How to replace the right side exhaust manifold (LY7) on 2007 Cadillac STS?

The right side Exhaust Manifold replacement (LY7) requires users to start by removing the heat shield before removing both the Catalytic Converter nuts and Exhaust Manifold bolts while discarding the gasket. The first step is to remove the Exhaust Manifold and then throw away the old gasket before cleaning and checking its condition. The technician must check the Catalytic Converter heat shield sealing area before installation. The replacement of worn or damaged parts should also occur. Attach a new Exhaust Manifold gasket onto the Exhaust Manifold before securement of the manifold assembly to the Catalytic Converter and Cylinder Head by following the provided fastener rules. You should secure the Exhaust Manifold bolts using a torque of 20 n.m (15 lb ft) and the Catalytic Converter nuts need to be tightened to 50 n.m (37 lb ft). The Exhaust Manifold heat shield needs to be installed as the final step.

OEM 2007 Cadillac STS Exhaust Manifold

Engine Exhaust Manifold

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6 Exhaust Manifolds found

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2007 Cadillac STS Exhaust Manifold, Driver Side Part Number: 12638993
Product Specifications
- Other Name: Manifold, Catalytic Converter; Manifold, Engine Exhaust Manifold
- Position: Driver Side
- Replaces: 12606643
- Item Weight: 20.60 Pounds
- Item Dimensions: 32.3 x 10.5 x 5.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12638993
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- V | 8 Cyl 4.4 L GAS
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2007 Cadillac STS Exhaust Manifold, Driver Side Part Number: 12571102
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Position: Driver Side
- Item Weight: 8.00 Pounds
- Item Dimensions: 15.3 x 7.3 x 7.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12571102
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base, Platinum | 6 Cyl 3.6 L GAS
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2007 Cadillac STS Exhaust Manifold, Passenger Side Part Number: 12638994
Product Specifications
- Other Name: Manifold, Catalytic Converter; Manifold, Engine Exhaust Manifold
- Position: Passenger Side
- Replaces: 12606642
- Item Weight: 21.60 Pounds
- Item Dimensions: 33.8 x 10.2 x 5.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12638994
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- V | 8 Cyl 4.4 L GAS
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2007 Cadillac STS Exhaust Manifold, Driver Side Part Number: 12638999
Product Specifications
- Other Name: Manifold, Exhaust (W/3Way Catalytic Converter); Manifold; Manifold, Engine Exhaust Manifold; Manifold, Catalytic Converter
- Position: Driver Side
- Replaces: 12607451
- Item Weight: 20.20 Pounds
- Item Dimensions: 31.7 x 10.4 x 5.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12638999
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base, Platinum | 8 Cyl 4.6 L GAS
View related parts
2007 Cadillac STS Exhaust Manifold, Passenger Side Part Number: 12638996
Product Specifications
- Other Name: Manifold, Exhaust (W/3Way Catalytic Converter); Manifold; Manifold, Engine Exhaust Manifold; Manifold, Catalytic Converter
- Position: Passenger Side
- Replaces: 12607450
- Item Weight: 20.40 Pounds
- Item Dimensions: 32.0 x 10.5 x 4.3 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12638996
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base, Platinum | 8 Cyl 4.6 L GAS
View related parts
2007 Cadillac STS Exhaust Manifold, Passenger Side Part Number: 12571101
Product Specifications
- Other Name: Manifold, Engine Exhaust Manifold; Manifold
- Position: Passenger Side
- Item Weight: 7.40 Pounds
- Item Dimensions: 15.0 x 7.5 x 7.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12571101
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base, Platinum | 6 Cyl 3.6 L GAS

2007 Cadillac STS Exhaust Manifold

With a comprehensive array of OEM 2007 Cadillac STS Exhaust Manifold, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2007 Cadillac STS 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 Cadillac STS Exhaust Manifold Parts and Q&A

Q: How to replace the right side exhaust manifold (LY7) on 2007 Cadillac STS?
A: The right side Exhaust Manifold replacement (LY7) requires users to start by removing the heat shield before removing both the Catalytic Converter nuts and Exhaust Manifold bolts while discarding the gasket. The first step is to remove the Exhaust Manifold and then throw away the old gasket before cleaning and checking its condition. The technician must check the Catalytic Converter heat shield sealing area before installation. The replacement of worn or damaged parts should also occur. Attach a new Exhaust Manifold gasket onto the Exhaust Manifold before securement of the manifold assembly to the Catalytic Converter and Cylinder Head by following the provided fastener rules. You should secure the Exhaust Manifold bolts using a torque of 20 n.m (15 lb ft) and the Catalytic Converter nuts need to be tightened to 50 n.m (37 lb ft). The Exhaust Manifold heat shield needs to be installed as the final step.