Mishimoto MMCLAMP–CTWG–54GD Constant Tension Worm Gear Clamp, 1.26"–2.13" (32mm–54mm), Gold

Used for car coolant hoses. Application was irritating at first. If you remove the clip from the center, you have to turn the bolt to loosen before re-inserting it and the teeth will catch that way. Leaks are gone and these are very heavy duty. Amazing.

Holds well and feels secure, recommend you use with a lower torque impact as using a wrench may be tough

Many moons fighting with non adjust spring clamps on opv but if possible always use these type on my own. Why? Unless you have an older open bay engine you will encounter situations where it’s near impossible to get fancy tools to work and yes got knipex, got lisle, so, all good tools but when it s 100 above or 25 below and you need it done, with out lifts, wherever, its mighty convenient to turn that 10 mm screw . Tighten up ,look for clamp indent on hose and your good. Thesetypes tend to adjust for expansion contraction . Used other brands and I’ll give these a try. Just look for the hose S you never ever want to fight with. A Note on old worm clamp wo tension adjust , still ok for rubber to metal fitting but these type are necessity if any plastic fittings are involved . Easy access areas just leave Oem stuff they come off easy even with channel locks. I’ll edit if any issue. Edit! no info on torque settings !, these need 7-8 lb torque ,place screw for easy access above below etc. Because Had to do in stages . May be ok product but this is a bit much 3 star . Indicate torque on install etc or don’t sell these . Breeze Carr,gates, neverhad issues like this. This aggravation negates benefit for ordinary customers at best! at worst? Update year on: you will need to re tighten 1-2 turns they will weep. Always Ensure you have easy access on rad hose to check and snug up. On the vehicle involved a long access extention set up from the top to lower rad hose allows easy checks and is a good idea for all installs of screw on clamps and constant tension alike with plier use also . But as noted have not seen this in other brands. Might consider change out doin this way too long so if constant maintenance is your bag these are for you! But if your old like me or just want to do things right once maybe look elsewhere. A final note: this is especially annoying when I occasionally see other past change outs done that are still going strong after 5-10 years different brands min you and you wonder , hmm.

They did cut down on leak from rad hose but there is still a small leak

I bought one of those chinese knockoff aluminum radiators, and the outlet pipe is a little too small for the radiator hose and no matter what style clamp I used it still leaked. I bought this one because it looked heavy duty, and so far no leak! I've tried regular clamps, crimp clamps, t-bolt clamps.. nothing worked. So hopefully we don't have any more leaks, because I really didn't want to change the radiator again!