InfiniteRule 61106-S Trailer Coupler Latch Lock – 1-1/8″ Span
Compact stainless steel trailer coupler latch lock for compatible hook, thumb, trigger, and yoke-style trailer coupler latches, using a 1/4″ pin with a 1-1/8″ span.
Why Use the InfiniteRule 61106-S Trailer Coupler Latch Lock?
The InfiniteRule 61106-S is a compact trailer coupler latch lock designed to help secure compatible trailer coupler latch mechanisms. It is intended for hook, thumb, trigger, and yoke-style trailer coupler latches where the latch width and lock depth match the lock’s dimensions.This lock helps prevent the trailer coupler latch from being opened when secured, adding theft deterrence while the trailer is parked or stored. Its stainless steel construction, compact size, dust cover, and keyed locking design make it a useful security accessory for many RV, utility, cargo, boat, and equipment trailers with compatible latch geometry.
? Coupler Latch Security
Helps prevent compatible trailer coupler latches from opening
? 1-1/8″ Span
Designed for latch applications requiring a 1-1/8″ lock span
? 1/4″ Pin Diameter
Compact pin size for compatible coupler latch lock points
? Stainless Steel
Corrosion-resistant construction for trailer and outdoor exposure
⚠️ Important Fitment Note
InfiniteRule 61106-S is designed for compatible trailer coupler latches, including hook, thumb, trigger, and yoke-style latch designs. It is not a universal lock for all trailer doors, compartment doors, padlock hasps, receiver hitches, or every coupler latch style.
Verify the coupler latch style, latch width, lock hole diameter, required span, latch depth, and clearance around the latch before ordering. InfiniteRule references this lock as a 1-1/8″ trailer coupler latch lock; distributor listings commonly describe it as 1/4″ diameter x 1-1/8″ span x approximately 3/4″ depth.
Key Features & Benefits
- Trailer Coupler Latch Lock: Helps secure compatible trailer coupler latch mechanisms against unwanted opening
- Fits Multiple Latch Styles: Designed for compatible hook, thumb, trigger, and yoke trailer coupler latch styles
- 1-1/8″ Span: Matches compatible coupler latch applications requiring a compact 1-1/8″ span
- 1/4″ Pin Diameter: Small-diameter lock pin designed for compatible latch lock holes
- Approx. 3/4″ Depth Reference: Distributor listings commonly reference a 3/4″ depth; InfiniteRule guide/catalog references 11/16″ depth, so verify latch depth before ordering
- Stainless Steel Construction: Helps resist rust and corrosion from towing, weather, storage, and outdoor exposure
- Compact Lock Design: Lower-profile design is easier to store and helps fit many tight latch areas
- Dust Cover Included: Helps protect the lock cylinder from dirt, water, and road grime
- Two Keys Included: Includes keys as supplied by manufacturer or distributor packaging
- Made in the USA: InfiniteRule trailer locks are manufactured in the United States
Product Specifications
| Part Number | 61106-S |
|---|---|
| Manufacturer Base SKU Reference | 61106 |
| UPC | 633643611069 |
| Brand | InfiniteRule |
| Product Type | Trailer Coupler Latch Lock |
| Application | Compatible Trailer Coupler Latch Security |
| Compatible Latch Styles | Hook, Thumb, Trigger, and Yoke Trailer Coupler Latches |
| Pin Diameter | 1/4″ |
| Pin Span | 1-1/8″ |
| Depth Reference | Approx. 3/4″ Distributor Reference / 11/16″ InfiniteRule Guide Reference |
| Material | Stainless Steel |
| Color / Finish | Silver |
| Keys Included | Yes — Typically 2 Keys |
| Dust Cover Included | Yes |
| Country of Origin | Made in USA |
| Universal Fit | No — Verify Coupler Latch Style, Pin Diameter, Span, Depth, and Clearance Before Ordering |
? Installation / Use Overview
Before Starting: Confirm the trailer coupler latch is compatible with a 1/4″ pin, 1-1/8″ span, and the required latch depth. Inspect the coupler latch for damage, deformation, rust, or misalignment before installing the lock.
Basic Use Steps:
1. Close the Coupler Latch: Make sure the trailer coupler latch is fully closed and seated according to the coupler manufacturer’s instructions.
