Select Your Vehicle
2003 GMC Sierra 1500 Base
-
Original price $62.11Original price$62.11$62.11Current price $62.112003 GMC Sierra 1500 Base Rear Driver Side Bumper Step Pad Fleetside - GM1191120
Fitment: 1999-2004 Chevrolet Silverado 2501999-2004 GMC Sierra 2501999-2006 Chevrolet Silverado 1501999-2006 GMC Sierra 1502007 Chevrolet Silverado 1500 Classic, 2007 GMC Sierra 1500 ClassicIn stockThe Chevrolet Silverado 1500/1500 Classic/2500/GMC Sierra 1500/Sierra 1500 Classic/Sierra 2500 Rear Driver Side Bumper Step Pad part number GM119...
View full detailsOriginal price $62.11Original price$62.11$62.11Current price $62.11 -
Original price $79.04Original price$79.04$79.04Current price $79.042003 GMC Sierra 1500 Base Rear Passenger Side Bumper Step Pad Fleetside - GM1191119
Fitment: 1999-2004 Chevrolet Silverado 2501999-2004 GMC Sierra 2501999-2006 Chevrolet Silverado 1501999-2006 GMC Sierra 1502007 Chevrolet Silverado 1500 Classic, 2007 GMC Sierra 1500 ClassicIn stockThe Chevrolet Silverado 1500/1500 Classic/2500/GMC Sierra 1500/Sierra 1500 Classic/Sierra 2500 Rear Passenger Side Bumper Step Pad part number GM...
View full detailsOriginal price $79.04Original price$79.04$79.04Current price $79.04 -
Original price $37.75Original price$37.75$37.75Current price $37.752003 GMC Sierra 1500 Base Hood Latch W/O Remote Locks - GM1234105
Fitment: 1999-2002 Chevrolet Silverado 1500 Base, 1999-2006 GMC Sierra 1500 SLE, 1999-2006 GMC Sierra 1500 SLT, 2000-2006 Cadillac Escalade, 2000-2006 Chevrolet Suburban 1502000-2006 Chevrolet Suburban 2502000-2006 Chevrolet Tahoe, 2000-2006 GMC Yukon, 2000-2006 GMC Yukon XL 1502002 Chevrolet Silverado 1500 WT, 2002-2003 Oldsmobile Bravada, 2002-2005 GMC Sierra 1500 Base, 2002-2006 Cadillac Escalade EXT, 2002-2006 GMC Sierra 1500 WT, 2007 GMC Sierra 1500 Classic SLE, 2007 GMC Sierra 1500 Classic SLT, 2007 GMC Sierra 1500 Classic WT, 2007-2009 Saturn AuraIn stockThe Cadillac Escalade/Escalade EXT/Chevrolet Silverado 1500/Suburban 1500/Suburban 2500/Tahoe Base/WT/GMC Sierra 1500/Sierra 1500 Classic/Yukon/Y...
View full detailsOriginal price $37.75Original price$37.75$37.75Current price $37.75 -
Original price $176.38Original price$176.38$176.38Current price $176.38
2003 GMC Sierra 1500 Base Rear Passenger Side Bumper Support Base - GM1163104
Out of stockThe Chevrolet/GMC Sierra Bumper Support/Sierra Bumper Support Classic/Sierra 2500/Sierra 2500 HD/Sierra 2500 HD Classic/Sierra 3500/Sierra 3500 C...
View full detailsOriginal price $176.38Original price$176.38$176.38Current price $176.38Sold out -
Original price $167.16Original price$167.16$167.16Current price $167.162003 GMC Sierra 1500 Base Radiator 4.3L V6 - GM3010281
Fitment: 1999-2002 Chevrolet Silverado 1501999-2004 GMC Sierra 1502003-2004 Chevrolet Silverado 1500 Base, 2003-2004 Chevrolet Silverado 1500 LS, 2003-2004 Chevrolet Silverado 1500 LT, 2003-2004 Chevrolet Silverado 1500 WT, 2004 Chevrolet Silverado 1500 Z71In stockThe Chevrolet Silverado 1500 Base/LS/LT/WT/Z71/GMC Sierra 1500 Radiator 4.3L V6 part number GM3010281 is a compatible replacement for model years...
