Here’s a fact that should terrify every RV owner: the key to your RV’s storage compartments probably opens thousands of other RVs, too.
It’s called the CH751 problem, and it’s one of the RV industry’s worst-kept secrets. Manufacturers use a handful of universal key codes across entire product lines — meaning someone with a $3 key from Amazon can access your propane compartment, electrical panel, and storage bays without any sign of forced entry.
If you’ve ever wondered why experienced RVers immediately swap out their locks, now you know. This isn’t paranoia — it’s basic security.
This guide covers everything you need to know about RV lock security: which locks are vulnerable, what replacements actually work, installation considerations, and how to create real security layers that deter thieves and protect your investment.
The CH751 Problem: Why Factory Locks Fail
What Is CH751?
CH751 is a key code — essentially a specific cut pattern that manufacturers use across multiple brands and models. If your RV’s storage compartments, utility bays, or baggage doors use tubular locks (the round ones that look like vending machine locks), there’s a strong chance they’re keyed to CH751.
The same key opens:
- Storage compartments on most RVs
- Propane compartment covers
- Electrical access panels
- Water hookup doors
- Some entry doors on older models
Why Manufacturers Do This
It’s simple economics. Using standardized locks across product lines reduces manufacturing costs. RV dealers can provide replacement keys without placing a custom order. Service technicians carry one key that works on most units they encounter.
The problem? So do thieves.
How Bad Is It Really?
A quick Amazon search for “CH751 key” returns dozens of results, most under $5 for a set. RV forums are filled with stories of owners discovering their “secure” compartments were accessible to anyone with basic knowledge.
One RVer on a popular forum tested his CH751 key at a campground and reported that it opened storage compartments on 8 out of 10 RVs he tried (with the owner’s permission). That’s not an anomaly — it’s the norm.
Types of RV Locks (And Which Need Upgrading)
Entry Door Locks
Your RV’s main entry door is your first line of defense. Factory entry locks vary significantly in quality:
Standard Factory Locks ($20-50 replacement cost)
- Basic pin tumbler mechanisms
- Often keyed alike across models
- Deadbolt equivalent of a suggestion, not a barrier
What to Look For in Upgrades:
- True deadbolt mechanism (not just a latch)
- Unique key codes (not universal)
- Metal construction (not plastic components)
- Reinforced strike plates
Top Entry Lock Upgrades:
1. RVLock V4.0 Keyless Entry (~$170-200)
- Eliminates keys entirely
- Remote fob + keypad entry
- Fits standard RV door prep
- No drilling required on most models
2. AP Products 013-222 Deadbolt (~$45-60)
- True deadbolt mechanism
- Unique key code
- Direct replacement for many factory locks
- Metal components throughout
3. Bauer NE Electric Lock (~$130-150)
- Keypad entry
- Battery backup
- Fits standard preparations
- Available in multiple finishes
Storage Compartment Locks
This is where the CH751 problem hits hardest. Every external storage compartment is a potential entry point.
Replacement Options:
1. Cam Lock Upgrades (~$8-15 each)
- Replace tubular locks with standard cam locks
- Get unique key codes
- Available keyed-alike (one key for all your locks, but unique to you)
2. Combination Locks (~$25-40 each)
- No keys to lose or copy
- Individual codes for each compartment if desired
- RVLock makes RV-specific combination cam locks
3. Bauer Replacement Locks (~$20-30 each)
- Direct replacements for common RV lock styles
- Available in keyed-alike sets
- Higher security than factory options
Hitch and Coupler Locks
If you have a travel trailer or fifth wheel, your hitch is a critical security point.
Coupler Locks (~$25-75)
- Prevent coupling to unauthorized tow vehicles
- Look for hardened steel construction
- Bright colors deter opportunistic theft
King Pin Locks (fifth wheels, ~$50-150)
- Block king pin from engaging
- Critical for fifth wheel security
- Heavy-duty versions resist cutting attempts
Receiver Locks (~$15-40)
- Lock the hitch receiver when not in use
- Prevents theft of hitch components
- Choose an appropriate pin diameter
Wheel Locks and Boot Systems
The ultimate visible deterrent — if they can’t move it, they can’t steal it.
