Skip to main content
HalloweenPetLawn & GardenTruck & AutomotiveSporting GoodsHorseFarm & RanchClothingLivestockPet & Animal PharmacyToolsPoultryFencing & GatesHome ImprovementOutdoor LivingHeating & CoolingHome Decor & FurnitureOutdoor Power EquipmentTrailers & TowingBoots & ShoesWild Birds & WildlifeToysGift CardsServices Propane RefillTrailer RentalGarden CenterFeed CenterSame Day DeliveryPetVet ClinicPet WashGrooming at PetsenseDog Training at PetsenseTractor Supply RxPet InsuranceWag!

"Savings and Offers"

Weekly AdSaleClearance

"More Options"

Weekly AdWhat's NewTractor Supply AppEarn Rewards with Neighbor's ClubHometown HeroesLife Out Here BlogTSC Exclusive BrandsTop BrandsClearance ItemsBattery FinderOutdoor Power Equipment Parts FinderHitch Finder

Spend $49.99 to unlock Free Delivery on most orders

|
Learn More
Order statusTSC Credit CardsWhat’s newPetsenseWeekly Ad
​

Sign In / Enroll

Get rewarded!

​
Menu

Search

Home

Sign In

Cart
0.0
(0)
0.0 out of 5 stars.
A woman outside with a dog
A woman outside with a dog
  1. Home
  2. /
  3. Home Improvement
  4. /
  5. Hardware
  6. /
  7. Locks
  8. /
  9. Trailer Locks
  10. /

  11. TRIMAX UMAX50D Deluxe Universal Dual Purpose Trailer Coupler Lock with Integrated U-Lock

  1. Home
  2. /
  4. /
  5. Trailer Locks

TRIMAX UMAX50D Deluxe Universal Dual Purpose Trailer Coupler Lock with Integrated U-Lock

Shop all TRIMAX
TRIMAX UMAX50D Deluxe Universal Dual Purpose Trailer Coupler Lock with Integrated U-Lock

Item # 2552376

Stocked & Ready
TRIMAX TRIMAX UMAX50D Deluxe Universal Dual Purpose Trailer Coupler Lock with Integrated U-Lock
TRIMAX TRIMAX UMAX50D Deluxe Universal Dual Purpose Trailer Coupler Lock with Integrated U-Lock
$54.99

Add this item to unlock free delivery!

Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

Shop all TRIMAX
TRIMAX UMAX50D Deluxe Universal Dual Purpose Trailer Coupler Lock with Integrated U-Lock

Item # 2552376

Stocked & Ready
TRIMAX TRIMAX UMAX50D Deluxe Universal Dual Purpose Trailer Coupler Lock with Integrated U-Lock
TRIMAX TRIMAX UMAX50D Deluxe Universal Dual Purpose Trailer Coupler Lock with Integrated U-Lock

$54.99
financeCard Logo
New Cardmembers earn a $20 Reward‡ with qualifying purchase of $20 or more plus earn 5% in Rewards+ on this purchase. Valid through 8/9/26.

Add this item to unlock free delivery!

Shopping at

Grassland (franklin) TN

Delivery to

Free standard delivery on online footwear & Clothing purchases of $49 and over.

​
Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

Trimax - UMAX50D - Trailer Lock for Hitch, Dual Purpose Transforms to U Lock - Trailer Hitch Lock for 1-7/8" - 2-5/16" Couplers, All Coupler Types. An integrated keyhole cover keeps dirt, debris, and corrosion at bay, ensuring smooth operation in all conditions. Backed by a limited lifetime warranty.

  • DUAL RATCHET SECURITY Advanced dual ratchet locking system ensures a strong, tamper-resistant fit for maximum trailer protection.
  • MULTI-USE DESIGN Functions as both a coupler lock and a U-lock, providing versatility and convenience for securing your trailer or other equipment.
  • 360 PROTECTION Designed with full 360-degree coverage to guard against prying, hammering, and tampering, keeping your trailer safe.
  • WEATHER-RESISTANT KEYHOLE Integrated keyhole cover keeps dirt, debris, and corrosion at bay, ensuring smooth operation in all conditions.
  • UNIVERSAL FIT & WARRANTY Compatible with most coupler sizes and backed by a limited lifetime warranty for long-term security and peace of mind.
BrandTRIMAX
Country of OriginImported
FeaturesUniversal, Steel, Coupler lock, U lock
Locking MechanismKey lock
Number of Keys Included2
Package Quantity1
Pin/Shackle Diameter9 16th in.
Primary MaterialSteel
Product Height4 in.
Product Length9.75 in.
Product Weight3.91 lb.
Product Width9.25 in.
Lock TypeTrailer Coupler Lock
WarrantyLifetime
Manufacturer Part NumberUMAX50D
No questions have been asked about this product.

