Exhaust Manifold Kit, 6.0L - Left Side

Part Number: 57-380

Price: $180.72

In Stock, Ready to Ship!

Left Exhaust Manifold Kit - 6.0 Liter Engines. Includes required gaskets and Hardware - Drivers Side

Application Summary: Chevrolet 03-2007, GMC 03-2007, Isuzu 03-2007, Workhorse 04-2007, Workhorse Custom Chassis 04-2007

Product Description

More like a kit than a single part, many of our Exhaust Manifolds include gaskets and downpipe hardware for easier installation. Since this part is a direct replacement, the exact fit adds another layer of efficiency and convenience.

  • Heat-shield may be included for protection of engine components where applicable
  • Cast iron or stainless tubular construction protects against warping or cracking
  • Leak-resistant for long-lasting performance
  • A rigorous quality inspection has been undertaken to ensure product standards

Detailed Applications

2007ChevroletW3500 TiltmasterV8 364 6.0L (5967cc); GASLeft
2007ChevroletW4500 TiltmasterV8 364 6.0L (5967cc); GASLeft
2007GMCW3500 ForwardV8 364 6.0L (5967cc); GASLeft
2007GMCW4500 ForwardV8 364 6.0L (5967cc); GASLeft
2007IsuzuNPRV8 364 6.0L (5967cc); GASLeft
2007IsuzuNPR-HDV8 364 6.0L (5967cc); GASLeft
2007WorkhorseW16V8 364 6.0L (5967cc); GASLeft
2007WorkhorseW18V8 364 6.0L (5967cc); GASLeft
2007WorkhorseW42V8 364 6.0L (5967cc); GASLeft
2007WorkhorseW62V8 364 6.0L (5967cc); GASLeft
2007Workhorse Custom ChassisW42V8 365 6.0L (5972cc); GASLeft
2006ChevroletW3500 TiltmasterV8 364 6.0L (5967cc); GASLeft
2006ChevroletW4500 TiltmasterV8 364 6.0L (5967cc); GASLeft
2006GMCW3500 ForwardV8 364 6.0L (5967cc); GASLeft
2006GMCW4500 ForwardV8 364 6.0L (5967cc); GASLeft
2006IsuzuNPRV8 364 6.0L (5967cc); GASLeft
2006IsuzuNPR-HDV8 364 6.0L (5967cc); GASLeft
2006WorkhorseW16V8 364 6.0L (5967cc); GASLeft
2006WorkhorseW18V8 364 6.0L (5967cc); GASLeft
2006WorkhorseW42V8 364 6.0L (5967cc); GASLeft
2006WorkhorseW62V8 364 6.0L (5967cc); GASLeft
2006Workhorse Custom ChassisW42V8 365 6.0L (5972cc); GASLeft
2005ChevroletW3500 TiltmasterV8 364 6.0L (5967cc); GASLeft
2005ChevroletW4500 TiltmasterV8 364 6.0L (5967cc); GASLeft
2005GMCW3500 ForwardV8 364 6.0L (5967cc); GASLeft
2005GMCW4500 ForwardV8 364 6.0L (5967cc); GASLeft
2005IsuzuNPRV8 364 6.0L (5967cc); GASLeft
2005IsuzuNPR-HDV8 364 6.0L (5967cc); GASLeft
2005WorkhorseFasTrack FT1461V8 364 6.0L (5967cc); GASLeft
2005WorkhorseFasTrack FT1801V8 364 6.0L (5967cc); GASLeft
2005Workhorse Custom ChassisP42V8 365 6.0L (5972cc); GASLeft
2004ChevroletW3500 TiltmasterV8 364 6.0L (5967cc); GASLeft
2004ChevroletW4500 TiltmasterV8 364 6.0L (5967cc); GASLeft
2004GMCW3500 ForwardV8 364 6.0L (5967cc); GASLeft
2004GMCW4500 ForwardV8 364 6.0L (5967cc); GASLeft
2004IsuzuNPRV8 364 6.0L (5967cc); GASLeft
2004IsuzuNPR-HDV8 364 6.0L (5967cc); GASLeft
2004WorkhorseFasTrack FT1461V8 364 6.0L (5967cc); GASLeft
2004WorkhorseFasTrack FT1801V8 364 6.0L (5967cc); GASLeft
2004Workhorse Custom ChassisP42V8 365 6.0L (5972cc); GASLeft
2003ChevroletW3500 TiltmasterV8 364 6.0L (5967cc); GASLeft
2003ChevroletW4500 TiltmasterV8 364 6.0L (5967cc); GASLeft
2003GMCW4500 ForwardV8 364 6.0L (5967cc); GASLeft
2003IsuzuNPRV8 364 6.0L (5967cc); GASLeft

Product Specifications

Color/Finish: Natural
Exhaust Manifold Inlet Port Shape: Round
Flange Bolt Hole Quantity: 0
Flange Stud Hole Quantity: 3
Gasket or Seal Included: Yes
Heat Shield Included: Yes
Installation Hardware Included: Yes
Item Grade: Standard Replacement
Manifold Bolt Hole Quantity: 6
Material: Cast Iron
Package Contents: Exhaust Manifold, 1 Manifold Gasket, 3 Studs, 3 Nuts
Package Quantity: 1
Packaging Type: Box

- Left Side

OEM Numbers:
  • 12570671
  • 12603737
  • 8-12570-671-0
  • 8125706710
  • 8-12603-737-0
  • 8126037370

Estimated Shipping Dimensions: 18" x 11" x 6"

Weight: 15.70 lbs


Mill Supply has been the #1 supplier of step van parts for over 30 years. If you have a Workhorse, Utilimaster, Morgan Olson or other type of walk-in van you have landed on the right page. You will not find a more complete listing of parts for stepvans anywhere! With research and development on-the-go, new products are constantly being added to keep up with the growing industry. You can count on great customer service, fast shipping, and discount prices when you shop with us. It doesn't matter if you use your truck on-the-job, for deliveries, or run a food truck, you can count on Mill Supply to keep your vehicle in top shape. If you have any questions don't hesitate to either contact us via email or give us a call at 800-888-5072 between 8:00 a.m. - 5:00 p.m. E.S.T. and one of our experienced representatives will be happy to help you.

Mon-Fri 8AM - 5PM EDT
Copyright ©2019 Mill Supply, Inc.
Mill Supply, Inc. 19801 Miles Rd. Cleveland, OH 44128