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Monroe 5551 OESpectrum Rear Suspension Shock Absorber

(GMC G2500 1988-90, K1500 1988-91, C1500 1988-91, K2500 1988-91, C3500 1988-91, K3500 1988-91, C2500 1988-91, G3500 1988-90, G1500 1988-90 + 14 more models)

Manufacturer

Part Number

5551
Sale Price

$42.16

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Monroe OESpectrum 5551 is a rear suspension shock absorber engineered to restore your vehicle's original factory ride quality and handling performance. Designed specifically for passenger cars, this twin-tube low-pressure gas unit delivers an exceptional level of precision handling and control while effectively filtering out noise, vibration, and harshness (NVH) for a smooth, confident drive.

Key Features:

  • Consistent Ride: OE all-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown, ensuring reliable performance year-round
  • Improved Handling: Nitrogen gas charge maintains consistent tire-to-road contact, reducing aeration and shock fade for improved ride quality
  • PTFE-Banded Piston: Provides consistent sealing between the piston and pressure tube for better damping control and increased durability
  • Application-Specific Valving: Full displaced valving tuned specifically to each vehicle application, with a larger bore for more efficient damping control and a smooth ride across varying road conditions
  • Groove Tube Technology: Precision tapered grooves allow fluid to flow freely around the piston, creating a smoother ride under a wide range of driving conditions
  • Twin-Tube Low-Pressure Gas Design: Mirrors the construction of most original equipment units for a true OE-equivalent replacement
  • Limited Lifetime Warranty: Backed against manufacturer defects for long-term peace of mind

The Monroe OESpectrum line — formerly known as Sensatrac — is a trusted choice for everyday drivers seeking a factory-matched replacement shock absorber. Whether you're dealing with worn-out shocks causing excessive bounce, body roll, brake dive, or acceleration squat, the Monroe 5551 restores the ride dynamics your vehicle was designed to deliver.

Products specifications

Fits

GMC G2500 1988-90, K1500 1988-91, C1500 1988-91, K2500 1988-91, C3500 1988-91, K3500 1988-91, C2500 1988-91, G3500 1988-90, G1500 1988-90, V2500 Suburban 1988; Chevrolet C1500 1988-91, K1500 1988-91, K2500 1988-91, C3500 1988-91 + 9 more models

Upper Mounting Code

S1

Compressed Length

17.9300

Lower Mounting Code

LS45

Reserve Tube Diameter

1.7500

Dust Shield Included

No

Dust Shield

No

Extended Length

25.8300

Extended Bumper Stop

Yes

Travel Length

7.5600

Upper Mounting Description

Stem Mount - Stem Length X M10 Thread Pitch

Extended Hydraulic Lockout

No

Lower Mounting Description

Loop Bushing & Sleeve Mount - 14MM Sleeve ID X 2.7/16" Sleeve OAL

Compressed Bumper Stop

No

Body Diameter

1.7500

Parts Pack

P00906

Reserve Tube Diameter

1.75

Travel Length

7.56

Extended Length

25.83

Compressed Length

17.93

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