GM 3 Bolt Clam Shell Inserts Energy Suspension 3.1121G

GM 3 Bolt Clam Shell Inserts Energy Suspension 3.1121G
[3.1121G]

$86.99


 

Sold as a Pair

Replace worn factory motor mount inserts with Energy Suspension Polyurethane Motor Mount Inserts. These high-performance inserts reduce unwanted engine movement while improving strength, durability, and engine stability.

Made from HYPER-FLEX® performance polyurethane, these inserts are built to last longer than factory rubber. They help reduce wheel hop, improve traction, and protect other drivetrain components from damage caused by excessive engine movement.

Perfect for street vehicles, muscle cars, trucks, hot rods, and race cars.

Features

  • Restores worn or damaged factory motor mounts
  • Reduces engine movement under hard acceleration
  • Helps reduce wheel hop and improve traction
  • Protects drivetrain components from excess engine movement
  • Stronger and longer lasting than factory rubber inserts
  • Absorbs engine vibration for comfortable street driving
  • Durable enough for high-performance and racing applications
  • Made from HYPER-FLEX® performance polyurethane
  • Resistant to oil, coolant, grease, and other automotive fluids

Installation

This kit includes the polyurethane inserts only.

The original outer metal mount shells must be reused.

To install:

  • Remove the factory rubber inserts.
  • Drill out the factory welds or rivets to separate the metal shell.
  • Install the new polyurethane inserts into the original shell.
  • Reassemble using the factory 7/16-inch through bolt.

Fitment

Designed for 3-bolt style GM motor mounts.

Replaces the inserts used in the following GM part numbers:

  • 15731260, 22145334, 15529451, 15529452, 15592505

Also replaces aftermarket part number 2621.

Why Choose Polyurethane?

Factory rubber motor mounts wear out over time, allowing the engine to move more than it should. Energy Suspension polyurethane inserts provide better support, improved durability, and longer service life while still helping absorb vibration for everyday driving.

Install Instructions


WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.p65warnings.ca.gov

ALUMINUM: Most of the aluminum alloys used today contain some level of lead, usually less than .1%. Lead is known to the state of California to cause cancer and reproductive harm. Most aluminum alloys are physiologically inert in their solid form, and the lead is contained within, however user-generated dust and/or fumes may pose a hazard if inhaled or ingested. Heating beyond a certain temperature may also provide avenues for exposure.

STEEL (steel bolts): Steel is an iron alloy with several metals including Nickel and Chromium. Both Nickel and Chromium are known to the State of California to cause cancer and reproductive harm, respectfully. This warning applies to stainless steels as well.