How do you remove and install the exhaust manifold in 4.3L V6 and 5.0L,5.7L,7.4L V8 engine on Chevrolet Express?

To remove the exhaust manifold, first disconnect the cable from the negative terminal of the battery and remove the engine cover. Raise the vehicle and support it securely on jackstands. Apply penetrating oil to the exhaust pipe-to-manifold studs and nuts, then remove the nuts retaining the exhaust pipe(s) to the manifold, accessing them from underneath the vehicle; on some models, it may be easier to remove the wheel and fender splash shield. For the right side manifold, remove the air filter housing, then the Secondary AIR bypass hoses and valves if equipped. Detach the spark plug wires and remove the plug wire retaining bracket, positioning the wires out of the way. Remove the oil dipstick and unbolt the dipstick tube bracket. On 2014 and earlier models, removing the inner splash shield from the fenderwell can provide easier access to the exhaust manifold. Bend the lock tabs back if equipped, then remove the mounting bolts and separate the exhaust manifold from the cylinder head, followed by removing the heat shields. For the left side manifold, remove the Secondary AIR injection pipe and the EGR pipe if equipped, then repeat the process of detaching the spark plug wires and removing the plug wire retaining bracket. Disconnect the electrical connector from the Engine Coolant Temperature sensor, bend the lock tabs back if equipped, and remove the mounting bolts to separate the exhaust manifold from the cylinder head, also removing the heat shields. For installation, check the manifold for cracks and ensure the bolt threads are clean and undamaged, making sure the mating surfaces are clean before reinstalling. Position the manifold on a bench to install the heat shields, bolts, and gaskets, then place the manifold on the cylinder head and install the mounting bolts finger tight. When tightening the mounting bolts, work from the center to the ends using a torque wrench, tightening in two steps. If equipped, bend the locking tabs back against the bolt heads. The remaining installation steps follow the reverse order of removal, and finally, start the engine to check for exhaust leaks.

Genuine Chevrolet Express Exhaust Manifold

Engine Exhaust Manifold

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36 Exhaust Manifolds found

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Chevrolet Express Engine Exhaust Manifold
Part Number: 12616285
$93.16 MSRP: $167.37
You Save: $74.21 (45%)
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Product Specifications
- Other Name: Manifold,Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold, Manifold
- Replaces: 12602037, 12562235, 12571678, 12564155
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2017 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON CARGO SAVANA, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 1/2 TON CARGO EXPRESS, 1/2 TON CARGO SAVANA, 1/2 TON PASSENGER EXPRESS, 1/2 TON PASSENGER SAVANA, 3/4 TON CARGO EXPRESS, 3/4 TON CARGO SAVANA, 3/4 TON PASSENGER EXPRESS, 3/4 TON PASSENGER SAVANA | 8 Cyl 4.8L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex
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Chevrolet Express Engine Exhaust Manifold
Part Number: 12624683
$308.26 MSRP: $459.86
You Save: $151.60 (33%)
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Product Specifications
- Other Name: Manifold, Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold
- Replaces: 97224586
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2016 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON CARGO SAVANA, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON CARGO SAVANA, 3/4 TON PASSENGER EXPRESS, 3/4 TON PASSENGER SAVANA | 8 Cyl 6.6L Diesel
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Chevrolet Express Engine Exhaust Manifold
Part Number: 12616286
$207.38 MSRP: $327.82
You Save: $120.44 (37%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Manifold,Exhaust; Exhaust Manifold
- Replaces: 12602038, 12578341
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2013 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON CARGO SAVANA, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 1/2 TON CARGO EXPRESS, 1/2 TON CARGO SAVANA, 1/2 TON PASSENGER EXPRESS, 1/2 TON PASSENGER SAVANA, 3/4 TON CARGO EXPRESS, 3/4 TON CARGO SAVANA, 3/4 TON PASSENGER EXPRESS, 3/4 TON PASSENGER SAVANA | 8 Cyl 4.8L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex
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Chevrolet Express Engine Exhaust Manifold
Part Number: 12637647
$290.95 MSRP: $459.86
You Save: $168.91 (37%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON CARGO SAVANA, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON CARGO SAVANA, 3/4 TON PASSENGER EXPRESS, 3/4 TON PASSENGER SAVANA | 8 Cyl 6.6L Diesel
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Chevrolet Express Engine Exhaust Manifold
Part Number: 12550172
$158.49 MSRP: $250.48
You Save: $91.99 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2002 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RECREATIONAL VEHICLE EXPRESS, 1 TON PASSENGER, 1/2 TON CARGO EXPRESS, 1/2 TON PASSENGER EXPRESS, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 6 Cyl 4.3L
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Chevrolet Express Exhaust Manifold
Part Number: 12631812
$133.38 MSRP: $195.89
You Save: $62.51 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2020 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 6 Cyl 4.3L
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Chevrolet Express Engine Exhaust Manifold Assembly
Part Number: 12574320
$163.23 MSRP: $257.98
You Save: $94.75 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Assembly, Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2007 Chevrolet Express | 1/2 TON CARGO EXPRESS, 1/2 TON PASSENGER EXPRESS, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 6 Cyl 4.3L
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Chevrolet Express Exhaust Manifold Assembly
Part Number: 12686302
$478.04 MSRP: $791.22
You Save: $313.18 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Manifold Assembly, Exh; Exhaust Manifold
- Replaces: 12677663, 12612084, 12647717
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2020 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 8 Cyl 6.0L, 8 Cyl 6.0L Flex
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Chevrolet Express Exhaust Manifold Assembly
Part Number: 12677665
$208.79 MSRP: $330.01
You Save: $121.22 (37%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Assembly, Exhaust; Exhaust Manifold, Manifold
- Replaces: 12648339
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2017 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 1/2 TON CARGO EXPRESS, 1/2 TON PASSENGER EXPRESS, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 6.0L Flex
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Chevrolet Express Exhaust Manifold Assembly
Part Number: 12686303
$443.16 MSRP: $703.61
You Save: $260.45 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Assembly, Exh; Exhaust Manifold
- Replaces: 12610962
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2020 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 8 Cyl 6.0L, 8 Cyl 6.0L Flex
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Chevrolet Express Engine Exhaust Manifold Assembly
Part Number: 12592082
$178.33 MSRP: $246.00
You Save: $67.67 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Assembly, Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2014 Chevrolet Express | 1/2 TON CARGO EXPRESS, 1/2 TON CARGO SAVANA, 1/2 TON PASSENGER EXPRESS, 1/2 TON PASSENGER SAVANA | 6 Cyl 4.3L
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Chevrolet Express MANIFOLD-EXH
Part Number: 12701714
$210.98 MSRP: $333.39
You Save: $122.41 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Exhaust Manifold
- Replaces: 12690201
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS, Van 3/4 Ton Cargo Express | 8 Cyl 6.6L
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Chevrolet Express Exhaust Manifold
Part Number: 12631813
$133.38 MSRP: $197.42
You Save: $64.04 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Exhaust
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2020 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 6 Cyl 4.3L
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Chevrolet Express Engine Exhaust Manifold
Part Number: 10238373
$194.95 MSRP: $308.13
You Save: $113.18 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2002 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RECREATIONAL VEHICLE EXPRESS, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 8 Cyl 6.5L Diesel
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Chevrolet Express Engine Exhaust Manifold Assembly
Part Number: 12592083
$187.73 MSRP: $256.30
You Save: $68.57 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold Assembly, Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2014 Chevrolet Express | 1/2 TON CARGO EXPRESS, 1/2 TON CARGO SAVANA, 1/2 TON PASSENGER EXPRESS, 1/2 TON PASSENGER SAVANA | 6 Cyl 4.3L
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Chevrolet Express Manifold, Exh
Part Number: 12701715
$250.64 MSRP: $376.33
You Save: $125.69 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exhaust Manifold
- Replaces: 12690202
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS, Van 3/4 Ton Cargo Express | 8 Cyl 6.6L
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Chevrolet Express Manifold, Exh
Part Number: 12701716
$56.70 MSRP: $89.20
You Save: $32.50 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS, Van 3/4 Ton Cargo Express | 6 Cyl 4.3L
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Chevrolet Express Exhaust Manifold (Rh)
Part Number: 12668118
$75.81 MSRP: $119.26
You Save: $43.45 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Manifold, Exh (Rh); Exhaust Manifold
- Replaced by: 12701709
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS, Van 3/4 Ton Cargo Express | 6 Cyl 4.3L
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Chevrolet Express Engine Exhaust Manifold
Part Number: 10238374
$178.12 MSRP: $281.54
You Save: $103.42 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Exhaust ; Manifold, Engine Exhaust Manifold; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2002 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RECREATIONAL VEHICLE EXPRESS, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 8 Cyl 6.5L Diesel
View related parts
Chevrolet Express MANIFOLD ASM-EXH
Part Number: 24590266
$174.26 MSRP: $275.41
You Save: $101.15 (37%)
Product Specifications
- Replaces: 55592373
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2022 Chevrolet Express | 1 TON CARGO EXPRESS, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS | 4 Cyl 2.8L Diesel

