1. Trailer Coupler Locks
  2. Tow Ready
  3. Latch Lock
  4. Keyed Unique
  5. 3/4 Inch Span
  6. Universal Application Lock
Trailer Coupler Lock - Butterfly Style

Trailer Coupler Lock - Butterfly Style

Item # 3008
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Trailer Coupler Locks
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3008 - 3/4 Inch Span Tow Ready Trailer Coupler Locks
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Lowest Prices for the best trailer coupler locks from Tow Ready. Trailer Coupler Lock - Butterfly Style part number 3008 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (65)
  • Q & A (9)
  • Videos (1)
  • Photos
  • Used (1)
  • Why etrailer?

Tow Ready Trailer Coupler Locks - 3008

  • Tow Ready
  • Latch Lock
  • Keyed Unique
  • 3/4 Inch Span
  • Universal Application Lock


Butterfly style trailer coupler lock. Works with most straight tongue style couplers. Includes two keys.

  • 1/4" pin diameter
  • Spans 3/4"


Tow Ready by Draw-Tite, Hidden Hitch and Reese # 63225




California residents: click here


Video of Trailer Coupler Lock - Butterfly Style

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Tow Ready Trailer Coupler Locks - Latch Lock - 3008 Review

Well show you the operation of the lock, its pretty easy. The key goes in and it works like a screwdriver. It just unscrews like so, then we can put it on our coupler. You put this through the lock hole on the coupler, which is typical of these latch style couplers. It just goes through then screw it together with the key, back it off a little bit with a turn. There you have it, locked into place and on the ball. Thats part # 63225 or #3008, the Tow Ready coupler lock.


Customer Reviews

Trailer Coupler Lock - Butterfly Style - 3008

Average Customer Rating:  4.5 out of 5 stars   (65 Customer Reviews)


- 3008
by:

Product works as described and is good quality 510969



- 3008
by:

Great product. Fantastic turnaround ti me. 149325



- 3008
by:

This was a small disappointment in my order. When using the lock the first time, I noticed the pin was not fully seated in the lock. Basically the pin is supposed to be seated and permanently set in one side of the unit. As you turn the key the pin travels with that half of the lock. I had to pound the pin into the hole. Now the lock works as advertised. I think it will work fine on the trailer. I won't have to return the lock. That being said, if security is paramount to you, this is not high security. This is more of just a deterrent. 177479



- 3008
by:

Looks like a good, little lock. 375510



- 3008
by:

Like the compact design. Works well. 915179



- 3008
by: 11/11/2020

Works great thanks 5 star 910665



- 3008
by:

I was completely satisfied with your service. Accurate tracking was available during the entire process. 828327



- 3008
by:

Using these to lock hitch pins in lieu of a locking hitch pin. They work great. 822690



- 3008
by:

Lock works great and does a good job securing my trailer 807955



- 3008
by:

Using it to lock my 3/4" hitch pin. Works and fits perfectly. 768162



- 3008
by:

Works perfect 758637



- 3008
by:

Product appears sturdy/well made. Only time will tell if it will hold up to the weather/elements. 725777



- 3008
by:

Extremely fast shipping and fantastic product. 725734



- 3008
by:

etrailer is such a good company to buy from I hate to write bad review on such a small item. The lock jammed with the key in it and I had to cut it off about the fifth time I used it. etrailer however will always be my go to for trailer products this was just a fluke occurrence. 722938



- 3008
by:

Excellent product. Fair price and quick delivery. 694529



- 3008
by:

Well I haven't been able to use them yet. I opened them up to try them and 1 wouldn't turn to open up. I still haven't used them yet. 1 worked fine and the other was turned to far and when it arrived it wouldn't turn at all. I sprayed it with WD-40, and nothing. 609785



- 3008
by:

Year later still works great for locking gooseneck hitch and pins. One key showed up broken, oddly but no matter. I Love etrailer. Going to get more for the latches that slide over a pin hole like on the back of cargo trailers at the ramp. These ride upright so they don't slam up against the trailer. 588672



- 3008
by:

Looks to be of very good quality. I recommend it. 581386



- 3008
by:

As expected. 569682



- 3008
by:

Exactly as described. Good value. 549439



- 3008
by:

I owned a Fulton butterfly lock that served me well for 25+ years which finally gave out. Right out of the package I was somewhat disappointed with your product as the keys are not brass as the photo depicts and the lock's color appears to be painted. Time will tell if it the performance meets my expectations. Thank you. 543532



- 3008
by:

Received product. -- looks good 542342



- 3008
by:

Simple, effective, good for the price 462900



- 3008
by:

This lock was purchased to lock the load bearing pin on a Bulldog BX-1 gooseneck tube (the tube portion, not the coupler itself, since my entire tube was stolen). There is not a locking pin manufactured to Bulldog's knowledge that suits these needs. Standard coupler locks are 1/4" shank usually, and the end of the load bearing pin has a .20" hole for the retainer pin. Bulldog sees no reason why it couldn't be drilled out to support a 1/4" coupler lock that will fit on the end of the 3/4" diameter load pin. I have not yet performed this action but will upload pics when complete. May even get a 5th star if all goes well. 455173



