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1991 GMC K2500
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1991 GMC K2500

1991 GMC K2500 Exhaust Manifolds

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Exhaust Manifold, 8 Cyl., 5.0/5.7L Engine
Dorman®
Exhaust Manifold, 8 Cyl., 5.0/5.7L Engine
Part Number: SET-RB674157
Guaranteed to Fit
$208.99
Vehicle Fitment
  • 1991 GMC K2500 Sierra 8 Cyl 5.7L
  • 1991 GMC K2500 Sierra SLX 8 Cyl 5.7L
  • 1991 GMC K2500 Sierra SLE 8 Cyl 5.0L
  • 1991 GMC K2500 Sierra 8 Cyl 5.0L
  • 1991 GMC K2500 Sierra SLE 8 Cyl 5.7L
  • 1991 GMC K2500 Sierra SLX 8 Cyl 5.0L
Product Details
Location : Driver And Passenger SideNotes : Set Components - (2) Exhaust Manifold; 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 : G960725, 101064, 651147, 662652, 10045315, SK674157, 674157, G960726, 101063, 651146, 662651, 14093658, 14102016, SK674156, 674156Replaces OE Number : 101063, 651146, 662651, 14093658, 14102016, SK674156, 674156, 101064, 651147, 662652, 10045315, SK674157, 674157
Exhaust Manifold, 8 Cyl., 7.4L Engine
Dorman®
Exhaust Manifold, 8 Cyl., 7.4L Engine
Part Number: SET-RB674268
Guaranteed to Fit
$215.49
Vehicle Fitment
  • 1991 GMC K2500 Sierra SLE 8 Cyl 7.4L
  • 1991 GMC K2500 Sierra SLX 8 Cyl 7.4L
  • 1991 GMC K2500 Sierra 8 Cyl 7.4L
Product Details
Location : Driver And Passenger SideNotes : Set Components - (2) Exhaust Manifold; 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 : C960701, 674391, 101130, 10045731, 12551445, 14103135, SK674267, G960730, 674161, 101132, 662763, 10223342, 12523197, SK674268Replaces OE Number : 101130, 10045731, 12551445, 14103135, SK674267, 101132, 662763, 10223342, 12523197, SK674268
Exhaust Manifold, 8 Cyl., 6.2L Engine
Dorman®
Exhaust Manifold, 8 Cyl., 6.2L Engine
Part Number: RB674470
Guaranteed to Fit
$133.99
Vehicle Fitment
  • 1991 GMC K2500 Sierra 8 Cyl 6.2L
  • 1991 GMC K2500 Sierra SLE 8 Cyl 6.2L
  • 1991 GMC K2500 Sierra SLX 8 Cyl 6.2L
Product Details
Location : Driver SideNotes : 3 Bolt holes; Oval exhaust manifold inlet port shape; Left exhaust manifold compatibility; Cast Iron MaterialIncludes : (1) manifold gasket, (1) flange gasket, (3) studs, (3) nuts, (3) springs, and installation hardware(s)Emissions : 50-State LegalQuantity Sold : Sold individuallyWarranty : 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 : 12557359Replaces OE Number : 12557359
Exhaust Manifold, 6 Cyl., 4.3L Engine
Dorman®
Exhaust Manifold, 6 Cyl., 4.3L Engine
Part Number: SET-RB674214
Guaranteed to Fit
$308.68
Vehicle Fitment
  • 1991 GMC K2500 Sierra 6 Cyl 4.3L
  • 1991 GMC K2500 Sierra SLE 6 Cyl 4.3L
  • 1991 GMC K2500 Sierra SLX 6 Cyl 4.3L
Product Details
Location : Driver And Passenger SideNotes : Set Components - (2) Exhaust Manifold Kit; Cast iron materialIncludes : Three studs, three nuts, three springs, heat shield, and one flange gasketEmissions : 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 : G960723, 101091, 10045321, SK674214, G960724, 674516, 101090, 14102164, SK674213, 674213Replaces OE Number : 101090, 14102164, SK674213, 674213, 101091, 10045321, SK674214
Exhaust Manifold, 8 Cyl., 7.4L Engine
ATP®
Exhaust Manifold, 8 Cyl., 7.4L Engine
Part Number: ATP101130
Guaranteed to Fit
$102.49
Vehicle Fitment
  • 1991 GMC K2500 Sierra SLE 8 Cyl 7.4L
