Ford F59 Commercial Chassis Alternator Guide (2014-2019)
Keep your 2014-2019 Ford F59 running and charging correctly by understanding common issues and replacement options.
- A battery light on the dash can be caused by a wiring problem, not just a bad alternator. Proper diagnosis is critical.
- For a commercial vehicle, a new aftermarket alternator is a reliable and cost-effective choice over cheaper, but potentially less reliable, remanufactured units.
- No specific recalls or TSBs for alternator failure were found for the 2014-2019 Ford F59.
- Engine access varies by vehicle body type, which can affect the difficulty and labor cost of the replacement.
Is Your F59 Alternator Failing?
A failing alternator on a commercial truck like the F59 can cause more than just a dead battery; it can lead to vehicle downtime and lost revenue. Because modern Fords use the Powertrain Control Module (PCM) to manage the charging system, symptoms aren't always straightforward. It's not uncommon for a wiring issue to be misdiagnosed as a bad alternator. Always check for diagnostic trouble codes (DTCs) first.
Key Failure Symptoms:
- Battery Light: The most obvious sign is a battery warning light on your dash. This indicates the system is not charging correctly.
- Dim or Flickering Lights: Headlights and interior lights may dim, flicker, or seem weak, especially at idle.
- Slow Electronics: Power windows, wipers, and other accessories may operate slower than normal.
- Whining or Grinding Noises: A grinding or whining sound from the front of the engine can point to worn-out bearings inside the alternator.
- Dead Battery: The alternator's job is to recharge the battery. If the alternator fails, the battery will drain as it powers the vehicle's systems, eventually leaving you stranded.
Check Wiring First!
On modern Ford trucks, the alternator's output is controlled by the computer (PCM). A damaged wire or a bad connection between the alternator and the PCM can cause charging system faults and trigger codes like P0620 (Generator Control Circuit). Many alternators are replaced when the real problem is a simple wiring fault. A technician should verify the integrity of the control circuit before condemning the alternator.
Choosing the Right Aftermarket Alternator
For a commercial vehicle, reliability is key. While a Ford dealer can supply a new Motorcraft (OEM) alternator, it is often the most expensive option. New aftermarket alternators offer a balance of quality and cost, providing a reliable alternative without the high price tag of OEM or the inconsistent quality sometimes found in remanufactured units.
- OEM (Motorcraft): This is the part your truck was built with. It offers guaranteed fit and factory performance, but at a premium price.
- New Aftermarket (MPA): Brands like MPA (Motorcar Parts of America) produce brand-new alternators designed to meet or exceed OEM specifications. This provides a high-quality part that is more affordable than OEM and avoids the potential risks of a poorly rebuilt remanufactured unit.
Pro Tip: When replacing the alternator, it's a good practice to also inspect the serpentine belt and tensioner for wear. Replacing them at the same time can save you from future labor costs and potential breakdowns.
Replacement Cost
The cost to replace the alternator on your F59 depends on the part you choose and labor rates in your area. The F59's stripped chassis design means engine access can vary widely depending on the body installed (e.g., walk-in van, RV), which affects labor time.
| Part/Service | Estimated Cost |
|---|---|
| New OEM (Motorcraft) Part | $500 - $700+ |
| New Aftermarket Part | $330 - $441 |
| Shop Labor | $200 - $450 |
| Total (New Aftermarket) | $530 - $891 |
Cost estimates are for reference only and may vary based on location, vehicle configuration, and supplier.
Frequently Asked Questions
Are there any recalls for the 2014-2019 F59 alternator?
No. Searches of the National Highway Traffic Safety Administration (NHTSA) database and other public records show no specific recalls or technical service bulletins (TSBs) for alternator failure on the 2014-2019 Ford F59 chassis.
Can I replace the F59 alternator myself?
For a mechanic with the right tools, it is a feasible DIY job. The alternator is typically located at the top front of the engine. The process involves disconnecting the battery, releasing the serpentine belt tension, unbolting the alternator, and disconnecting the electrical plugs. However, access can be tight depending on the body fitted to the chassis, which may increase the difficulty.
Should I buy a new or remanufactured alternator?
For a commercial vehicle, a new aftermarket alternator is often the most sensible choice. While remanufactured parts are cheaper, their quality can be inconsistent, and premature failure is a common complaint in forums. A new part from a reputable aftermarket brand like MPA offers reliability closer to OEM without the high cost.
Can I upgrade my alternator?
Yes, high-output alternators are available that produce more amperage than the factory unit. An upgrade may be necessary if your vehicle has been upfitted with significant electrical equipment that exceeds the capacity of the original alternator. Ensure any upgrade is a direct-fit model to avoid installation issues.
Technical Specifications
OEM Part Numbers: BL1T-10300-BA BL1T-10300-BB BL1Z-10346-A
Amperage ratings for the Ford F59 typically range from 175 to 210 amps, depending on the vehicle's original configuration. The alternator uses a serpentine belt and is controlled by the vehicle's PCM (Powertrain Control Module).
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Ford F59: