Dorman Exhaust Manifold Kit with Gaskets and Hardware for 2003‑96 Chevrolet, GMC, Isuzu & 2005‑00 Workhorse (Part 674‑860)
Dorman Exhaust Manifold Kit with Gaskets and Hardware for 2003‑96 Chevrolet, GMC, Isuzu & 2005‑00 Workhorse (Part 674‑860)
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17 in stock
Shipping & returns
Shipping details
In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
Read the shipping policyReturns
Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
Read the full return policyReturn details & how to start
Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.
Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.
Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.
After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.
Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.
For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
Specifications
Product details shared across all variants.
- Product type
- Exhaust Manifold
- Category
- Motor Vehicle Exhaust
- Item condition
- New
- Shipping dimensions (L × W × H)
- Shipping weight
- 10.8 lb
- Barcode
- 10019495289248
Billable shipping weight; may include dimensional weight.
Exhaust manifold kit for 2003-96 Chevrolet, GMC, Isuzu and 2005-00 Workhorse with gaskets and hardware.
Built to meet the manufacturer’s design intent for reliable service.
Key Features
- Includes required gaskets and downpipe hardware for a complete repair.
- Precision-engineered to match original manifold fit and function.
- Durable manufacturing ensures long-lasting performance.
- All necessary components included in the kit.
Benefits
- Provides a full replacement solution without missing parts.
- Saves time on installation by including all hardware.
- Ensures reliable exhaust flow and engine performance.
- Reduces risk of future repairs with durable construction.
Application
Ideal for owners of 2003-96 Chevrolet, GMC, Isuzu models and 2005-00 Workhorse vehicles needing a complete manifold replacement.
Fitment Notes
- Chevrolet 2003‑96
- GMC 2003‑96
- Isuzu 2003‑96
- Workhorse 2005‑00
- Workhorse Custom Chassis 2004‑00
Why Choose Dorman - OE Solutions?
- Choosing Dorman aftermarket replacement parts is a smart way to restore your vehicle with confidence, thanks to a strong focus on fit, durability, and dependable performance. Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function, helping ensure a smoother installation and reliable results. Built with quality materials and validated through testing, they’re made to stand up to daily driving demands and help reduce the risk of repeat repairs. For a long-lasting fix you can trust, Dorman delivers proven aftermarket solutions that keep your vehicle operating the way it should.
What’s in the Box
- Included items not specified by the manufacturer.
Item Dimensions
