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🔧 Upgrade your cooling system with confidence — don’t let leaks slow you down!
The Dorman 902-404 Coolant Air Bleeder Screw is a premium replacement part crafted from durable alloy steel to endure high temperatures and pressures in your vehicle’s cooling system. Designed to match the original equipment’s fit and function precisely, it ensures a leak-free seal and easy installation. Backed by over a century of Dorman’s automotive expertise and a limited lifetime warranty, this bleeder screw offers lasting reliability and peace of mind for professional-grade vehicle maintenance.
| ASIN | B009XA8DQ6 |
| Best Sellers Rank | #48,391 in Automotive ( See Top 100 in Automotive ) #6 in Automotive Replacement Wheel Cylinder Bleeder Brake Screws |
| Brand | Dorman |
| Color | Black |
| Compatible Groove Diameter | 0.25 Inches |
| Customer Reviews | 4.5 4.5 out of 5 stars (418) |
| Drive System | BLEEDER |
| Exterior Finish | Ready To Paint If Needed |
| Fastener Size | Screws With O-rings |
| Fastener Type | Screw |
| Finish Types | Unpainted |
| Global Trade Identification Number | 00019495366928 |
| Grade Rating | Premium |
| Head Type | Fillister |
| Included Components | Engine Coolant Bleeder Screw |
| Item Diameter | 0.25 Inches |
| Item Dimensions | 1.2 x 2.8 x 2.8 inches |
| Item Weight | 22.68 g |
| Manufacturer | Dorman Products |
| Material Type | Metal |
| Metal Type | Alloy Steel |
| Model | 902-404 |
| Number of Pieces | 1 |
| Part Number | 902-404 |
| Screw Head Style | Fillister |
| Screw Point Style | Self-Piercing Point |
| Set Screw Thread Type | Unified National Coarse (UNC) |
| Size Name | Larger than 0.25 inches |
| Thread Class | 2A |
| Thread Coverage | Partially Threaded |
| Thread Size | oem |
| Thread Style | Right Hand |
| Thread Type | Unc |
| UPC | 019495366928 |
| Unit Count | 2.0 Count |
| Warranty Description | Limited Lifetime Warranty |
B**R
Better than oem
Fit like oem
S**F
Solid product, great price.
They come with new o-rings which is a plus. Arrived as expected, easy to install, working as designed. Good price 👌🏽 If you want something more durable, there are brass options available in the market.
C**K
Works like OEM - BMW X3 E83
Overtightened the bleeder screw on my e83 X3 after replacing thermostat. Ordered these from Amazon, delivered the next day. Been over a year since install, No issues.
D**T
Coolant bleeder
They are plastic . So easy to strip out have a spare one on hand. Fits fine.
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
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.
S**R
Good fit
Good fit just don't over tighten or you will strip them ,,great price
A**O
Good quality
Got the job done, seems to be better quality then factory ones.
K**O
I replaced my thermostat in my 2013 Jeep Grand Cherokee and damaged the bleeder screw and o-ring. I thought I would have to replace the complete OEM thermostat. These saved me. Fit just like the OEM. These come with the orings. And one spare bleeder assembly for the glove box!
D**L
Did the required repair. Still holding, no issues to report.
R**Y
I don’t think that the amazon vehicle match is accurate. I bought this and it fits my 2005 bmw 320i. It was a very convenient and easy fix instead of replacing the whole hose.
A**R
They fit great in my 2000 bmw 528i and I have had them for a couple months now and they have had no issues.
J**E
Doorman is a good product but unfortunately these will not work for the bleed screw on the coolant expansion tank on a lr3
Trustpilot
1 day ago
1 week ago