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Chevrolet Express Exhaust Manifold

Each OEM Chevrolet Express Exhaust Manifold we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Express Exhaust Manifold Parts Questions & Experts Answers

Engine Exhaust Manifold
12550172
Q: How do you remove and install the exhaust manifold in 4.3L V6 and 5.0L,5.7L,7.4L V8 engine on Chevrolet Express?
A: To remove the exhaust manifold, first disconnect the cable from the negative terminal of the battery and remove the engine cover. Raise the vehicle and support it securely on jackstands. Apply penetrating oil to the exhaust pipe-to-manifold studs and nuts, then remove the nuts retaining the exhaust pipe(s) to the manifold, accessing them from underneath the vehicle; on some models, it may be easier to remove the wheel and fender splash shield. For the right side manifold, remove the air filter housing, then the Secondary AIR bypass hoses and valves if equipped. Detach the spark plug wires and remove the plug wire retaining bracket, positioning the wires out of the way. Remove the oil dipstick and unbolt the dipstick tube bracket. On 2014 and earlier models, removing the inner splash shield from the fenderwell can provide easier access to the exhaust manifold. Bend the lock tabs back if equipped, then remove the mounting bolts and separate the exhaust manifold from the Cylinder Head, followed by removing the heat shields. For the left side manifold, remove the Secondary AIR injection pipe and the EGR pipe if equipped, then repeat the process of detaching the spark plug wires and removing the plug wire retaining bracket. Disconnect the electrical connector from the Engine Coolant Temperature sensor, bend the lock tabs back if equipped, and remove the mounting bolts to separate the exhaust manifold from the cylinder head, also removing the heat shields. For installation, check the manifold for cracks and ensure the bolt threads are clean and undamaged, making sure the mating surfaces are clean before reinstalling. Position the manifold on a bench to install the heat shields, bolts, and gaskets, then place the manifold on the cylinder head and install the mounting bolts finger tight. When tightening the mounting bolts, work from the center to the ends using a torque wrench, tightening in two steps. If equipped, bend the locking tabs back against the bolt heads. The remaining installation steps follow the reverse order of removal, and finally, start the engine to check for exhaust leaks.