Weather Guard 70554-760 Replacement Lock – Defender Series (Key Code K760)

OEM Weather Guard Part | Updated Design | Fits Defender Series Saddle Boxes & Chest Boxes

Upgrade or replace the lock on your Weather Guard Defender Series truck box with this genuine OEM Weather Guard 70554-760 replacement lock cylinder. This part is the current updated design issued by Weather Guard and may look different from older chrome versions, but it is fully compatible and installs the same.

Features

• Genuine Weather Guard OEM replacement lock

• Compatible with Defender Series truck tool boxes including most:

  • Saddle / crossbed boxes

  • Standard truck chest boxes

• Key code: K760 (includes matching key)

• Updated Weather Guard design:

  • Black outer housing

  • Red push-button core

  • Improved weather resistance and durability

• Direct replacement for older metal/chrome push-button lock cylinders

• Restores proper locking function and secure latching

• Easy installation using existing hardware and latch assembly

Important Notes

• This is the newest factory design. Weather Guard discontinued the previous all-metal chrome version.

• Not compatible with Defender Series Hi-Side boxes (these use part 70571-XXX).

• If you’re unsure whether this fits your toolbox, check the model number inside your lid or contact us—we’re happy to confirm compatibility.