No questions have been asked about this product.

Q&As

No questions have been asked about this product.

No questions have been asked about this product.

Similar Items

  1. TRIMAX UMAX100 Premium Universal Dual Purpose Coupler Lock , Black
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    TRIMAX UMAX100 Premium Universal Dual Purpose Coupler Lock , Black

    $64.99
  2. TRIMAX TLR51 Lunette Tow Ring Lock, Yellow
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    TRIMAX TLR51 Lunette Tow Ring Lock, Yellow

    $69.99
  3. TRIMAX TCP50 Trailer Lock Combo Pack (Keyed Alike), Black
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    TRIMAX TCP50 Trailer Lock Combo Pack (Keyed Alike), Black

    $84.99
  4. Master Lock Universal Trailer Coupler Lock
    4.4 out of 5 stars with 80 reviews
    4.4 (80)

    Master Lock Universal Trailer Coupler Lock

    $39.99
  5. Top Rated
    TRIMAX TMC10 Coupler/Door Latch Lock (fits couplers to 3/4 in. span) , Zinc
    5.0 out of 5 stars with 2 reviews
    5.0 (2)

    TRIMAX TMC10 Coupler/Door Latch Lock (fits couplers to 3/4 in. span) , Zinc

    $19.99
  6. Top Rated
    TRIMAX THC200 Univeral Anti-Rattle Clamp Fits 2 in. Hitch, Silver
    5.0 out of 5 stars with 1 reviews
    5.0 (1)

    TRIMAX THC200 Univeral Anti-Rattle Clamp Fits 2 in. Hitch, Silver

    $34.99
  7. RoadPro 2.75 in. Brass Truck/Trailer Lock
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RoadPro 2.75 in. Brass Truck/Trailer Lock

    $29.99
  8. TRIMAX SXT5 Premium 100% Stainless Steel 5/8 in. Class V Extended Receiver Lock (3-1/2 in. Span)
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    TRIMAX SXT5 Premium 100% Stainless Steel 5/8 in. Class V Extended Receiver Lock (3-1/2 in. Span)

    $37.99
  9. Uriah Products Keyless Combination Trailer Coupler Lock 2-5/16 in. with Cover
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Uriah Products Keyless Combination Trailer Coupler Lock 2-5/16 in. with Cover

    $116.99
    Was $129.99Save $13.00
  10. TRIMAX T5 Premium Chromed Forged Steel 5/8 in. Class V Extended Receiver Lock (3 1/2 in. Span), Silver
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    TRIMAX T5 Premium Chromed Forged Steel 5/8 in. Class V Extended Receiver Lock (3 1/2 in. Span), Silver

    $24.99
  11. Top Rated
    Master Lock 5/8 in. (16mm) Class III/IV Barbell Trailer Coupler Lock, Keyed Alike
    5.0 out of 5 stars with 1 reviews
    5.0 (1)

    Master Lock 5/8 in. (16mm) Class III/IV Barbell Trailer Coupler Lock, Keyed Alike

    $47.99
  12. Uriah Products Trailer Coupler Lock Fit 1-7/8 in., 2 in. & 2-5/16 in. Couplers with Cover
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Uriah Products Trailer Coupler Lock Fit 1-7/8 in., 2 in. & 2-5/16 in. Couplers with Cover

    $80.99
    Was $89.99Save $9.00

Items You May Like

  1. Top Rated
    BulletProof Hitches BulletProof Trailer Latch Lock
    5.0 out of 5 stars with 1 reviews
    5.0 (1)

    BulletProof Hitches BulletProof Trailer Latch Lock

    $19.99
  2. Top Rated
    Master Lock 1/2 in. (13mm) and 5/8 in. (16mm) Stainless Steel Receiver Locks with Adjustable Coupler Latch Lock
    5.0 out of 5 stars with 3 reviews
    5.0 (3)

