Locking Gas Cap
Thread Starter
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Cross-Country
Joined: Mar 2016
Posts: 83
Likes: 18
From: Washington
Locking Gas Cap
I have been looking for a locking gas cap for my 2015 F-250 6.2L,
I need one that has the groove for the tether and doesn't require the key to lock it back on.
Anyone already have one like this?
Had one for my F-150 but will not fit the F-250.
I need one that has the groove for the tether and doesn't require the key to lock it back on.
Anyone already have one like this?
Had one for my F-150 but will not fit the F-250.
Fleet Mechanic
Joined: Feb 2002
Posts: 1,483
Likes: 273
From: Tulare U.S.A.
On the newer trucks, you really don't need a locking gas cap. The filler hose design on the newer trucks makes it almost impossible to get a siphon hose down. Today, if someone wants to steal gas they drill a hole in your plastic gas tank and drain it.
Laughing Gas
Joined: Oct 2018
Posts: 998
Likes: 83
From: San Diego
I like the " Rescueman " with key slot for extra key.
No longer made but I have found 3 -4 on the intraweb
https://www.ebay.com/itm/284342120832
No longer made but I have found 3 -4 on the intraweb
https://www.ebay.com/itm/284342120832
Post Fiend
Joined: Nov 2001
Posts: 6,748
Likes: 118
From: Tallassee, ALabama
I know of no aftermarket locking gas cap that has the tether. Stant makes a locking gas cap in black, yellow (E85) or green (diesel) part number 10510, 10510Y or 10510G but none have the tether. The stant cap does not require the key to lock it back on.
Not sure if Ford or Motorcraft has one or not.
Not sure if Ford or Motorcraft has one or not.
Lead Driver
Joined: Mar 2004
Posts: 5,372
Likes: 108
From: Northern Indiana
I just replaced my locking cap w/key with a stock cap because I was tired of not having the tether. I feel your pain with wanting the tether. I just didn’t like setting the cap down in rain or snow.
Thread Starter
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Cross-Country
Joined: Mar 2016
Posts: 83
Likes: 18
From: Washington
I think I will go with leadmic's thought that they can't siphon the gas, and just keep the stock cap.
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Super Moderator
Joined: Dec 2011
Posts: 13,265
Likes: 6,036
When I bought an OEM locking fuel cap from Ford, with it's own factory tether and two keys, I was worried about what people might put IN the tank (sugar / water / sand) by (vindictive vandals / parking lot pranksters / road rage revengers) just as much what fuel thieves might take OUT of the tank.
And even when attempts at siphoning fail, how dirty was the hose they stuck inside in the attempt?
I recall when looking up the locking fuel cap at Ford, that there many more locking gas caps available for gasoline vehicles than there were fuel caps for diesel vehicles.
Since I bought the locking cap from Ford the same year I bought the truck (21 years ago), I no longer have a part number handy. Besides, you would need a different part number for a gasoline application.
As long as the fuel neck flange isn't "capless", Ford likely has several iterations of tethered, locking gas caps that will work (match the correct thread opening of the fuel neck, and not set an evaporative emissions code).
It will take some research to find them though.
And even when attempts at siphoning fail, how dirty was the hose they stuck inside in the attempt?
I recall when looking up the locking fuel cap at Ford, that there many more locking gas caps available for gasoline vehicles than there were fuel caps for diesel vehicles.
Since I bought the locking cap from Ford the same year I bought the truck (21 years ago), I no longer have a part number handy. Besides, you would need a different part number for a gasoline application.
As long as the fuel neck flange isn't "capless", Ford likely has several iterations of tethered, locking gas caps that will work (match the correct thread opening of the fuel neck, and not set an evaporative emissions code).
It will take some research to find them though.
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