Overview
The Crown Automotive 68004073AA is a 186MM pinion slinger for the front position on models with a Dana 30 or Dana 44 differential. It fits 2-door and 4-door models of the 2007-2010 Dodge Nitro, the 2008-2012 Jeep Liberty (KJ) and the 2007-2018 Jeep Wrangler (JK).
A pinion slinger deflects oil away from the pinion seal inside the differential housing. This one covers two axle sizes, the Dana 30 and the Dana 44, which is useful for owners of JK Wranglers since both axles were fitted to that generation.
The 186MM figure is the size Crown gives for the part.
The 186MM size is what separates this slinger from the other Dana 30 and 44 parts. Owners should measure the old slinger if there is any doubt.
JK owners should note that the 186MM figure is a part dimension supplied by Crown. The Liberty and Nitro entries on the list are unusual, so check the model year against the list before relying on them.
Key features
- Pinion slinger, 186MM
- Works with Dana 30 or Dana 44 differentials
- Front position
- For 2-door and 4-door models
- Direct fit
Slinger and seal service
A pinion slinger sits on the pinion shaft just inside the differential, throwing oil away from the seal lip. When it is worn, bent or missing, oil can reach the seal sooner and the seal may fail early. Slingers are often replaced together with the pinion seal, since both are reached through the same repair.
When fitting the new part, check that the pinion yoke and nut are clean and undamaged, and place the slinger in the same orientation as the old one. Measure the old part first if there is any doubt about the size, and keep the differential oil at its proper level after the job. A test drive with a quick look at the housing for leaks is a sensible final check.
- Replace slinger and seal together when possible
- Inspect the pinion yoke before reassembly
- Check the gear oil level after the job
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | 68004073AA |
| UPC | 848399048001 |
| Product type | Pinion slinger |
| Size | 186MM |
| Differential | Dana 30 or Dana 44 |
| Position | Front |
| Body styles | 2-door and 4-door |
| Fit type | Direct fit |
Vehicle fitment
The manufacturer fitment list for the Crown Automotive 68004073AA includes: 2007–2010 Dodge Nitro (Detonator, Heat, R/T, SE, SLT, SXT, Shock); 2008–2012 Jeep Liberty (KJ) (Jet, Limited, Renegade, Sport); 2007–2018 Jeep Wrangler (JK) (70th Anniversary, 75th Anniversary, Rubicon, Sahara, Sport, Sport S, Unlimited 70th Anniversary, Unlimited 75th Anniversary, Unlimited Rubicon, Unlimited Sahara, Unlimited Sport, Unlimited Sport S, Unlimited X, X).
It fits the Dodge Nitro, Jeep Liberty (KJ) and Jeep Wrangler (JK). The TJ and JL Wranglers and the Cherokee models are not covered. Confirm fit for your vehicle’s year, model and trim before ordering.
Installation notes
The slinger fits on the pinion shaft, so the pinion yoke and seal come off during the job. Fit the new part in the same orientation as the old one.
What’s included
- One pinion slinger, part number 68004073AA
