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Alignment bolt kit with eccentric lock

Eccentric bolt lock kit
Alignment bolt kit with eccentric lock
New parts along with the exclusive Paco Motorsports eccentric lock.

Exclusive to Flyin' Miata

Availability: In stock



This is a kit that includes a new alignment bolt and nut (both Mazda parts) along with the Paco Motorsports eccentric lock.

If you've ever run your Miata on the track, you know that those alignment cams can slip. If you're lucky, it just ruins a session. You can change out the bolts on a regular basis and crank the torque way up on the nuts - but there's always that risk.

Until now! Paco Motorsports has come up with a simple solution to lock in your alignment perfectly. These locks replace the offset washer on an alignment bolt and prevent it from moving. They key into the same ridges used by the stock washer. The center section can be placed in any one of 16 positions.

Includes a new factory bolt and nut. You will have the easiest time aligning if you also have the factory washer on hand, but as this is not a wear item we don't include it with this kit.

Sold individually. You can use as many as eight on a car, although not all cams are as prone to slipping. Fits all NA and NB Miatas. If you have tubular V8Roadsters control arms, these can also be used on the problematic outer cam on the front lowers.

Additional Information

Additional Information

Part number 13-98201
Fits: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004 (non-MSM), 2005 (non-MSM), MSM
Manufacturer Flyin' Miata
Flyin' Miata exclusive Yes
Fits Exocet? Yes
Proposition 65 Warning: Cancer and reproductive harm
California emissions No

Customer Reviews 4 item(s)

dont Buy.
Kit doesn’t come with the stock washers which in my opinion is pretty lame. Instructions say to align car with the oem washer yet they don’t give you one.... if you want to go through the headache of finding the oem h shaped washers go ahead and buy this. Or spend 80$+ on a full set of bolts and washers on top of this kit.

Note from FM: The majority of Miatas have stock washers from the factory, which is why they're not included.
Review by Noah / (Posted on 3/25/2020)
Too frustrating to align with
The locking washer did not work well at all for my 1995 Miata. It made it extremely difficult to align car due to how hard it was to get locks to fit. I purchased OE replacements and alignment was a breeze. Not worth the expense or frustration.
Review by Black and boosted, Ian C / (Posted on 12/11/2019)
Ok, but still wear out after hard cornering
Held for about 2 years of medium to hard cornering. After that, the teeth on the lock wore out and there was no more thread on the nut. Better than no eccentric locks I guess.
Review by V / (Posted on 10/10/2019)
Every Miata should have these
Alignment will take a little more time but these things take a beating! My alignment used to slip after normal driving on bumpy roads, but after installing these I’ve been to two drift events and the alignment is still good to go!
Review by doomwizard / (Posted on 6/12/2019)
Click here for instructions for this part.