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OEM 2003 Cadillac DeVille Exhaust Manifold

Engine Exhaust Manifold
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4 Exhaust Manifolds found

  • 2003 Cadillac DeVille Exhaust Manifold - 12564185
    2003 Cadillac DeVille Exhaust Manifold Diagram - 12564185
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    2003 Cadillac DeVille Exhaust Manifold, Driver Side

    Part Number: 12564185
    $28.32 MSRP: $421.39
    You Save: $393.07 (94%)
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    Product Specifications
    • Other Name: Manifold, Engine Exhaust Manifold; Manifold
    • Position: Driver Side
    • Item Weight: 9.30 Pounds
    • Item Dimensions: 15.2 x 13.7 x 5.6 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 12564185
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 Cadillac DeVille Submodels:
    • Base, DHS, DTS | 8 Cyl 4.6 L GAS
  • 2003 Cadillac DeVille Exhaust Manifold - 12559225
    2003 Cadillac DeVille Exhaust Manifold Diagram - 12559225
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    2003 Cadillac DeVille Exhaust Manifold, Driver Side

    Part Number: 12559225
    Product Specifications
    • Other Name: Manifold, Engine Exhaust Manifold; Manifold
    • Position: Driver Side
    • Item Weight: 9.80 Pounds
    • Item Dimensions: 14.2 x 11.0 x 2.3 inches
    • Condition: New
    • SKU: 12559225
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 Cadillac DeVille Submodels:
    • Base, DHS, DTS | 8 Cyl 4.6 L GAS
  • 2003 Cadillac DeVille Exhaust Manifold - 12558512
    2003 Cadillac DeVille Exhaust Manifold Diagram - 12558512
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    2003 Cadillac DeVille Exhaust Manifold, Passenger Side

    Part Number: 12558512
    Product Specifications
    • Other Name: Manifold, Engine Exhaust Manifold; Manifold
    • Position: Passenger Side
    • Item Weight: 9.00 Pounds
    • Item Dimensions: 14.9 x 8.3 x 3.8 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 12558512
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 Cadillac DeVille Submodels:
    • Base, DHS, DTS, Protection Series | 8 Cyl 4.6 L GAS
  • 2003 Cadillac DeVille Exhaust Manifold - 12557767
    2003 Cadillac DeVille Exhaust Manifold Diagram - 12557767
    View related parts

    2003 Cadillac DeVille Exhaust Manifold, Passenger Side

    Part Number: 12557767
    Product Specifications
    • Other Name: Manifold, Engine Exhaust Manifold; Manifold
    • Position: Passenger Side
    • Item Weight: 9.00 Pounds
    • Item Dimensions: 15.8 x 8.5 x 6.7 inches
    • Condition: New
    • Fitment Type: Direct Replacement
    • SKU: 12557767
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    More Info
    Fits the following 2003 Cadillac DeVille Submodels:
    • Base, DHS, DTS, Protection Series | 8 Cyl 4.6 L GAS

2003 Cadillac DeVille Exhaust Manifold

With a comprehensive array of OEM 2003 Cadillac DeVille Exhaust Manifold, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2003 Cadillac DeVille 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.

2003 Cadillac DeVille Exhaust Manifold Parts Questions & Experts Answers

  • Q: How to replace the left exhaust manifold on 2003 Cadillac DeVille?
    A: The first action towards replacing the left Exhaust Manifold involves unfastening the 2 nuts which secure the secondary air tube to the Exhaust Manifold followed by detaching the secondary air tube and its gasket. The gasket must be discarded. Celebrating the front Engine Mount Bracket and elevating along with supporting the vehicle comes next. First detach the Oxygen Sensor then eliminate the two mounting bolts which attach the left Exhaust Manifold to the front Exhaust Manifold pipe. Use bolt-removing tools on the left Exhaust Manifold retaining bolts before extracting both the left Exhaust Manifold and its removable gasket that must be discarded for new usage. Start by removing the front Exhaust Manifold pipe seal along with the Exhaust Manifold flange seal retainer from the left Exhaust Manifold before cleaning and inspecting the part. Next install the retainer along with a new front Exhaust Manifold pipe seal onto the left Exhaust Manifold before placing a new Exhaust Manifold gasket on the left Cylinder Head. Users must insert the left Exhaust Manifold into the front Exhaust Manifold pipe and up to the left Cylinder Head before installing left Exhaust Manifold bolts that must be tightened to 25 nm (18 ft. Lbs.). Install and tighten the 2 left Exhaust Manifold bolts which connect to the front Exhaust Manifold pipe to 25 nm (18 ft. Lbs.). Reinstall the Oxygen Sensor then mount the front engine bracket before lowering the vehicle. After that, attach the secondary air tube gasket and bolt the tube to the Exhaust Manifold through 2 nuts using 12 nm (106 inch lbs.) torque.

Related 2003 Cadillac DeVille Parts

Alternate Year Models

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2002 Cadillac DeVille Exhaust Manifold 2004 Cadillac DeVille Exhaust Manifold