GM Genuine Parts®Verified to fit 16 vehicles
| Vehicle | Trim | Engine |
|---|---|---|
| 2026 Cadillac CT4Thermostat To Pipe | V | L4 2.7L |
| 2022 Cadillac CT4Outlet | Premium Luxury | L4 2.7L |
| 2022 Cadillac CT4Outlet | V | L4 2.7L |
| 2022 Chevrolet Silverado 1500Outlet | — | L4 2.7L |
| 2022 GMC Sierra 1500Outlet | — | L4 2.7L |
| 2022 GMC Sierra 1500 LimitedOutlet | — | L4 2.7L |
| 2021 Cadillac CT4Outlet | Premium Luxury | L4 2.7L |
| 2021 Cadillac CT4Outlet | V | L4 2.7L |
| 2021 Chevrolet Silverado 1500Outlet | — | L4 2.7L |
| 2021 GMC Sierra 1500Outlet | — | L4 2.7L |
| 2020 Cadillac CT4Outlet | Premium Luxury | L4 2.7L |
| 2020 Cadillac CT4Outlet | V | L4 2.7L |
| 2020 Chevrolet Silverado 1500Outlet | — | L4 2.7L |
| 2020 GMC Sierra 1500Outlet | — | L4 2.7L |
| 2019 Chevrolet Silverado 1500Outlet | — | L4 2.7L |
WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, known to the State of California to cause cancer and reproductive harm. Service the vehicle in a well-ventilated area, wear gloves, and wash your hands. See www.P65Warnings.ca.gov/motor-vehicle-parts
Guaranteed fit — or free return
Currently out of stock
Guaranteed to fitFits your vehicle or we pay the return. Learn more
If a part we confirmed for your vehicle does not fit, we cover the return shipping and refund you in full. That is the fitment guarantee.
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Nobody likes buying a part that turns out to be wrong. So if it doesn't fit, send it back for a full refund at no cost to you — return shipping is on us — and we'll help you get the right one.
AutoBuffy 24-month guaranteeCovered on this part, unlimited miles. Learn more
Every part is covered for 24 months. Many brands add their own manufacturer warranty on top.
4.9/5 ratingFrom 19,069 verified customers. Learn more
Ratings come from verified AutoBuffy buyers after delivery — no imported or paid reviews.
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GM Genuine Parts HVAC Heater Pipe 12691175
Out of stock · guaranteed fit or free return
GM Genuine Parts HVAC Heater Pipe 12691175
FREE delivery between Tue, Oct 20 to Tue, Oct 20
Ships To:Key Features
About This HVAC Heater Pipe
This GM Genuine Parts automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- •Unusual noises from the component area
- •Decreased vehicle performance
- •Warning lights on dashboard
- •Visible wear or damage
- •Failed vehicle inspection
GM Genuine Parts
Trusted Automotive Brand
GM Genuine Parts is a trusted manufacturer of quality automotive parts.
View all GM Genuine Parts productsInstallation Guide
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Frequently Asked Questions
The GM Genuine Parts HVAC Heater Pipe (12691175) is a direct-fit replacement for 2019-2026 Cadillac, GMC and Chevrolet vehicles. UPC 193468147285. Ships free.
About This Product
HVAC Heater Pipe
The GM Genuine Parts HVAC Heater Pipe (12691175) is a direct-fit replacement for 2019-2026 Cadillac, GMC and Chevrolet vehicles. UPC 193468147285. Ships free.
This GM Genuine Parts automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- Unusual noises from the component area
- Decreased vehicle performance
- Warning lights on dashboard
- Visible wear or damage
- Failed vehicle inspection
Brand-first. Fitment-obsessed.
We only sell brands automakers trust, and we double-check the fit on every listing.
Top curated brands only
The brands automakers put on the car.
Obsessed with fitment
Year, make, model, trim, engine, plus the fine print.
Search any part number
Your old part, a competitor, or the dealer #. We confirm the match.
Shop owner? Get BuffyPro business pricing
Fitment Obsessed
Every part checked against your exact year, make, model, trim, and engine.
Wrong Fit? On Us.
Free return shipping, no restocking fee — the fitment guarantee.
Brands OEMs Trust
The names automakers actually put on the car.
Millions of Parts, One Promise
If we say it fits, it fits.