Dorman 686-421 rear left suspension knuckle assembly for the 2016-2021 Jeep Grand Cherokee and other vehicles carries the rear wheel on its bearing and hub. It takes the place of a worn-bearing repair that would otherwise mean a difficult press job or buying several separate components.
- Dorman OE FIX loaded knuckle kit with a new knuckle, hub, wheel bearing and ball joint
- Saves hours otherwise spent wrestling with individual corroded components
- Gen 1 wheel bearing set in a steel knuckle body
- Five mounting holes, each 12.3 mm in diameter
Quick facts
- Part: Dorman 686-421 suspension knuckle assembly
- Also called: wheel bearing and hub assembly, knuckle kit
- Fits: 2016-2021 Jeep Grand Cherokee and other vehicles
- Position: Rear left
- Material: Steel
- Condition: New
A hum from the rear that rises with speed can mean a rear wheel bearing and hub assembly is worn, though worn tires or a failing rear axle shaft can make that noise too, so trace it before replacing anything. A worn ball joint in the knuckle can show up as a clunk over bumps.
Fits
For a 2016-2021 Jeep Grand Cherokee rear wheel bearing replacement on the left side, this suspension knuckle assembly is a direct fit, and it also fits the 2016-2024 Dodge Durango and the 2022 Jeep Grand Cherokee WK. This listing is the rear left knuckle; the rear right is a separate part, and both rear knuckles are normally replaced at the same time.
Specifications
Fit and size
- Position: Rear left
- Quantity: 1 for the rear left
- Inside diameter: 96.2 mm
- Outside diameter: 113.5 mm
- Mounting holes: 5, each 12.3 mm in diameter
- Length: 290.8 mm
- Width: 280 mm
Build and materials
- Material: Steel
- Bearing generation: Gen 1
- Included components: hub, wheel bearing and ball joint
- Condition: New
- Designed in: United States
- Country of origin: China
In the box
One suspension knuckle assembly, one ball joint nut and one axle nut; this listing holds one, which is what the rear left position takes. Mounting hardware is not included, so plan on new bolts, as the old ones may not be reusable.
Installation notes
- Arrives pre-pressed with the main components assembled, ready right out of the box for a fast, simple, safe install.
- No hydraulic press is needed for the bearing repair, which makes the job faster and more predictable for professionals and DIYers.
Frequently Asked Questions
Can this replace a 2016-2021 Jeep Grand Cherokee wheel bearing on the rear left?
Yes. Dorman 686-421 fits the rear left of the 2016-2021 Jeep Grand Cherokee and comes with the wheel bearing, hub and ball joint already pressed into the knuckle.
Does Dorman 686-421 work for a 2016-2024 Dodge Durango wheel bearing replacement?
Yes. Dorman 686-421 fits the rear left of the 2016-2024 Dodge Durango, and it also fits the 2022 Jeep Grand Cherokee WK.
Is the Dorman wheel hub already pressed into this knuckle?
Yes. The hub, wheel bearing and ball joint arrive pre-pressed in this suspension knuckle assembly, so the bearing repair needs no hydraulic press.
What generation is the Dorman wheel bearing in this rear left knuckle?
This suspension knuckle assembly carries a Gen 1 wheel bearing, set in a steel knuckle with five 12.3 mm mounting holes.
Are mounting bolts included with this knuckle assembly, or only the nuts?
Only the nuts. This suspension knuckle assembly comes with one ball joint nut and one axle nut; mounting hardware is not included, so plan on new bolts.
