This is a PCV Valve Membrane Diaphragm repair kit, located on the cylinder head cover.
Direct fit replacement part.

Vehicle Fitment:

Compatible with 2019 Land Rover Discovery 3.0L V6
Compatible with 2018 Land Rover Discovery 3.0L V6
Compatible with 2017 Land Rover Discovery 3.0L V6

Compatible with 2016 Land Rover LR4 3.0L V6
Compatible with 2015 Land Rover LR4 3.0L V6
Compatible with 2014 Land Rover LR4 3.0L V6

Compatible with 2019 Range Rover 3.0L V6
Compatible with 2018 Range Rover 3.0L V6
Compatible with 2017 Range Rover 3.0L V6
Compatible with 2016 Range Rover 3.0L V6
Compatible with 2015 Range Rover 3.0L V6
Compatible with 2014 Range Rover 3.0L V6

Compatible with 2019 Range Rover Sport 3.0L V6
Compatible with 2018 Range Rover Sport 3.0L V6
Compatible with 2017 Range Rover Sport 3.0L V6
Compatible with 2016 Range Rover Sport 3.0L V6
Compatible with 2015 Range Rover Sport 3.0L V6
Compatible with 2014 Range Rover Sport 3.0L V6

Compatible with 2019 Range Rover Velar 3.0L V6
Compatible with 2018 Range Rover Velar 3.0L V6

Compatible with 2013-2017 Jaguar XF 3.0L V6
Compatible with 2013-2017 Jaguar XJ 3.0L V6
Compatible with 2014-2020 Jaguar F-Type 3.0L V6
Compatible with 2017 Jaguar XE 3.0L V6

For 5.0L V8 Engine, 2 pieces will be needed.