- 3008
by:

Purchased a Drop-Tail Trailer without a Trailer Jack. etrailer recommended the products, mailed them FREE & got everytrhing in TWO DAYS. Installed without any issues. Highly Recommend!! 454119


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Ask the Experts about this Tow Ready Trailer Coupler Locks

  • Recommended Trigger Lock Replacement Keys or Keyed Alike Options
    The Trailer Coupler Lock - Butterfly Style # 3008 do not have specific key blanks available or a keyed alike option. You would need to simply have a similar key blank cut for replacement or spare keys. If you are wanting the trigger latch lock to be keyed alike, we don't have the butterfly style option, but I instead recommend the 7/8 inch span # e98889 or the 1/2 inch span # e98885.
    view full answer...
  • Recommended Trailer Coupler Lock for a 2018 Keystone Passport 2520RL
    The majority of the butterfly coupler locks like part # 3008 have a 3/4" wide span. If the butterfly coupler lock that you previously used was too tight then chances are this one will be too tight as well. I recommend using a straight pin style lock like part # e98889 which has a 7/8" span with a 1/4" diameter pin. This coupler lock can also be keyed alike to a trailer hitch lock like part # e98880 if both were ordered at the same time. I have attached a review video of the coupler...
    view full answer...
  • Coupler Lock for an Atwood Bottom Mount Trailer Coupler
    You have a bottom mount coupler sometimes called an underslung coupler. The coupler lock we recommend for this type of coupler is # 3008. It actually locks the latch in place and will not allow it to open to fit a ball inside. The Master Lock coupler lock # 3784DAT is not likely to fit due to the design of the coupler.
    view full answer...
  • Recommended Lock for Underslung Coupler on 2018 Jayco Trailer
    Your new 2018 Jayco trailer has a bottom mount or underslung coupler. For a lock that will work well, I recommend the Atwood AMPlock Underslung Coupler Lock # AT89006. This cast iron lock is designed specifically for underslung couplers and will help deter theft by blocking the ball socket and the surrounding flat lip. It features a rotating-disc-tumbler lock that provides maximum security with nearly a million possible key codes. It will fit flat-lipped couplers for 2-5/16 inch balls with...
    view full answer...
  • Coupler Lock to Protect a Boat Trailer Both at Home and at the Boat Ramp
    What you could use is the HITCH-LOCK, # DL13980. With the plate angled up, the trailer is protected from someone trying to hitch up to it. When towing a trailer with the plate angled down, it prevents someone from removing the hitch ball already in the coupler. It can be used with the trailer hooked up or not. You will need to use a pad lock like # 37DAT with this HITCH-LOCK. It is also zinc plated for corrosion resistance so it would be good for a boat trailer. For a lock that can be...
    view full answer...
  • Does Master Lock Heavy-Duty Coupler and Latch Lock Combo # 3784DAT Fit a 2 Inch Coupler
    That's interesting, because Master Lock coupler lock # 3784DAT does indeed fit a 1-7/8 inch. 2 inch, and 2-5/16 inch coupler. Even the instructions from their site show it fitting a 1-7/8 and 2-5/16 inch coupler. They don't show the 2 inch because it does not require any special steps (there is a little insert, included, that has to be on for 1-7/8 inch and UFP couplers but removed otherwise). But this may not be the best option for coupler # BD43805W0317. It doesn't have a flange...
    view full answer...
  • Trailer Coupler Lock for a Coupler with Large Lip
    You can use Master Lock # ML389DAT for coupler # CTA-280. Another option is to use a latch lock so that the latch cannot be opened. Most latches, if they can accept a lock, will take a 1/4 diameter pin such as # e98888 or # 3008.
    view full answer...
  • Will a 7-Way Round to 6-Way Adapter Work with a Semi Tractor
    A 7-way round pin on a semi tractor normally has different functions than a 7-Way round pole found on something like an RV. I have included a picture showing what the functions are on the 7-Way part of the adapter. If this matches what your semi tractor has then it will work properly. If your 7-Way has different functions, which you can check by using a circuit tester such as # 3008, then you will need to re-wire the 7-Way to match the adapter or install a different 7-Way that will match.
    view full answer...
  • Replacement Lock for Snowbear Trailer Coupler
    The Pin and Clip For Class 3, 4 and 5 Trailer Hitch Receivers, item # PC3, is the pin needed to install a ball mount in a Class 3 or larger 2 inch receiver. I checked out the Snowbear trailer website and saw that the majority of their trailers have a standard 2 inch ball coupler. We have coupler locks that will fit this style of trailer coupler. The Curt Coupler Safety Pin, 1/4 inch, item # K-8P, is a no frills safety pin that will get the job done and if you want a measure of security...
    view full answer...

Do you have a question about this Trailer Coupler Lock?


Used Items Available

Condition: Like New

Notes: May have damaged packaging or minor cosmetic blemishes.

Our Price: $16.95
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Info for this part was:

Expert Research:
Mike L
Expert Research:
Robert G
Expert Research:
Michael H
Expert Research:
Adam R
Updated by:
Laura H
Updated by:
Alexander C

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