Monroe Shocks & Struts Suspension Shock Absorber 66122

Monroe Shocks & Struts Suspension Shock Absorber P/N:66122

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$62.99

MPN: 66122

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Monroe Shocks & Struts Suspension Shock Absorber P/N:66122

$62.99

Description

Smooth out the ride in your heavy-duty truck cab with the Monroe Magnum Cab Suspension Shock Absorber 66122. This gas-charged cab shock is designed for cab suspensions and isolates the cab from the frame for a smoother, more comfortable ride, using velocity-sensitive valving to help deliver driver comfort (most applications). It installs as a direct-fit replacement for the 2012-2023 Freightliner 108SD and 114SD, 2013-2023 Freightliner 122SD, 2009-2024 Freightliner Cascadia, 2001-2011 Freightliner Century Class, 2001-2020 Freightliner Columbia and Coronado, 2003-2016 Freightliner M2 112, and 2021-2024 Western Star 49X.

Tuned control: 10-stage valving tuned to each vehicle adjusts to road extremes, while a larger 1-3/8-in. bore provides more efficient, consistent control (most applications).
Consistent ride: All-weather fluid with special additives helps with extreme temperatures and reduces oil breakdown, and a larger 2-in. reserve tube holds more fluid (when required).
Strong and durable: Shouldered bushing and bonded bushing with sleeve protect from bushing walkout, with arc welds up to 360° for durability.
Longer service life: A PTFE-coated bearing reduces friction between the rod and rod guide, combined with a nitrocarburized piston rod (most applications).

Its nitrogen gas-charge helps maintain tire-to-road contact by reducing aeration and shock fade, and it isolates impact-related noise, vibration and harshness under most driving conditions. Backed by Monroe's 90-day Risk Free Ride Offer and Limited Commercial Warranty.

Interchange: ABPN32G900012 · A83038 · HD12140538 · 44183038 · F347344 · 98030001 · 1832999001 · 1841762000 · 1841762002 · 1860764000 · 1860765002 · 1869674000 · 654990 · 659178 · 83038 · 83040 · SA66122 · M83038 · 315616 · 814903003528 · 814903015188 · 1873207000

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

This part cross-references / interchanges with the following part numbers:

ABPN32G900012, A83038, HD12140538, 44183038, F347344, 98030001, 1832999001, 1841762000, 1841762002, 1860764000, 1860765002, 1869674000, 654990, 659178, 83038, 83040, SA66122, M83038, 66122, 315616, 814903003528, 814903015188, 1873207000

Frequently Asked Questions

What is the Monroe 66122?

It is the Monroe Magnum Cab suspension shock absorber (MPN 66122), a gas-charged shock designed to isolate a heavy-duty truck cab from the frame for a smoother ride.

Which vehicles does the 66122 fit?

It fits many Freightliner models including the 108SD, 114SD, 122SD, Cascadia, Century Class, Columbia, Coronado and M2 112, plus the Western Star 49X. See the Buyer's Guide tab for the full year coverage.

Is this shock gas-charged?

Yes. It uses a nitrogen gas-charge that helps maintain tire-to-road contact by reducing aeration and shock fade for improved ride and handling.

Should I replace cab shocks in a set?

This listing is for one shock. For balanced, even cab ride quality it is best practice to replace the shocks on a cab suspension together as a matched set.

What are signs this cab shock may need replacing?

Common signs include excessive cab bounce or shake, a harsher ride, or visible fluid leakage. Diagnose the cause before replacing, as other components can produce similar symptoms.