This is a solid Delrin (Acetal) motor mount for the Toyota 1MZ-FE engine.
The stock mount shown below, like that of many vehicles, is hollow and barely able to handle stock levels of power, and is prone to failure when the supporting mods increase the power numbers. Many people stiffen the mount by filling the mount with Polyurethane. While filling it does help, many have experienced the mount still failing after a time. With this solid mount, not only with the mount not fail, but the shifts will be much crisper. There may be a small amount of added vibration on a car, but when pressing the gas pedal, the car is much more responsive, as the motor does not lose as much torque into the mounts.
The mount is installed just as the stock mount. Installation takes about 90 minutes, with floor jacks, a socket set, and a press to remove the old mount. The mount does not include the mounting bracket, only the insert replacement.
Delrin (Acetal) motor and transmission mounts are each machined from a solid block, and have either Stainless Steel or Aluminum bushings fit into the mounts to act as a point of contact for the connecting bolts. Delrin is an extremely strong and stiff plastic. It is commonly used in place of metal in applications where metal can not be used (magnetic, corrosion, or conducting / insulating reasons). These are much stiffer than polyurethane mounts, and it will not give or wear out. These mounts should never need to be replaced, unlike the stock units which are usually considered a wear item. These will give the same effect as solid metal mounts, without the intense vibration which metal transmits.
These mounts stop the jumping or twisting of the motor under the hood. This movement is caused by the rotating mass of the crankshaft and transmission components. With stock mounts, the engine will twist itself in the engine bay when the throttle is opened, or during high-speed shifts. Over time, this force will destroy the stock rubber mounts. When this happens, the rubber may split or rip, allowing the engine to potentially move inches back and forth. This can destroy CV joints, other mounts, and create even worse wheel-hop.
With these mounts, shifts will be much crisper. There should not be any noticeable added vibration on a car with any suspension modifications, and many times the mounts will smooth the vehicle vibrations by stopping excess movement caused from soft factory mounts. While pressing the gas pedal, a vehicle is much more responsive; as the motor does not lose as much torque twisting into the mounts.
At a price usually less than that of inferior stock mounts, these are not only a great performance item, but a bargain for each application.
This is a replacement for 12371-0A030 and other versions of similar mounts.
Standard shipping charges will apply to the rest of the world.