SJL100200 Brake Reservoir Cap Defender 87–16

This is the Brake Master Cylinder Reservoir Cap (part number SJL100200) engineered for Land Rover Defender models (1987–2016). It includes the fluid level warning sensor connection, ensuring the brake fluid reservoir remains sealed while enabling warning circuit functionality.

It supersedes NTC4414 and is often cross-referenced with SJL100200, SJL500030, and 74470738

[FAQ]
Will this cap fit non-ABS Defender models?
Yes  while many listings highlight ABS versions (post-1998), this same cap is often used on non-ABS reservoirs depending on sensor circuit usage. Confirm sensor pin style before ordering.

Is the sensor wiring included?
No. This cap includes the terminal contact point, but wiring or harness must be reused or sourced separately.

How do I know the old cap is bad?
Signs of failure: fluid leaks, cracked plastic, corroded sensor contacts, or false low fluid warnings on the dash.