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  1. Trailer Tongue Lock
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Fastway Universal Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers - Key 312
Fastway

Fastway Universal Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers - Key 312

Part Number: FA86-0015-312
$54.30
Trailer Tongue Lock
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Protect just about any trailer from theft with this universal coupler lock, which uses a unique "ball" and shackle to fit a variety of coupler sizes and styles. Secures trailer when it is not in tow. Great Prices for the best trailer tongue lock from Fastway. Fastway Universal Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers - Key 312 part number FA86-0015-312 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (935)
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Fastway Trailer Tongue Lock - FA86-0015-312

  • Fits 1-7/8 Inch Ball
  • Fits 2 Inch Ball
  • Fits 2-5/16 Inch Ball
  • Surround Lock
  • Keyed Alike
  • Fastway
  • Universal Application Lock

Protect just about any trailer from theft with this universal coupler lock, which uses a unique "ball" and shackle to fit a variety of coupler sizes and styles. Secures trailer when it is not in tow.


Features:

  • Universal design protects most trailers from being towed away
    • Multistep Uni-ball fits into any size ball coupler
    • Unique bend in reversible shackle lets it snug up tight to most types of couplers or coupler latches, including:
      • A-frame, straight channel, round tongue, flat plate and surge-type couplers
      • Trigger, pin, thumb and wraparound yoke latches
  • Tube key lock cylinder provides better security than standard key mechanisms
    • Harder to pick
    • More difficult to duplicate keys
  • Anti-drill pin discourages attempts to drill out the lock
  • Bolt-blocked locking system prevents thieves from prying the lock open
    • Uses internal bolts to engage the shackle's notches
  • Hardened, chrome-plated shackle and nickel-plated housing
  • 2 Keys included per lock
    • Key number: 312
  • Quantity: 1 lock


Specs:

  • Fits most 1-7/8", 2" and 2-5/16" ball couplers
    • Maximum coupler width: 4-1/2"
  • Shackle diameter: 5/8"
  • Limited lifetime warranty


Close up of bolt block mechanism

This close-up bottom view shows the solid steel bolt in the locked position where it would engage the shackle. (The shackle has been removed to show the bolt.)


DT25013 in useDT25013 in use
DT25013 in useDT25013 in use
DT25013 in useDT25013 in use

The above images show the lock in use on several types of trailer couplers


Dimensions of DT25013


86-00-5015-312 Fastway (Diversi-Tech) Maximum Security Trailer Coupler Lock - Key # 312





Customer Satisfaction Score:


Customer Reviews

Fastway Universal Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers - Key 312 - FA86-0015-312

Average Customer Rating:  4.7 out of 5 stars   (935 Customer Reviews)

Protect just about any trailer from theft with this universal coupler lock, which uses a unique "ball" and shackle to fit a variety of coupler sizes and styles. Secures trailer when it is not in tow.

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See what our Experts say about this Fastway Trailer Tongue Lock