2. Align Lock Point: Locate the latch hole or lock point where the trailer latch lock will pass through.
3. Insert Lock Pin: Slide the 1/4″ lock pin through the compatible latch opening.
4. Attach Lock End: Install the locking end and secure it with the included key according to InfiniteRule instructions.
5. Check Fit: Gently pull on the latch and lock to confirm the latch cannot open and the lock is seated properly.
6. Install Dust Cover: Seat the dust cover to help protect the keyway from dirt, water, and grime.
7. Store Keys Safely: Keep spare keys in a safe location and record the key number if provided.
8. Inspect Regularly: Check the lock, latch, keyway, and coupler before travel or storage.
? What’s Included
Package Contents:
• 1 InfiniteRule 61106-S trailer coupler latch lock
• 1/4″ stainless steel lock pin with 1-1/8″ span
• Locking end / lock cylinder assembly
• Dust cover
• Keys as supplied by manufacturer or distributor packaging
NOT Included — May Also Need:
• Trailer coupler
• Receiver hitch lock
• Coupler surround lock
• Trailer door or compartment lock
• Padlock or hasp lock
• Safety chains, towing hardware, or hitch components
• Replacement coupler latch parts
This listing is for the trailer coupler latch lock only unless otherwise stated. Confirm your latch style, pin hole size, span, depth, and clearance before ordering.
? Fitment & Support Notes
To confirm compatibility before ordering, have the following ready:
• Trailer coupler brand and model, if available
• Latch style: hook, thumb, trigger, yoke, or another design
• Latch lock hole diameter
• Required usable span across the latch
• Required latch depth / clearance behind the latch
• Photos of the coupler latch in the open and closed positions
• Whether you need a latch lock, coupler surround lock, receiver lock, or trailer door lock
Why this matters: Trailer latch locks are application-specific. Similar-looking coupler latches can require different pin diameters, spans, depths, and lock styles.
InfiniteRule 61106-S Compatibility Check
| Fitment Point | 61106-S Reference | What to Verify |
|---|---|---|
| Lock Type | Trailer coupler latch lock | Confirm you need a coupler latch lock, not a receiver hitch lock, coupler surround lock, or trailer door lock |
| Latch Style | Hook, thumb, trigger, and yoke latch styles | Compare your latch shape and lock location to the intended latch style before ordering |
| Pin Diameter | 1/4″ | Measure the latch lock hole and confirm it accepts a 1/4″ pin |
| Pin Span | 1-1/8″ | Measure across the latch area to confirm the lock span is correct |
| Depth / Clearance | Approx. 3/4″ / 11/16″ depth reference | Check the depth behind the latch and confirm the lock body clears coupler hardware |
| Lock Clearance | Compact lock body with dust cover | Make sure there is room to install the lock, turn the key, and seat the dust cover |
| Replacement Scope | Latch lock only | Coupler, latch repair parts, receiver locks, door locks, and towing hardware are not included |
Match this lock by coupler latch style, pin diameter, usable span, latch depth, and lock-body clearance. Do not select it as a general trailer door or compartment lock.
Trailer Coupler Latch Lock Troubleshooting
| Issue | Possible Lock / Fitment Cause | Other Causes to Check |
|---|---|---|
| Pin will not fit through latch | Latch hole may not accept a 1/4″ pin or the holes may not be aligned | Paint buildup, rust, bent latch, wrong latch style, coupler damage, or misaligned latch mechanism |
| Lock is too short | Latch may require a wider span than 1-1/8″ | Different coupler latch design, oversized latch, thicker coupler hardware, or wrong InfiniteRule lock model |
| Lock is too deep or hits coupler | Latch depth or clearance may not match the lock body | Coupler shape, latch bracket position, surrounding casting, handle profile, or obstructed key access |
| Latch can still move | Lock may be installed through the wrong hole or may not block the latch movement on that coupler style | Wrong latch style, damaged coupler, lock not fully seated, or need for a different coupler lock type |
| Key will not turn | Lock cylinder may be dirty, wet, frozen, or under side pressure | Wrong key, worn key, debris in cylinder, missing dust cover, corrosion, or latch pressure on lock body |
| Dust cover will not stay on | Dust cover may not be fully seated or may be damaged | Dirt around lock body, stretched cover, cracked cover, or interference from coupler/latch hardware |
| Ordered wrong lock type | 61106-S is a trailer coupler latch lock, not a door, compartment, or receiver lock | Confirm whether the trailer needs a latch lock, coupler surround lock, receiver lock, door latch lock, or padlock-style hasp lock |
| Lock seized after storage | Moisture, dirt, or road grime may have entered the lock cylinder | Clean and maintain according to manufacturer instructions; keep dust cover seated when installed |
If fitment or locking issues continue, check coupler latch style, pin hole size, usable span, latch depth, lock-body clearance, key operation, and whether a different InfiniteRule latch lock model is required.
? Safety & Towing Warnings
This latch lock is a theft-deterrent accessory and does not replace proper trailer coupling procedures. Always confirm the coupler is correctly latched to the hitch ball, safety chains are attached, breakaway system is connected if equipped, and all towing components are properly rated before travel. Do not tow with a damaged, mis-sized, loose, or improperly installed latch lock or coupler assembly.
