New: ACDelcoILS 329.41ILS 242.03 shippingTransmission Internal Wire Harness 24222798 Fits 1994-2003 Chevrolet GMC 4L80E (Fits: 2003 GMC Sierra 3500)
Brand New: UnbrandedILS 79.26or Best OfferILS 37.25 shippingAC Delco Neutral Safety Switch Connector fits GMC Sierra 3500 2001-2003 59NCRR (Fits: 2003 GMC Sierra 3500)
Brand New: ACDelco (OE)ILS 340.74ILS 242.37 shippingFor GMC Sierra 3500 Auto Trans Output Shaft Speed Sensor Connector SMP 87356KW (Fits: 2003 GMC Sierra 3500)
Brand New: Standard Motor ProductsILS 69.32ILS 249.93 shippingFor GMC Sierra 3500 Auto Trans Input Shaft Speed Sensor Connector SMP 43436WG (Fits: 2003 GMC Sierra 3500)
Brand New: Standard Motor ProductsILS 67.68ILS 249.89 shippingOE Spec Connector Vapor Canister Purge Solenoid CP469 Fits: GM Land Rover 99-05 (Fits: 2003 GMC Sierra 3500)
Brand NewILS 50.47or Best OfferILS 233.80 shippingAC Delco Neutral Safety Switch Connector fits GMC Sierra 3500 2003 95BVGC (Fits: 2003 GMC Sierra 3500)
Brand New: ACDelco (OE)ILS 203.33ILS 238.31 shippingOE Spec Connector of Vapor Canister Vent Solenoid CVS111 Fits:Chevrolt GMC 99-07 (Fits: 2003 GMC Sierra 3500)
Brand NewILS 51.51or Best OfferILS 233.84 shippingAutomatic Transmission Connector ACDelco GM Original Equipment PT1008 (Fits: 2003 GMC Sierra 3500)
Brand New: ACDelco (OE)ILS 315.63ILS 241.62 shippingOnly 1 left!For GMC Sierra 3500 Auto Trans Input Shaft Speed Sensor Connector SMP 36945WX (Fits: 2003 GMC Sierra 3500)
Brand New: Standard Motor ProductsILS 75.83ILS 250.11 shippingAC Delco Vehicle Speed Sensor Connector fits GMC Sierra 3500 2001-2006 43VNGV (Fits: 2003 GMC Sierra 3500)
Brand New: ACDelco (OE)ILS 192.64ILS 238.01 shippingPark / Neutral Position Switch Connector (Fits: 2003 GMC Sierra 3500)
Brand New: ACDelco (OE)ILS 279.95ILS 270.23 shippingFor GMC Sierra 3500 Auto Trans Output Shaft Speed Sensor Connector SMP 39683XN (Fits: 2003 GMC Sierra 3500)
Brand New: Standard Motor ProductsILS 77.44ILS 250.19 shippingFor GMC Sierra 3500 Four Wheel Drive Indicator Lamp Switch Connector SMP 71941JN (Fits: 2003 GMC Sierra 3500)
2003-2006 2004 2005Brand New: Standard Motor ProductsILS 127.31ILS 236.07 shippingNeutral Safety Switch Connector fits GMC Sierra 3500 2001-2004 99SGMC (Fits: 2003 GMC Sierra 3500)
Brand New: Standard Motor ProductsILS 156.29ILS 236.93 shipping800-605 Dorman Transmission Line Connector for Chevy Express Van S10 Pickup (Fits: 2003 GMC Sierra 3500)
Brand New: DormanILS 49.09Trending at ILS 55.72eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.ILS 233.76 shippingAuto Trans Input Shaft Speed Sensor Connector fits Sierra 3500 2001-2006 83XTKF (Fits: 2003 GMC Sierra 3500)
Brand New: ACDelco (OE)ILS 189.70ILS 237.90 shippingFor Sierra 3500 Auto Trans Input Shaft Speed Sensor Connector AC Delco 58796RZ (Fits: 2003 GMC Sierra 3500)
Brand New: ACDelcoILS 179.42ILS 237.60 shippingTransmission Internal Wire Harness For 1994-02 2003 Chevrolet GMC 4L80E 3500032 (Fits: 2003 GMC Sierra 3500)
Brand NewILS 62.17or Best OfferILS 220.13 shippingFor 1999-2003 Transmission Wiring Harness 1000/2000 Allison 5 SPEED GM/DURAMAX (Fits: 2003 GMC Sierra 3500)
Brand NewILS 215.66or Best OfferILS 408.15 shipping