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GMC Dorman Exhaust Manifolds

Showing In Stock Items. Show All 15 Items.

Individual Parts

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Results 1 - 13 of 13

Dorman Exhaust Manifolds 674-278

Exhaust Manifold, Driver Side Only, Cast Iron, Natural, Chevy, GMC, 305, 350, Each

Part Number: RNB-674-278

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Dorman Exhaust Manifolds 674-390

Exhaust Manifold, OEM Replacement, Cast Iron, Chevy, GMC, Pickup, 7.4L, Passenger Side, Each

Part Number: RNB-674-390

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Dorman Exhaust Manifolds 674-729

Exhaust Manifold, OEM Replacement, Cast Iron, Chevy, GMC, Each

Part Number: RNB-674-729

Not Yet Reviewed

Estimated Ship Date: Feb 26, 2026 if ordered today

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Estimated Ship Date: Feb 26, 2026 if ordered today

Dorman Exhaust Manifolds 674-860

Exhaust Manifold, OEM Replacement, Cast Iron, Chevy, GMC, Each

Part Number: RNB-674-860

Not Yet Reviewed

Estimated Ship Date: Feb 26, 2026 if ordered today

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Estimated Ship Date: Feb 26, 2026 if ordered today

Dorman Exhaust Manifolds 674-428

Exhaust Manifold

Part Number: RNB-674-428

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

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Estimated Ship Date: Feb 25, 2026 if ordered today

Dorman Exhaust Manifolds 674-239

Exhaust Manifold, Chevy, GMC, 6.0, 7.0L, Passenger Side, Each

Part Number: RNB-674-239

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 25, 2026 if ordered today

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Estimated Ship Date: Feb 25, 2026 if ordered today

Dorman Exhaust Manifolds 674-785

Exhaust Manifold, OEM Replacement, Cast Iron, Buick, Chevrolet, GMC, Isuzu, Saab, Each

Part Number: RNB-674-785

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

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Estimated Ship Date: Feb 25, 2026 if ordered today

Dorman Exhaust Flange Hardware Kits 674-990

Exhaust Manifold, OEM Replacement, Cast Iron, Buick, Chevrolet, GMC, Isuzu, Saab, Each

Part Number: RNB-674-990

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

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Estimated Ship Date: Feb 25, 2026 if ordered today

Dorman Exhaust Manifolds 674-736

Exhaust Manifold, OEM Replacement, Cast Iron, Chevy, GMC, Each

Part Number: RNB-674-736

Not Yet Reviewed

Estimated Ship Date: Feb 26, 2026 if ordered today

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Estimated Ship Date: Feb 26, 2026 if ordered today

Dorman Exhaust Manifolds 674-738

Exhaust Manifold, Cast Iron, Natural, Each

Part Number: RNB-674-738

Not Yet Reviewed

Estimated Ship Date: Feb 26, 2026 if ordered today

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Estimated Ship Date: Feb 26, 2026 if ordered today

Dorman Exhaust Manifolds for 1994-1997 S10, SONOMA - 674-887

Exhaust Manifold, OEM Replacement, Cast Iron, Chevy, GMC, Each

Part Number: RNB-674-887

Not Yet Reviewed

Estimated Ship Date: Feb 26, 2026 if ordered today

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Estimated Ship Date: Feb 26, 2026 if ordered today

Dorman Exhaust Manifolds for 2000-2003 S10, SONOMA - 674-675

Exhaust Manifold, Chevy, GMC, Pickup, 2.2L, Gm 4-Cylinder, Each

Part Number: RNB-674-675

Not Yet Reviewed

Estimated Ship Date: Feb 26, 2026 if ordered today

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Estimated Ship Date: Feb 26, 2026 if ordered today

Dorman Exhaust Manifolds 674-5602

Exhaust Manifold, Cast Iron, Natural, Each

Part Number: RNB-674-5602

Not Yet Reviewed

Estimated Ship Date: Feb 26, 2026 if ordered today

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Estimated Ship Date: Feb 26, 2026 if ordered today

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