How to replace the right exhaust manifold on a 4.3L engine on 2005 Chevrolet Express 2500?

You need to perform this task on the right Exhaust Manifold (4.3L) by first raising the vehicle and taking off the right front tire and right fender wheelhouse extension. Start by disconnecting the Spark Plug Wires from their positions. Then unscrew both bolts and the support which holds the wires. The Starter and Catalytic Converter assembly should be taken away from the vehicle next. Access Exhaust Manifold bolts through the wheelhouse and remove them and the Exhaust Manifold, Exhaust Manifold gaskets along with Spark Plug wire shields from the engine. First clean all gasket surfaces after which attach the new gaskets and Spark Plug wire shields along with bolts onto the Exhaust Manifold while relying on gasket tabs to maintain bolt position. The Exhaust Manifold installation requires two tightening passes at 15 nm (11 ft. Lbs.) followed by 30 nm (22 ft. Lbs.). You should reinstall the Catalytic Converter assembly with the Starter before you add the Spark Plug wire support and its corresponding bolts which need to be tightened up to 12 nm (106 inch lbs.). After that install the fender wheelhouse extension, put back the front tire and lower the vehicle while reconnecting the Spark Plug Wires.

OEM 2005 Chevrolet Express 2500 Exhaust Manifold

Engine Exhaust Manifold

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4 Exhaust Manifolds found

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2005 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
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Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Passenger Side
- Item Weight: 13.20 Pounds
- Item Dimensions: 25.2 x 10.0 x 8.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12574320
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Chevrolet Express 2500 Submodels:
- Base, LS | 6 Cyl 4.3 L GAS
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2005 Chevrolet Express 2500 Exhaust Manifold
Part Number: 12677665
$226.17 MSRP: $355.86
You Save: $129.69 (37%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Replaces: 12648339
- Item Weight: 14.40 Pounds
- Item Dimensions: 9.2 x 5.3 x 25.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12677665
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Chevrolet Express 2500 Submodels:
- 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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2005 Chevrolet Express 2500 Exhaust Manifold, Driver Side
Part Number: 12574406
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold
- Position: Driver Side
- Item Weight: 12.00 Pounds
- Item Dimensions: 24.7 x 9.6 x 8.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12574406
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Chevrolet Express 2500 Submodels:
- Base, LS | 6 Cyl 4.3 L GAS
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2005 Chevrolet Express 2500 Exhaust Manifold, Driver Side
Part Number: 12616285
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Position: Driver Side
- Replaces: 12602037, 12562235, 12571678, 12564155
- Item Weight: 10.30 Pounds
- Item Dimensions: 9.7 x 8.2 x 24.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12616285
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Chevrolet Express 2500 Submodels:
- 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

2005 Chevrolet Express 2500 Exhaust Manifold

With a comprehensive array of OEM 2005 Chevrolet Express 2500 Exhaust Manifold, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2005 Chevrolet Express 2500 Exhaust Manifold are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2005 Chevrolet Express 2500 Exhaust Manifold Parts Questions & Experts Answers

Q: How to replace the right exhaust manifold on a 4.3L engine on 2005 Chevrolet Express 2500?
A: You need to perform this task on the right Exhaust Manifold (4.3L) by first raising the vehicle and taking off the right front tire and right fender wheelhouse extension. Start by disconnecting the Spark Plug Wires from their positions. Then unscrew both bolts and the support which holds the wires. The Starter and Catalytic Converter assembly should be taken away from the vehicle next. Access Exhaust Manifold bolts through the wheelhouse and remove them and the Exhaust Manifold, Exhaust Manifold gaskets along with Spark Plug wire shields from the engine. First clean all gasket surfaces after which attach the new gaskets and Spark Plug wire shields along with bolts onto the Exhaust Manifold while relying on gasket tabs to maintain bolt position. The Exhaust Manifold installation requires two tightening passes at 15 nm (11 ft. Lbs.) followed by 30 nm (22 ft. Lbs.). You should reinstall the Catalytic Converter assembly with the Starter before you add the Spark Plug wire support and its corresponding bolts which need to be tightened up to 12 nm (106 inch lbs.). After that install the fender wheelhouse extension, put back the front tire and lower the vehicle while reconnecting the Spark Plug Wires.