Monroe 5577 Suspension Shock Absorber - Rear

Monroe OESpectrum Rear Shock Absorber

The Monroe OESpectrum Passenger Car Shock Absorber, part number 5577, is built for rear suspension service on select Hyundai and Kia vehicles. It is engineered to restore factory-style drivability while reducing noise, vibration, and harshness for a more controlled ride.

Designed for applications such as the Hyundai Elantra, Hyundai Ioniq, Hyundai Veloster, Kia Forte, and Kia Niro, Monroe 5577 uses application-specific tuning to support handling precision without changing the vehicle’s original suspension character.

Key Features

• Rear shock absorber for passenger car suspension service
• OESpectrum line tuned for application-specific ride control
• Filters noise, vibration, and harshness for improved comfort
• Gas charged design for consistent damping response
• Premium grade construction
• Body diameter: 1.52 in. (38.6 mm)
• Extended length: 22.35 in. (578.1 mm)
• Compressed length: 13.98 in. (355.3 mm)
• Travel length: 8.59 in. (218.3 mm)
• Upper mount: stem mount with 1 1/4 in. stem length and M10 thread pitch
• Lower mount: loop bushing and sleeve mount with 12 mm sleeve ID
• Mounting hardware included

Product Details

Monroe’s OESpectrum Passenger Car Shock Absorber line is focused on restoring original factory drivability with the right technology for each application. Part number 5577 uses a passive, gas-charged design and OE-style mounting points to support stable rear suspension performance on the Hyundai Elantra rear shock absorber, Hyundai Ioniq rear shock absorber, Hyundai Veloster rear shock absorber, Kia Forte rear shock absorber, and Kia Niro rear shock absorber applications.

This part cross-references KYB 3440158 and Atlantic Automotive Engineering 5577 for the same application.

Common Problems It Can Address

• Excessive rear-end bounce over bumps
• Reduced handling control during lane changes and cornering
• Noise and vibration from worn rear shocks
• Harsh or unsettled ride quality
• Uneven rear suspension response from aging dampers

Installation Notes

Verify the upper stem mount and lower loop bushing and sleeve mount before installation. Confirm compressed length, extended length, and travel length against the original shock absorber to ensure proper rear fitment on the vehicle.

• Fits 2020-2024 Kia Forte, rear
• Fits 2017-2022 Hyundai Ioniq, rear
• Fits 2017-2022 Kia Niro, rear
• Fits 2019-2021 Hyundai Veloster, rear
• Fits 2017-2020 Hyundai Elantra, rear

Quality Assurance

Monroe backs the OESpectrum line with a Limited Lifetime Warranty and the Feel the Difference Guarantee. Part number 5577 is built to support OE-style ride quality and consistent rear suspension control for the listed Hyundai and Kia applications.