  • 1991 GMC K2500 Sierra SLX 8 Cyl 7.4L
  • 1991 GMC K2500 Sierra 8 Cyl 7.4L
Product Details
Location : Driver SideIncludes : Manifold and Flange 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, 6 Cyl., 4.3L Engine
Davico®
Exhaust Manifold, 6 Cyl., 4.3L Engine
Part Number: DAV662708
Guaranteed to Fit
$101.49
Vehicle Fitment
  • 1991 GMC K2500 Sierra 6 Cyl 4.3L
  • 1991 GMC K2500 Sierra SLE 6 Cyl 4.3L
  • 1991 GMC K2500 Sierra SLX 6 Cyl 4.3L
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., 7.4L Engine
Davico®
Exhaust Manifold, 8 Cyl., 7.4L Engine
Part Number: DAV662762
Guaranteed to Fit
$62.99
Vehicle Fitment
  • 1991 GMC K2500 Sierra SLE 8 Cyl 7.4L
  • 1991 GMC K2500 Sierra SLX 8 Cyl 7.4L
  • 1991 GMC K2500 Sierra 8 Cyl 7.4L
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 : OE Replacement Series
Exhaust Manifold, 8 Cyl., 7.4L Engine
Davico®
Exhaust Manifold, 8 Cyl., 7.4L Engine
Part Number: DAV662763
Guaranteed to Fit
$73.99
Vehicle Fitment
  • 1991 GMC K2500 Sierra SLE 8 Cyl 7.4L
  • 1991 GMC K2500 Sierra SLX 8 Cyl 7.4L
  • 1991 GMC K2500 Sierra 8 Cyl 7.4L
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., 7.4L Engine
Dorman®
Exhaust Manifold, 8 Cyl., 7.4L Engine
Part Number: RB674268
Guaranteed to Fit
$113.49
Vehicle Fitment
  • 1991 GMC K2500 Sierra SLE 8 Cyl 7.4L
  • 1991 GMC K2500 Sierra SLX 8 Cyl 7.4L
  • 1991 GMC K2500 Sierra 8 Cyl 7.4L
Product Details
Location : Passenger SideNotes : Cast iron materialIncludes : Three studs, three nuts, three springs, one manifold gasket, and two flange gasketsEmissions : 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 : G960730, 674161, 101132, 662763, 10223342, 12523197, SK674268Replaces OE Number : 101132, 662763, 10223342, 12523197, SK674268
Exhaust Manifold, 6 Cyl., 4.3L Engine
Dorman®
Exhaust Manifold, 6 Cyl., 4.3L Engine
Part Number: RB674213
Guaranteed to Fit
$144.49
Vehicle Fitment
  • 1991 GMC K2500 Sierra 6 Cyl 4.3L
  • 1991 GMC K2500 Sierra SLE 6 Cyl 4.3L
  • 1991 GMC K2500 Sierra SLX 6 Cyl 4.3L
Product Details
Location : Passenger SideNotes : Cast iron materialIncludes : Three studs, three nuts, three springs, heat shield, and one flange 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 : G960724, 674516, 101090, 14102164, SK674213, 674213Replaces OE Number : 101090, 14102164, SK674213, 674213
Exhaust Manifold, 8 Cyl., 7.4L Engine
Dorman®
Exhaust Manifold, 8 Cyl., 7.4L Engine
Part Number: RB674267
Guaranteed to Fit
$113.49
Vehicle Fitment
  • 1991 GMC K2500 Sierra SLE 8 Cyl 7.4L
  • 1991 GMC K2500 Sierra SLX 8 Cyl 7.4L
  • 1991 GMC K2500 Sierra 8 Cyl 7.4L
Product Details
Location : Driver SideNotes : Cast iron materialIncludes : Three studs, three nuts, three springs, heat shield, one manifold gasket, and two flange gasketsEmissions : 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 : C960701, 674391, 101130, 10045731, 12551445, 14103135, SK674267Replaces OE Number : 101130, 10045731, 12551445, 14103135, SK674267
Exhaust Manifold, 8 Cyl., 5.0/5.7L Engine
Dorman®
Exhaust Manifold, 8 Cyl., 5.0/5.7L Engine
Part Number: RB674157
Guaranteed to Fit
$108.99
Vehicle Fitment
  • 1991 GMC K2500 Sierra 8 Cyl 5.7L
  • 1991 GMC K2500 Sierra SLX 8 Cyl 5.7L
  • 1991 GMC K2500 Sierra SLE 8 Cyl 5.0L
  • 1991 GMC K2500 Sierra 8 Cyl 5.0L
