Dorman 674-858XD Black Exhaust Manifold sku-561489048

Dorman 674-858XD is a Black passenger-side exhaust manifold in Exhaust Parts & Emissions Parts. SKU: sku-561489048. UPC: 889245622167. Its ceramic coating is designed to improve durability and performance on select vehicles. By distributing heat evenly, the coating reduces hot and cold spots that can cause cracks and limits the uneven expansion and contraction that can lead to gasket failures.

The coated interior is designed to smooth the manifold surface, retain heat and increase exhaust velocity. The corrosion-resistant coating also helps maintain the manifold's appearance. It fits Chevrolet W3500 Tiltmaster and W4500 Tiltmaster, Isuzu NPR and NPR-HD in 2003, 2004, 2005, 2006 and 2007; GMC W3500 Forward in 2004, 2005, 2006 and 2007; and GMC W4500 Forward in 2003, 2004, 2005, 2006 and 2007.

It also fits Workhorse Custom Chassis P42 and Workhorse FasTrack FT1461 and FT1801 in 2004 and 2005; Workhorse Custom Chassis W42 and Workhorse W16, W18, W42 and W62 in 2006 and 2007.