Dorman 999-666 Transmission Crossmember 99-04 Jeep Grand Cherokee 52058940AB
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$223.98
Select your vehicle at the top of the page to check fitment.
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
Transmission shifting on its mountings? A rusted transmission support crossmember can allow excess movement in the driveline. Replacing the crossmember while retaining the existing frame restores performance and keeps the vehicle on the road.
- Direct replacement - this transmission crossmember installs in place of the original frame member to secure the transmission in its place
- No welding required - this transmission crossmember bolts in place and requires no cutting or welding
- Quality materials - stamped steel construction with epoxy-coat finish for durability
- Vehicle tested - has undergone extensive on-vehicle testing to ensure trouble-free fit and installation
Vehicle Fitment
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1999-2004 | Jeep | Grand Cherokee |
Please confirm the part number and your vehicle's year, make, model and engine before ordering. Questions? Message us with your VIN and we'll check fitment for you.
Specifications
| Brand | Dorman |
|---|---|
| Part Number | 999-666 |
| UPC | 194883473591 |
| Material | Steel |
| Length | 41.5 in. |
| Width | 6.25 in. |
| Mounting Hardware Included | No |
| Height | 3.8 in. |
| Mounting Hole Quantity | 8 |
| Frame Material | Steel |
| Mounting Hole Diameter | 12.2 mm |
| Suspension Grade Type | Standard |
| Engine Mounts Included | No |
| Frame Width | 41.5 in. |
| Universal Or Specific Fit | Specific |
| Grade Type | Standard Replacement |
| Material Thickness | 0.125 in. |
| Front or Rear Suspension | Front |
| Package Contents | 1 Transmission Crossmember Assembly |
| Country of Origin | China |
| Warranty | Limited Lifetime |
OE & Interchange Numbers
| 52058940AB | Chrysler (OE) |
|---|---|
| 52058940AD | Chrysler (OE) |
| 52058940 | Chrysler (OE) |