View full detailsOriginal price $167.16Original price$167.16$167.16Current price $167.16 -
Original price $159.22Original price$159.22$159.22Current price $159.22
2003 GMC Sierra 1500 Base Rear Driver Side Bumper Support Base - GM1162104
Out of stockThe Chevrolet/GMC Sierra Bumper Support/Sierra Bumper Support Classic/Sierra 2500/Sierra 2500 HD/Sierra 2500 HD Classic/Sierra 3500/Sierra 3500 C...
View full detailsOriginal price $159.22Original price$159.22$159.22Current price $159.22Sold out -
Original price $268.50Original price$268.50$268.50Current price $268.50
2003 GMC Sierra 1500 Base Driver Side Radiator Support - GM1225233
Fitment: 1999-2006 Chevrolet Silverado 1501999-2006 GMC Sierra 1502000-2006 Chevrolet Suburban 1502000-2006 Chevrolet Suburban 2502000-2006 GMC Yukon XL 1502000-2006 GMC Yukon XL 2502002-2006 Cadillac Escalade, 2002-2006 Chevrolet Tahoe, 2002-2006 GMC Yukon, 2007 Chevrolet Silverado 1500 Classic, 2007 GMC Sierra 1500 ClassicOut of stockThe Cadillac Escalade/Chevrolet Silverado 1500/Silverado 1500 Classic/Suburban 1500/Suburban 2500/Tahoe/GMC Sierra 1500/Sierra 1500 Classic/Yukon...
View full detailsOriginal price $268.50Original price$268.50$268.50Current price $268.50Sold out -
Original price $268.50Original price$268.50$268.50Current price $268.50
2003 GMC Sierra 1500 Base Passenger Side Radiator Support - GM1225232
Fitment: 1999-2006 Chevrolet Silverado 1501999-2006 GMC Sierra 1502000-2006 Chevrolet Suburban 1502000-2006 Chevrolet Suburban 2502000-2006 GMC Yukon XL 1502000-2006 GMC Yukon XL 2502002-2006 Cadillac Escalade, 2002-2006 Chevrolet Tahoe, 2002-2006 GMC Yukon, 2007 Chevrolet Silverado 1500 Classic, 2007 GMC Sierra 1500 ClassicOut of stockThe Cadillac Escalade/Chevrolet Silverado 1500/Silverado 1500 Classic/Suburban 1500/Suburban 2500/Tahoe/GMC Sierra 1500/Sierra 1500 Classic/Yukon...
View full detailsOriginal price $268.50Original price$268.50$268.50Current price $268.50Sold out -
Original price $158.56Original price$158.56$158.56Current price $158.562003 GMC Sierra 1500 Base Radiator 4.8L V8/5.3L V8/6.2L V8/6L V8 - GM3010275
Fitment: 2000-2006 Chevrolet Suburban 2502000-2006 GMC Yukon, 2000-2014 Chevrolet Suburban 1502000-2014 GMC Yukon XL 1502001-2004 Chevrolet Tahoe, 2002-2006 Chevrolet Avalanche 1502004-2013 Chevrolet Silverado 1500 LS, 2004-2013 GMC Sierra 1500 SLE, 2005 Chevrolet Silverado 1500 Base, 2005-2013 Chevrolet Silverado 1500 LT, 2005-2013 GMC Sierra 1500 SLT, 2005-2013 GMC Sierra 1500 WT, 2006-2013 Chevrolet Silverado 1500 WT, 2006-2013 GMC Sierra 1500 SL, 2007 Chevrolet Silverado 1500 Classic WT, 2007 GMC Sierra 1500 Classic SL, 2007 GMC Sierra 1500 Classic SLE, 2007 GMC Sierra 1500 Classic SLT, 2007 GMC Sierra 1500 Classic WT, 2007-2008 Chevrolet Silverado 1502007-2008 GMC Sierra 1502009-2013 Chevrolet Silverado 1500 LTZ, 2009-2013 GMC Sierra 1500 Denali, 2010-2013 Chevrolet Silverado 1500 XFE, 2010-2013 GMC Sierra 1500 XFEIn stockThe Chevrolet Avalanche 1500/Silverado 1500/Silverado 1500 Classic/Suburban 1500/Suburban 2500/Tahoe Base/LS/LT/LTZ/WT/XFE/WT/GMC Sierra 1500/Sie...
