View our Specials! Coupon Code: SaveIn2026
Looking for aftermarket parts to modify or upgrade your 2003 GMC Sierra 3500 with oxygen sensors? At Tunersports.com we carry a huge selection of the top name brand performance oxygen sensor parts and accessories.
 OUT OF STOCK 21514NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop fee... NGK Cadillac DeVille 2005-2000 Direct Fit Oxygen Sensor 2002-2005 GMC Sierra 3500 Base 2002-2006 GMC Sierra 3500 SLE / SLT $99.68 |
 OUT OF STOCK 21548NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop fee... NGK Cadillac Escalade 2003 Direct Fit Oxygen Sensor 2002-2005 GMC Sierra 3500 Base 2002-2006 GMC Sierra 3500 SLE / SLT $96.01 |
 IN STOCK 21549NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop fee... NGK Chevrolet Avalanche 2500 2006-2003 Direct Fit Oxygen Sensor 2003-2005 GMC Sierra 3500 Base 2003-2006 GMC Sierra 3500 SLE / SLT $94.39 |
 OUT OF STOCK 21555NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop fee... NGK Chevrolet Avalanche 2500 2006-2003 Direct Fit Oxygen Sensor 2003-2005 GMC Sierra 3500 Base 2003-2006 GMC Sierra 3500 SLE / SLT $82.74 |