  • Demco 21K EZ Latch DM6125-81 Coupler Lock Solution
    Since the Demco Trailer Coupler # DM6125-81 that you have does not have a lip around the edge of the coupler you'd need to go with a different coupler lock instead of the part # AMP56FR that you referenced. Instead you'd want a coupler lock like the Fastway part # FA86-0015-312 which is compatible.
    view full answer...
  • Best Coupler Lock Recommendation for Atwood Yoke Coupler
    For the yoke style couplers my favorite coupler lock is the Fastway part # FA86-0015-312. We have found that this is the most universal of the locks we carry and also works the best. It will work great on your yoke coupler part # AT80072. I attached a picture that shows it installed on a similar yoke coupler as well.
    view full answer...
    Image 1 for
  • Recommended Locks for 2-5/16-Inch Squeeze-Latch Type Trailer Coupler
    To secure your squeeze-latch type coupler such as # CTA-280 you can use a latch pin lock such as # 2847DAT with a coupler lock such as # FA86-0015-312 or the Master Lock # ML389DAT.
    view full answer...
  • What is the Difference Between Fastway Coupler Locks FA86-0015-318, FA86-0015-312 and FA86-0015-317
    Basically the three part numbers you mentioned give you the same lock but the different part numbers allow you different options for the key. If you order the part # FA86-0015-312 you get the key number 312, or the part # FA86-0015-317 you get the key number 317, and if you order the part FA86-0015-318 you get key number 318. This is so you can decide if and when you want your locks keyed alike. The part # e98882 can not be keyed to the Fastway locks as it's a different brand and uses...
    view full answer...
  • Bulldog Coupler with Wedge Latch Coupler Lock Recommendation
    The Fastway Coupler lock part # FA86-0015-312 is the most popular coupler lock design we have because it easily fits nearly all coupler designs including the one you sent in a picture of. This would be the best option we can recommend.
    view full answer...
    Image 1 for
  • Recommended Trailer Coupler Lock For 5 Wide Coupler
    The surround-type trailer coupler locks can only fit couplers that have a maximum width of 4-1/2". For a 5" wide coupler you will need to use a latch lock such as the Master Lock Trigger Style Coupler Lock for 1-7/8" and 2" Couplers # 605DAT or Trailer Coupler Lock # e98886
    view full answer...
  • Is Fastway FA86-0015-315 Universal Trailer Coupler Lock Available Keyed to Key # 312
    You certainly can, just order 4 of part # FA86-0015-312, which will get you 4 of the Fastway Maximum Security Universal Trailer Coupler Locks keyed to key number 312. The lock is compatible with couplers for 1-7/8, 2 or 2-5/16 inch trailer balls. The # FA86-0015-315 lock you'd looked at is keyed to key number 315, so it wouldn't use your desired key. If you click the provided link, you can see a product demonstration video featuring the lock.
    view full answer...
  • Recommended Trailer Coupler Locks Keyed Alike For A Number Of Trailers
    We have the Fastway Universal Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers - Key 312 # FA86-0015-312 that you can order in any quantity. They will all have the same key number 312. I've attached a photo with measurements. I've also attached a video of various trailer couplers for you. This will secure the trailer when disconnected from the tow vehicle. If you want trigger couplers and ball mount locks, I recommend the etrailer Trailer Hitch Receiver & Coupler Lockset - 2" Trailer...
    view full answer...
    Image 1 for
  • What is the Height of Fastway Coupler Lock DT25013KA
    The Fastway # FA86-0015-317, # FA86-0015-312 and the # FA86-0015-318 are all the same locks and will be the same size. The reason for the different part numbers are that the # FA86-0015-317 and FA86-0015-312 and # FA86-0015-318 are locks that are keyed alike. Their key number matches the last 3 digits of the part number. So the part # FA86-0015-318 has key number 318. If you want keyed alike likes, you just order multiple of the same key number. Check out the video to see more.
    view full answer...
    Image 1 for
  • Recommended Trailer Coupler and Trigger Lock
    If the Fastway Universal Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers - Key 312, # FA86-0015-312, coupler is not snug, it may not be installed correctly. I've attached a video review for you to check out and make sure. If it is installed correctly and still doesn't meet your needs, then I recommend a different style of coupler lock like the Master Lock Trailer Coupler Lock - 1-7/8", 2" and 2-5/16" Ball Couplers, # ML389DAT. You may also be interested in a trigger lock like the Master...
    view full answer...
  • Can Fastway Universal Coupler Locks Be Keyed the Same
    I confirmed with Fastway that yes, if you order multiple of these coupler locks with the same key code, they will be keyed the same. For example the Fastway Universal Coupler Lock # FA86-0015-306 uses Key 306 while the Fastway Universal Coupler Lock # FA86-0015-312 uses Key 312. As long as your ordering multiple coupler locks using the same numbered key you will be fine. I have have also included a review video for additional information on the coupler lock.
    view full answer...
  • What Type of Metal is Fastway Universal Coupler Lock # FA86-0015-312
    The Fastway Universal Coupler Lock # FA86-0015-312 that you referenced is made from hardened steel for the shackle and diecast steel for the housing and is designed to withstand most attacks. It would take some serious time to defeat this with a pry bar and sledgehammer. The sledge would also make quite a bit of noise which thieves generally try to avoid.
    view full answer...
  • Coupler Lock Recommendation for a Square Trailer Coupler
    The Fastway Universal Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers # FA86-0015-312 should work just fine for your squared coupler. If you check out the attached photo you can see when we installed this on a squared coupler. I have also attached a review video where we installed this on a variety of couplers that you can check out.
    view full answer...
    Image 1 for
  • Coupler Lock Recommendation for 2017 Jayco Jay Feather 22FQSW
    We have found that the Fastway coupler lock part # FA86-0015-312 is very universal and can basically fit most couplers on the market. If you check out the review video I attached you can see all of the coupler style it works on.
    view full answer...
  • Availability of Two Sets of Keyed Alike Universal Trailer Coupler Locks
    I'd recommend the Fastway Universal Coupler Lock, part # FA86-0015-312 and # FA86-0015-310. Both are available in multiple units, and would give you two keyed alike sets, with both sets using a unique key. The lock is compatible with 1-7/8, 2 or 2-5/16 inch couplers.
    view full answer...
  • Replacement Key for Fastway Universal Coupler Lock with Key Code 312
    I'm not quite sure I'm understanding which part you're looking for a key for, but the # FA-KEY-312 you were looking at is designed to replace the key for a Fastway Universal Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers - Key 312 # FA86-0015-312 with key number 312. If that's the part you're looking for, then you've found the correct key. If that's not what coupler lock you've got, let me know what you do have and I can see if there is a replacement key available for it.
    view full answer...

Do you have a question about this Trailer Tongue Lock?


Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Chris R
Installed by:
Chris R
Employee Hayden R
Installed by:
Hayden R
Employee Wilson B
Updated by:
Wilson B
Employee Adam E
Video by:
Adam E

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