How to replace the right side exhaust manifold for 4.8L, 5.3L, and 6.0L engines on Chevrolet Express 3500?

Assessing the right side Exhaust Manifold replacement process on 4.8l, 5.3l and 6.0l engines requires the first step to be Catalytic Converter removal from the Exhaust Manifold. Start by removing the engine cover together with the oil level indicator tube from the assembly. Clean all surfaces where the Exhaust Manifold will seal before taking it off with its attaching bolts. Begin installation by putting on the Exhaust Manifold and its bolts and clamp these bolts to 15 n.m (11 lb ft) on the first installation sequence followed by tightening them to 25 n.m (18 lb ft) in the second sequence. The installation process begins by reinstalling both parts: the oil level indicator tube and the Catalytic Converter to the Exhaust Manifold. Finally, reinstall the engine cover.

How to replace the left exhaust manifold (4.8L, 5.3L, 6.0L) on Chevrolet Express 3500?

Vehicle elevation and Catalytic Converter removal from the Exhaust Manifold are the first necessary steps for left Exhaust Manifold replacement (4.8L, 5.3L, 6.0L). Start by removing the engine cover followed by disconnection of the egr valve pipe from the Exhaust Manifold when it exists. You need to remove the Spark Plug Wires before uninstalling the Exhaust Manifold while cleaning all contact points along its surfaces. Instillation of the Exhaust Manifold requires bolt tightening to 15 nm (11 ft-lbs.) on the first round followed by 25 nm (18 ft-lbs.) on the second round. Proceed to connect the egr valve pipe to the manifold before reinstalling Spark Plug Wires and finally attaching Exhaust Pipe to the manifold then recovering the engine cover.

OEM Chevrolet Express 3500 Exhaust Manifold

Engine Exhaust Manifold

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28 Exhaust Manifolds found

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Chevrolet Express 3500 Exhaust Manifold, Driver Side Part Number: 12637647
$299.74 MSRP: $493.77
You Save: $194.03 (40%)
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 3500 | Base, LS, LT | 8 Cyl 6.6 L DIESEL
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Chevrolet Express 3500 Exhaust Manifold, Driver Side Part Number: 12631812
$146.05 MSRP: $231.87
You Save: $85.82 (38%)
Ships in 1-3 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:
- 2018-2020 Chevrolet Express 3500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
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Chevrolet Express 3500 Exhaust Manifold, Passenger Side Part Number: 12624683
$327.69 MSRP: $520.25
You Save: $192.56 (38%)
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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 3500 | Base, LS, LT | 8 Cyl 6.6 L DIESEL
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Chevrolet Express 3500 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 3500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 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 3500 Exhaust Manifold, Passenger Side Part Number: 10238373
$200.84 MSRP: $330.84
You Save: $130.00 (40%)
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 3500 | Base, LS | 8 Cyl 6.5 L DIESEL
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Chevrolet Express 3500 Exhaust Manifold, Driver Side Part Number: 10238374
$186.66 MSRP: $296.35
You Save: $109.69 (38%)
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 3500 | Base, LS | 8 Cyl 6.5 L DIESEL
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Chevrolet Express 3500 Exhaust Manifold, Driver Side Part Number: 12701714
$212.04 MSRP: $349.23
You Save: $137.19 (40%)
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 3500 | Base, LS, LT | 8 Cyl 6.6 L GAS
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Chevrolet Express 3500 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 3500 | Base, LS, LT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
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Chevrolet Express 3500 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 3500 | Base, LS, LT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
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Chevrolet Express 3500 Exhaust Manifold, Driver Side Part Number: 12701716
$58.85 MSRP: $93.42
You Save: $34.57 (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 3500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
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Chevrolet Express 3500 Exhaust Manifold Part Number: 12677665
$228.62 MSRP: $362.98
You Save: $134.36 (38%)
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 3500 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 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 3500 Exhaust Manifold, Passenger Side Part Number: 12668118
$75.86 MSRP: $124.95
You Save: $49.09 (40%)
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 3500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
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Chevrolet Express 3500 Exhaust Manifold, Passenger Side Part Number: 12701715
$261.38 MSRP: $394.23
You Save: $132.85 (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 3500 | Base, LS, LT | 8 Cyl 6.6 L GAS
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Chevrolet Express 3500 Exhaust Manifold Part Number: 55592373
$175.14 MSRP: $288.51
You Save: $113.37 (40%)
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 3500 | Base, LS, LT | 4 Cyl 2.8 L DIESEL
View related parts
Chevrolet Express 3500 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:
- 1997-1998 Chevrolet Express 3500 | Base, LS | 6 Cyl 4.3 L GAS
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Chevrolet Express 3500 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 3500 | Base, LS | 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS
View related parts
Chevrolet Express 3500 Exhaust Manifold, Passenger Side Part Number: 12553146
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:
- 1996-2000 Chevrolet Express 3500 | Base, LS | 8 Cyl 7.4 L GAS
View related parts
Chevrolet Express 3500 Exhaust Manifold, Driver Side Part Number: 12553149
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:
- 1996-2000 Chevrolet Express 3500 | Base, LS | 8 Cyl 7.4 L GAS
View related parts
Chevrolet Express 3500 Exhaust Manifold, Passenger Side Part Number: 12631813
$134.05 MSRP: $220.82
You Save: $86.77 (40%)
Ships in 1-3 Business Days
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 3500 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
View related parts
Chevrolet Express 3500 Exhaust Manifold, Driver Side Part Number: 12557283
$735.16 MSRP: $946.16
You Save: $211.00 (23%)
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:
- 2001-2002 Chevrolet Express 3500 | Base, LS | 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 8.1 L GAS

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Chevrolet Express 3500 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 3500 parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Chevrolet Express 3500 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 3500 Exhaust Manifold Parts and Q&A

Exhaust Manifold, Passenger Side
12624683
Q: How to replace the right side exhaust manifold for 4.8L, 5.3L, and 6.0L engines on Chevrolet Express 3500?
A:
Assessing the right side Exhaust Manifold replacement process on 4.8l, 5.3l and 6.0l engines requires the first step to be Catalytic Converter removal from the Exhaust Manifold. Start by removing the engine cover together with the oil level indicator tube from the assembly. Clean all surfaces where the Exhaust Manifold will seal before taking it off with its attaching bolts. Begin installation by putting on the Exhaust Manifold and its bolts and clamp these bolts to 15 n.m (11 lb ft) on the first installation sequence followed by tightening them to 25 n.m (18 lb ft) in the second sequence. The installation process begins by reinstalling both parts: the oil level indicator tube and the Catalytic Converter to the Exhaust Manifold. Finally, reinstall the engine cover.
Exhaust Manifold
12677665
Q: How to replace the left exhaust manifold (4.8L, 5.3L, 6.0L) on Chevrolet Express 3500?
A:
Vehicle elevation and Catalytic Converter removal from the Exhaust Manifold are the first necessary steps for left Exhaust Manifold replacement (4.8L, 5.3L, 6.0L). Start by removing the engine cover followed by disconnection of the egr valve pipe from the Exhaust Manifold when it exists. You need to remove the Spark Plug Wires before uninstalling the Exhaust Manifold while cleaning all contact points along its surfaces. Instillation of the Exhaust Manifold requires bolt tightening to 15 nm (11 ft-lbs.) on the first round followed by 25 nm (18 ft-lbs.) on the second round. Proceed to connect the egr valve pipe to the manifold before reinstalling Spark Plug Wires and finally attaching Exhaust Pipe to the manifold then recovering the engine cover.