The best surge brake lockout keys enable quick, tool-free parking and storage of your boat trailer. This guide compares five top options designed for UFP-type systems (A-60, A-70, A-75, A-84), helping you choose the right key set for durability, ease of use, and field reliability. Ideal buyers include frequent trailer parkers, boat yard workers, and RV/boat enthusiasts who want a secure, tape-free lockout solution. The table below summarizes the five products chosen for clear comparison.
| Product | Brand | Best For | Key Feature |
|---|---|---|---|
| C CLINK Surge Brake Lockout Key W/Magnetic | C CLINK | One-off installations and single-user setups | Magnetic lock with UV-resistant webbing |
| C CLINK 2 PCS Lock Out Key W/Magnetic | C CLINK | Spare keys and multi-vehicle trailers | Two keys with magnetic lock and robust strap |
| FUYEAR Magnetic Trailer Surge Brake Lockout Key | FUYEAR | Durable, weatherproof use | Heavy-duty build with UV-resistant webbing |
| UASAM Surge Brake Lockout Key Magnetic | UASAM | Bright color visibility and easy installation | Magnetic, orange powder-coated steel |
| Hicarer 4 Pcs Trailer Brake Lockout Key Set | Hicarer | All-in-one kit for multiple models | Two manual and two magnetic keys |
C CLINK Surge Brake Lockout Key W/Magnetic

Best for: single-user setups needing a straightforward magnetic lock. This key uses a magnetic ring with a larger surface to secure the lock without tape or clamps. It replaces the factory silver key 34557 for A60/A70 actuators and is designed for off-road or boat yard use. The included webbing provides easy removal and UV resistance for sun exposure and rain. Limitation: magnets are not neodymium, prioritizing ease of installation over maximum magnetic strength.
C CLINK 2 PCS Lock Out Key W/Magnetic

Best for: households needing a spare or two identical keys. This pack mirrors the single-key design with magnetic lock and robust webbing, suitable for A60/A70 actuators. It improves reliability by avoiding tape, rubber bands, or clamps. Caution: ensure you don’t rely on the keys for critical daily locking in harsh environments; test fit in your lock cylinder before long trips.
FUYEAR Magnetic Trailer Surge Brake Lockout Key

Best for: users needing universal compatibility with A-60, A-70, A-75, and A-84 actuators. This one-piece set emphasizes easy installation with no tape or clamps, and a durable, UV- and water-resistant strap. It is chosen for its straightforward replacement of the factory key 34557 and its bright orange, high-visibility finish. Limitation: magnetic design may be less secure in extremely high-vibration environments than multi-lock systems.
UASAM Surge Brake Lockout Key Magnetic

Best for: buyers seeking high visibility and easy on-trailer installation. The UASAM key uses heavy-duty steel with a laser-cut magnetic lock and bright orange finish. It replaces the factory key 34557 and is suitable for off-road use and boat yards. Limitations: magnetic keys can be visually conspicuous and may require occasional realignment if the magnetic surface wears with heavy use.
Hicarer 4 Pcs Trailer Brake Lockout Key Set

Best for: trailer owners needing an all-in-one kit for multiple models. The set includes two manual and two magnetic keys, designed to fit most SAE-sized lock cylinders and UFP systems. The multi-piece design reduces the chance of being without a key during maintenance. Caution: ensure you store the spare keys in a secure, dry location to prevent rust over time.
Buying Guide
What should I consider when choosing a surge brake lockout key?
Key considerations include compatibility with your actuators (A-60, A-70, A-75, A-84), ease of installation, and durability in sun, rain, or salt exposure. Magnetic lock designs reduce the need for tapes or clamps, but the strength of the磁 surface and the ease of removal matter for quick parking and storage. UV-resistant webbing and corrosion-resistant materials extend service life.
Manual vs. Magnetic: which is better?
Magnetic keys are typically easier to install and remove, especially for one-person operations. Manual keys can be more secure against accidental disengagement in rough terrain but may require additional tools or steps during installation. If you park on uneven ground often, a magnetic lockout with a robust strap is generally more practical.
How many keys should I buy?
For most trailers, starting with a 2-piece or 4-piece set provides sufficient backups. If you manage multiple trailers or storage spaces, a larger kit helps avoid downtime due to lost keys. Consider having at least one spare that stays on the vehicle or in a dedicated toolbox.
Is durability important for trailer keys?
Yes. Choose keys with UV-resistant straps, corrosion-resistant coatings, and sturdy steel construction. This reduces wear from sun exposure, rain, and road debris, and helps maintain reliable engagement over time.
Where should I store the lockout key?
Store away from heat sources and moisture, ideally in a sealed container or shielded pouch. If the key is magnetic, avoid prolonged contact with electronics or magnetic-sensitive devices.
FAQ
- Q: Are these lockout keys universal for all UFP actuators? A: Most are designed for A-60, A-70, A-75, and A-84 actuators, but always verify compatibility with your exact model.
- Q: Do these require any tools to install? A: No tape, rubber bands, or clamps are typically needed; magnetic designs enable easy one-person installation.
- Q: Will these keys fit on all boat trailers? A: They fit many SAE-sized lock cylinders commonly used on UFP systems, but check your trailer’s lock specifications.
- Q: Are magnetic lockouts stronger than manual keys? A: Magnetic locks simplify use and removal, but strength varies by magnet type and design; both can be reliable when properly used.
- Q: What material are these keys made of? A: Many are steel with powder-coated finishes or protective coatings to resist corrosion.
- Q: Do these kits include spare webbing for replacement? A: Some sets include webbing and rivets for secure mounting; verify kit contents before purchasing.