Wheel Chocks with Locks (~$40-80)
- Combined chocking and locking
- Visible deterrent
- Work on any tire size
Boot-Style Wheel Locks (~$75-200)
- Cover the entire wheel
- Highly visible
- Require a specific key to remove
- Heavy and awkward for thieves to defeat
Tongue/A-Frame Locks (~$30-60)
- Lock to trailer frame
- Prevent towing even if the coupler is defeated
- Use with a coupler lock for redundancy
Installation Considerations
DIY vs Professional Installation
You Can Probably DIY:
- Storage compartment cam locks (basic hand tools)
- Hitch and coupler locks (no installation required)
- Wheel locks and chocks (no installation required)
- Simple entry lock swaps (matching existing door prep)
Consider Professional Installation:
- Entry locks requiring door modification
- Electronic lock systems with wiring
- Locks requiring new hole drilling
- Any installation you’re not confident about
Tools You’ll Need
For basic lock replacement:
- Screwdrivers (Phillips and flathead)
- Drill and bits (if new holes needed)
- Measuring tape
- Pencil for marking
For more complex installations:
- Hole saw kit (for entry locks)
- Jigsaw (for non-standard cuts)
- Metal file (for adjustments)
- Electrical tools (for powered locks)
Installation Tips
1. Photograph everything before removal — You’ll thank yourself later
2. Keep factory hardware — May need it for warranty service or selling
3. Test locks before final installation — Easier to adjust when not fully mounted
4. Consider weather sealing — RV doors and compartments need to stay waterproof
5. Document key codes — Store in a secure location, not in the RV
Wyoming-Specific Security Considerations
Remote Camping Realities
Wyoming offers incredible dispersed camping opportunities — and increased security concerns. When you’re 30 miles from the nearest town:
- Cell service may be limited — Security cameras that rely on cellular transmission may not work
- Response times are long — Deterrence matters more than detection
- Wildlife is a factor — Bears have learned that RVs contain food; rodents nest anywhere
Winter Storage Security
If you’re storing your RV for Wyoming’s harsh winters:
- Lock it completely — Every compartment, every door
- Remove valuables — Don’t give thieves a reason
- Consider a GPS tracker — Know if your RV moves
- Choose storage location carefully — Fenced facilities with cameras are worth the cost
- Maintain insurance — Comprehensive coverage matters during storage
Temperature Effects on Locks
Wyoming temperature swings (from -20°F to 90°F) affect lock mechanisms:
- Lubricate regularly — Use graphite, not WD-40 (attracts dust)
- Electronic locks need quality batteries — Cold drains batteries faster
- Keypad locks may need cold-weather models — Some freeze up below zero
- Metal contracts and expands — Locks may stick seasonally
Building Layers of Security
No single lock makes your RV secure. Effective security uses multiple layers:
Layer 1: Deterrence
- Visible wheel locks
- Obvious security cameras
- Motion-activated lights
- Security system stickers (even if you don’t have a system)
Layer 2: Delay
- Quality entry door locks
- Upgraded storage compartment locks
- Hitch and coupler locks
- Heavy-duty padlocks on external equipment
Layer 3: Detection
- Motion sensors
- Door/window sensors
- GPS tracking
- Cellular-enabled cameras
Layer 4: Documentation
- Serial numbers recorded
- VIN documentation
- Photographs of valuables
- Inventory list for insurance
Cost Breakdown: Upgrading Your RV Security
Budget Option (~$150-250)
- Entry door deadbolt upgrade: $50
- Set of 4 keyed-alike cam locks: $40
- Coupler lock: $40
- Receiver lock: $20
- Basic wheel chock with lock: $50
Mid-Range Option (~$400-600)
- RVLock keyless entry: $180
- Complete cam lock replacement (6): $90
- Kingpin or coupler lock (quality): $80
- Wheel boot: $120
- Basic GPS tracker: $80
Comprehensive Option (~$800-1,200)
- Electronic entry system: $200
- Complete lock replacement throughout: $150
- Heavy-duty hitch security: $150
- Wheel lock system: $200
- GPS tracker with subscription: $100 + monthly
- Security camera system: $200-400
Common Mistakes to Avoid
1. Relying on one lock — Thieves know how to defeat any single measure
2. Choosing convenience over security — Easier for you often means easier for them
3. Ignoring storage compartments — They’re entry points, not just storage
4. Buying cheap locks — Low-quality locks provide false confidence
5. Forgetting about insurance — Security upgrades may lower your premiums
6. Hiding keys on the RV — Magnetic key boxes are the first place thieves check
7. Using padlocks on everything — Creates a target-rich environment for bolt cutters
Making the Switch: Step-by-Step
Ready to upgrade your RV’s security? Here’s the action plan:
Week 1: Assessment
- Identify all locks on your RV
- Photograph each lock and note the type/size
- Research replacement options for your specific RV
- Budget and prioritize
Week 2: Entry Door
- Order entry door lock upgrade
- Install or schedule installation
- Test thoroughly before relying on it
- Program any code and create backups
Week 3: Storage Compartments
- Order cam locks (keyed alike)
- Replace all CH751 locks
- Test each compartment
- Document the new key code
Week 4: Hitch and Wheels
- Install coupler/kingpin lock
- Add wheel deterrent
- Create usage routine (always lock when parked)
Ongoing: Maintenance
- Lubricate locks quarterly
- Test electronic systems monthly
- Replace batteries proactively
- Review security with each camping setup
Final Thoughts
Your RV represents a significant investment — not just financially, but in the lifestyle and freedom it provides. Factory locks are a starting point, not a solution.
The good news: upgrading your RV’s security doesn’t require professional installation or a massive budget. A few hundred dollars and a weekend of work transform your RV from an easy target to a hardened asset that thieves will pass by in favor of easier marks.
Start with the entry door and storage compartments — they’re the highest-impact upgrades. Add hitch security if you have a towable. Consider electronic options for convenience without sacrificing security.
And when you’re camping at Rone’s RV Park or anywhere in Wyoming, you’ll have the peace of mind that comes from knowing your RV is actually protected — not just locked with a key anyone can buy for $3 online.
Looking for a secure home base for your RV in Wyoming? Rone’s RV Park in Casper offers full-hookup sites with excellent sight lines and a community that watches out for each other. Contact us to learn about monthly rates and availability.