Dorman Exhaust Manifolds

4.33 out of 5 stars 514 Customer Reviews

Dorman exhaust manifolds offer a reliable, direct-fit installation for your vehicle. Manufactured from high-quality materials, they provide the perfect replacements for your worn-out factory piece. Dorman lends a hand in maintaining the exhaust manifold on your daily driver by providing the right fit at the right price--no longer are these "dealer only" parts. Get what you need--think Dorman for your replacement exhaust manifolds.

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Dorman Exhaust Manifolds 674-522

Exhaust Manifold, Cadillac, Chevy, GMC, Hummer, Pickup, SUV, Van, 4.8, 5.3, 6.0L, Driver Side, Each

Part Number: RNB-674-522

4.62 out of 5 stars ( 21 )

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Dorman Exhaust Manifolds 674-217

Exhaust Manifold, Cadillac, Chevy, GMC, Pickup, SUV, Van, 5.0, 5.7L, Passenger Side, Each

Part Number: RNB-674-217

3.64 out of 5 stars ( 14 )

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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 )

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Dorman Exhaust Manifolds 674-391

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

Part Number: RNB-674-391

5.0 out of 5 stars ( 3 )

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Dorman Exhaust Manifolds 674-218

Exhaust Manifold, Cadillac, Chevy, GMC, Pickup, SUV, Van, 5.0, 5.7L, Driver Side, Each

Part Number: RNB-674-218

4.17 out of 5 stars ( 6 )

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Dorman Exhaust Manifolds for 1999-2002 RAM 2500, RAM 3500 - 674-602

Exhaust Manifold, OEM Replacement, Cast Iron, Dodge, Ram Pickup, 5.9L, Diesel, Each

Part Number: RNB-674-602

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Dorman Exhaust Manifolds 674-470

Exhaust Manifold, Cast Iron, Natural, Chevy, GMC, 6.2, 6.5L, Driver Side, Each

Part Number: RNB-674-470

4.5 out of 5 stars ( 2 )

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Dorman Exhaust Manifolds 674-271

Exhaust Manifold, OEM Replacement, Cast Iron, Natural, Dodge, 5.2, 5.9L, Driver Side, Each

Part Number: RNB-674-271

5.0 out of 5 stars ( 2 )

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Dorman Exhaust Manifolds 674-525

Exhaust Manifold, Cadillac, Chevy, GMC, Hummer, Pickup, SUV, Van, 4.8, 5.3, 6.0L, Passenger Side, Each

Part Number: RNB-674-525

4.38 out of 5 stars ( 8 )

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Dorman Exhaust Manifolds 674-225

Exhaust Manifold, AMC, Dodge, Jeep, 2.5L, Each

Part Number: RNB-674-225

3.5 out of 5 stars ( 6 )

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Dorman Exhaust Manifolds for 1996-2000 4RUNNER, 1994-1998 T100, 1995-2001 TACOMA - 674-464

Exhaust Manifold, OEM Replacement, Cast Iron, Toyota, 2.4, 2.7L, Each

Part Number: RNB-674-464

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Dorman Exhaust Manifolds for 1998-2001 EXPLORER, MOUNTAINEER - 674-329

Exhaust Manifold, Cast Iron, Natural, Ford, Mercury, SUV, 5.0L, Passenger Side, Each

Part Number: RNB-674-329

5.0 out of 5 stars ( 4 )

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Dorman Exhaust Manifolds for 1998-2001 EXPLORER, MOUNTAINEER - 674-334

Exhaust Manifold, Cast Iron, Natural, Ford, Mercury, SUV, 5.0L, Driver Side, Each

Part Number: RNB-674-334

5.0 out of 5 stars ( 5 )

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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: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Dorman Exhaust Manifolds 674-909

Exhaust Manifold, OEM Replacement, Cast Iron, Chrysler, Dodge, Mitsubishi, Each

Part Number: RNB-674-909

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Dorman Exhaust Manifolds 674-745

Exhaust Manifold, Cast Iron, Passenger Side, Ford, 7.3L, Diesel, Each

Part Number: RNB-674-745

Not Yet Reviewed

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Dorman Exhaust Manifolds 674-783

Exhaust Manifold, Cast Iron, Ford, 6.8L, V-10, Driver Side, Each

Part Number: RNB-674-783

Not Yet Reviewed

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Dorman Exhaust Manifolds 674-782

Exhaust Manifold, Cast Iron, Ford, 6.8L, V-10, Passenger Side, Each

Part Number: RNB-674-782

Not Yet Reviewed

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Dorman Exhaust Manifolds for 1999-2004 MUSTANG - 674-536

Exhaust Manifold, OEM Replacement, Steel, Ford, 3.8L, Passenger Side, Each

Part Number: RNB-674-536

4.6 out of 5 stars ( 5 )

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Dorman Exhaust Manifolds 674-5006

Exhaust Manifold, Passenger Side, Cast Iron, Natural, International, 7.6L Diesel, Each

Part Number: RNB-674-5006

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Dorman Exhaust Manifolds 674-559XD

Exhaust Manifold, Dorman, Ceramic Coated, Exhaust Manifold, Cast Iron, 4.5 mm Thick Wall, Gasket and Hardware included, Ford, Lincoln, 5.4L, Kit

Part Number: RNB-674-559XD

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Dorman Exhaust Manifolds 674-540

Exhaust Manifold, Front, Cast Iron, Natural, Buick, Chevy, Oldsmobile, Pontiac, 3.8L, Each

Part Number: RNB-674-540

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

Dorman Exhaust Manifolds 674-541

Exhaust Manifold, Rear, Steel, Natural, Buick, Chevy, Oldsmobile, Pontiac, 3.8L, Each

Part Number: RNB-674-541

Not Yet Reviewed

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Dorman Exhaust Manifolds 674-806

Exhaust Manifold, Cast Iron, Natural, Each

Part Number: RNB-674-806

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Dorman Exhaust Manifolds 674-446

Exhaust Manifold, OEM Replacement, Cast Iron, Chevy, GMC, 5.0, 5.7L, Passenger Side, Each

Part Number: RNB-674-446

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 30, 2026 if ordered today

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Estimated Ship Date: Jan 30, 2026 if ordered today

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