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Looking for aftermarket parts to modify or upgrade your 2003 Isuzu Ascender 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 21044NTK 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 Buick Rainier 2005-2004 Direct Fit Oxygen Sensor 2003-2003 Isuzu Ascender Base / Limited 2003-2005 Isuzu Ascender LS $69.19 |
 OUT OF STOCK 21048NTK 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 Buick Allure 2007-2005 Direct Fit Oxygen Sensor 2003-2003 Isuzu Ascender Base 2003-2005 Isuzu Ascender Limited / LS $70.62 |
 OUT OF STOCK 21049NTK 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 Astro 2005-2003 Direct Fit Oxygen Sensor 2003-2003 Isuzu Ascender Base / Limited / LS $74.89 |
 OUT OF STOCK 21516NTK 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 Astro 2002-2000 Direct Fit Oxygen Sensor 2003-2003 Isuzu Ascender Base 2003-2004 Isuzu Ascender Limited / LS $78.87 |