Hi everyone,
I'm looking smooth idler pulley bolt for my 2012 g37Xs. One with thicker bolt on the left side the one I'm looking for, I do have the right pulley but I don't have the bolt, I can't use the old bolt because it's striped and rounded.
I found one bolt online and I bought it but it was the one on the right side and that's much thinner than other.
Any idea where can I find the right size or what is the solution for this?
Thank you!

 

you try calling nissan

 

Doesn't the new pulley come with the bolt?

 

Looks like the pulley is the wrong size as well

 

I called the Infiniti and Nissan they said they they only selling with the pulley.
pulley in the picture is not the right one I know that’s just old picture to show you guys the right bolt size. I have the right Size of pulley right But didn’t came with the bolt.
any thoughts where can I get the bolt or any specs for right bolt size?

 

What does that pulley go to?

 

it’s the smooth idler pulley

 

Best advice: take the damaged bolt and/or the bolt from one of the other idler pulley's to either a auto parts or hardware store. A competent shop should be able to match up the bolt you need. It is not like the bolt is unique or rare.

 

I would have a look at the scrap yard, they are the cheapest place to get good quality OEM parts.

From past experience, using a non-automotove grade bolt can cause problems.
They won't have the corrosion resistance or proper strength.

You don't want that idler bolt to break and have the belt wrap around the front of the engine and yank on all the wires it can.
Just ask the Q50 VR30 folks.

 

Sorry should of read that on top.according to z1 Motorsport that is a 10 mm bolt. I would give them a call and see if they can sell you just the bolt for your car

 

Pepboys has bolt

 

Hex partial M12-1.5 x 50mm if you’re in a bind call your local pick and pull, or goto Lowe’s they carry a M12-1.5 x 40mm. You would need to create your own dust shroud for bearings.

M12-1.5 x 40mm grade 8 or higher
2in washer x 2
1in washer x 4

get enough washer to create clearance. about a 3/16in above ridge/ flat side of pulley