where to find heavy duty O-rings for brakes calipers.

[Silver86]

no... not the O-ring seals that go around the piston.

my calipers are sandwiched halves. in between the halves are O-rings. and one of the calipers have a possible leak.

im looking for a place locally where i could pick them up if thats what i need. tomorrow im heading out there to work on the car and will know if the caliper is actually leaking.

[Reverend Cooper]

what vehicle

[SSDude]

NAPA rebuild kit should have the O-rings and seals

[Silver86]

what vehicle

the one in my sig... 86' rx7 w/4 piston calipers...

according from my source, on reman'd calipers the inner O-rings between the halves are usually not replaced unless the needs to be completely torn down (frozen piston, cylinder hone). so i doubt that the napa rebuild kit includes the O-ring.

[SSDude]

Call and ask if they have an assortment of EDPM rubber o-rings. That type of rubber is what's used on most brake sealing materials as it resists breaking down with the fluid.
If not i have bought EDPM o-rings from McMaster Carr. Usually a bag of 50 can be had for about 5-8 bucks.

If you can't find them in town
An example http://www.mcmaster.com/#9561k41/=1h3340

O-Rings, Cord Stock, and Accessories
This product matches all of your selections.

Part Number: 9561K41
$3.57 per Pack of 25
AS568A Dash Number
110
Type
O-Ring
O-Ring Type
Standard
Cross Section Shape
Round
Width
3/32"
Actual Width
.103"
Inside Diameter
3/8"
Actual Inside Diameter
.362"
Outside Diameter
9/16"
Actual Outside Diameter
.568"
Material
EPDM (Ethylene Propylene)
Durometer
Hard
Durometer Shore
Shore A: 70
Temperature Range
-65° to +300°F
Color
Black
Specifications Met
American National Standards Institute (ANSI), Food and Drug Administration (FDA), National Sanitation Foundation (NSF)
ANSI/NSF Specification
ANSI/NSF Standard 61
FDA Specification
FDA Compliant