KYB Suspension Strut Cartridge P/N:364003
Firm up a worn-out front corner with the KYB strut cartridge 363003, a nitrogen gas-charged Excel-G insert that drops into the front strut housing of the 1979-1980 Mazda RX-7. Built on KYB's OE assembly lines as an OEA (Original Equipment for the Aftermarket) unit, this gas cartridge is calibrated to bring damping back to the vehicle's designed performance rather than change it.
Upper mount type is 14x1.50, with a stroke length of 14.84 in, compressed length of 15.67 in, and extended length of 22.72 in. If worn front dampers are behind your excessive bounce, nose-dive, or loss of ride control, this cartridge helps restore designed handling. Country of origin: Japan. Sold individually — the listed application uses 2, and replacing both front cartridges together is recommended.
Interchange: G44806
This part cross-references / interchanges with the following part numbers:
Does this cartridge fit my 1979-1980 Mazda RX-7?
Yes, cartridge 363003 is listed for the 1979-1980 Mazda RX-7, all engines. Check the "Vehicles it fits" section to confirm the application for your vehicle.
Is this suspension strut cartridge a complete strut assembly?
It is a gas cartridge insert designed for the front strut housing. A dust cover and bump stop are not included.
How many do I need?
The listed application uses 2. It is sold individually, and replacing both front cartridges together is recommended for balanced handling.
What kind of damper design is this?
It is a nitrogen gas-charged, twin-tube Excel-G design with hand-assembled, vehicle-specific damping valves and a triple-lip fluid seal.
What are signs my front cartridge may need replacing?
Excessive bounce, nose-dive under braking, reduced ride control, or oil seepage can indicate worn dampers. Diagnose the cause before replacing.
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