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  • CURT 25135 Posi-Lock Coupler
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CURT 25135 Posi-Lock Coupler

4.6 out of 5 stars 713 ratings

To see product details, add this item to your cart. You can always remove it later.

Purchase options and add-ons

Brand CURT
Item weight 1.81 kg
Vehicle service type Marine-Personal-Craft, Trailer
Material Alloy Steel
Finish type CLEAR ZINC

About this item

  • SECURE COUPLING. The posi-lock latch mechanism of this trailer tongue coupler accepts a safety pin or coupler lock for enhanced security
  • PRECISE FIT. This trailer coupler is designed to mount onto a 2-1/2-inch wide trailer tongue beam and couple to any standard 2-inch diameter trailer ball
  • EASILY ADJUSTABLE. Equipped with a posi-lock spring and adjustable nut on the inside, this trailer hitch coupler can easily be adjusted to ensure a snug fit on the trailer ball
  • HIGH-STRENGTH. Constructed from punched, die-cut steel, this trailer ball coupler is rated as a class 2 trailer coupler and has a capacity of 3,500 lbs. gross trailer weight and 500 lbs. tongue weight

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This item: CURT 25135 Posi-Lock Coupler
$28.50
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Top Brand: CURT

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From the manufacturer

CURT Towing Accessories

Wherever your work or play takes you

CURT offers custom trailer hitches, electrical products and a complete line of towing accessories to get you there with confidence and enjoy every mile of the journey.

CURT Trailer Hitches Camper RV Jeep Towing

Towing accessories to fit your lifestyle

Hitches, trailer wiring, cargo carriers and more!

CURT offers a complete line of towing accessories to let you fully enjoy your passion!

With everything from custom trailer hitches and trailer wiring to 5th wheel hitches and cargo carriers, we have the towing equipment you need to make the most of each adventure.

Whether you're working, playing or doing a little of both, CURT towing products enable you and your crew to make memories that will last a lifetime.

A complete line of towing products

  • Trailer hitches
  • 5th wheel hitches
  • Gooseneck hitches
  • Towing electrical
  • Towing accessories
  • Weight distribution
  • Trailer parts and accessories
  • Cargo management

Basic towing components

CURT Trailer Hitch Towing Accessories Ball Mount

Custom hitches

A trailer hitch receiver is the starting point for most people looking to tow with their vehicle. CURT offers over 1,000 different custom hitch models to provide a perfect, factory-like fit on most vehicles on the road today. Our custom hitches provide a standard hitch receiver to mount a variety of towing accessories.

CURT Custom Trailer Wiring Harness Hitch Receiver

Vehicle-trailer wiring

The next step in equipping your vehicle for towing is to add a trailer wiring harness. Like our hitches, CURT custom wiring is made vehicle-specific for each make and model. Virtually all of our custom vehicle-trailer wiring harnesses install using existing factory connectors on the vehicle for a plug-and-play connection. No splicing necessary!

CURT Ball Hitch Mount Towing Accessories

Ball mounts

With a custom trailer hitch receiver installed on your vehicle, a variety of ball mount options can be installed as needed. We offer loaded ball mounts with a trailer ball already torqued in place, as well as adjustable ball mounts, multi-ball mounts, tow hooks and more. A ball mount can be secured into the receiver using one of our hitch pins or hitch locks.

CURT Hitch Cargo Carrier Cargo Net

Cargo management

To add cargo space to your vehicle, CURT offers a number of cargo management accessories. Our cargo carriers are available in a convenient, use-as-needed hitch-mounted design, as well as a roof rack option. We also offer bike racks, cargo bags, cargo nets and ratchet straps for additional item security.

Heavy-duty towing equipment

CURT 5th Wheel Hitch Truck Bed Towing

5th wheel hitches

For heavy-duty towing of an RV or travel trailer with your pickup truck, CURT has a wide array of 5th wheel hitch options. 5th wheel hitches are available in capacities up to 25,000 lbs. and in various series, each with own unique set of features and benefits. To install a 5th wheel hitch in your pickup truck bed, CURT offers traditional 5th wheel rails and brackets, as well as puck system options and gooseneck adapters.