    Master Lock 1/2 in. (13mm) and 5/8 in. (16mm) Stainless Steel Receiver Locks with Adjustable Coupler Latch Lock

    $47.99
  3. Squire 4 Wheel Combination Padlock - Closed Shackle
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Squire 4 Wheel Combination Padlock - Closed Shackle

    $19.79
    Was $21.99Save $2.20
  4. Top Rated
    Master Lock 2-3/8 in. to 5-15/16 in. Shackle Covered Solid Body Padlock
    5.0 out of 5 stars with 2 reviews
    5.0 (2)

    Master Lock 2-3/8 in. to 5-15/16 in. Shackle Covered Solid Body Padlock

    $28.99
  5. Hillman 5/16 in. x 1-1/4 in. x 1/16 in. Neoprene Fender Washers, 2-Pack
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Hillman 5/16 in. x 1-1/4 in. x 1/16 in. Neoprene Fender Washers, 2-Pack

    $1.79
  6. Top Rated
    Master Lock 5/8 in. Shackle Stainless Shrouded Padlocks, 3-Pack
    4.8 out of 5 stars with 5 reviews
    4.8 (5)

    Master Lock 5/8 in. Shackle Stainless Shrouded Padlocks, 3-Pack

    $48.99
  7. Bulldog Steel TSA Combination Lock, Black
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Bulldog Steel TSA Combination Lock, Black

    $19.99
  8. Allen 15 in. Cable Gun Lock, Black
    4.5 out of 5 stars with 4 reviews
    4.5 (4)

    Allen 15 in. Cable Gun Lock, Black

    $12.99
  9. Prime-Line Security Screen or Storm Door Mortise Lock, Heavy Duty, Non-Handed, 1 Set, K 5064
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Prime-Line Security Screen or Storm Door Mortise Lock, Heavy Duty, Non-Handed, 1 Set, K 5064

    $29.99
  10. SnapSafe 2 ft. Cable Padlocks, 2-Pack
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    SnapSafe 2 ft. Cable Padlocks, 2-Pack

    $9.99
  11. Hornady Lock-N-Load Neck Turn Tool
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Hornady Lock-N-Load Neck Turn Tool

    $168.99
  12. Bulldog 2.25 in. Metal TSA Combination Cable Lock
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Bulldog 2.25 in. Metal TSA Combination Cable Lock

    $19.99

Customers Also Bought

  1. Top Rated
    Master Lock 1/2 in. (13mm) and 5/8 in. (16mm) Receiver Pin and Clip
    5.0 out of 5 stars with 2 reviews
    5.0 (2)

    Master Lock 1/2 in. (13mm) and 5/8 in. (16mm) Receiver Pin and Clip

    $14.99
  2. Top Rated
    Reese 5/8 in. Trailer Hitch Lock, Fits 2-1/2 in. Receiver, Bent Pin
    4.9 out of 5 stars with 14 reviews
    4.9 (14)

    Reese 5/8 in. Trailer Hitch Lock, Fits 2-1/2 in. Receiver, Bent Pin

    $19.99
  3. Master Lock 6 ft. Keyed Cable Locks, 3-Pack
    4.0 out of 5 stars with 8 reviews
    4.0 (8)

    Master Lock 6 ft. Keyed Cable Locks, 3-Pack

    $33.99
  4. Master Lock 6 ft. Keyed Cable Lock
    4.5 out of 5 stars with 2 reviews
    4.5 (2)

    Master Lock 6 ft. Keyed Cable Lock

    $27.99
  5. Master Lock 15 ft. Looped End Cable
    3.9 out of 5 stars with 7 reviews
    3.9 (7)

    Master Lock 15 ft. Looped End Cable

    $32.99
  6. Top Rated
    Master Lock 6 ft. Looped End Cable
    5.0 out of 5 stars with 2 reviews
    5.0 (2)

    Master Lock 6 ft. Looped End Cable

    $23.99
  7. Master Lock 6 ft. General Use Looped End Cable
    4.6 out of 5 stars with 8 reviews
    4.6 (8)

    Master Lock 6 ft. General Use Looped End Cable

    $17.49
  8. Master Lock Camo Python Cable 8 mm 6 ft.
    4.7 out of 5 stars with 3 reviews
    4.7 (3)

    Master Lock Camo Python Cable 8 mm 6 ft.