  • 1991 GMC K2500 Sierra SLE 8 Cyl 5.7L
  • 1991 GMC K2500 Sierra SLX 8 Cyl 5.0L
Product Details
Location : Driver SideNotes : Cast iron materialIncludes : Three studs, three nuts, three springs, heat shield, and one flange 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 : G960725, 101064, 651147, 662652, 10045315, SK674157, 674157Replaces OE Number : 101064, 651147, 662652, 10045315, SK674157, 674157
Exhaust Manifold, 6 Cyl., 4.3L Engine
Dorman®
Exhaust Manifold, 6 Cyl., 4.3L Engine
Part Number: RB674214
Guaranteed to Fit
$164.99
Vehicle Fitment
  • 1991 GMC K2500 Sierra 6 Cyl 4.3L
  • 1991 GMC K2500 Sierra SLE 6 Cyl 4.3L
  • 1991 GMC K2500 Sierra SLX 6 Cyl 4.3L
Product Details
Location : Driver SideNotes : Cast iron materialIncludes : Three studs, three nuts, three springs, heat shield, and one flange 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 : G960723, 101091, 10045321, SK674214Replaces OE Number : 101091, 10045321, SK674214
Exhaust Manifold, 8 Cyl., 5.0/5.7L Engine
Dorman®
Exhaust Manifold, 8 Cyl., 5.0/5.7L Engine
Part Number: RB674156
Guaranteed to Fit
$110.99
Vehicle Fitment
  • 1991 GMC K2500 Sierra 8 Cyl 5.7L
  • 1991 GMC K2500 Sierra SLX 8 Cyl 5.7L
  • 1991 GMC K2500 Sierra SLE 8 Cyl 5.0L
  • 1991 GMC K2500 Sierra 8 Cyl 5.0L
  • 1991 GMC K2500 Sierra SLE 8 Cyl 5.7L
  • 1991 GMC K2500 Sierra SLX 8 Cyl 5.0L
Product Details
Location : Passenger SideNotes : Cast iron materialIncludes : Three studs, three nuts, three springs, and one flange 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 : G960726, 101063, 651146, 662651, 14093658, 14102016, SK674156, 674156Replaces OE Number : 101063, 651146, 662651, 14093658, 14102016, SK674156, 674156
Ram's Horn Series Exhaust Manifold, 46-State Legal (Cannot ship to CA, CO, NY or ME)
Flowtech®
Ram's Horn Series Exhaust Manifold, 46-State Legal (Cannot ship to CA, CO, NY or ME)
Part Number: F31117041FLT
Universal Fit
$534.95
Product Details
Notes : Cast iron materialIncludes : One Manifold GasketEmissions : 46-State Legal (Cannot ship to CA, CO, NY or ME)Quantity Sold : Set of 2Warranty : 90-day Flowtech 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 : Ram's Horn SeriesRecommended Use : Performance ReplacementProduct Fit : Universal
Page 1 of 2 | Showing 1 - 15 of 17 results

Top Rated Products

Dorman Exhaust Manifold, 8 Cyl., 7.4L Engine
$215.49( Review)
Worked out great
Brandon M.
VERIFIED PURCHASER

Popular Products

Product Questions & Answers

Flowtech Ram's Horn Series Exhaust Manifold, 46-State Legal (Cannot ship to CA, CO, NY or ME)
$534.95
Q:Fit a 2016 Ford Focus se?
Ayden T.
A:BEST ANSWERHi Ayden, I'm pleased to assist you. This is a universal kit not a direct fit for the 2016 Ford Focus SE. We do not have the compatible exhaust manifold compatible with the vehicle. You may want to consider purchasing heavy-duty cleaning industrial-strength wipes, good to have around your home and garage. Click on the link below to see and order while supplies last. You'll get a 30-day post-purchase price match guarantee with your order. I hope this helps. Enjoy shopping at Carparts.com! https://www.carparts.com/hand-cleaner/tub-o-towels/tubtw40?can=CPGG4850_20220524 Show less
Grace G.
 
3 Questions, 1 AnswerView all Q&As >

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