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2007 GMC Sierra 2500 HD Classic
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2007 GMC Sierra 2500 HD Classic

2007 GMC Sierra 2500 HD Classic Exhaust Manifolds

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Exhaust Manifold, 8 Cyl., 8.1L Engine, Enginedesignationname : L18, without A.I.R
Replacement
Exhaust Manifold, 8 Cyl., 8.1L Engine, Enginedesignationname : L18, without A.I.R
Part Number: REPC960708
Guaranteed to Fit
$46.48
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 8.1L enginedesignationname : L18; Without A.I.R.
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 8.1L enginedesignationname : L18; Without A.I.R.
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 8.1L enginedesignationname : L18; Without A.I.R.
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 8.1L enginedesignationname : L18; Without A.I.R.
Product Details
Location : Passenger SideNotes : With wrap around heat shield; Cast IronEmissions : 50-State LegalQuantity Sold : Sold individuallyWarranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Deals : OverstockInterchange Part Number : 674728, 101376, 663223, 12557286, 12580303, 12601751, 24056704530728236, 34485119201191135Replaces OE Number : 101376, 663223, 12557286, 12580303, 12601751, 24056704530728236, 34485119201191135Returns Policy : 30-Day Return Policy
Exhaust Manifold, 8 Cyl., 6.0L Engine
Davico®
Exhaust Manifold, 8 Cyl., 6.0L Engine
Part Number: DAV663227
Guaranteed to Fit
$93.49
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 6.0L
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 6.0L
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 6.0L
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 6.0L
Product Details
Location : Passenger SideNotes : 13 in. W x 5.1 in. H; 23.2 in. Inlet GasketIncludes : GasketEmissions : 46-State Legal (Cannot ship to CA, CO, NY or ME)Quantity Sold : Sold individuallyWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 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.

Series : Exact Fit Series
Exhaust Manifold, 8 Cyl., 6.0L Engine, without Ceramic Coating
Dorman®
Exhaust Manifold, 8 Cyl., 6.0L Engine, without Ceramic Coating
Part Number: RB674522
Guaranteed to Fit
$111.99
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 6.0L Without Ceramic Coating
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 6.0L Without Ceramic Coating
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 6.0L Without Ceramic Coating
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 6.0L Without Ceramic Coating
Product Details
Location : Driver SideNotes : Cast iron materialIncludes : Three studs, three nuts, and one manifold gasketEmissions : 50-State LegalQuantity Sold : KitWarranty : Lifetime Dorman limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Nickel, 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.

Series : OE Solutions SeriesInterchange Part Number : REPC960702, 101261, 663017, 12556078, 12562235, 12562330, 12564155, 12571678, 12602037, 12610962, 12616285, 12686303Replaces OE Number : 101261, 663017, 12556078, 12562235, 12562330, 12564155, 12571678, 12602037, 12610962, 12616285, 12686303
Exhaust Manifold, 8 Cyl., 8.1/6.0/6.6L Engine - Driver and Passenger Side
Dorman®
Exhaust Manifold, 8 Cyl., 8.1/6.0/6.6L Engine - Driver and Passenger Side
Part Number: SET-RB674732
Guaranteed to Fit
$267.99
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 8.1L
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 6.0L
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 8.1L
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 6.0L
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 6.0L
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 8.1L
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 8.1L
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 6.0L
Product Details
Location : Driver and Passenger SideNotes : Set Components - (2) Exhaust Manifold KitQuantity Sold : Set of 2Warranty : Lifetime Dorman limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Nickel, 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 : C960707, 674525, 101371, 663227, 12569416, 12569530, 12578341, 12602038, 12612084, 12616286, 12647717, 12648339, 12677665, 12686302, REPC960702, 101261, 663017, 12556078, 12562235, 12562330, 12564155, 12571678, 12602037, 12610962, 12616285, 12686303Replaces OE Number : 101261, 663017, 12556078, 12562235, 12562330, 12564155, 12571678, 12602037, 12610962, 12616285, 12686303, 101371, 663227, 12569416, 12569530, 12578341, 12602038, 12612084, 12616286, 12647717, 12648339, 12677665, 12686302
Exhaust Manifold, 8 Cyl., 8.1L Engine
Dorman®
Exhaust Manifold, 8 Cyl., 8.1L Engine
Part Number: SET-RB674729
Guaranteed to Fit
$888.99
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 8.1L
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 8.1L
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 8.1L
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 8.1L
Product Details
Location : Driver And Passenger SideNotes : Set Components - (2) Exhaust Manifold Kit; Cast iron materialEmissions : 50-State LegalQuantity Sold : Set of 2Warranty : Lifetime Dorman limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Nickel, 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 : REPC960708, 101376, 663223, 12557286, 12580303, 12601751, 24056704530728236, 34485119201191135, REPC960709, 101377, 663224, 12555621, 12557287Replaces OE Number : 101376, 663223, 12557286, 12580303, 12601751, 24056704530728236, 34485119201191135, 101377, 663224, 12555621, 12557287
Exhaust Manifold
AC Delco®
Exhaust Manifold
Part Number: AC12616285
Guaranteed to Fit
$159.49
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic All Submodels All Engines
Product Details
Location : Driver SideEmissions : 46-State Legal (Cannot ship to CA, CO, NY or ME)Quantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 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.

