BRAND NEW DURAMAX LB7 GLOW PLUG / AIR INTAKE HEATER RELAY ASSEMBLY FITS 2001 - 2004.5 LB7 Chevy / GMC Duramax Diesel (2500, 3500, 4500, 5500, Topkick and Kodiak) NOTE: Fits Federal Emissions (RPO Code NF2) Trucks ONLY - will not fit trucks with California Emissions package. We also stock Premium USA-Made Dual Coil glow plugs, Glow Plug buss bars, and glow plug kits to get your LB7 starting like new again! If a delay occurs that is longer than would normally be considered commercially acceptable, we will attempt to contact you. Please take a moment to read it. Local auto parts stores will not pay your travel costs to return a part either.Applications We guarantee our parts to be as described by part number, picture, and verbiage. While we do our best, vehicle applications, however, simply cannot be guaranteed. In most cases, we do not generate application lists. It is the nature of the auto parts business that, in rare cases, a part will not be correct for a certain vehicle even though it "should" fit. This may occur because of errors on application lists, mid-year production changes, changes to the vehicle since it was built, the fact that a car was not built for the US market, etc. If a part does not fit your vehicle, this does not mean the part is not as described. Problems can be solved much more easily when civility is kept intact. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Ignition Systems & Components\Glow Plugs". The seller is "accuratediesel" and is located in this country: US. This item can be shipped worldwide.