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GM Genuine Parts 12594578 Positive Crankcase Ventilation (PCV) Tube

Q: is oil supposed to go through this tube? my 2007 acadia has oil in this tube

Yes it’s part of the pcv system google it. Just relieves pressure from the crank case. Blow it out with an air hose or clean it with soap and water if not damaged and just blow thru it. I cleaned this hose and the intake breather and throttle body every 20k or so and never had any gasket issues with our Acadia

Q: is oil supposed to go through this tube? my 2007 acadia has oil in this tube

No but it's a design problem with the Acadia and outlooks

Product ID: 154695266

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Details

Material
pcv
Brand
GM GENUINE
Item dimensions L x W x H
7.6 x 4 x 1.1
Exterior Finish
Machined
Inlet Connection Size
0.32 Inches
Inlet Connection Type
Barb

📏Compact 7.6-inch design

🔧Easy install with GM warranty

⚙️OEM precision fit

Frequently Bought Together

ACDelco GM Genuine Parts 12594578 Positive Crankcase Ventilation (PCV) Tube, Black

ACDelco GM Genuine Parts 12583384 Passenger Side Positive Crankcase Ventilation (PCV) Fitting

V546 PCV Valve for Chevy Chevrolet Camaro Equinox Malibu Impala Traverse Cadillac Buick Enclave Saturn Pontiac G6 G8 Torrent GMC Acadia Terrain PCV Valve 2.4 2.5 3.0 3.6 6.2 7.0L 12578316 12681693

Description

⚙️ Upgrade your ride with GM’s precision-crafted PCV tube — because your engine deserves the best!

TRUSTED GM WARRANTY - Backed by GM’s warranty, giving you peace of mind with every mile.
DURABLE MACHINED FINISH - Crafted with a machined exterior for enhanced durability and long-lasting performance.
ENGINEERED FOR PERFECTION - Designed and tested specifically for GM vehicles to ensure flawless compatibility.
PRECISION FIT ZERO HASSLE - Exact OEM dimensions guarantee a seamless, no-fuss installation experience.
DEALER RECOMMENDED INSTALLATION - Professional installation support available at your nearest GM dealer or certified service center.

The GM Genuine Parts 12594578 PCV Tube is an OEM-certified, precision-engineered component designed exclusively for GM vehicles. Measuring 7.6 x 4 x 1.1 inches with a durable machined finish, it features dual 0.32-inch barb connections for optimal crankcase ventilation. Lightweight and backed by GM warranty, it ensures reliable performance and easy installation through authorized dealers and service centers.

Specifications

Material	pcv
Brand	GM GENUINE PARTS
Item dimensions L x W x H	7.6 x 4 x 1.1 inches
Exterior Finish	Machined
Inlet Connection Size	0.32 Inches
Inlet Connection Type	Barb
Outlet Connection Type	Barb
Number of Ports	2
Outlet Connection Size	0.32 Inches
Specification Met	OEM (GM)
Global Trade Identification Number	00808709948735
Manufacturer	ACDelco
UPC	808709948735
Model	GM Original Equipment
Item Weight	0.01 ounces
Product Dimensions	7.6 x 4 x 1.1 inches
Item model number	12594578
Manufacturer Part Number	12594578

Have a Question? See What Others Asked

What does this part actually do? the one in my 2008 gmc acadia appears to be duct tape fixed and i’m wondering how important it is

is oil supposed to go through this tube? my 2007 acadia has oil in this tube

Is this just the tube or are the end pieces attached as shown?

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