Series : GM Original Equipment Series
Exhaust Manifold
AC Delco®
Exhaust Manifold
Part Number: AC12616286
Guaranteed to Fit
$263.49
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic All Submodels All Engines
Product Details
Location : Passenger SideEmissions : 46-State Legal (Cannot ship to CA, CO, NY or ME)Quantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 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.

Series : GM Original Equipment Series
Exhaust Manifold, 8 Cyl., 6.6L Engine
Davico®
Exhaust Manifold, 8 Cyl., 6.6L Engine
Part Number: DAV663231
Guaranteed to Fit
$67.99
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 6.6L
Product Details
Location : Passenger SideEmissions : 46-State Legal (Cannot ship to CA, CO, NY or ME)Quantity Sold : Sold individuallyWarranty : 1-year Davico limited warrantyProp 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.

Series : Exact-Fit Series
Exhaust Manifold, 8 Cyl., 6.6L Engine, DIESEL, Rear Wheel Drive/DIESEL
ATP®
Exhaust Manifold, 8 Cyl., 6.6L Engine, DIESEL, Rear Wheel Drive/DIESEL
Part Number: ATP101721
Guaranteed to Fit
$201.99
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 6.6L DIESEL, RWD
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 6.6L DIESEL, RWD
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 6.6L DIESEL, RWD
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 6.6L DIESEL, RWD
Product Details
Location : Driver SideEmissions : 46-State Legal (Cannot ship to CA, CO, NY or ME)Quantity Sold : Sold individuallyWarranty : Lifetime ATP Graywerks limited warrantyProp 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.

Exhaust Manifold, 8 Cyl., 6.6L Engine
BD Diesel®
Exhaust Manifold, 8 Cyl., 6.6L Engine
Part Number: B701041460
Guaranteed to Fit
$190.95
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 6.6L
Product Details
Location : Driver SideEmissions : 50-State LegalQuantity Sold : Sold individuallyWarranty : 36-months or 75,000 miles DB Diesel limited warrantyProp 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.

Series : OE Replacement Series
Exhaust Manifold, 8 Cyl., 6.6L Engine, DIESEL
ATP®
Exhaust Manifold, 8 Cyl., 6.6L Engine, DIESEL
Part Number: ATP101401
Guaranteed to Fit
$365.99
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 6.6L DIESEL
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 6.6L DIESEL
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 6.6L DIESEL
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 6.6L DIESEL
Product Details
Location : Passenger SideIncludes : Manifold GasketEmissions : 46-State Legal (Cannot ship to CA, CO, NY or ME)Quantity Sold : Sold individuallyWarranty : Lifetime ATP Graywerks limited warrantyProp 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.

Exhaust Manifold, 8 Cyl., 6.6L Engine
AC Delco®
Exhaust Manifold, 8 Cyl., 6.6L Engine
Part Number: AC12624683
Guaranteed to Fit
$369.99
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 6.6L
Product Details
Location : Passenger SideEmissions : 46-State Legal (Cannot ship to CA, CO, NY or ME)Quantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 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.

