


🛠️ Upgrade your cooling system with confidence — don’t let leaks slow you down!
The Dorman 902-404 Coolant Air Bleeder Screw is a high-quality, OEM-compatible replacement part made from durable alloy steel. Designed to endure high temperatures and pressures, it features precision UNC threading for a secure fit. Backed by over a century of Dorman’s automotive expertise and quality testing, this bleeder screw ensures reliable performance and easy fitment verification for select vehicle models.





| Material | Metal |
| Head Style | Fillister |
| Exterior Finish | Ready To Paint If Needed |
| Thread Size | oem |
| Point Style | Self-Piercing Point |
| Metal Type | Alloy Steel |
| Brand | Dorman |
| Head Type | Fillister |
| Item Weight | 0.05 Pounds |
| Thread Type | Unc |
| Thread Coverage | Partially Threaded |
| Fastener Type | Screw |
| Set Screw Thread Type | Unified National Coarse (UNC) |
| Thread Style | Right Hand |
| Thread Class | 2A |
| Fastener Size | Screws With O-rings |
| Size | Larger than 0.25 inches |
| Item Diameter | 0.25 Inches |
| Compatible groove diameter | 0.25 Inches |
| Number of Pieces | 1 |
| UPC | 019495366928 |
| Global Trade Identification Number | 00019495366928 |
| Manufacturer | Dorman Products |
| Model | 902-404 |
| Item Weight | 0.8 ounces |
| Item model number | 902-404 |
| Manufacturer Part Number | 902-404 |
| OEM Part Number | 17111712788; 11537793373; 17111712788; 5184979AA |
| Position | Center |
L**S
Good product
As all the screws that are plastic once used it still has to be replaced but afordable, fits perfect & good value
T**
Perfect fit even came with rubber seal
Good product
A**O
Good quality
Got the job done, seems to be better quality then factory ones.
C**S
Works for Land Rover
This fits the bleed valves on LR4 and probably loads of other Land Rover vehicles. As far as I can tell, LR will not sell just the bleed screw so buying from Land Rover means buying the entire hose assembly. If you have to bleed your coolant system you will need to use these bleed valves and after several years the plastic screws become brittle and fail. These are ideal replacements. After experiencing a nice fountain of hot coolant, I now keep a couple of these as spares in the car.
D**T
Coolant bleeder
They are plastic . So easy to strip out have a spare one on hand. Fits fine.
W**E
Did not fit
This was to small for a 2011 chevy cruze with ECO motor, need to order the white gm one for perfect fit, nothing wrong with the quality of the item or the service, was a good part if it had fit..hope this saves someone else the trouble of finding one that works
S**R
Good fit
Good fit just don't over tighten or you will strip them ,,great price
J**O
DIRECT REPLACEMENT FOR OEM PART ON 2012 MINI R56-S.
Order this to replace the snapped part on my R56-S. Had to heat a phillips screwdriver with a torch and press it into the center of the remaining part of the old screw until I could create something to grab. Took a few times but finally was able to turn it out with screwdriver without damaging anything else or taking a ton of stuff apart. Once out, this new unit went right in with no issues. Sealed up great! I have an extra now but hopefully wont need it soon.