Routing single ip to remote ipsec site

[Primax98]

Hi guys. i have a vpn to a remote site and traffic appears to be flowing nice and working as should. However i want to send traffic from one ip to a remote ipsec gateway. My ipsec tunnel is set to ipv4 tunnnel.
My lan 192.168.0.0/24 G/W 192.168.0.4 (ipsec tunnel over internet) Remote Lan 192.168.5.0/24 G/W 192.168.5.1

Device with static ip address 192.168.0.42 255.255.255.0 G/W 192.168.0.4

Thank you for looking