    $32.99
  9. Top Rated
    Saris 8 ft. Cable Bike Lock, Braided Bike Lock Cable with 2 Keys
    4.9 out of 5 stars with 15 reviews
    4.9 (15)

    Saris 8 ft. Cable Bike Lock, Braided Bike Lock Cable with 2 Keys

    $44.99
  10. Master Lock 1.5 in. Shackle Wide Set-Your-Own-Combination Portable Lock Box
    4.2 out of 5 stars with 32 reviews
    4.2 (32)

    Master Lock 1.5 in. Shackle Wide Set-Your-Own-Combination Portable Lock Box

    $42.99
  11. Hornady Rapid Safe Shotgun Wall Lock
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Hornady Rapid Safe Shotgun Wall Lock

    $292.99
  12. Master Lock 7/8 in. Shackle Solid Body Padlock
    4.5 out of 5 stars with 27 reviews
    4.5 (27)

    Master Lock 7/8 in. Shackle Solid Body Padlock

    $19.99

Reviews

Review this Product

Select to rate the item with 1 star. This action will open submission form.
Select to rate the item with 2 stars. This action will open submission form.
Select to rate the item with 3 stars. This action will open submission form.
Select to rate the item with 4 stars. This action will open submission form.
Select to rate the item with 5 stars. This action will open submission form.
Be the first to review this product
Get the top deals, latest trends and more
Sign up for emails from Tractor Supply today.
First Name*
Last Name*
Email*

Customer Support

  • Order Status

  • Return Policy

  • Delivery Options

  • Tax Exemptions

  • Frequently Asked Questions

  • Contact Us

  • Recall Notices

  • Call:  

    (877) 718-6750

  • Mon - Sat: 7am - 9pm CT

  • Sun: 8am - 7pm CT

  • Closed Christmas Day

About Us

  • Who We Are

  • Investor Relations

  • Stewardship

  • Community

  • Military Support

  • Product Catalog

  • Tractor Supply Stores

  • .Pharmacy Verified Website

Work With Us

  • Careers

  • Sponsorship

  • Affiliate Program

  • Potential Vendor Partners

  • Vendor Information

  • Tractor Supply Media Network

Neighbor's Club

  • About

  • Rewards

  • Hometown Heroes

  • Frequently Asked Questions

  • Terms & Conditions

Credit Center

  • TSC Credit Card

  • Klarna

Stay Connected

Connect & Share with the Tractor Supply Community.

Tractor Supply App

Shop on the go with the Tractor Supply App

Learn More

Stay Connected

Connect & Share with the Tractor Supply Community.

Tractor Supply App

Shop on the go with the Tractor Supply App

Learn More
  • Order Status

  • Return Policy

  • Delivery Options

  • Tax Exemptions

  • Frequently Asked Questions

  • Contact Us

  • Recall Notices

  • Call:  (877) 718-6750

  • Mon - Sat: 7am - 9pm CT

  • Sun: 8am - 7pm CT

  • Closed Christmas Day

  • Who We Are

  • Investor Relations

  • Stewardship

  • Community

  • Military Support

  • Product Catalog

  • Tractor Supply Stores

  • .Pharmacy Verified Website

  • Careers

  • Sponsorship

  • Affiliate Program

  • Potential Vendor Partners

  • Vendor Information

  • Tractor Supply Media Network

  • About

  • Rewards

  • Hometown Heroes

  • Frequently Asked Questions

  • Terms & Conditions

  • TSC Credit Card

  • Klarna

Connect & Share with the Tractor Supply Community.

Shop on the go with the Tractor Supply App

Learn More
  • Privacy policy
  • Your Privacy Choices
  • Terms and Conditions
  • California Transparency Act
  • Legal Notices
  • Accessibility
  • Responsible Disclosure Statement
  • Surprise (Balance) Medical Billing Disclosure
  • Transparency in Coverage
  • Human Rights Policy
  • Vendor Code of Conduct
  • California Notice of Collection
  • Privacy Requests

© 2026, Tractor Supply Co. All Rights Reserved.