HardBlock HBE121 — Toyota 8\" IFS Front Electric Differential Locker(3.73 & Down) For Sale - New and Used

HardBlock HBE121 — Toyota 8\" Electric Front Differential Locker for Toyota Tacoma, 4Runner and FJ Cruiser (3.73 & Down)
Important Fitment Before purchasing, you must confirm your vehicle’s factory gear ratio. The easiest way is to contact a Toyota or Lexus dealer, provide your VIN number, and ask them to confirm the front differential gear ratio. Depending on the installed gear ratio, your vehicle may require either an HBE111(3.91&Up) locker or an HBE121(3.73&Down) locker.
This model HBE121 is specifically designed for Toyota Tacoma, Toyota 4Runner and Toyota FJ Cruiser — and may also fit other vehicles (Please check product compatibility on the HardBlock website or in the ARB catalog).
HardBlock provides instant engagement, 100% torque transfer, and maintenance-free operation — making it one of the most advanced differential lockers for 4×4 vehicles on the market.

While competitors hide reinforced construction behind an extra charge in their “Performance” versions, HardBlock gives it to you as standard. The locker body is manufactured from high-alloy steel and heat-treated, providing increased strength, longer service life, and resistance to extreme off-road loads.

HardBlock uses a Patented ball-locking system instead of small pins or fragile locking teeth. The hardened steel ball carries the load and allows the locker to engage at ANY time!
Technical Advant

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