Spicer Differential Lock Wiring Harness P/N:10021771
Keep your Dana 44 locking differential reporting its status accurately with the genuine Spicer Differential Lock Sensor 2004882. It installs as a direct-fit replacement for the 2007-2017 Jeep Wrangler and the 2018 Jeep Wrangler JK (all engines), detecting whether the electronic locking differential is engaged and relaying that signal to the vehicle.
On a Dana 44 axle fitted with an electronic locker, this sensor monitors the lock/unlock state of the differential so the system knows its current position. If a faulty original sensor is the cause of a differential-lock warning light or a lock status that won't register, this replaces it — diagnose the underlying cause before replacing.
Country of origin: Japan.
What does the Spicer 2004882 do?
It is a differential lock sensor that detects whether the electronic locking differential is engaged and relays that status signal to the vehicle.
Which vehicles does this fit?
It is a direct-fit replacement for the 2007-2017 Jeep Wrangler and the 2018 Jeep Wrangler JK (all engines). See the Buyer's Guide tab to confirm your vehicle.
Which axle is this sensor for?
The catalog lists it for the Dana 44 axle model equipped with an electronic locking differential.
Is this a genuine Spicer part?
Yes. It is a genuine Spicer sensor built to meet OE standards set by Dana and validated to rigorous OE specifications.
What are signs this sensor may need replacing?
A differential-lock warning light or a lock status that won't register can be signs. Diagnose the cause first, since other components can produce the same symptoms.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.