KYB KG5404 Shock Absorber - Front

KYB Gas-a-Just Front Shock for Dodge Trucks

The KYB Gas-a-Just KG5404 is a front suspension shock absorber built as an OE monotube replacement for select Dodge and Plymouth trucks. It is designed for vehicles that work hard, tow, or run larger wheels and tires, while maintaining responsive control in everyday driving.

Gas-a-Just Product Line

KYB Gas-a-Just shocks use a high-pressure monotube design with separate gas and oil chambers. That layout supports quick response, fade-resistant operation, and firmer damping than many original equipment shocks, making it a practical upgrade for front suspension service on older Dodge truck platforms.

Key Features

• Part number KG5404
• Front suspension shock absorber for select Dodge B350, D250, D300, D350, D200, B300, and Plymouth PB350 applications
• Up to 25% more damping performance than original equipment shocks
• High-pressure monotube construction separates gas and oil for consistent response
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Higher gas pressure improves steering response
• Valving and components are tuned for Dodge truck applications
• Supports electronic safety systems by helping the suspension operate as engineered

Detailed Description

KYB KG5404 is engineered for front-end control on classic Dodge truck applications, including 1975-1994 Dodge B350, D250, D300, D350, D200, and B300 models, plus 1981-1983 Plymouth PB350. It is a direct-fit suspension shock absorber for vehicles with heavy-duty use cases such as towing, hauling, and larger tire and wheel setups. The monotube design uses an air-free hydraulic working area and a separate high-pressure nitrogen chamber to deliver quick reaction and stable damping under load. This makes KG5404 a strong OE-style replacement choice when restoring front suspension performance on Dodge trucks.

This part cross-references Monroe Shocks & Struts 34868 for the same application.

What It Helps Address

• Excessive front-end bounce after bumps or dips
• Loose or delayed steering response
• Reduced control during towing or hauling
• Shock fade from repeated suspension movement
• Seal wear that can contribute to fluid leakage

Installation Notes and Tips

Compatible with front-position applications only. Confirm the vehicle’s axle and package notes before ordering, since listed fitments include configurations such as 4000 lb. front axle and heavy-duty package variants. On some Dodge D250, D300, and D350 applications, the manufacturer notes that the suspension strut and coil spring assembly should be replaced according to the vehicle maker’s instructions. Verify compressed length, extended length, stroke, and mount types against the original shock before installation.

Quality Assurance

KYB designs Gas-a-Just shocks as OE monotube replacements to restore original suspension capability with application-specific valving for Dodge trucks. The KG5404 uses a high-pressure monotube layout and a chrome piston rod to support consistent operation and reduced seal wear in demanding front suspension service.