Reservoirs, Caps & Covers
About Reservoirs, Caps & Covers
A brake reservoir holds the fluid that feeds the master cylinder, and its cover or cap keeps dirt and moisture out. Owners shop this category to replace a cracked or lost cover, or to change the look of the brake.
There is one listing here, a billet front brake reservoir cover for an ATV in red, from Works Connection. A billet cover is machined from a solid block of metal. Check that the cover is made for your master cylinder, since reservoir shapes and screw spacing differ. If your reservoir has a rubber diaphragm under the cover, refit it correctly, and keep the cover tight so fluid cannot leak or absorb moisture.
The brand here is Works Connection. For the part this cover belongs to, see Brake Master Cylinders. Related categories are Brake Lines, Hoses & Fittings and Brake Pads, both part of Brakes & Brake Parts.
FAQs on brake reservoirs and covers
How do I check the brake fluid level on an ATV?
Keep the machine level with the bars straight so the fluid reads true, then look at the sight glass or the level mark on the reservoir. Wipe dirt away before you open the cover, and do not let it fall into the fluid.
Why does the brake fluid level drop over time?
As pads wear, a little more fluid fills the caliper, so the level falls slowly. A sudden or large drop points to a leak, so look at the lines, caliper and master cylinder. Do not top up repeatedly without finding the cause.
What brake fluid goes in the reservoir?
Use the type marked on the reservoir or given in the owner's manual, and do not mix types. Keep the fluid off paint, because it damages finishes, and use fluid from a sealed container. Check the cap, since some show the type on it.
Does a billet reservoir cover change how the brake works?
No. It replaces the stock cover and mainly changes the look. It must fit your master cylinder and seal properly, so check the fitment before ordering. A loose or ill-fitting cover can let dirt and moisture into the fluid, so make sure it seats fully.
