Smooth out worn, bouncy ride control with the Monroe OESpectrum Rear Suspension Shock Absorber 37284 — a direct-fit rear shock absorber for the 2004-2020 Toyota Sienna. Monroe's OESpectrum shocks are designed to help restore a vehicle's original factory drivability and handling feel while filtering out impact-related noise, vibration and harshness.
- Exceptional handling: full displaced valving is tuned to the vehicle and adjusts to road extremes, while a larger bore provides more efficient damping for a smooth, consistent ride.
- Control and durability: a PTFE-banded piston keeps sealing consistent between the piston and pressure tube for better control and added durability.
- Reduced NVH: the Twin Technology Active Control System delivers control under most driving conditions while isolating impact-related noise, vibration and harshness.
- Improved ride: a nitrogen gas charge helps maintain tire-to-road contact by reducing aeration and shock fade, and OE all-weather fluid contains additives that help reduce oil breakdown in extreme temperatures.
A self-lubricating fluid seal retains gas and reduces friction against the piston rod to help limit premature wear. If a worn rear shock is the cause of poor ride control or excessive bouncing, this replaces it. Sold individually — replacing both rear shocks together as a matched pair is recommended for balanced ride control. Backed by Monroe's Limited Lifetime Warranty and Feel the Difference Guarantee.
Interchange: TS3334912B · 341529 · G51805 · 344308 · 344480 · TY118 · 210295 · NS37284 · 373162 · 32130259 · 7837284 · 4853108010 · 4853109050 · 4853109850 · 4853109870 · 4853109A80 · 4853109C10 · 4853109C30 · 48531A9050 · 254040
This part cross-references / interchanges with the following part numbers:
TS3334912B, 341529, G51805, 344308, 344480, TY118, 210295, 37284, NS37284, 373162, 32130259, 7837284, 4853108010, 4853109050, 4853109850, 4853109870, 4853109A80, 4853109C10, 4853109C30, 48531A9050, 254040
Frequently Asked Questions
Does this shock absorber fit the 2004-2020 Toyota Sienna?
Yes. The Monroe OESpectrum 37284 is a rear shock absorber cataloged for the 2004-2020 Toyota Sienna. See the "Vehicles it fits" section to confirm your exact vehicle and engine.
Is this a front or rear shock absorber?
It is a rear suspension shock absorber.
How many do I need?
This listing is for one shock. Replacing both rear shocks together as a matched pair is recommended for even, balanced ride control, though it is not strictly required.
What does the nitrogen gas charge do?
The nitrogen gas charge helps maintain tire-to-road contact by reducing aeration and shock fade, which supports improved ride and handling.
What are signs a rear shock may need replacing?
Excessive bouncing, poor ride control, nose-dive when braking, or fluid leaking from the shock body can be signs. Diagnose the cause before replacing.
