How to replace the left exhaust manifold on Chevrolet Express 2500?

Start the left Exhaust Manifold replacement process by removing the engine cover followed by disconnecting the engine coolant temperature (ECT) gage sensor electric wires. The installation process begins by lifting the car then removing the left wheel and fender wheelhouse extension part before taking out the Catalytic Converter assembly. Egr valve inlet pipe detachment from Exhaust Manifold must occur before you remove Spark Plug Wires while uninstalling their support bolts and their coupled Spark Plug wire support. Take out the spark plugs and the air pipe from the Exhaust Manifold then remove the Exhaust Manifold together with its gaskets and Spark Plug wire shields from beneath the vehicle. All gasket surfaces should be cleaned before installation. Attach the new gaskets with the Spark Plug wire shields and bolts to the Exhaust Manifold but maintain their positions through the gasket tabs. Proceed with installing the Exhaust Manifold and then connect the spark plugs followed by the Spark Plug Wires. Before reinstalling the Exhaust Manifold attach its air pipe then secure the Spark Plug wire support using bolts while tightening them to 12 nm (106 inch lbs.). The egr valve inlet pipe goes on the Exhaust Manifold followed by tightening its nut to 30 nm (22 ft. Lbs.) and continuing with the reinstallation of the Catalytic Converter assembly along with the fender wheelhouse extension and left front tire. The engine cover must be installed after properly connecting the ect gage sensor electrical connector and lowering the vehicle.

OEM Chevrolet Express 2500 Exhaust Manifold

Engine Exhaust Manifold

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29 Exhaust Manifolds found

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Chevrolet Express 2500 Exhaust Manifold, Driver Side Part Number: 12637647
$290.03 MSRP: $493.77
You Save: $203.74 (42%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016 Chevrolet Express 2500 | Base | 8 Cyl 6.6 L DIESEL
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Chevrolet Express 2500 Exhaust Manifold, Passenger Side Part Number: 12574320
$168.06 MSRP: $264.43
You Save: $96.37 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2006 Chevrolet Express 2500 | Base, LS | 6 Cyl 4.3 L GAS
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Chevrolet Express 2500 Exhaust Manifold, Driver Side Part Number: 12631812
$147.37 MSRP: $231.87
You Save: $84.50 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2020 Chevrolet Express 2500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
View related parts
Chevrolet Express 2500 Exhaust Manifold, Driver Side Part Number: 12616285
$131.69 MSRP: $224.19
You Save: $92.50 (42%)
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Position: Driver Side
- Replaces: 12602037, 12562235, 12571678, 12564155
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2017 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Express 2500 Exhaust Manifold, Passenger Side Part Number: 12624683
$330.65 MSRP: $520.25
You Save: $189.60 (37%)
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Passenger Side
- Replaces: 97224586
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2016 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 6.6 L DIESEL
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Chevrolet Express 2500 Exhaust Manifold Part Number: 12677665
$230.69 MSRP: $362.98
You Save: $132.29 (37%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Replaces: 12648339
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2017 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
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Chevrolet Express 2500 Exhaust Manifold, Driver Side Part Number: 12686303
$429.15 MSRP: $737.06
You Save: $307.91 (42%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Driver Side
- Replaces: 12610962
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2020 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Express 2500 Exhaust Manifold, Driver Side Part Number: 10238374
$188.35 MSRP: $296.35
You Save: $108.00 (37%)
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2002 Chevrolet Express 2500 | Base, LS | 8 Cyl 6.5 L DIESEL
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Chevrolet Express 2500 Exhaust Manifold, Passenger Side Part Number: 10238373
$210.27 MSRP: $330.84
You Save: $120.57 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2002 Chevrolet Express 2500 | Base, LS | 8 Cyl 6.5 L DIESEL
View related parts
Chevrolet Express 2500 Exhaust Manifold, Passenger Side Part Number: 12686302
$474.03 MSRP: $807.01
You Save: $332.98 (42%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Passenger Side
- Replaces: 12677663, 12612084, 12647717
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2020, 2008 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Express 2500 Exhaust Manifold, Driver Side Part Number: 12701716
$59.65 MSRP: $93.42
You Save: $33.77 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Express 2500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
View related parts
Chevrolet Express 2500 Exhaust Manifold, Driver Side Part Number: 12701714
$222.00 MSRP: $349.23
You Save: $127.23 (37%)
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Driver Side
- Replaces: 12690201
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 6.6 L GAS
View related parts
Chevrolet Express 2500 Exhaust Manifold, Passenger Side Part Number: 12668118
$79.78 MSRP: $124.95
You Save: $45.17 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold-Exhaust (Right-Hand); Manifold, Engine Exhaust Manifold
- Position: Passenger Side
- Replaced by: 12701709
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Express 2500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
View related parts
Chevrolet Express 2500 Exhaust Manifold, Passenger Side Part Number: 12701715
$263.74 MSRP: $394.23
You Save: $130.49 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Passenger Side
- Replaces: 12690202
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Express 2500 | Base, LS, LT | 8 Cyl 6.6 L GAS
View related parts
Chevrolet Express 2500 Exhaust Manifold, Passenger Side Part Number: 12631813
$140.35 MSRP: $220.82
You Save: $80.47 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2020 Chevrolet Express 2500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
View related parts
Chevrolet Express 2500 Exhaust Manifold Part Number: 55592373
$183.36 MSRP: $288.51
You Save: $105.15 (37%)
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Replaced by: 24590266
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2022 Chevrolet Express 2500 | Base, LS, LT | 4 Cyl 2.8 L DIESEL
View related parts
Chevrolet Express 2500 Exhaust Manifold, Passenger Side Part Number: 12550172
$159.20 MSRP: $250.48
You Save: $91.28 (37%)
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2002 Chevrolet Express 2500 | Base, LS | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Express 2500 Exhaust Manifold, Driver Side Part Number: 12574406
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2006 Chevrolet Express 2500 | Base, LS | 6 Cyl 4.3 L GAS
View related parts
Chevrolet Express 2500 Exhaust Manifold Part Number: 93802337
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Replaces: 12554981
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2002 Chevrolet Express 2500 | Base, LS | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS
View related parts
Chevrolet Express 2500 Exhaust Manifold Part Number: 12557745
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2002 Chevrolet Express 2500 | Base, LS | 6 Cyl 4.3 L GAS

