Overview
The Mountain Off Road Enterprises Torsion Rubber Style BombProof Motor Mount, part JM600, is a black rubber motor mount for the 258 4.0L 6 cylinder engine. It is built for the stresses of deep gearing, big tires, lockers and heavy torque on off-road trails.
Key features
- Torsion rubber style mount in the BombProof line
- Designed for the stresses of rock crawling and heavy torque
- Black rubber bushing
- Made for the 258 4.0L 6 cylinder engine
Off-road loads on mounts
Off-road loads on a motor mount come from throttle inputs at low speed, wheel hop and the weight of the drivetrain shifting over obstacles. Deep gearing keeps the engine working hard at low speed, which puts steady torque through the mounts. Big tires add rotating mass and can make the drivetrain bounce, so the mount takes more shock than it would on pavement.
Rubber cushions are often chosen for their flexibility and quiet ride, but they can tear or split under sustained load and heat. Inspect the bushing after each trip that includes hard climbs, looking for splits, bulging or oil contamination. Check the bolts and bracket welds too, because a loose mount can wear the bushing faster than age alone.
- Look for splits or bulging in the rubber
- Check bolts after rough trail days
- Inspect bracket welds for cracks
Specifications
| Brand | Mountain Off Road Enterprises |
|---|---|
| Part number | JM600 |
| UPC | 815572022127 |
| Color | Black |
| Bushing material | Rubber |
| Engine | 258 4.0L 6 cylinder |
Vehicle fitment
Confirm fit for your vehicle’s year, model and trim before ordering. The mount is designed for stock Jeep motor mount locations, so match it to your Jeep’s engine and model.
Confirm your vehicle’s year, model and trim before ordering.
What’s included
Look over the parts you receive against your installation plan before starting.









