The above listed price is the price of one piston.
In the case of Mazda’s genuine caliper only caliper O/H seal kit is available as service part.
However, in many cases if we disassemble the caliper we can see that the piston is very rusty.
Rust in the inner of the caliper
We recommend our original caliper piston for a good O/H.
You can check out our caliper O/H set that contains the genuine caliper piston / NB8 (later model) & NB6 (NR-A).
The caliper’s outer diameter can vary. Please check it before ordering.
Piston outer diameter NA8/NB early model 51mm
Piston outer diameter NB later model 54mm
We don’t keep rear pistons as single items.