This article compiles top-rated surge brake lockout keys for UFP systems, helping you choose reliable replacements to prevent accidental brake engagement during maneuvers. Each option offers magnetic lockout, durable materials, and easy installation. The list highlights compatible models (A-60, A-70, A-75, A-84) and practical features like UV-resistant webbing and visibility aids for quick identification.
| Product | Brand | Key Benefit |
|---|---|---|
| Noa Store Surge Brake Lockout Key | Noa Store | Bright orange, magnetic lock, simple install |
| Surge Brake Lockout Key W/Magnetic | C CLINK Store | Large magnetic surface, easy to remove |
| 2 PCS Lock Out Key W/Magnetic | C CLINK Store | Two keys, UV-resistant webbing |
| 5 Pack Trailer Brake Manual Lockout Key | Various | Bulk set with lanyards for spares |
| THD Magnetic Boat Trailer Lockout Key | THD Store | Dual pack, Hi-Vis orange coating |
Noa Store Surge Brake Lockout Key

The Noa Store lockout key is designed as a magnetic replacement for the silver factory key 34557 and supports A60 and A70 actuators. It eliminates the need for tape, rubber bands, or clamps to secure the key, improving installation speed and stability. The bright orange lockout features a short webbing loop for easy handling and visibility, helping prevent forgetfulness when removing the key after use. This model emphasizes compatibility and straightforward installation for UFP surge brake systems.
Surge Brake Lockout Key W/Magnetic

This product provides a magnetic lock replacement for the UFP A60, A70 actuators. It aims for a stable, reliable fit and easy removal, avoiding the complexity of neodymium magnets for simpler handling. The webbing is UV-resistant, designed to withstand sun exposure and rain, and comes with stainless rivets to secure the strap. Intended for off-road and boat yard use, it focuses on secure operation and practical installation for remote trailers.
2 PCS Lock Out Key W/Magnetic

This listing includes two magnetic lockout keys designed as replacements for the silver factory key 34557, compatible with A60 and A70 actuators. It features a larger magnetic surface area for stronger attraction, straightforward installation, and easy removal. The product notes avoid neodymium magnets to simplify handling, and the webbing is UV-resistant to resist sun and rain exposure, with stainless rivets for durable attachment.
5 Pack Trailer Brake Manual Lockout Key

This bulk set includes five lockout keys and five black lanyards, delivering ample spares for ongoing maintenance. The keys are designed to prevent brake engagement on soft ground or gentle slopes. The lanyards help secure keys to prevent loss, and the kit emphasizes safe operation by advising removal before driving. It is suitable for operators who want multiple backups and incremental readiness for trailer use.
THD Magnetic Boat Trailer Lockout Key

The THD lockout key is built for maneuvering trailers and back-up operations, compatible with UFP surge brake models A60, A70, A75, and A84. It uses a heavy-duty steel construction with a Hi-Vis orange powder coating for visibility and durability. This option emphasizes resilience for frequent use in varied conditions and comes in a dual-pack format for convenience.
Buying Guide: Key Considerations for Surge Brake Lockout Keys
Choosing the right surge brake lockout key involves evaluating fit, durability, and ease of use across typical towing scenarios:
- Compatibility: Verify that the key supports UFP models A60, A70, A75, and A84, as listed in product descriptions. Some keys mention Dexter or UFP branding; ensure it matches your trailer’s actuator.
- Magnetic vs. mechanical lock: Magnetic lockouts simplify installation and removal, especially on busy days. Mechanical or strap-based designs may offer stronger retention in rough conditions but can be more cumbersome to operate.
- Materials and finish: Look for UV-resistant webbing and corrosion-resistant hardware (stainless rivets, stainless steel components). Hi-Vis coating aids visibility, reducing loss risk when detaching the key.
- Installation and removal: Favor products with simple installation—no tapes or clamps needed—and easy removal to prevent accidental brake engagement when moving.
- Included accessories: Lanyards or packs provide convenient backups. If you frequently tow different trailers, consider a multi-pack option to cover spare keys and replacements.
- Storage and visibility: Bright colors and clear locking indicators help you confirm the key’s status at a glance, especially in low-light conditions.
- Durability for outdoor use: Outdoor exposure, rain, and sun demand UV-resistant construction and corrosion resistance for long service life.
When selecting a product, balance the number of pieces in a pack with the expected maintenance schedule and usage patterns. For occasional use, a single, reliable key may suffice; for fleet or frequent trailer maneuvers, a multi-pack with additional lanyards provides redundancy and safety.