Many are probably of aware how widely the CH751 lockset is used on Genset cabinets, RV's, lock boxes, bins on bucket trucks and other vehicles. In some situations it may be good to have a CH751 key and if you have a lockset using a CH751 key you may want to change it...Added..Because I have a key The locks on our 1990 Kit were ch751, our 2010 Keystone used CH751, our new 2017 Palomino uses CH751. Walter. It’s a number stamped on your RV storage door lock key. Locksmith in Snohomish says: June 27, 2013 at 05:01. The CH751 is 'the most popular key in the united states'. Do you know what CH751 means? What I found out is take your other hand and push in on the door close to the lock as you turn the key, seems to take the tension off the lock tab. Take a look right now. The CH751 keys are used by just about all RV manufactures for the storage compartments of all their lines of trailers. How to Replace The CH751 Lock. Go ahead. The CH751 is the most popular key that is used on most RV/Trailers out on the market today. Key code : CH751 At least this way I know it closes snug. I'm sure it comes up. We purchased and installed the cam locks on our Keystone and had no trouble with them. My CH751 key is hard to turn as well. Most of the RV industry uses the same keyed lock for the compartments. I'm sure that many readers would find this post a useful one. If your RV has CH751 locks and keys on the storage compartment doors, you are not alone. We found out that my CH751 key will open the time clock at a local restaurant when thev owner couldn't find her key. We are in the process of setting up our new Palomino and WILL be ordering a set of these fine locks. Precut key with multiple uses including key switch locks for lifts/elevators and motorhome/caravan compartment doors. If you do want to change them out, any locksmith can re key them or you can buy more locks keyed alike at most larger hardware stores, or they can order them for you. — ToyBoxCovers.com . It also opens the sprinkler controllers at my townhome complex and lord knows what else. After the first lock or two, the rest should only take a few minutes each. The CH751 key that opens many bins is sold on Ebay! Like most people here I've seen Deviant Ollam's talk on common keys, and I've seen the set of … At least that's what mine does, just been too lazy to take the lock apart and bend the tab a bit. Thanks for sharing this one. CH751 key. Repeat these steps for each CH751 lock you want to replace. WHAT IS CH751? You may also be surprised to know how many doors your door key will work in to. It is a very popular key code for outside storage door locks used on most class A, B and C recreational vehicles including but not limited to: diesel pushers, campervans, motorhomes, truck campers, popup campers, travel trailers, hybrid trailers, fifth-wheels, toterhomes and toy haulers. I'm curious if anyone knows how popular it is elsewhere? I take care of more than a dozen large buildings and most have 250 KW up to 500KW generators and guess what key they all use, that's right CH751. CH751 key, used for miscellaneous cam locks and some freight EUD locks.. And it’s the same number stamped on almost every RV storage door lock key. From the factory, most RVs use the same key and lock combination for all the external storage doors. Step 1: Remove the latch (cam) Use a screw driver to remove the latch (cam) and adjusting washer from the back of the lock.