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🚗 Keep your engine cool and your confidence high with MotoRad MT-300!
The MotoRad MT-300 is a professional-grade engine coolant system pressure tester featuring a large, color-coded gauge that reads up to 30 psi in both kPa and pounds. Designed for safety and ease of use, it includes a pressure release bar for controlled venting. Compatible with a broad range of popular vehicles, it combines durable rubber construction with a limited lifetime warranty, making it a trusted tool for accurate radiator pressure testing.





| ASIN | B0067UE6IY |
| Best Sellers Rank | #72,158 in Automotive ( See Top 100 in Automotive ) #24 in Cooling & Water Pump Tools |
| Brand | MotoRad |
| Brand Name | MotoRad |
| Customer Reviews | 4.2 out of 5 stars 187 Reviews |
| Global Trade Identification Number | 00055644003009 |
| Included Components | MotoRad Pressure Tester |
| Item Dimensions | 13.25 x 8.88 x 3.75 inches |
| Item Type Name | Pressure Tester |
| Item Weight | 0.27 g |
| Item dimensions L x W x H | 13.25 x 8.88 x 3.75 inches |
| Manufacturer | MotoRad |
| Material | Rubber |
| Material Type | Rubber |
| Model | MT-300 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | MT-300 |
| UPC | 055644003009 |
| Unit Count | 1 Count |
| Warranty Description | Limited Lifetime |
K**N
Pressure tester for radiator
If you have a Jeep Wrangler, 2013 or any of the JK’s for sure I’m sure lots of Dodges this tool fits. My Jeep without adapters straight out of the box. And it works perfect. I left it on for one hour, and the needle never moved. So that damn good pressure. Most impressive tool the only thing I don’t like. Is there’s no way to dump the pressure and man when you dump the radiator pressure it comes out and makes a hell of a mess so be aware of that but it was worth it!!
K**H
Great product and great price.
As described. Works great.
T**S
Mt300 tester
That amazon says its a confirmed fit for 2003 ford ranger.It will not fit and you will have to buy a 50 dollar adapter very misleading
R**D
Works like it should.
Works like it should.
F**R
The most poorly documented product on the internet
Amazon stated that this fits my vehicle when it does not. I attempted to research and verify this before purchasing but there isn't any information to make this possible. There is no mention of an adapter being needed nor could I find any information about an adapter when I specifically looked for it. I know the ID and depth of the radiator cap but the manufacturer of this product doesn't supply any specifications to compare with. The manual included with the pressure tester has a list of possible adapters. Instead of actual dimensions, they use vague terms likes small neck or shallow small neck. Toyota is nowhere on the list. If it was, I wouldn't feel confident that it's the right adapter. There are 5 possible adapters for GM alone, 3 for VW. One adapter cost almost as much as the entire pump kit. This could be the best product in the world but it's useless without providing customers with the information they need to use it. I'll be shipping back the one that I received. It's useless. btw. The diameter of the rubber piece on the pump adapter is 38mm.
J**M
Great radiator pressure tester - made in USA. Very easy to use. Worked well with my 1998 Chevy Blazer LS 4 Door
In all honesty, I had not used one of these tools before and it took me a minute to get this one to line up correctly with my 1998 Chevy Blazer's radiator. I took on the task of replacing the radiator in my Blazer for the first time and I wish I would have bought one of these tools first. I test drove my blazer (made it about 10 miles) and a cooler line came loose and made a real mess and left yours truly, doing the walk of shame back home (covered in yuck) to get the tools needed to get the Blazer running again. My recommendation is to pressure test your vehicle's radiator in the driveway to save the long walk home. This tool worked very well and provided me with the confidence I needed to take my Blazer back on the road again, without fear of another cooler line coming loose and leaving me stranded or worse - ruining my engine. This tool once lined up correctly with your radiator, is very easy to use and worked well even for an inexperienced wanna be mechanic like me. The molded case for this pressure tester was very good and the documentation was adequate enough for a quick start in this device's use. The quality of workmanship for this pressure tester is excellent.
C**A
Helped me find my leak
Worked as should for old trucks,, w250
B**D
The best pressure tester out there PERIOD
The best pressure tester out there PERIOD. So many new designs and master kits but none of them can compete with the durability of this. If you don't like that this doesn't come with all adapters then buy the adapters you need separate. The price on this is killer for the quality!
J**N
Good Quality Tester
Quality pressure tester that works on 5.0 1991 Mustang. Very easy to use. Was going to buy less expensive tester but after reading those reviews I opted for this one. Glad I did.
G**Z
Para poder diagnosticar
Excelente para hacer prueba de fugas
R**N
Gauge de Preston
Vérificateur de fuites de Preston fonctionne très bien très belle achat merci
D**K
Junk.
Someone swapped out their old crusty one for a new one and returned it. Unfortunately, I will have to return it as well.
O**B
Well made tool
Great tool and well made. I only wish the hose was 6" longer for easier operation.
Trustpilot
2 days ago
1 month ago