View full detailsOriginal price $158.56Original price$158.56$158.56Current price $158.56 -
Original price $78.38Original price$78.38$78.38Current price $78.382003 GMC Sierra 1500 Base Radiator Outlet Tank 1St Design Mech. Cooling (05-06) Reservoir Only - GM3014123
Fitment: 1999-2006 Chevrolet Silverado 1500, 1999-2006 GMC Sierra 1500, 2000-2004 Cadillac Escalade, 2000-2004 Chevrolet Tahoe, 2000-2004 GMC Yukon, 2000-2006 Chevrolet Suburban 1500, 2000-2006 Chevrolet Suburban 2500, 2000-2006 GMC Yukon XL 1500, 2002-2006 Chevrolet Avalanche 1500, 2002-2006 Chevrolet Avalanche 2500, 2002-2007 Cadillac Escalade EXT, 2003 Hummer H2, 2007 Chevrolet Silverado 1500 Classic, 2007 GMC Sierra 1500 ClassicIn stockThe Radiator Outlet Tank 1St Design Mech. Cooling (05-06) Reservoir Only part number GM3014123 is a compatible replacement for model years 1999, ...
View full detailsOriginal price $78.38Original price$78.38$78.38Current price $78.38 -
Original price $54.01Original price$54.01$54.01Current price $54.01
2003 GMC Sierra 1500 Base Interior Door Handle C3 - GM1353141
Out of stockThe GMC Sierra Interior Door Handle/Sierra Interior Door Handle Classic/Yukon/Yukon XL Interior Door Handle 13115 C3 part number GM1353141 is a c...
View full detailsOriginal price $54.01Original price$54.01$54.01Current price $54.01Sold out -
Original price $214.09Original price$214.09$214.09Current price $214.092003 GMC Sierra 1500 Base Radiator Support Support Assembly Aluminum 4.3L V6/4.8L V8/5.3L V8 - GM1225222
Fitment: 2003-2005 Cadillac Escalade, 2003-2005 Cadillac Escalade ESV, 2003-2005 Cadillac Escalade EXT, 2003-2005 Chevrolet Avalanche 1502003-2005 Chevrolet Avalanche 2502003-2005 Chevrolet Suburban 1502003-2005 Chevrolet Suburban 2502003-2005 Chevrolet Tahoe, 2003-2005 GMC Yukon, 2003-2005 GMC Yukon XL 1502003-2006 Chevrolet Silverado 1500 Base, 2003-2006 Chevrolet Silverado 1500 LS, 2003-2006 Chevrolet Silverado 1500 LT, 2003-2006 Chevrolet Silverado 1500 WTIn stockThe Cadillac Escalade/Escalade ESV/Escalade EXT/Chevrolet Avalanche 1500/Avalanche 2500/Silverado 1500/Suburban 1500/Suburban 2500/Tahoe Base/LS/...
View full detailsOriginal price $214.09Original price$214.09$214.09Current price $214.09 -
Original price $95.89Original price$95.89$95.89Current price $95.892003 GMC Sierra 1500 Base Rear Driver Side Bumper Step Pad Stepside - GM1191136
Fitment: 1999-2005 Chevrolet Silverado 1500 Base, 1999-2006 Chevrolet Silverado 1500 LS, 1999-2006 Chevrolet Silverado 1500 LT, 1999-2006 GMC Sierra 1502004-2006 Chevrolet Silverado 1500 Hybrid, 2007 Chevrolet Silverado 1500 Classic LS, 2007 Chevrolet Silverado 1500 Classic LT, 2007 GMC Sierra 1500 ClassicIn stockThe Chevrolet Silverado 1500/1500 Classic Base/Hybrid/LS/LT/LS/LT/GMC Sierra 1500/Sierra 1500 Classic Rear Driver Side Bumper Step Pad part numbe...
