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🚗 Bleed the heat, not your wallet — stay cool with Dorman precision!
The Dorman 902-404 Coolant Air Bleeder Screw is a premium replacement part engineered from high-temperature alloy steel to ensure a leak-proof seal and perfect OEM fit. Trusted for over a century, Dorman delivers durability and reliability with a limited lifetime warranty, making it an essential upgrade for maintaining optimal engine cooling performance.
| ASIN | B009XA8DQ6 |
| Best Sellers Rank | #96,366 in Automotive ( See Top 100 in Automotive ) #17 in Automotive Replacement Wheel Cylinder Bleeder Brake Screws |
| Brand | Dorman |
| Color | Black |
| Compatible Groove Diameter | 0.25 Inches |
| Customer Reviews | 4.5 out of 5 stars 433 Reviews |
| 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 Style | Fillister |
| Head Type | Fillister |
| Included Components | Per Item Description |
| Item Diameter | 0.25 Inches |
| Item Dimensions | 1.2 x 2.8 x 2.8 inches |
| Item Weight | 0.05 Pounds |
| Item dimensions L x W x H | 1.2 x 2.8 x 2.8 inches |
| Manufacturer | Dorman Products |
| Material | Metal |
| Material Type | Metal |
| Metal Type | Alloy Steel |
| Model | 902-404 |
| Number Of Items | 1 |
| Number of Pieces | 1 |
| Part Number | 902-404 |
| Point Style | Self-Piercing Point |
| Screw Head Style | Fillister |
| Screw Point Style | Self-Piercing Point |
| Set Screw Thread Type | Unified National Coarse (UNC) |
| Size Name | Stock |
| 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
C**K
Just what you will need if you have the plastic thermostat housing
Works as they should
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.
D**T
Coolant bleeder
They are plastic . So easy to strip out have a spare one on hand. Fits fine.
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.
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
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
Fit As The OEM
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
Inexpensive
Did the required repair. Still holding, no issues to report.
R**Y
It says it won’t fit my vehicle but it does
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
A good replacement they fit perfect and I haven't had any issues with them yet
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
Fast shipping
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 month ago
4 days ago