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  1. Trailer Hitch Lock
  2. InfiniteRule
  3. Fits 3 Inch Hitch
  4. Standard Pin Lock
  5. Keyed Unique
  6. 3-7/8 Inch Span
InfiniteRule Hitch Lock for 3" Hitches - 3-7/8" Span - Stainless Steel

InfiniteRule Hitch Lock for 3" Hitches - 3-7/8" Span - Stainless Steel

Item # 34061074-D
Our Price: $37.36
Trailer Hitch Lock
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.74 lbs
In Stock
34061074-D - Keyed Unique InfiniteRule Trailer Hitch Lock
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Heavy-duty, stainless steel hitch lock provides superior security when locking a ball mount or accessory to your 3" hitch. Third-party-tested pin has a 42,000-lb shear strength. Flush design. Great Prices for the best trailer hitch lock from InfiniteRule. InfiniteRule Hitch Lock for 3" Hitches - 3-7/8" Span - Stainless Steel part number 34061074-D can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (37)
  • Q & A (0)
  • Photos
  • Why etrailer?

InfiniteRule Trailer Hitch Lock - 34061074-D

  • Fits 3 Inch Hitch
  • Standard Pin Lock
  • Keyed Unique
  • InfiniteRule
  • 3-7/8 Inch Span
  • Stainless Steel

Heavy-duty, stainless steel hitch lock provides superior security when locking a ball mount or accessory to your 3" hitch. Third-party-tested pin has a 42,000-lb shear strength. Flush design.


  • Flush-style hitch lock secures your ball mount or accessory to your 3" hitch
    • Also works with BulletProof adjustable ball mounts to secure your ball mount platform to your ball mount
  • Heavy-duty stainless steel construction
  • Grooved pin head is easy to grab
  • O-ring protects internal components from dirt and grime
  • Weather-resistant, tethered dust caps keep water and debris out of keyways
  • 2 Keys included
  • Made in the USA


  • Application: 3" x 3" trailer hitch receivers
    • Also fits ball mount platform on BulletProof adjustable ball mounts
  • Shear strength: 42,000 lbs
  • Pin diameter: 5/8"
  • Dimensions of pin:
    • Overall length: 6-1/2"
    • Inside pin length (span): 3-7/8"
  • 1-Year warranty

Extensive Testing

InfiniteRule products undergo extensive third-party testing to determine shear strength. The shear strength is determined by placing the locking pin in a stress position and subjecting it to increasing force until a required proof load (maximum force received without deformity) is met or the pin fails. This lock has a shear strength of 42,000 lbs.

61074-D Infinite Rule Security, Inc. Trailer Hitch Receiver Lock - Flush Design - 5/8" Diameter - 3-7/8" Span - Stainless Steel

Replaces Infinite Rule 34061034-D

Replaces Infinite Rule 34065034

Customer Satisfaction Score:

Customer Reviews

InfiniteRule Hitch Lock for 3" Hitches - 3-7/8" Span - Stainless Steel - 34061074-D

Average Customer Rating:  4.9 out of 5 stars   (37 Customer Reviews)

Heavy-duty, stainless steel hitch lock provides superior security when locking a ball mount or accessory to your 3" hitch. Third-party-tested pin has a 42,000-lb shear strength. Flush design.


Confidence inspiring solid piece of SS. The lock is also low profile so it doesn’t look awkward or gangly. My only complaint is the key is used as a screwdriver of sorts to allow one to unscrew the lock key. This is challenging while on a keychain of any kind. The weather sealing o-ring gave up at first push through the hitch pin hole, but it made screwing the lock body on/off more difficult anyway. I would buy it again because of the simplicity and sleekness.


This is the best lock set up for a 5th wheel that I have ever seen. I would buy it again.


Easy to install. No fussing with keys, just push it on.


Good lock. Little different design, it screws on with the key inserted. Should be durable.

Great. Havent removed it, but my hitch hasnt been stolen either
Jwb - 04/17/2021


Great service, communication and follow up from the sales and customer service teams. Hitch lock worked as advertised on my B&W hitch I purchased from Etrailer.


Looks to be good stainless steel construction. Lock is simple to operate and should not rattle. It looks pretty clean after installed. Works well and the length is appropriate for my 3" hitch. I could have possibly gotten away with the 3-5/8" model but wanted to be sure. Application is 2019 F-250 with 3" hitch.

Very good - no rust or rattle
Alex - 01/10/2020


Easy to use.


Really nicely made. Rubber cap seems thick and sturdy. Fits our Ram 3500 perfectly. Just as advertised and arrived on schedule. Always happy with the service from these folks!