View full detailsOriginal price $95.89Original price$95.89$95.89Current price $95.89 -
Original price $87.10Original price$87.10$87.10Current price $87.10
2003 GMC Sierra 1500 Base Rear Passenger Side Bumper Step Pad Stepside - GM1191137
Fitment: 1999-2005 Chevrolet Silverado 1500 Base, 1999-2006 Chevrolet Silverado 1500 LS, 1999-2006 Chevrolet Silverado 1500 LT, 1999-2006 GMC Sierra 1502004-2006 Chevrolet Silverado 1500 Hybrid, 2007 Chevrolet Silverado 1500 Classic LS, 2007 Chevrolet Silverado 1500 Classic LT, 2007 GMC Sierra 1500 ClassicOut of stockThe Chevrolet Silverado 1500/1500 Classic Base/Hybrid/LS/LT/LS/LT/GMC Sierra 1500/Sierra 1500 Classic Rear Passenger Side Bumper Step Pad part nu...
View full detailsOriginal price $87.10Original price$87.10$87.10Current price $87.10Sold out -
Original price $55.31Original price$55.31$55.31Current price $55.312003 GMC Sierra 1500 Base HVAC Heater Assembly - GM3126130
Fitment: 2003-2006 Cadillac Escalade EXT, 2003-2006 Chevrolet Avalanche 1500, 2003-2006 Chevrolet Avalanche 2500, 2003-2006 Chevrolet Silverado 1500, 2003-2006 GMC Sierra 1500, 2003-2007 Hummer H2, 2007 Chevrolet Silverado 1500 Classic, 2007 GMC Sierra 1500 ClassicIn stockThe HVAC Heater Assembly part number GM3126130 is a compatible replacement for model years 2003, 2004, 2005, 2006, 2007. This HVAC Heater Assembl...
View full detailsOriginal price $55.31Original price$55.31$55.31Current price $55.31 -
Original price $35.99Original price$35.99$35.99Current price $35.99
2003 Passenger Side Tailgate Check Cable - GM1921102
Fitment: 1999-2006 Chevrolet Silverado 1500, 1999-2006 Chevrolet Silverado 2500, 1999-2006 GMC Sierra 1500, 1999-2006 GMC Sierra 2500, 2001-2006 Chevrolet Silverado 3500, 2001-2006 GMC Sierra 3500, 2002-2006 Cadillac Escalade EXT, 2002-2006 Chevrolet Avalanche 1500, 2002-2006 Chevrolet Avalanche 2500, 2005-2007 Hummer H2, 2007 Chevrolet Silverado 1500 Classic, 2007 Chevrolet Silverado 2500 Classic, 2007 Chevrolet Silverado 3500 Classic, 2007 GMC Sierra 1500 Classic, 2007 GMC Sierra 2500 Classic, 2007 GMC Sierra 3500 ClassicOut of stockThe Passenger Side Tailgate Check Cable part number GM1921102 is a compatible replacement for model years 1999, 2000, 2001, 2002, 2003, 2004, 200...
View full detailsOriginal price $35.99Original price$35.99$35.99Current price $35.99Sold out -
Original price $31.17Original price$31.17$31.17Current price $31.172003 GMC Sierra 1500 Base Front Passenger Side Bumper to Body Filler Panel Outer - GM1089170
Fitment: 1999-2006 GMC Sierra 1500, 2000-2006 GMC Yukon, 2000-2006 GMC Yukon XL 1500, 2007 GMC Sierra 1500 ClassicIn stockThe GMC Sierra 1500/1500 Classic/Yukon/Yukon XL 1500 Front Passenger Side Bumper to Body Filler Panel Outer part number GM1089170 is a compatible...
View full detailsOriginal price $31.17Original price$31.17$31.17Current price $31.17 -
Original price $36.30Original price$36.30$36.30Current price $36.302003 GMC Sierra 1500 Front Passenger Side Interior Door Handle Bright Inside - GM1353131
Fitment: 2002-2006 GMC Sierra 1500In stockThe GMC Sierra 1500 Front Passenger Side Interior Door Handle Bright Inside part number GM1353131 is a compatible replacement for model years 200...
View full detailsOriginal price $36.30Original price$36.30$36.30Current price $36.30 -
Original price $35.98Original price$35.98$35.98Current price $35.982003 GMC Sierra 1500 Base Front Driver Side Interior Door Handle Bright Inside - GM1352131
Fitment: 2002-2006 GMC Sierra 1500In stockThe GMC Sierra 1500 Front Driver Side Interior Door Handle Bright Inside part number GM1352131 is a compatible replacement for model years 2002, ...
