Mackay Heater Hose 180 degree bend, suits Nissan Patrol GQMackay Heater Hose 180 degree bend, suits Nissan Patrol GQ GU We have used this on our Nissan Patrol GQ BMW M57 Swap. These are sold as a pair. This hose suits the factory Nissan Heater house outlets on the firewall. As the heater hose connections are on the drivers side on a GQ and Passenger side on the M57 these were perfect to allow us to run the heater hose across the firewall using hard line.