OEM Diesel Exhaust Fluid (DEF) Emissions Exhaust Pump Lock Ring for 2016-2019 Nissan Titan XD models equipped with the CEV8D1 Cummins Turbo Diesel engine.

The DEF Pump is responsible for dispersing DEF fluid throughout the system, and this Lock Ring ensures it is a installed securely in place between the lower cover and DEF Tank. DEF is a liquid that lowers the amount of air pollution created by the Cummins Turbo Diesel in your A61 Titan XD. Aside from the environmental benefits, if you run low or out of DEF fluid or experience leaks/system failure, you risk internal damage as well as a noticeable loss of performance from your engine.

Ensure optimal function and fitment with this genuine Nissan replacement part.

Sold individually.

Fits:

• 2016-2019 Nissan Titan XD
  • CEV8D1 equipped models only