Monroe
OESpectrum Passenger Car Shock Absorber

Monroe 5839 Shock Absorber - Rear

Brand Monroe 5839
Position Rear
S4
Compressed Bumper Stop No
Compressed Length 11.125
Dust Shield Yes
Dust Shield Material Metal
Extended Bumper Stop No
Extended Hydraulic Lockout No
Extended Length 18.125
Lower Mounting Code L1/CP3
Lower Mounting Type L1/CP3
Parts Pack P00576,P01134
Travel Length 7
Upper Mounting Type Stem Mount - 2.3/8" Stem Length X 3/8"-16 Thread Pitch
Product line OESpectrum Passenger Car Shock Absorber
Fits Lincoln and Ford · 4 vehicles

Factory drivability restored. Engineered to bring back original handling precision and control.

Noise, vibration, harshness filtered. Delivers a quieter, smoother ride feel.

Metal dust shield. Helps protect the shock absorber from road debris.

Cross-references KYB 343135, KYB KG5519 and TS3330332B for the same application. See all 4.

$42.66Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Shock Absorbers are typically replaced in pairs, axle by axle.
Order total $42.66
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Monroe OESpectrum Rear Shock for Thunderbird

The Monroe OESpectrum Passenger Car Shock Absorber, part number 5839, is built to restore factory-style ride control on the rear of select Ford Thunderbird models. It focuses on handling precision while reducing noise, vibration, and harshness for a more controlled driving feel.

Key Features

  • Monroe OESpectrum passenger car shock absorber for rear suspension use
  • Designed to restore original factory drivability and performance
  • Helps improve handling precision and road control
  • Filters noise, vibration, and harshness for a smoother ride
  • Dust shield included with metal dust shield material
  • Extended length: 18.125 in.; compressed length: 11.125 in.; travel length: 7 in.
  • Upper mount: stem mount with 2.3/8 in. stem length x 3/8 in.-16 thread pitch
  • Lower mount: L1/CP3

Product Details

Monroe OESpectrum shocks are part of Monroe’s passenger car shock absorber line, focused on OE-style ride quality and consistent damping response. Part number 5839 is a rear suspension shock absorber for 1973-1976 Ford Thunderbird applications and is engineered to support stock-component setups. This part cross-references KYB 343135 and KG5519 for the same application.

What This Shock Absorber Helps Address

  • Excessive rear-end bounce over bumps
  • Loose or unsettled handling at the rear of the vehicle
  • Road noise and vibration transmitted through worn shocks
  • Reduced ride control from aging suspension components
  • Factory ride quality loss on a Ford Thunderbird rear suspension

Installation Notes

Fits 1973-1976 Ford Thunderbird, rear. Verify upper stem mount and lower L1/CP3 mounting style before installation, and compare compressed and extended lengths to the original shock absorber. Use the included parts pack references only as needed for your specific application and inspect surrounding suspension components for wear before replacing the shock.

Quality Assurance

Monroe positions the OESpectrum line as an OE-style replacement solution for passenger cars, with a focus on ride control, handling response, and noise isolation. Part number 5839 is built for the listed Ford Thunderbird rear applications and is backed by Monroe’s product engineering standards.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1976FordThunderbirdRearEnhances performance for vehicles with stock components.; OESpectrum Passenger Car Shock Absorber
1975FordThunderbirdRearEnhances performance for vehicles with stock components.; OESpectrum Passenger Car Shock Absorber
1974FordThunderbirdRearEnhances performance for vehicles with stock components.; OESpectrum Passenger Car Shock Absorber
1973FordThunderbirdRearEnhances performance for vehicles with stock components.; OESpectrum Passenger Car Shock Absorber
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
KYB — 343135KYB — KG5519TS3330332BTS3334782B