Still working as good as it did on day one. No problems!
Keith - 07/18/2020


no rust still works well


Had this lock for over a year now, and it is still functioning as designed. Since I remove the hitch each time we travel, it gets utilized on a regular basis. I would definitely buy this product again if needed and can recommend it based on my hands on experience with it.


Nice service


Great product! Great quality! Horrible customer service. I spent 350$ on a hitch and forgot to order this called back right away to add this and they wouldn't so I had to pay for separate shipping after I just ordered a 350$ hitch.


Very pleased, this is exactly what I was looking for. You can tell instantly that this this is built to last a lifetime, best hitch lock I've ever owned, and I've got a box full.


Etrailer stepped up huge. My first order was lost by the mail service and these guys sent another no questions asked. Excellent customer service!


Well made lock pin , and it is made in the USA


Great price and wonderful product. Longer that ones sold in store turns on instead of push which gives the room to clear the receiver.


seems to work as described so far!


Works great functions exactly as demonstrated by etrailer


Joe - 05/06/2022


great lock

Perfect, no problems in all weather worth the price
Richard S - 04/25/2020


Great place to shop and the staff members are very helpful.




Sturdy Hitch, Fast delivery


Show More Reviews

See what our Experts say about this InfiniteRule Trailer Hitch Lock

  • What Locking Hitch Pin Works with the BulletProof Hitches Ball Mount # HD308?
    For a great locking hitch pin that fits the BulletProof Hitches Adjustable 2-Ball Mount for 3" Hitch - 8" Drop/Rise HD308, I recommend the InfiniteRule Hitch Lock for 3" Hitches - 3-7/8" Span # 34061074-D. This hitch pin comes with a stainless steel design and 2 keys for the lock. The grooved pin head is easy to grab to insert/remove from the ball mount.
    view full answer...
  • Strongest Trailer Hitch Receiver Locking Hitch Pin
    While locking hitch pins aren't rated for capacity like a hitch, the strongest is the InfiniteRule hitch pin, which has a 42,000 lb shear strength. They are available for 2", 2-1/2" and 3" hitches: - 2" Hitch: InfiniteRule Hitch Lock # 34061071-D - 2-1/2" Hitch: InfiniteRule Hitch Lock # 34061072-D - 3" Hitch: InfiniteRule Hitch Lock # 34061074-D These are not available in black, just silver.
    view full answer...
  • Recommended Locks for the BulletProof Hitches Adjustable 2-Ball Mount for 2 Hitch
    Yes, we do offer locking pins for the BulletProof Hitches Adjustable 2-Ball Mount for 2" Hitch part # MD206. These can be purchased individually with part # 34061074-D or as a set using part # 34061674-D. The set gives you the same key for all three locks. The pins will work in any of the three holes on the ball mount.
    view full answer...
  • Where is the Draw-Tite Hitch Receiver Lock BD580412 Made?
    The Draw-Tite Hitch Receiver Lock - Extra Long - Flush Design part # BD580412 is manufactured in China. For an alternative that is made in the United States I recommend using the InfiniteRule Hitch Lock for 2-1/2" Hitches - 3-1/8" Span - Stainless Steel part # 34061072-D for 2.5" hitch applications and the InfiniteRule Hitch Lock for 3" Hitches - 3-7/8" Span - Stainless Steel part # 34061074-D for 3" hitch applications. These are both made here in the United States and will offer...
    view full answer...
  • 3-Ball Mount Fit For 3 Inch Trailer Hitch Receiver
    We do have an option for a 3-ball mount that fits 3 inch trailer hitch receivers like you have on your 2021 Ford F-250 Super Duty. This is an adjustable ball mount made by B&W: - B&W Tow & Stow 3-Ball Mount - 3" Hitch - 4-1/2" Drop, 4" Rise # BWTS30048B The ball mount comes with a 1-7/8" hitch ball (3,500 lb capacity), 2" hitch ball (7,500 lb capacity), and 2-5/16" hitch ball (21,000 lb capacity). The ball mount is easy to use, highly durable due to its steel construction, and made in...
    view full answer...
  • Recommended 3" Trailer Hitch Pin Lock and 5th Wheel Trailer King Pin Lock
    I do have both pin locks you're looking for but we don't offer one keyed alike for both. Instead, I recommend using the InfiniteRule Hitch Lock for 3" Hitches part # 34061074-D for the trailer hitch and then the AMPLock King Pin Lock for 5th Wheel Trailers part # AMP77FR for the king pin. I have attached a video I did on the king pin lock below.
    view full answer...
  • Extra Long Adjustable Ball Mount Recommendation for Towing a Trailer
