How to replace the air hose outlet duct on 2006 Cadillac STS?

Start by taking out the front engine compartment sight shield to replace the air cleaner outlet duct. You must disconnect the vacuum hose from the air cleaner duct followed by releasing the air duct clamps at both the supercharger inlet duct assembly and the air cleaner housing cover. Drain the air cleaner duct from the motor vehicle. Position and tighten both clamps on the supercharger inlet duct and air cleaner housing cover to 3 N.m (27 lb in) after installing the new air cleaner duct. Attache the vacuum hose to the air cleaner duct before reinstalling the front engine compartment sight shield.

OEM 2006 Cadillac STS Air Hose

Air Inlet Duct

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2006 Cadillac STS Outlet Duct
Part Number: 21999771
Product Specifications
- Other Name: Duct, Air Cleaner And Silencer
- Item Weight: 1.40 Pounds
- Item Dimensions: 11.2 x 9.6 x 5.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 21999771
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2006 Cadillac STS Submodels:
- V | 8 Cyl 4.4 L GAS
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2006 Cadillac STS PCV Valve
Part Number: 12614861
Product Specifications
- Other Name: Tube Assembly-PCV; Tube, Engine Crankcase Ventilation
- Replaces: 12604755
- Item Weight: 0.40 Pounds
- Item Dimensions: 12.3 x 4.5 x 3.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12614861
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 Cadillac STS Submodels:
- Base, Platinum | 8 Cyl 4.6 L GAS
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2006 Cadillac STS Intake Duct
Part Number: 25733251
Product Specifications
- Other Name: Duct, Air Cleaner Intake; Inlet Duct
- Position: Rear
- Item Weight: 1.40 Pounds
- Item Dimensions: 16.9 x 5.9 x 5.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 25733251
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 Cadillac STS Submodels:
- Base, Platinum | 6 Cyl 3.6 L GAS
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2006 Cadillac STS Intake Duct
Part Number: 25744215
Product Specifications
- Other Name: Duct, Air Cleaner Intake; Inlet Duct
- Position: Rear
- Item Weight: 1.20 Pounds
- Item Dimensions: 9.8 x 5.6 x 16.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 25744215
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 Cadillac STS Submodels:
- Base | 8 Cyl 4.6 L GAS

2006 Cadillac STS Air Hose

With a comprehensive array of OEM 2006 Cadillac STS Air Hose, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2006 Cadillac STS Air Hose are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2006 Cadillac STS Air Hose Parts Questions & Experts Answers

Q: How to replace the air hose outlet duct on 2006 Cadillac STS?
A: Start by taking out the front engine compartment sight shield to replace the air cleaner outlet duct. You must disconnect the vacuum hose from the air cleaner duct followed by releasing the air duct clamps at both the supercharger inlet duct assembly and the air cleaner housing cover. Drain the air cleaner duct from the motor vehicle. Position and tighten both clamps on the supercharger inlet duct and air cleaner housing cover to 3 N.m (27 lb in) after installing the new air cleaner duct. Attache the vacuum hose to the air cleaner duct before reinstalling the front engine compartment sight shield.