CURT Gooseneck Hitch OEM Puck System Truck Bed

Gooseneck hitches

For towing heavy-duty trailers around the farm or out to the construction site, CURT gooseneck hitches are a highly dependable extension of your truck. We offer puck system gooseneck hitch kits to accommodate trucks with the factory towing prep package. We also offer original-equipment-style gooseneck hitches for select applications, as well as traditional gooseneck hitches and brackets, such as our original Double Lock.

CURT Echo Mobile Electric Trailer Brake Controller Smartphone

Trailer brake controllers

CURT offers several different electrical trailer brake controller options to perfectly suit your towing setup and lifestyle. Our Echo mobile trailer brake controller is particularly unique, featuring a Bluetooth connection that links to your smartphone and provides highly responsive braking with your Apple or Android device as the interface. It easily plugs in with no tools or extra wires needed. We also offer our factory-like Spectrum and traditional TriFlex.

Specialized towing accessories

CURT Trailer Hitch Adjustable Channel Mount

Adjustable channel mounts

To give your vehicle greater capability for towing a variety of trailers, CURT adjustable trailer hitch ball mounts provide the answer. This versatile ball hitch comes in standard hitch receiver sizes and provides flexible vertical adjustment to ensure level towing, even with large, lifted trucks and SUVs.

CURT Weight Distribution Hitch Trailer Sway Control

Weight distribution hitches

Give yourself more control over your vehicle and trailer with a CURT weight distribution hitch. This receiver hitch attachment helps level the vehicle-trailer combination for a smoother ride. Our TruTrack weight distribution hitch is particularly unique, featuring integrated trailer sway control.

CURT Pintle Hitch Mount Lunette Ring

Pintle hitches

These heavy-duty hitches are perfect for agriculture, construction and military towing. We offer pintle hitches, pintle hooks, ball and pintle hitch combinations, as well as channel-mount pintle hitches for an adjustable option. We also carry high-strength lunette rings for a solid connection to the trailer.

CURT Cargo Ratchet Straps Trailer Truck Towing

Ratchet straps

Keep your cargo fully secure in your truck bed or trailer with a set of CURT ratchet straps. These cargo tie-down straps come with heavy-duty ratcheting mechanisms and are available in wide variety of capacities, lengths, hook types and colors.

Product description

CURT 25135 Posi-Lock Coupler

Product information

Technical Details

Manufacturer ‎CURT
Place of Business ‎DFW AIRPORT, TX, 75261 US
Brand ‎CURT
Model ‎Straight Coupler
Product Dimensions ‎27.31 x 11.68 x 10.16 cm; 1.81 kg
Item model number ‎25135
Is discontinued by manufacturer ‎Yes
Exterior ‎CLEAR ZINC
Manufacturer part number ‎25135
OEM part number ‎25135
Item Weight ‎1.81 kg

Additional Information

ASIN B0007LZGXS
Customer Reviews
4.6 out of 5 stars 713 ratings

4.6 out of 5 stars
鶹 Rank
Date First Available Aug. 13 2012

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CURT 25135 Posi-Lock Coupler


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Customer reviews

4.6 out of 5 stars
713 global ratings

Review this product

Share your thoughts with other customers

Customers say

Customers like the build quality and fit of the tow hitch. They mention it's heavy-duty and well-built.

Select to learn more

3 customers mention "Build quality"3 positive0 negative

Customers are satisfied with the build quality of the tow hitch. They mention it's heavy-duty and well-built.

"Fitted perfectly. I was was constructed with no flaws" Read more

"Good heavy steel..." Read more

"Heavy duty, well built..." Read more

3 customers mention "Fit"3 positive0 negative

Customers are satisfied with the fit of the tow hitch. They mention it's perfect for converting lawn tractor trailers from pin to ball.

