How to replace the lower intake manifold on 2003 Buick Regal?

To change the lower intake manifold to the drain the cooling system and take off the supercharger. Unscrew the radiator inlet hose, EGR outlet pipe and the ECT sensor. Take out the lower intake manifold and seals, clean surfaces and inspect. Rebuild parts, making sure that they are aligned and clamped. Lastly, reconnect hose and check leakages.

OEM 2003 Buick Regal Intake Manifold

Engine Intake Manifold

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5 Intake Manifolds found

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2003 Buick Regal Manifold Part Number: 24503488
$7.44 MSRP: $11.67
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Product Specifications
- Other Name: Manifold-Vacuum Source; Intake Manifold; Manifold, Intake Manifold Vacuum
- Item Weight: 0.40 Pounds
- Item Dimensions: 3.3 x 2.2 x 2.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 24503488
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2003 Buick Regal Submodels:
- 25th Anniversary Edition, GS, GSE | 6 Cyl 3.8 L GAS
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2003 Buick Regal Intake Manifold Part Number: 89017272
Product Specifications
- Other Name: Manifold Kit, Engine Fuel Intake Manifold; Intake Plenum
- Position: Upper
- Item Weight: 8.10 Pounds
- Item Dimensions: 24.5 x 14.2 x 7.8 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89017272
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2003 Buick Regal Submodels:
- GS, LS, LSE | 6 Cyl 3.8 L GAS
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2003 Buick Regal Intake Manifold Part Number: 24505664
Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold
- Position: Upper
- Item Weight: 7.10 Pounds
- Item Dimensions: 20.0 x 12.8 x 5.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 24505664
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2003 Buick Regal Submodels:
- Custom, GS, LS, LSE | 6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS
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2003 Buick Regal Intake Manifold Part Number: 19417844
Product Specifications
- Other Name: Manifold, Engine Fuel Intake Manifold
- Replaces: 24505728, 24508923
- Item Weight: 13.10 Pounds
- Item Dimensions: 6.1 x 26.3 x 13.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19417844
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 Buick Regal Submodels:
- Custom, Gran Sport, GS, Limited, LS, LSE, Olympic Gold Edition | 6 Cyl 3.8 L GAS
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2003 Buick Regal Intake Manifold, Lower Part Number: 24505729
Product Specifications
- Other Name: Manifold Assembly-Lower Intake; Manifold; Manifold, Engine Fuel Intake Manifold
- Position: Lower
- Item Weight: 13.30 Pounds
- Item Dimensions: 19.8 x 13.3 x 5.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 24505729
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 Buick Regal Submodels:
- 25th Anniversary Edition, GS, GSE | 6 Cyl 3.8 L GAS

2003 Buick Regal Intake Manifold

With a comprehensive array of OEM 2003 Buick Regal Intake Manifold, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2003 Buick Regal Intake 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 Buick Regal Intake Manifold Parts and Q&A

Q: How to replace the lower intake manifold on 2003 Buick Regal?
A: To change the lower intake manifold to the drain the cooling system and take off the supercharger. Unscrew the radiator inlet hose, EGR outlet pipe and the ECT sensor. Take out the lower intake manifold and seals, clean surfaces and inspect. Rebuild parts, making sure that they are aligned and clamped. Lastly, reconnect hose and check leakages.