Hi there,

Does anybody know if there is any big difference between the 2 sensor water pumps that are on the 1.7 engine . Opel Astra J
The sensor pump from nr crt 8 is very expensive and very hard to find, i'm wondering if i can change it with nr crt 7 and also change the pulley as it's different.
Basically should do the same thing no?

I have attached a photo with the 2 water pumps

Thanks,