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Monroe Shocks & Struts Suspension Shock Absorber P/N:66605
$70.99
Restore damping control and a stable ride on hardworking commercial trucks and buses with the Monroe Magnum Suspension Shock Absorber 66605. This gas-charged front and rear shock installs as a direct-fit replacement for the listed applications — including the 1987-1996 Chevrolet W6500 Tiltmaster, 2003-2018 IC Corporation RE School Bus, 1990-2004 International 3800, and 1988-1996 Isuzu FTR — see the Buyer's Guide tab for the full list. Designed for the demands of high-mileage, severe-use class 3-6 vehicles, it replaces worn-out units to help reduce excessive vibration.
- Nitrogen gas-charge: helps maintain tire-to-road contact by reducing aeration and shock fade for improved ride and handling.
- 10-Stage valving: tuned to each vehicle to adjust to road extremes, with a larger 1-3/8-in. bore for more efficient damping control on most applications.
- All-weather fluid: special additives assist with extreme temperatures and help reduce oil breakdown, while a 2-in. or 2-1/4-in. reserve tube holds more fluid when required.
- Strong and durable: shouldered and bonded bushing with sleeve help protect from bushing walkout, with arc welds up to 360° for durability.
A bearing with PTFE coating reduces friction between the rod and rod guide, and on most applications a nitrocarburized piston rod supports longer service life. A robust hydraulic lock-out (on most applications) helps prevent over-extension of air bags and top-out of the piston. Backed by Monroe's 90-day Risk Free Ride Offer and Limited Commercial Warranty.
Interchange: A83613 · HD12140526 · 540395C92 · 44183613 · 727761 · 83613 · SA66605 · 1516301670 · 345601 · 881646 · 600164 · 600164MT · M83613 · 660164 · 6605 · 2504419C1 · AMS600164 · 57306605 · 315540 · 61300112 · 3919567
This part cross-references / interchanges with the following part numbers:
A83613, HD12140526, 540395C92, 44183613, 727761, 83613, SA66605, 1516301670, 345601, 881646, 600164, 600164MT, M83613, 660164, 6605, 66605, 2504419C1, AMS600164, 57306605, 315540, 61300112, 3919567
Frequently Asked Questions
What is the Monroe Magnum 66605?
It's a gas-charged Monroe Magnum suspension shock absorber designed for high-mileage, severe-use class 3-6 commercial trucks and buses, replacing worn units to help reduce excessive vibration and restore damping control.
Is this a front or rear shock?
It is cataloged for both front and rear positions on the listed applications. Check the Buyer's Guide tab to confirm the correct position for your specific vehicle.
What vehicles does the 66605 fit?
It's a direct-fit replacement for applications such as the 1987-1996 Chevrolet W6500 Tiltmaster, 2003-2018 IC Corporation RE School Bus, 1990-2004 International 3800, and 1988-1996 Isuzu FTR. See the Buyer's Guide tab for the full list.
What are signs my shock absorber may need replacing?
Common signs include excessive vibration, bouncing, and reduced ride control. Diagnose the cause first; if worn-out shocks are the issue, this unit replaces them.
How does the gas-charge help ride quality?
The nitrogen gas-charge helps maintain tire-to-road contact by reducing aeration and shock fade, which supports improved ride and handling on most applications.
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Monroe Shocks & Struts Suspension Shock Absorber P/N:66605
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