JesseRohr

I'd like to swap from the black ones to red...haven't had much luck finding any that are anodized, not painted.

SpeeddemonC2

My Porsche dealership says they (red anodized CLs) are not available for the 991 GT3s... Is he mistaken?

Mike in CA

He's not mistaken from what I understand; the red CL bolts that are available are only for the 997. The wheel bolt and the wheel bolt locking assembly are designed to work together and according to Porsche "under no circumstances use the 997 lockable wheel bolt on the 991!" (direct quote from the workshop document including the exclamation point).

A 991 locking assembly and 997 wheel bolt weren't designed for each other even though they may seem to fit. In fact, according to the workshop document the bolt and locking assembly are only available as a pair. I'd love to have red CL bolts to match my car color but due to an overabundance of caution over the CL wheels in general, I won't use a part that just seems to fit. I'll wait for the recommended 991 part to be available. Just my $.02....

ipse dixit

You're best bet is to get them anodized yourself.

Mike in CA

I don't think I am incorrect. They may be OEM, but I'll wager they're OEM for the 997 not the 991. As I posted above, the 997 bolts will "fit" on a 991 but they are not designed to pair with the 991 locking mechanism and Porsche specifically warns against using them. FWIW, if you look on the Suncoast parts site you'll find red CL bolts for the 997, but not the 991.

They look great; I believe I saw your friend's car in person at Werks Reunion in Carmel last August.....even took a pic of the wheel and red CL bolt (below). After doing research, though, I found that they had to be a 997 part. Your buddy may be willing to take the risk using 997 parts on his 991 for the sake of appearance, but given all the fuss and issues surrounding CL's, I'm not. TEHO.

Shivatron

That is definitely a 997 CL nut on a 991. Here's a picture of a 991 nut; note the different shape of the splines:

Mike in CA

Bingo.

Understood, AC. I may be over cautious, but the fact that someone hasn't had an issue (yet) doesn't mean there isn't the potential for a problem. It's particularly concerning when the manufacturer goes out of their way to state that a specific part shouldn't be used. Maybe it's out of an overabundance of caution on their part too....I don't know.....but there's at least a possibility there's a good reason for the warning.

Maybe your buddy will never have a problem; I hope not. One of the nice things about a forum like this is that people can get all the information they need in order to make good decisions. Now they have the info and the decision is up to them. Cheers.

Alan C.

If PAG changed the thread geometry that could result in different loading on the thread surfaces. With around 440 lb/ft of torque that could be a not so insignificant scenario.