Downpipe Nut Part #?
 

I'm looking for the part number for the nut that fastens the downpipe. I've easily found the part number for the stud 100x over but haven't been able to find it for the nut. I've searched, looked at the parts manual and went to the dealership with no success. I know someone probably has this information laying around :)

Thanks.

the engine end of the DP uses JE10-40-355. if you prefer the older cars used a non locking nut, it is 8134-40-355.

the main cat end is JE11-40-355 in locking, and 8118-40-355 in the older style non locking

the older style needs to be used with a lockwasher. the big one is 9997-11-200 smaller one is either 9997-11-000 or E508-20-523

WOW...

All I can say about that little bit 'o knowledge.


I was gunna suggest calling Ray Crowe at Malloy Mazda (703-490-8170) since he's the man for OEM, new, parts. I riffled through all my old receipts since I ordered new studs and bolts about a year ago, would have pulled the part number from that. Unfortunately I couldn't find the receipt though =\.

dont forget to use anit-seize

just got them the other day:

4 - 9YA9-21-008 Exhaust Studs (turbo to downpipe) $11.10 each
1 - RF36-40-305 Gasket (downpipe to cat) $7.32
4 – JE10-40-355 Nut (turbo to downpipe) $4.08 each
2 – JE11-40-355 Nut (downpipe to cat) $4.44 each
1 – N3B7-13-491A Gasket (turbo to downpipe) $70.80

I love this forum. Thanks fellas!

I have a parts catalog for every RX-7 ever made. from 1979-1995, if you need any part number let me know and ill find it out for you.