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Chevrolet Express 2500 Exhaust Manifold

Want to cut long-term maintenance and repair costs? Choose OEM Exhaust Manifold. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Chevrolet Express 2500 parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Chevrolet Express 2500 Exhaust Manifold includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

Chevrolet Express 2500 Exhaust Manifold Parts Questions & Experts Answers

Exhaust Manifold, Driver Side
10238374
Q: How to replace the left exhaust manifold on Chevrolet Express 2500?
A:
Start the left Exhaust Manifold replacement process by removing the engine cover followed by disconnecting the engine coolant temperature (ECT) gage sensor electric wires. The installation process begins by lifting the car then removing the left wheel and fender wheelhouse extension part before taking out the Catalytic Converter assembly. Egr valve inlet pipe detachment from Exhaust Manifold must occur before you remove Spark Plug Wires while uninstalling their support bolts and their coupled Spark Plug wire support. Take out the spark plugs and the air pipe from the Exhaust Manifold then remove the Exhaust Manifold together with its gaskets and Spark Plug wire shields from beneath the vehicle. All gasket surfaces should be cleaned before installation. Attach the new gaskets with the Spark Plug wire shields and bolts to the Exhaust Manifold but maintain their positions through the gasket tabs. Proceed with installing the Exhaust Manifold and then connect the spark plugs followed by the Spark Plug Wires. Before reinstalling the Exhaust Manifold attach its air pipe then secure the Spark Plug wire support using bolts while tightening them to 12 nm (106 inch lbs.). The egr valve inlet pipe goes on the Exhaust Manifold followed by tightening its nut to 30 nm (22 ft. Lbs.) and continuing with the reinstallation of the Catalytic Converter assembly along with the fender wheelhouse extension and left front tire. The engine cover must be installed after properly connecting the ect gage sensor electrical connector and lowering the vehicle.