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Guaranteed to Fit2003 GMC W4500 Forward Change Vehicle

Dorman®
2003 GMC W4500 Forward - Exhaust Manifold, 8 Cyl., 6.0L Engine, GAS, with Ceramic Coating

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$206.49
$508.70Save: $302.21(59%)
Manufacturer #674-859XD
Guaranteed to Fit2003 GMC W4500 Forward Change Vehicle
Qty:
1

Your Vehicle Fit Details

Vehicle Name
Submodel
Engine
Fitment Information
2003 GMC W4500 Forward
W4S042
8 Cyl 6.0L
GAS; With Ceramic Coating

Highlights

Brand:
Location:
Driver Side
Emissions:
46-State Legal (Cannot ship to CA, CO, NY or ME)
Quantity Sold:
Sold individually
Warranty:
Lifetime Dorman limited warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number:
12570671, 12603737, 8125706710, 8126037370
Replaces OE Number:
12570671, 12603737, 8125706710, 8126037370
Series:
OE Solutions Series
Fitnotes:
GAS; With Ceramic Coating

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
2003-2007 Chevrolet W3500 Tiltmaster
W3S042
8 Cyl 6.0L
GAS; With Ceramic Coating
2003-2007 Chevrolet W4500 Tiltmaster
W4S042
8 Cyl 6.0L
GAS; With Ceramic Coating
2003-2007 GMC W4500 Forward
W4S042
8 Cyl 6.0L
GAS; With Ceramic Coating
2003-2007 Isuzu NPR
Base
8 Cyl 6.0L
GAS; With Ceramic Coating
2003-2007 Isuzu NPR-HD
Base
8 Cyl 6.0L
GAS; With Ceramic Coating
Page 1 of 2 | Showing 1 - 5 of 6 results

Product Information

DORMAN OE REPLACEMENT EXHAUST MANIFOLD

Swap out your warped exhaust manifold with one of these OE replacement exhaust manifolds from Dorman. Their heavy-duty design is resistant to leaks and corrosion, and their secure fit ensures all gases are safely routed through your exhaust system.

  • Anti-leak protection
  • Manufactured with cast iron or stainless tubular steel
  • Comes with gaskets and hardware needed for assembly (check application)
  • Durable materials resist warping, cracking and leaking for long-lasting performance

Since 1918, Dorman Products has supplied the automotive aftermarket with high-quality replacement parts, hardware and fasteners.

Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

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