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- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon e-gift card for the purchase price of your covered product or replace it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
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Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary) -
24/7 support when you need it -
Quick, easy, and frustration-free claims
Product Protection by Asurion, LLC
- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon e-gift card for the purchase price of your covered product or replace it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
Product Protection by Asurion, LLC
- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon e-gift card for the purchase price of your covered product or replace it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
Product Protection by Asurion, LLC
- BEST VALUE: Protect all your eligible Amazon purchases including: tech, tools, appliances, furniture and more. All for one low monthly price.
- PAST AND FUTURE PROTECTION: Covers malfunctions and failures, plus drops or spills for eligible portable items. Protection begins immediately for eligible purchases from the past 90 days, plus all eligible future purchases (products used commercially are excluded).
- TRUSTED CYBERSECURITY: Digital security with scam detection for emails and texts.
- EASY CLAIMS: File in minutes at www.asurion.com/amazon for fast repair or reimbursement - up to the purchase price.
- NO HIDDEN FEES. CANCEL ANYTIME: Up to $5,000 in total claims per 12-month period. Your plan renews monthly until canceled (coupons applied at checkout don’t renew monthly).
Product Protection by Asurion, LLC
- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon e-gift card for the purchase price of your covered product or replace it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
Demco 2-5/16" Adjustable Coupler Lock (LCS002 Demco) – Custom Fit for Dump and Equipment Trailers with C-Channel Mounts. (Includes Trimax Puck Lock)
Purchase options and add-ons
Customers usually keep this item.
| Brand | S5 Coupler Locks |
| Special Feature | Cut Resistant |
| Lock Type | Key Lock |
| Item dimensions L x W x H | 8 x 10 x 7 inches |
| Material | Alloy Steel |
About this item
- SECURE YOUR TRAILER: Specifically designed for DEMCO 2-5/16 inch adjustable couplers with C-channel mounts, providing a tight, custom fit for ultimate trailer security.
- CUSTOM FIT DESIGN: Specifically engineered for Demco 2-5/16” Adjustable Couplers on dump and equipment trailers with C-channel mounts.
- MAXIMUM SECURITY: Provides robust theft prevention with a durable locking mechanism and high-strength materials.
- HEAVY-DUTY CONSTRUCTION: Built to withstand harsh environments and daily wear and tear.
- MADE IN THE USA: Proudly manufactured in the United States, ensuring top-quality craftsmanship and materials.
- TRUSTED BRAND: Backed by S5 Coupler Locks’ reputation for reliable trailer security solutions.
Frequently bought together

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From the brand
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S5 Coupler Locks is dedicated to delivering high-quality security solutions for trailers. Our mission is to provide robust, tamper-resistant locks that give our customers peace of mind, knowing their assets are secure.
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Coupler Locks
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LOCK IT AND LEAVE IT.
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How did we get our start?
We started with the goal of addressing a common problem faced by trailer owners - securing their valuable equipment from theft and tampering.
What makes our products unique?
We focus on delivering superior strength and reliability through the construction of our locks. Each lock is crafted from heavy-duty 1/4" and 3/16" structural steel, ensuring resistance to cutting, corrosion, and harsh weather conditions.
What problem are we solving?
We are solving trailer theft by offering reliable, tamper-resistant locks that keep your trailer secure and provide peace of mind.
Product description
LCS001
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LCS002 RAM
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LCS002 Demco
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LCS006 Combo
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LCS005D
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LCSPIN3
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Add to Cart
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Add to Cart
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Add to Cart
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Add to Cart
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Add to Cart
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| Customer Reviews |
5.0 out of 5 stars 3
|
4.4 out of 5 stars 12
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4.8 out of 5 stars 30
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— |
5.0 out of 5 stars 2
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1.0 out of 5 stars 1
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| Price | $185.00$185.00 | $239.00$239.00 | $239.00$239.00 | $285.00$285.00 | $185.00$185.00 | — no data |
| Material | Steel | Steel | Steel | Steel | Steel | Steel |
| Compatible Sizes | 2" & 2-5/16" | 2-5/16" | 2-5/16" | 2-5/16" | 2-5/16" | 3" Pintle/Lunette Ring |
| Finish | Powder Coated | Powder Coated | Powder Coated | Powder Coated | Powder Coated | Powder Coated |
| Made in USA | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Product information
| Brand Name | S5 Coupler Locks |
|---|---|
| Recommended Uses For Product | Trailers |
| Number of Pieces | 1 |
| Included Components | 3 Keys |
| Model Number | LCS002 DEMCO |
| UPC | 198715240085 |
| Model Name | LCS002 DEMCO |
| Manufacturer | S5 Coupler Locks |
| Unit Count | 1.0 Count |
| Manufacturer Part Number | LCS002 DEMCO |
| Best Sellers Rank |
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| ASIN | B0DMFRBNC5 |
| Customer Reviews |
4.8 out of 5 stars |
Warranty & Support
Feedback
| Additional Features | Cut Resistant |
|---|---|
| Lock Type | Key Lock |
| Control Method | Push Button |
| Style Name | DEMCO 2-5/16" |
|---|---|
| Color | Black |
| Material Type | Alloy Steel |
|---|---|
| Finish Types | Powder Coated |
| Item Dimensions | 8 x 10 x 7 inches |
|---|---|
| Item Weight | 20 Pounds |
Customer reviews
- 5 star4 star3 star2 star1 star4 star96%0%0%0%4%0%
- 5 star4 star3 star2 star1 star3 star96%0%0%0%4%0%
- 5 star4 star3 star2 star1 star2 star96%0%0%0%4%0%
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Generated from the text of customer reviewsSelect to learn more
Reviews with images
Best Value to security
Top reviews from the United States
- 5 out of 5 stars
Best Value to security
Reviewed in the United States on December 18, 2025This is a high quality trailer lock. The initial cost seems expensive but when you consider the value you get it is a no brainer. I like the fact it covers the hitch bolts, other brands would require you to buy an additional lock.
Will definitely buy again when I aquire more trailers.