"Perfect fit, used to convert lawn tractor trailer from pin to ball." Read more

"Fitted perfectly. I was was constructed with no flaws" Read more

"...I also found that it was pre-adjusted fit a 2" ball tightly. I'm not sure if this was a coincidence but it was a plus...." Read more

Top reviews from Canada

  • Reviewed in Canada on May 19, 2023
    Verified Purchase
    Perfect fit, used to convert lawn tractor trailer from pin to ball.
  • Reviewed in Canada on December 10, 2017
    Verified Purchase
    Fitted perfectly. I was was constructed with no flaws
  • Reviewed in Canada on August 25, 2023
    Verified Purchase
    Works great on my lawn sweeper .
  • Reviewed in Canada on April 2, 2019
    Verified Purchase
    It was a perfect replacement for my trailer. I also found that it was pre-adjusted fit a 2" ball tightly. I'm not sure if this was a coincidence but it was a plus. I sometimes struggled to get the old coupler on and off of the ball even when it was new. This one works much better.
    One person found this helpful
    Report
  • Reviewed in Canada on August 22, 2019
    Verified Purchase
    Just as advertised.
  • Reviewed in Canada on April 16, 2021
    Verified Purchase
    Would buy again
  • Reviewed in Canada on December 16, 2017
    Verified Purchase
    thank you exactly as described perfect for my trailer
  • Reviewed in Canada on May 26, 2017
    Verified Purchase
    just what I was looking for at a good price.

Top reviews from other countries

  • HP
    5.0 out of 5 stars Works as it should.
    Reviewed in the United States on April 2, 2024
    Verified Purchase
    No, you can use this on a 30,000 lb trailer; however, if you follow the manufacturer's rating, it works very well and is a good value for the price.
  • 鶹 Customer
    5.0 out of 5 stars Works great.
    Reviewed in the United States on February 10, 2024
    Verified Purchase
    Works as it should and made with quality materials.
  • Teresa
    5.0 out of 5 stars best bang for you buck !!!!
    Reviewed in the United States on July 26, 2025
    Verified Purchase
    I'm very happy with my purchase . lately my purchases from amazon have had to be returned because cheaply made item of false calms but this is one buy i'm happy with it fits perfectly on my trailer. easy installation . it looks great you want be disappointed
  • Nathan McCann
    4.0 out of 5 stars Hard to find a 2.5
    Reviewed in the United States on August 11, 2025
    Verified Purchase
    I like that it's a 2.5", seems like that's hard to find. It doesn't like to drop on the ball if it's towards the back of the socket, haven't experienced that before but it's not a huge thing to deal with.
  • Michael
    5.0 out of 5 stars Solid build quality
    Reviewed in the United States on October 26, 2023
    Verified Purchase
    This is a strong and durable piece. Very pleased with purchase. The locking mechanism works smoothly. Recommended if you need a 2” coupler.

Product Summary: CURT 25135 Posi-Lock Coupler

From CURT

4.6 out of 5 stars, 713 ratings

Customer reviews

50+ viewed in past month

Price

No featured offers available

Other sellers

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About this Item

  • SECURE COUPLING. The posi-lock latch mechanism of this trailer tongue coupler accepts a safety pin or coupler lock for enhanced security
  • PRECISE FIT. This trailer coupler is designed to mount onto a 2-1/2-inch wide trailer tongue beam and couple to any standard 2-inch diameter trailer ball
  • EASILY ADJUSTABLE. Equipped with a posi-lock spring and adjustable nut on the inside, this trailer hitch coupler can easily be adjusted to ensure a snug fit on the trailer ball
  • HIGH-STRENGTH. Constructed from punched, die-cut steel, this trailer ball coupler is rated as a class 2 trailer coupler and has a capacity of 3,500 lbs. gross trailer weight and 500 lbs. tongue weight

Product description

CURT 25135 Posi-Lock Coupler

Feedback

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