ECM Modules
Repair or replacement ECM (engine control module) units for check engine lights, stalling, rough running, and no start conditions — programmed, bench-tested, and warranty-backed. Select your vehicle to find the exact part.
2003 GMC Jimmy 4.3L
Part #SKU10021348
$189.99$227.99
2003 GMC Safari 4.3L
Part #SKU10021349
$189.99$227.99
2003 GMC Sierra 1500 4.3L
Part #SKU10021350
$189.99$227.99
2003 GMC Sierra 1500 4.8L
Part #SKU10021351
$189.99$227.99
2003 GMC Sierra 1500 5.3L
Part #SKU10021352
$189.99$227.99
2003 GMC Sierra 1500 6.0L
Part #SKU10021353
$189.99$227.99
2003 GMC Sierra 1500HD 6.0L
Part #SKU10021354
$189.99$227.99
2003 GMC Sierra 2500 (non-HD) 5.3L
Part #SKU10021355
$189.99$227.99
2003 GMC Sierra 2500 (non-HD) 6.0L
Part #SKU10021356
$189.99$227.99
2003 GMC Sierra 2500HD 6.0L
Part #SKU10021357
$189.99$227.99
2003 GMC Sierra 2500HD 6.6L
Part #SKU10021358
$189.99$227.99
2003 GMC Sierra 2500HD 8.1L
Part #SKU10021359
$189.99$227.99
2003 GMC Sierra 3500HD 6.0L
Part #SKU10021360
$189.99$227.99
2003 GMC Sierra 3500HD 6.6L
Part #SKU10021361
$189.99$227.99
2003 GMC Sierra 3500HD 8.1L
Part #SKU10021362
$189.99$227.99
2003 GMC Sonoma 2.2L
Part #SKU10021363
$189.99$227.99
2003 GMC Sonoma 4.3L
Part #SKU10021364
$189.99$227.99
2003 GMC W-Series 3500-5500 GM gas 8-cyl
Part #SKU10021365
$189.99$227.99
2003 GMC W-Series 3500-5500 Isuzu 4-cyl Diesel (by year)
Part #SKU10021366
$189.99$227.99
2003 GMC Yukon 4.8L
Part #SKU10021367
$189.99$227.99