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Monroe Shocks & Struts Suspension Shock Absorber P/N:66402
$57.99
Keep every hardworking mile under control with the Monroe Magnum Front Suspension Shock Absorber 66402, a gas-charged unit built for class 3-6 commercial trucks and buses. It installs as a direct-fit replacement for the front position on the 1999-2020 Freightliner MT45 and 1999-2020 Freightliner MT55 — see the Buyer's Guide tab for full engine details. Designed for high-mileage and severe-use service, it helps reduce excessive vibration when you replace worn-out units.
- Gas-charged design: 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 the vehicle and paired with a larger 1-3/8-in. bore for more efficient damping control and a smooth ride 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.
- Strong and durable: Shouldered and bonded bushing with sleeve guards against bushing walkout, with arc welds up to 360° and a PTFE-coated bearing for longer service life on most applications.
Backed by Monroe's 90-day Risk Free Ride Offer and Limited Commercial Warranty.
Interchange: 1615473000 · 1615474000 · GBL65491940X · 654960 · 83157 · 9161053
This part cross-references / interchanges with the following part numbers:
1615473000, 1615474000, GBL65491940X, 654960, 83157, 9161053, 66402
Frequently Asked Questions
What vehicles does the Monroe 66402 fit?
It is a front-position replacement shock for the 1999-2020 Freightliner MT45 and 1999-2020 Freightliner MT55. Check the Buyer's Guide tab to confirm fitment for your truck.
Is this shock gas-charged?
Yes. The Monroe Magnum 66402 uses a nitrogen gas-charge that helps maintain tire-to-road contact by reducing aeration and shock fade for improved ride and handling.
Is the 66402 built for commercial use?
Yes. It is designed to handle the demands of high-mileage and severe-use class 3-6 trucks and buses.
What are signs my front shocks may need replacing?
Excessive vibration, bouncing, reduced ride control, and increased impact noise can indicate worn shocks. Have the suspension inspected to confirm the cause before replacing.
Should I replace shocks in pairs?
Replacing shocks as a matched axle pair is recommended for balanced, even ride control. This listing is for one shock absorber.
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Monroe Shocks & Struts Suspension Shock Absorber P/N:66402
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