View full detailsOriginal price $35.98Original price$35.98$35.98Current price $35.98 -
Original price $31.87Original price$31.87$31.87Current price $31.872003 GMC Sierra 1500 Base Front Driver Side Bumper to Body Filler Panel Outer - GM1088170
Fitment: 1999-2006 GMC Sierra 1500, 2000-2006 GMC Yukon, 2000-2006 GMC Yukon XL 1500, 2007 GMC Sierra 1500 ClassicIn stockThe GMC Sierra 1500/1500 Classic/Yukon/Yukon XL 1500 Front Driver Side Bumper to Body Filler Panel Outer part number GM1088170 is a compatible re...
View full detailsOriginal price $31.87Original price$31.87$31.87Current price $31.87 -
Original price $36.94Original price$36.94$36.94Current price $36.942003 GMC Sierra 1500 Base Headlight Mounting Panel Headlamp Housing Support Right Side Except Denali - GM1221133
Fitment: 2003-2006 GMC Sierra 1500, 2007 GMC Sierra 1500 ClassicIn stockThe GMC Sierra 1500/1500 Classic Headlight Mounting Panel Headlamp Housing Support Right Side part number GM1221133 is a compatible replacement f...
View full detailsOriginal price $36.94Original price$36.94$36.94Current price $36.94 -
Original price $33.38Original price$33.38$33.38Current price $33.382003 GMC Sierra 1500 Base Headlight Mounting Panel Headlamp Housing Support Left Side Except Denali - GM1221132
Fitment: 2003-2006 GMC Sierra 1500, 2007 GMC Sierra 1500 ClassicIn stockThe GMC Sierra 1500/1500 Classic Headlight Mounting Panel Headlamp Housing Support Left Side part number GM1221132 is a compatible replacement fo...
View full detailsOriginal price $33.38Original price$33.38$33.38Current price $33.38 -
Original price $41.93Original price$41.93$41.93Current price $41.932003 GMC Sierra 1500 Base Front Bumper to Body Filler Panel Center Top Pad - GM1087243
Fitment: 2003-2005 GMC Sierra 1500 Base, 2003-2006 GMC Sierra 1500 SL, 2003-2006 GMC Sierra 1500 SLE, 2003-2006 GMC Sierra 1500 SLT, 2003-2006 GMC Sierra 1500 WT, 2005-2006 GMC Sierra 1500 Hybrid, 2007 GMC Sierra 1500 Classic Hybrid, 2007 GMC Sierra 1500 Classic SL, 2007 GMC Sierra 1500 Classic SLE, 2007 GMC Sierra 1500 Classic SLT, 2007 GMC Sierra 1500 Classic WTIn stockThe GMC Sierra 1500/1500 Classic Base/Hybrid/SL/SLE/SLT/WT/Hybrid/SL/SLE/SLT/WT Front Bumper to Body Filler Panel Center Top Pad part number GM10...
View full detailsOriginal price $41.93Original price$41.93$41.93Current price $41.93 -
Original price $50.16Original price$50.16$50.16Current price $50.162003 GMC Sierra 1500 Base Front Bumper Reinforcement Except C3 And Denali - GM1025104
Fitment: 2003-2006 GMC Sierra 1500, 2007 GMC Sierra 1500 ClassicIn stockThe GMC Sierra 1500/1500 Classic Front Bumper Reinforcement part number GM1025104 is a compatible replacement for model years 2003, 2004, 2005, 2...
View full detailsOriginal price $50.16Original price$50.16$50.16Current price $50.16
2003 GMC Sierra 1500 Base
Shop the best selection of replacement auto parts for your 2003 GMC Sierra 1500 Base Base. We offer precision-fit bumpers, hoods, grilles, fender liners, & more. All designed exclusively for your vehicle’s submodel. With our painted-to-match service, every part receives an expert factory-quality finish, perfectly matching your Sierra 1500. Enjoy fast turnaround, reliable fitment, and lasting durability—upgrade your 2003 GMC Sierra 1500 Base Base with parts trusted by auto body professionals.