waterpump bolts

[gte-87]

Hi does any one know the size of the water pump boots for nova or if can buy them from any were thanks dan

[Dave A]

They take a 6mm allen key socket, if that helps. Don't forget you need a large washer as well, the genuine ones have a shoulder on the top which makes it a pain to remove the original washers. Don't forget some copaslip when you put them in as well, saves trouble down the line.

[mowgli]

they are m6x18. gm part no. 90194536

gm dealer will be able to do them, or any decent nut & bolt shop should be able to order them, or at the worst do some 20mm ones & sell you some thick washers.

[gte-87]

Thanks for help ordered them today