C0050 on RAM: How to Diagnose & Fix
Right Rear Wheel Speed Sensor Circuit
1 RAM model · 1 documented issue · $300-$700 repair
C0050 on RAM by model: symptoms, diagnosis and fix
The front hub bearings (wheel bearing assemblies) in the RAM 3500 fail prematurely, particularly on trucks that carry heavy loads in the bed or tow heavy trailers. The factory hub bearings are adequate for unloaded driving but wear rapidly under sustained heavy GVWR/GCWR conditions. 4x4 models are more affected due to the additional stress of the front axle components. Bearing failure typically occurs between 60,000-100,000 miles on heavy-use trucks.
Common Symptoms
- Humming or droning noise that changes with vehicle speed
- Noise increases when turning in one direction
- ABS or traction control warning light
- Play or looseness felt in the front wheel
- Vibration in steering wheel at highway speeds
How to Fix
Replace the front hub bearing assembly (Timken HA590576 or Moog 515162 are highly rated). The hub bearing is a bolt-on unit on these trucks — 4 bolts from the back of the steering knuckle. Replace both sides if one has failed, as the other is likely not far behind. Use ABS-compatible hub assemblies. Budget $300-$700 per side for parts and labor.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Timken HA590467 front hub and bearing
Confirm VIN, drive, cab/chassis, build date, spline and ABS connector.
- Timken HA590628 front hub and bearing
Confirm the exact notes and ABS lead before ordering.
- Genuine Mopar 68292887AA front hub and bearing
2019-2025 Ram 3500 6.4L/6.7L listed configurations; confirm VIN, axle ratio and current supersession, including 68292887AB where applicable.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Owner tips & cautions
- TipTimken HA590576 and Moog 515162 are the top choices for replacement. Avoid cheap imported hub bearings — they often fail within 20,000 miles on a 3500 that tows.
- TipWhen one front hub bearing goes, replace both sides. If one failed at 80,000 miles, the other is likely at 85% wear and will fail within 10,000-15,000 miles.
C0050 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does C0050 mean on a RAM?
C0050 stands for "Right Rear Wheel Speed Sensor Circuit." This is a brake/ABS-system code. The right rear wheel speed sensor reports how fast that wheel spins so the anti-lock brake, traction control, and stability systems can do their job. C0050 means the ABS module detected an electrical fault in the right rear wheel speed sensor circuit — an open, short, or an erratic/out-of-range signal. This usually turns on the ABS and traction/stability warning lights and may disable those features, though standard braking remains available. On RAM it is documented across 1 model: 3500.
What are the most common causes of C0050?
The most common causes of C0050 are: Failed right rear wheel speed sensor, Damaged, corroded or disconnected sensor wiring/connector, Damaged or rusty tone/reluctor ring (missing or clogged teeth), Excessive air gap between sensor and tone ring, Wheel bearing wear affecting an integrated sensor, Moisture or corrosion in the connector, Faulty ABS control module (less common). The specific cause varies by vehicle.
How much does it cost to fix C0050 on a RAM?
Published repair estimates on RAM range from $300 to $700 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for C0050 on a different make?
View C0050 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.