Positive Crankcase Ventilation Foul Air Tube - GM (12703921)
Genuine OEM GM Parts & Accessories - 12703921
Positive Crankcase Ventilation Foul Air Tube - GM (12703921)
Genuine OEM GM Parts & Accessories - 12703921
- GM
- 12703921
- 12679355, 12701691
Details
- Brand:
- SKU:
12703921
- Other Names:
Tube
- Description: ACDelco Positive Crankcase Ventilation Foul Air Tube (Part Number: 12703921) is a PCV (Positive Crankcase Ventilation) foul air tube assembly that routes crankcase ventilation gases per emissions requirements.World Parts Direct — a U.S. company — provides competitive prices, compatibility guarantees, and OEM/ACDelco technical support.
- Note: Positive Crankcase Ventilation (PCV) system component — first mention expanded
- Application: Documented for 2017–2021 3.6L engines
- Function: Directs crankcase vapors and foul air as part of the emissions control and ventilation system
- Benefit: Helps maintain proper emissions control and engine ventilation when installed to OEM procedure
- Also known as: Tube
- Underhood
- Emission Control Parts
- 21
- Condition: New
- Replaces:
12679355, 12701691
- MSRP: $65.96
- You Save: $27.42 (41.6% off)
- Sale Price: $38.54
Also Purchased
Fast Delivery
Most in-stock items ship within 1–3 business days. Special orders may take longer.
OEM Parts. Wholesale Prices.
Genuine OEM parts with a nationwide warranty. Lowest pricing guaranteed.
Shop With Confidence
Secure checkout, verified fitment, and dealer-backed support from real parts experts.
- GM
- 12703921
- 12679355, 12701691
Details
- Brand:
- SKU:
12703921
- Other Names:
Tube
- Description: ACDelco Positive Crankcase Ventilation Foul Air Tube (Part Number: 12703921) is a PCV (Positive Crankcase Ventilation) foul air tube assembly that routes crankcase ventilation gases per emissions requirements.World Parts Direct — a U.S. company — provides competitive prices, compatibility guarantees, and OEM/ACDelco technical support.
- Note: Positive Crankcase Ventilation (PCV) system component — first mention expanded
- Application: Documented for 2017–2021 3.6L engines
- Function: Directs crankcase vapors and foul air as part of the emissions control and ventilation system
- Benefit: Helps maintain proper emissions control and engine ventilation when installed to OEM procedure
- Also known as: Tube
- Underhood
- Emission Control Parts
- 21
- Condition: New
- Replaces:
12679355, 12701691
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|
WorldPartsDirect.com
Thanks for shopping with World Parts Direct, home of the low-price and right-part-guarantee! Everything we carry is genuine, OEM and ships straight from a licensed dealership. All of our products are backed by a nationwide warranty and can be returned within 30 days if you no longer need it. What's the catch? There isn't one! Nobody beats our prices and nobody offers higher quality parts than we do, and if we cannot get the part you need, nobody can! We offer hundreds of thousands of unique items, including discontinued parts. Your satisfaction is our top priority and we hope you'll give us the opportunity to earn your business today.
GM

Built with GM’s engineering expertise, ACDelco and OEM GM parts are factory original equipment replacement parts for your Chevy, Buick, Cadillac, GMC, Saturn, Pontiac, Oldsmobile or Hummer. Every ACDelco and OEM GM part is rigidly held to federal safety and quality standards and is guaranteed by GM Replacement Parts Limited Warranty. You can trust GM Genuine Parts when ordering this Positive Crankcase Ventilation Foul Air Tube for your 2017-2022 vehicle. GM Parts & Accessories Limited Warranty.