This is a high quality trailer lock. The initial cost seems expensive but when you consider the value you get it is a no brainer. I like the fact it covers the hitch bolts, other brands would require you to buy an additional lock.
Will definitely buy again when I aquire more trailers.
2 people found this helpfulSending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again - 5 out of 5 stars
Buy it.
Reviewed in the United States on December 13, 2025I definitely recommend this product. Good quality and craftsmanship and keeps my trailer safe.
Sending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again - 5 out of 5 stars
Great coupler locks... Couldn't be happier.
Reviewed in the United States on April 9, 2026I recently picked up a new side-by-side trailer that came with a bolt-on bulldog-style coupler. While I use Proven and Gus Hill locks on my other two trailers, those couplers are welded on, so there are no bolts to worry about.
To secure this new setup, I swapped the factory coupler for a Demco EZ-Latch with the S5 Coupler Lock. I went this route specifically because the lock design prevents anyone from removing the bolts and the hitch. It’s a much more cost-effective solution than the Proven lock, which requires a separate $150 add-on just to secure the coupler hardware. This setup handles both jobs for a lot less.
Sending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again - 5 out of 5 stars
This thing is solid and seems bulletproof!
Reviewed in the United States on June 2, 2026The description provided by the seller is accurate. Be sure you’re getting the correct one for the coupler you have or that 20% restocking fee is going to hurt. This works great for the C channel coupler that bolts on. Specifically, the Demco 2 5/16 coupler that bolts on to equipment trailers. Unlike some of the other knock-off brands (I know cuz I bought one for another trailer), this thing is well built and of solid construction. There are no pieces that screw together like the knock-offs which means thieves would have to cut this thing off with a torch since a pry bar won’t do anything. Weak points? I don’t think so! I’m happy with this purchase!
Sending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again - 5 out of 5 stars
A lock that actually works
Reviewed in the United States on June 3, 2026This thing is well built and solid. It would take a lot of time and effort to steal a trailer with this lock.
Sending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again - 5 out of 5 stars
Works as Designed
Reviewed in the United States on September 8, 2025Works great. A little cumbersome to put on every time but its heavy duty and seems to deter would be thieves.
Sending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again - 5 out of 5 stars
Demco trailer lock you should consider.
Reviewed in the United States on February 16, 2026Heavy duty lock. Very well built.
Sending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again - 5 out of 5 stars
This is the best, Perfect design.
Reviewed in the United States on April 24, 2025Just get this !!! It's worth it. The other guy at "proving industry's " makes you purchase 2 products to secure your trailer.
This is one product that does it all for cheaper.




Just get this !!! It's worth it. The other guy at "proving industry's " makes you purchase 2 products to secure your trailer.
This is one product that does it all for cheaper.
2 people found this helpfulSending feedback...Sending feedback...HelpfulThank you for your feedback.Sorry, we failed to record your vote. Please try againThanks, we'll investigate in the next few days.Sorry, We failed to report this review. Please try again
Product summary presents key product information
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Product Summary: S5 Coupler Locks Demco 2-5/16" Adjustable Coupler Lock (LCS002 Demco) – Custom Fit for Dump and Equipment Trailers with C-Channel Mounts. (Includes Trimax Puck Lock)
From S5 Coupler Locks
About this Item
- SECURE YOUR TRAILER: Specifically designed for DEMCO 2-5/16 inch adjustable couplers with C-channel mounts, providing a tight, custom fit for ultimate trailer security.
- CUSTOM FIT DESIGN: Specifically engineered for Demco 2-5/16” Adjustable Couplers on dump and equipment trailers with C-channel mounts.
- MAXIMUM SECURITY: Provides robust theft prevention with a durable locking mechanism and high-strength materials.
- HEAVY-DUTY CONSTRUCTION: Built to withstand harsh environments and daily wear and tear.
- MADE IN THE USA: Proudly manufactured in the United States, ensuring top-quality craftsmanship and materials.
- TRUSTED BRAND: Backed by S5 Coupler Locks’ reputation for reliable trailer security solutions.
Product Description
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