KYB 363003 Suspension Strut Cartridge - Front

KYB Excel-G Front Strut Cartridge

The KYB Excel-G 363003 is a suspension strut cartridge built to restore original ride control, stability, and steering response. It is a direct-fit OE-style replacement for the front of 1979-1980 Mazda RX-7 models without electronically-adjustable suspension.

As part of the KYB Excel-G line, this cartridge is calibrated to return the vehicle’s designed damping characteristics rather than change them. It is made on KYB OE assembly lines using OE-quality components, which is why professional technicians often choose the KYB Excel-G 363003 for front suspension service on the Mazda RX-7.

Key Features

• KYB recommended OEM replacement gas cartridge
• Restores designed control and handling
• Nitrogen gas-charged, twin-tube construction
• Triple-lip fluid seal helps reduce oil and gas leakage
• Vehicle-specific, hand-assembled damping valves manage tire contact, steering response, and body movement
• Strong strut body and bracket design helps minimize flex and maintain alignment
• Supports proper operation of electronic safety systems by keeping suspension behavior consistent with factory intent
• Compressed length: 15.67 in; extended length: 22.72 in; stroke length: 14.84 in
• Upper mount type: 14X1.50

Detailed Description

KYB Excel-G is an Original Equipment for the Aftermarket (OEA) line focused on restoring factory ride characteristics. This suspension strut cartridge is engineered for the front suspension of the 1979-1980 Mazda RX-7 and is a practical replacement when the original strut cartridge has lost damping performance. Part number 363003 is built to match the vehicle’s intended control, lane-change response, and braking stability.

This part cross-references Gabriel G44806 for the same application.

What It Helps Address

• Excessive bouncing after bumps
• Loose or delayed steering response
• Reduced body control during braking and cornering
• Uneven tire contact caused by worn damping
• Suspension noise or handling changes associated with worn front strut cartridges

Installation Notes and Tips

Fits 1979-1980 Mazda RX-7, front, recommended OEM replacement; exc. electronically-adjustable suspension. Verify strut dimensions, upper mount thread size, and suspension configuration before installation. Replace worn related suspension components as needed and perform a wheel alignment after service.

Quality Assurance

KYB supplies shocks and struts to new vehicle manufacturers and builds Excel-G on the same OE assembly lines using OE-quality components. The 363003 is designed as an OE-style replacement for consistent front suspension performance on the Mazda RX-7.