These solid mounts replace the rubber diode board mounts and avoid the common problem of the rubber mounts breaking and allowing the diode board to short against the front case. The threads are metric, and take the same nuts as the original part.

In addition they improve the electrical grounding of the board.

They are sold as a set of 4.

If ordered with a diode board you will save a few dollars.

Note on installation:
Some people have asked how the old mounts are attached to the
timing cover and how best to remove them and install the new ones.

The holes through which the mounts pass are not threaded. The mounts are held with nuts on the other side of the front cover. These nuts can be accessed by removing the top engine cover over the starter motor area. The lower, left mount (viewed from the front) can be a bit of a pain to get at on some models, but with patience and a small wrench it is quite possible. IT IS NOT necessary to remove the front timing cover. The studs on the new mounts have allen (hex) heads which makes the job of tightening after installation a lot easier than the rubber mounts.

Note on application:
Some engine models (/5, /6 etc ) are equipped with solid diode board mounts as part of the timing cover casting, and therefore do not need these replacement parts.