Series : GM Original Equipment Series
Exhaust Manifold, 8 Cyl., 8.1L Engine, with Air Pump, Does Not Include Block-Off Plate
ATP®
Exhaust Manifold, 8 Cyl., 8.1L Engine, with Air Pump, Does Not Include Block-Off Plate
Part Number: ATP101377
Guaranteed to Fit
$483.49
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 8.1L With Air Pump; Does Not Include Block-Off Plate
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 8.1L With Air Pump; Does Not Include Block-Off Plate
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 8.1L With Air Pump; Does Not Include Block-Off Plate
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 8.1L With Air Pump; Does Not Include Block-Off Plate
Product Details
Location : Driver SideIncludes : Manifold GasketEmissions : 46-State Legal (Cannot ship to CA, CO, NY or ME)Quantity Sold : Sold individuallyWarranty : Lifetime ATP Graywerks limited warrantyProp 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.

Exhaust Manifold, 8 Cyl., 6.6L Engine
Davico®
Exhaust Manifold, 8 Cyl., 6.6L Engine
Part Number: DAV663226
Guaranteed to Fit
$67.99
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 6.6L
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 6.6L
Product Details
Location : Driver SideEmissions : 46-State Legal (Cannot ship to CA, CO, NY or ME)Quantity Sold : Sold individuallyWarranty : 1-year Davico limited warrantyProp 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.

Series : Exact-Fit Series
Exhaust Manifold, 8 Cyl., 8.1L Engine
Davico®
Exhaust Manifold, 8 Cyl., 8.1L Engine
Part Number: DAV663224
Guaranteed to Fit
$64.49
Vehicle Fitment
  • 2007 GMC Sierra 2500 HD Classic SLT 8 Cyl 8.1L
  • 2007 GMC Sierra 2500 HD Classic WT 8 Cyl 8.1L
  • 2007 GMC Sierra 2500 HD Classic SLE 8 Cyl 8.1L
  • 2007 GMC Sierra 2500 HD Classic SL 8 Cyl 8.1L
Product Details
Location : Driver SideNotes : 9.85 in. W x 8.7 in. H; 25.2 in. Inlet GasketIncludes : GasketEmissions : 46-State Legal (Cannot ship to CA, CO, NY or ME)Quantity Sold : Sold individuallyWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 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.

Series : Exact Fit Series
Page 1 of 2 | Showing 1 - 15 of 26 results

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Davico Exhaust Manifold, 8 Cyl., 6.0L Engine
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Perfect fit, fixed all O2 sensors codes, easy to install. Truck runs super quite now.See More
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Dorman Exhaust Manifold, 8 Cyl., 6.0L Engine, without Ceramic Coating
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I liked everything about This product! Came with everything i needed with and very eaSee More
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Helpful Automotive Resources

P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3Bank 1 is the side of the engine where the #1 cylinder is located. P0042 code is set when your car’s PCM determines a potential problem with the heater element circuit of the oxygen sensor.
P0058 Code: HO2S Heater Control Circuit High (Bank 2, Sensor 2)
P0058 Code: HO2S Heater Control Circuit High (Bank 2, Sensor 2)Many oxygen sensors also have a heating element that helps bring the sensor up to operating temperature quicker. These sensors need the heating element because they produce more accurate readings when brought up to a certain temperature. Once the sensors are up to operating temperature, they send exhaust oxygen data
P0080 Code: Exhaust Valve Control Solenoid Circuit High Bank 1
P0080 Code: Exhaust Valve Control Solenoid Circuit High Bank 1On vehicles equipped with variable valve timing (VVT), the PCM can adjust the camshaft position, altering the timing of the exhaust and/or intake valves. The PCM controls the camshaft position by regulating oil flow (via a solenoid) to the actuator(s) mounted on the end of the camshaft(s).
P0411 Code: Secondary Air Injection Incorrect Flow Detected
P0411 Code: Secondary Air Injection Incorrect Flow DetectedAs was mentioned, the secondary air injection system reduces emissions by introducing fresh air into the exhaust system. Older vehicles have a belt-driven air pump while newer models have an electric pump. Code P0411 may get registered when the amount of air entering the exhaust is not what the powertrain