RA Super Seals 13B 2mm Apex Seal Set
RA Super Seals 13B 2mm Apex Seal Set
Rotary Aviation RA Super Seals are performance 2mm apex seals developed for Mazda 13B rotary engines operating in demanding street, track and high-boost applications.
KEY FEATURES
- Genuine Rotary Aviation / RA Super Seals
- 2mm apex seal design
- Complete 6-seal set for one 13B two-rotor engine
- Designed for compatible Mazda 13B engines
- Developed for high-performance applications
ENGINE BUILD INFORMATION
Apex seals are only one component of the rotary engine sealing system.
During an engine rebuild, RSG recommends inspecting and measuring:
- Rotor housings
- Rotor apex-seal grooves
- Apex seal springs
- Side seals
- Side seal springs
- Corner seals
- Corner seal springs
- Rotor bearings
- Stationary bearings
- Oil-control rings and O-rings
Correct engine clearances, component condition, assembly and engine tuning are critical to the reliability of any performance rotary engine.
No apex seal should be considered protection against incorrect tuning, excessive detonation or an improperly assembled engine.
RSG ROTARY ENGINE SUPPORT
Rotary Secret Garage supplies specialist rotary engine components for standard, performance and motorsport Mazda rotary builds.
If you are unsure whether the RA 2mm Super Seals are the correct choice for your 13B build, contact RSG with your engine specification, intended use and rotor configuration before ordering.
Worldwide shipping available.

