Fili400

Hello all, I've searched and searched, but have been unable to get any information regarding the size/length/pitch of bolts that connect the cat to the exhaust. Anyone know?

Thanks,
Fili400

billydpowe

iTrader: (1)

I just bought mine at Sewell Lexus... they are not expensive. plus you will probably need the gaskets also.. http://lexus.sewellparts.com/

Fili400

Sounds like a plug for Sewell . I don't dispute that they are inexpensive, its just more about convenience when I can go down to the local hardware store to pick up a few bolts than having to deal with internet purchases and shipping. And I already have the gaskets. I'll use Sewell for other purchases as they appear to be very comprehensive and thorough for Lexus parts.

So, anyone know the diameter at least? If not, I guess I'll just pull them off this weekend, get the specs, and provide the information to others who may want to do this.

billydpowe

iTrader: (1)

I agree, just saw your my neighbor to the north.. and I dont plug Sewell, but they beat park place on everything I need.... I replaced my cats(ebay) on my 97LS, and needed a couple of them... good luck,

dashan

I put the socket onto the nuts.
The nuts on the rear joint of the converter want a 13mm socket. The nuts on the front joint want a 14mm socket. So an M8 bolt should be fine for the rear, M10 should be fine for the front.
Other members may want to put on additional information.

dashan

The bolt size to wrench size for the head for Japanese Industrial Standard is as follows:

4 mm bolt - 7 mm wrench
5 mm bolt - 8 mm wrench
6 mm bolt - 10 mm wrench
8 mm bolt - 12 mm wrench
10 mm bolt - 14 mm wrench
12 mm bolt - 17 mm wrench
14 mm bolt - 19 mm wrench
16 mm bolt - 22 mm wrench

Fili400

Thank you for your help.

dashan

Length of the bolts:
Bolt of front joint: 42 mm
Bolt of rear joint: 40 mm