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โก Upgrade your 4WD system with precision and confidence!
The Dorman 926-391 4WD Actuator Vacuum Check Valve is a high-quality, direct replacement part designed to restore proper vacuum levels in select Ford and Lincoln 4WD systems. Featuring durable metal construction and engineered to OEM specifications, it ensures reliable performance and easy installation. Backed by a limited lifetime warranty and expert craftsmanship, this valve is a must-have for maintaining your vehicleโs off-road readiness and driving confidence.





| ASIN | B09S2W4RRS |
| Best Sellers Rank | #42,627 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Replacement Emission Vacuum Valves |
| Brand | Dorman |
| Brand Name | Dorman |
| Connector Type | Barb |
| Customer Reviews | 4.5 out of 5 stars 239 Reviews |
| Exterior Finish | Ready To Paint If Needed |
| Included Components | 1 Tube Assembly |
| Inlet Connection Type | Compression |
| Item Dimensions | 8.85 x 3.15 x 3.15 inches |
| Item Type Name | 4WD Actuator Vacuum Check Valve Compatible with Select Ford / Lincoln Models |
| Item Weight | 0.2 Pounds |
| Item dimensions L x W x H | 8.85 x 3.15 x 3.15 inches |
| Manufacturer | Dorman Products |
| Manufacturer Part Number | 926-391 |
| Manufacturer Warranty Description | Limited Lifetime |
| Material | Metal |
| Material Type | Metal |
| Model Number | 926-391 |
| Number of Ports | 2 |
| Outlet Connection Size | 3.15 Inches |
| Outlet Connection Type | Compression |
| Size | 84.77 cubic inches |
| UPC | 037495934152 |
| Unit Count | 1.0 Count |
| Valve Type | vacuum check valve |
N**K
Perfect replacement for and old vac line.
Worked perfect.
H**M
THE FIRST AND CHEAPEST CHECKPOINT
Actuators hanging up? At the first sound of troubleโฆ replace this. I had to replace bearings, actuator and CV shaft because this went lame. Step 2 is the solenoid that this hooks up to. Save some money.
C**G
Good buy
This was so easy to install.
B**P
Works
Works like it should
J**K
Recommend
Fixed the problem and was exact fit
S**E
IWEs
Perfect fit. IWEs fixed
D**H
Good
Perfect fit and appears to be good quality.
T**N
Vacuum line
Vacuum line itself is good super fast shipping g reasonable price only problem is value keeps coming apart most of time Dorman is good value on line is junk might have to put old value on did not fix grinding but did not think it would but I broke line on my truck so I still needed it
D**.
Easy simple fix
Perfect fit !
D**N
Install
Easy install
A**R
Fits a 2014 f150
Fit perfect for 2014 f150
J**K
Poor quality
Vacuum valve fell apart upon inspection had to use the original one
Trustpilot
2 weeks ago
2 weeks ago