How to replace the right exhaust manifold on a 4.3L engine on 2007 GMC Sierra 1500 Classic?

To replace the right exhaust manifold on a 4.3L engine, elevate the car and disconnect the right exhaust manifold pipe nuts. Loosen the air cleaner outlet duct clamp, remove the PCV hose, and remove spark plug wires. Remove and clean exhaust manifold and gaskets and replace with new gaskets and manifold. Reinstall components and tighten if necessary.

OEM 2007 GMC Sierra 1500 Classic Exhaust Manifold

Engine Exhaust Manifold

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4 Exhaust Manifolds found

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2007 GMC Sierra 1500 Classic Exhaust Manifold, Passenger Side Part Number: 12574320
$168.06 MSRP: $264.43
You Save: $96.37 (37%)
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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.
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Fits the following 2007 GMC Sierra 1500 Classic Submodels:
- SL, WT | 6 Cyl 4.3 L GAS
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2007 GMC Sierra 1500 Classic Exhaust Manifold, Driver Side Part Number: 12616285
$131.69 MSRP: $224.19
You Save: $92.50 (42%)
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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 2007 GMC Sierra 1500 Classic Submodels:
- Denali, Hybrid, SL, SLE, SLT, WT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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2007 GMC Sierra 1500 Classic Exhaust Manifold Part Number: 12677665
$230.69 MSRP: $362.98
You Save: $132.29 (37%)
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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 2007 GMC Sierra 1500 Classic Submodels:
- Denali, Hybrid, SL, SLE, SLT, WT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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2007 GMC Sierra 1500 Classic 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 2007 GMC Sierra 1500 Classic Submodels:
- SL, WT | 6 Cyl 4.3 L GAS

2007 GMC Sierra 1500 Classic Exhaust Manifold

With a comprehensive array of OEM 2007 GMC Sierra 1500 Classic Exhaust Manifold, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2007 GMC Sierra 1500 Classic 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.

2007 GMC Sierra 1500 Classic Exhaust Manifold Parts and Q&A

Q: How to replace the right exhaust manifold on a 4.3L engine on 2007 GMC Sierra 1500 Classic?
A: To replace the right exhaust manifold on a 4.3L engine, elevate the car and disconnect the right exhaust manifold pipe nuts. Loosen the air cleaner outlet duct clamp, remove the PCV hose, and remove spark plug wires. Remove and clean exhaust manifold and gaskets and replace with new gaskets and manifold. Reinstall components and tighten if necessary.