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Energy Suspension 8.4120R red Hyper-Flex polyurethane body mount set for 2010-2024 Toyota 4Runner
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Energy Suspension 10-24 Toyota 4Runner Body Mount Set - Red

ENG8.4120R
703639138358
Bushing Kits
2 Units In Stock - Ships Next Business Day
$ 644.13 $ 417.82
$ 417.82

Stop Body Roll and Chassis Shift on Your 4Runner

The Energy Suspension ENG8.4120R body mount bushing set replaces the factory rubber body mounts on the 2010-2024 Toyota 4Runner with Hyper-Flex polyurethane bushings in red. Over time, the OEM rubber mounts compress, crack, and take on a set, allowing the body to shift against the frame during cornering, braking, and off-road use. Part No. 8.4120R restores a firm mount interface that transfers steering input more directly and reduces body movement that can make the chassis feel vague. Polyurethane has a significantly higher durometer rating than factory rubber, so these mounts resist petroleum contamination, heat cycling, and ultraviolet exposure better than the parts they replace. The included zinc-plated steel inserts maintain proper compressive load on the bushing stack and prevent metal-to-metal contact between the body and frame. Energy Suspension designs these to be a direct replacement that does not require drilling, cutting, or frame modification on the 2010-2024 4Runner application.

Key Features

  • Hyper-Flex polyurethane construction resists oil, heat, and UV better than OEM rubber
  • Red color for easy visual inspection and positive identification during maintenance
  • Zinc-plated steel inserts included to prevent metal-to-metal body-to-frame contact
  • Higher durometer rating than factory rubber reduces body movement on the frame
  • Direct replacement requiring no drilling, cutting, or frame modification on 2010-2024 4Runner
  • Improves steering response feel by reducing body shift during cornering
  • Maintains factory mount geometry and load path through the chassis
  • California-compliant with Prop 65 warning

Fitment

Year Range Make Model
2010-2024 Toyota 4Runner

Specifications

Detail Value
Part Number (MPN) ENG8.4120R
Manufacturer Part No. 8.4120R
Brand Energy Suspension
Material Hyper-Flex Polyurethane
Color Red
Hardware Included Zinc-plated steel inserts
UPC Not published by manufacturer

What's Included

  • Complete ENG8.4120R polyurethane body mount bushing set
  • Zinc-plated steel inserts
  • Energy Suspension installation instructions

About Energy Suspension

Energy Suspension has been producing polyurethane suspension components in the United States since 1983. The company's Hyper-Flex product line covers body mounts, control arm bushings, sway bar bushings, and related chassis components for a wide range of domestic and import vehicles, supplying both the enthusiast aftermarket and professional racing teams.

Related Parts

FAQ

What is the ENG8.4120R?

The ENG8.4120R is an Energy Suspension Hyper-Flex polyurethane body mount bushing set (Part No. 8.4120R) designed to replace the factory rubber body mounts on the 2010-2024 Toyota 4Runner, available in red.

Why replace factory rubber body mounts with polyurethane?

Factory rubber mounts soften and take a permanent set over time, allowing the body to shift against the frame. ENG8.4120R polyurethane mounts restore a firmer connection that reduces body movement, improves steering feel, and lasts longer under off-road and daily driving conditions.

Will polyurethane body mounts cause more noise or vibration than the OEM rubber mounts?

Some increase in NVH (noise, vibration, and harshness) transmission is possible with polyurethane compared to OEM rubber, as the firmer material transfers more road and driveline vibration into the body. Proper greasing of the bushings during installation minimizes squeaking and reduces this effect.

What grease should I use when installing these body mounts?

Use Energy Suspension's supplied grease or an equivalent polyurethane-compatible synthetic grease. Do not use petroleum-based lubricants, as they can degrade polyurethane and cause premature bushing failure.

Does this kit cover all body mount positions on the 2010-2024 4Runner?

Verify the specific positions covered against Energy Suspension's fitment documentation for Part No. 8.4120R before ordering, as some body mount kits cover specific positions while others are complete sets. Contact Energy Suspension if clarification is needed.

Is this body mount set compatible with lifted 4Runners?

ENG8.4120R is designed for stock-height body-to-frame geometry. Vehicles with body lifts may require different bushing stack heights. Consult your lift kit manufacturer before ordering for a lifted application.

How difficult is installation on the 4Runner?

Body mount replacement requires safely lifting the body off the frame to access the mount pockets, which typically requires a floor jack, safety stands, and some patience. A professional installation is recommended if you are not experienced with chassis work on body-on-frame vehicles.

Are these body mounts covered by a warranty?

Energy Suspension offers a limited warranty on Hyper-Flex products against defects in materials and workmanship. Contact Energy Suspension directly for warranty terms and claims procedures.

Install Instructions

  1. Park the 4Runner on a flat surface and place wheel chocks behind the rear tires.
  2. Raise the front or rear of the body as needed using a floor jack and position safety stands under the frame.
  3. Remove the body mount bolt from the top and the nut from the underside of each mount position being replaced.
  4. Carefully raise the body slightly to create clearance to slide out the old rubber bushings and metal sleeves.
  5. Clean the body mount pockets in the frame thoroughly, removing rust, debris, and old rubber residue.
  6. Apply a generous coat of polyurethane-compatible grease to all contact surfaces of the new ENG8.4120R bushings.
  7. Install the new polyurethane bushings and included steel inserts into the mount pocket in the correct orientation.
  8. Lower the body onto the new mounts and install the body mount bolts and nuts finger-tight.
  9. Torque all body mount fasteners to Toyota factory specification.
  10. Repeat the process for all remaining mount positions, then inspect completed mounts for proper seating.

Prop 65 Warning: This product can expose you to chemicals including Bisphenol A (BPA), which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

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