Dorman - OE Solutions Transmission Crossmember 999-666
Dorman - OE Solutions Transmission Crossmember 999-666

Transmission Crossmember for 1999-2004 Jeep Grand Cherokee - Dorman 999-666

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$283.99
MPN: 999-666
UPC: 194883473591
Item Package Quantity: 1
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Dorman - OE Solutions Transmission Crossmember P/N:999-666
Dorman - OE Solutions Transmission Crossmember P/N:999-666
$283.99

If rust has weakened the support under your gearbox, this Dorman OE Solutions 1999-2004 Jeep Grand Cherokee transmission crossmember, part number 999-666, is designed to hold the transmission securely in place again. It is a direct-fit replacement for the 1999-2004 Jeep Grand Cherokee and installs in place of the original frame member, so the existing frame stays on the vehicle.

A corroded transmission support crossmember can let the driveline move more than it should. If a rusted crossmember is the cause of that movement, this part replaces it and is intended to secure the transmission again without replacing the frame.

  • Direct replacement: installs where the original frame member was and secures the transmission in its place.
  • No welding required: bolts into position, with no cutting or welding needed.
  • Quality materials: stamped steel construction with an epoxy-coat finish for durability.
  • Vehicle tested: put through extensive on-vehicle testing to check fit and installation.

Engine details for each application are listed in the Buyer's Guide tab.

Interchange: 52058940 · 52058940AB · 52058940AD

This part cross-references / interchanges with the following part numbers:

52058940, 52058940AB, 52058940AD

Frequently Asked Questions

Does this transmission crossmember fit my 1999-2004 Jeep Grand Cherokee?

Yes. It is listed as a direct-fit replacement for the 1999-2004 Jeep Grand Cherokee. Engine details for each application are in the Buyer's Guide tab.

What does a transmission crossmember do?

It is a frame member that supports the transmission and secures it in place under the vehicle, which limits how much the transmission and driveline can move.

Do I need to cut or weld to install it?

No. This crossmember bolts in place and needs no cutting or welding. Consult the vehicle service information for the correct fasteners and torque values.

What is this crossmember made of?

It is made of stamped steel with an epoxy-coat finish for durability.

What are signs a transmission crossmember may need replacing?

Signs include heavy rust or corrosion on the crossmember and excess movement of the transmission or driveline. Have the cause diagnosed before replacing parts.

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