    The best option we have for this is the 22K BulletProof Hitches 2-Ball Mount # HD208 which offers a 9-1/4" drop or 9-1/2" rise and measures 15-3/8" from the center of the hitch pin hole to the center of the hitch ball. I also recommend securing your investment with a locking hitch pin like part # 34061074-D which is just for the shank or part # 34061674-D which is for the shank and the ball mount platform. Attached are some review videos for you to check out.
    view full answer...
  • Does the BulletProof Hitches Adjustable 2-Ball Mount Come With a Hitch Pin
    The BulletProof Hitches Adjustable 2-Ball Mount part # MD206 does not come with a hitch pin as that is how it is offered from the manufacturer. It will accept a standard hitch pin like part # PC3 but I recommend protecting your investment with locking hitch pins part # 34061674-D or just part # 34061074-D.
    view full answer...
  • Do They Make a 1-1/4" Adjustable Ball Mount?
    The Lock N Roll 3-Position Adjustable Channel Bracket for 1-1/4" Hitch Receivers # 336VS507 will allow you to use a Replacement 2" and 2-5/16" Dual-Sided Hitch Ball # C45912. This will give you an adjustable mount that will have 3 different mounting positions in either the drop or rise positions. The InfiniteRule Hitch Lock # 34061074-D will allow you to lock the hitch ball to the channel.
    view full answer...
  • Recommended Lock Pin for Solid-Tow Adjustable 2-Ball Mount
    The Solid-Tow Adjustable 2-Ball Mount part # DTSTBM6800-2S is a great option. In regards to a locking pin, there are many options to choose from. My favorite is the InfiniteRule Hitch Lock part # 34061074-D because it has an o-ring on the inside of the lock cylinder so there is very little chance for water to get in and seize the lock. The Bulldog Lifelong Trailer Hitch Lock part # BD580402 is another option but the trailer hitch cannot be more than 2-1/2" wide outside to outside. If you...
    view full answer...
  • Ball Mount for 3 Inch Trailer Hitch Receiver With the Most Drop
    We can get you close to an 11 inch drop, but there isn't a ball mount that fits a 3 inch trailer hitch receiver that has that much drop; the most drop for a ball mount in that large a receiver is 10-5/8 inches, and there are also ball mounts with 10 inches of drop. These are the options for the ball mounts with the most drop for your 3 inch receiver: - 10-5/8" Drop: Curt Adjustable 2-Ball Channel Mount - 21K # C45928 - 10" Drop: BulletProof Hitches Adjustable 2-Ball Mount for 3" Hitch...
    view full answer...
  • Will Super Titan Ball Mount RP38180 Fit 3 Inch Hitch in Ford F-250
    While we have ball mounts that will work for your 2019 Ford F-250's 3 inch trailer hitch, the Draw-Tite Super Titan Dual Ball Mount # RP38180 is for Super Titan hitches with a 3/4" pin hole diameter, which is too large for your F-250's standard hitch. So what you would need is a ball mount with a standard 5/8" pin hole such as the Draw-Tite Ball Mount for 3" Hitches # 40700 or the adjustable B&W Tow & Stow 2-Ball Mount # BWTS30037B. To secure either ball mount to your hitch you'd need...
    view full answer...
  • Is There a B&W Tow & Stow For 3 Inch Hitch With 21,000 lb Capacity
    So there is a B&W Tow & Stow that fits a 3 inch hitch and has a capacity up to 21,000 lbs, but not with a pintle hook. I checked directly with B&W to verify this for you. The 21k capacity is for the included 2-5/16" hitch ball, and if you were okay with that, you can choose from the following, depending on the maximum rise or drop you need: - Max 4-1/2" Drop, 4" Rise: B&W Tow & Stow 2-Ball Mount - 3" Hitch # BWTS30037B - Max 7-1/2" Drop, 7" Rise: B&W Tow & Stow 2-Ball Mount - 3" Hitch...
    view full answer...
  • Parts Needed to Flat Tow a 2019 Ford F-150 with 2022 Renegade Explorer on Freightliner Chassis
    We can certainly help you make sure you get all of the parts you need to flat tow your 2019 Ford F-150; a complete flat towing system consists of base plates, a compatible tow bar, safety cables, supplemental braking and possibly a high/low adapter to keep the tow bar level during towing. I linked an article below that will help you choose the correct one as well. The parts that you've listed below do consist of a complete flat towing setup for your 2019 Ford F-150 and will work well...
    view full answer...

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Info for this part was:

Employee Tyler C
Edited by:
Tyler C
Employee Jeff D
Installed by:
Jeff D
Employee David F
Installed by:
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Employee Joshua S
Video Edited:
Joshua S
Employee Dustin K
Video by:
Dustin K
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Matthew S
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