From the brand
Confirmed Vehicle Fitment
This alternator is compatible with the following Ford and Lincoln V8 gasoline engines:
Ford
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F-150 — 2004–2008
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4.6L V8
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5.4L V8
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Expedition — 2005–2006
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V8
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Lincoln
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Mark LT — 2006–2008
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V8
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Navigator — 2005–2006
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V8
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⚠️ Always verify engine size and OE part number before ordering.
Product description
BDELI – Better Deliver, Better Deal
Why Alternator Health Matters on Ford V8 Trucks
Once the engine is running, the alternator becomes the primary electrical power source for:
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Engine management and ignition
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Transmission and traction systems
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Power steering and braking electronics
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Headlights, exterior lighting, and accessories
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HVAC, infotainment, and towing electronics
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Charging and maintaining the battery

When alternator output drops, the battery is forced to compensate — briefly — and then fails early. Symptoms include:
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Repeated dead batteries
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Flickering or dim headlights
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Charging system warning lights
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Electrical glitches and no-start situations
Replacing the alternator fixes the root cause, not just the symptoms.
Make sure this product fits your car by using the part finder above.
Specifications
| Replace | Fit for Ford |
| VOLTAGE | 12 |
| DESIGN | IR/IF |
| AMPERAGE | 110 |
| PULLEY TYPE | S6 |
| ROTATION | CW |
REPLACEMENT FOR or COMPATIBLE WITH FORD:
F150 Heritage V8 5.4L 04-04
F150 Heritage V8 4.6L 04-04
F150 V8 5.4L 04-08
F150 V8 4.6L 04-08
Expedition V8 5.4L 05-06
REPLACEMENT FOR or COMPATIBLE WITH LINCOLN:
Navigator V8 5.4L 05-06
Mark LT V8 5.4L 06-08
Designed for Factory-Correct Charging Output
Ford engineered these V8 platforms around a specific amperage range to support towing, accessories, and heavy electrical loads. This alternator delivers:
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Stable voltage at idle and cruising speeds
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Proper battery recharge after cold starts
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Consistent output under accessory load
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Reduced stress on wiring and electronic components
Not oversized. Not underpowered. Exactly what these trucks expect.

Brand-New Construction for Long-Term Reliability
This alternator features:
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New high-efficiency copper windings
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Internal voltage regulator for consistent output
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Precision-balanced rotor and heavy-duty bearings
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OE-style mounting points and electrical connectors
No reman internals. No mystery history. Just dependable charging you don’t have to think about.
OE/Part Numbers
- Ford: 4L3U-10300-BA, 4L3U-10300-BB, 4L3Z-10346-BA, 4L3Z-10346-BB, 4L3Z-10V346-BBRM, 4U2Z-10V346-AFRM, 6L3Z-10346-AA, 6L7Z-10346-AARM, 6L7Z-10346-CRM, 6L7Z-10V346-AARM, 6U2Z-10V346-ACRM, 7L3T-10300-AA, 7L3Z-10346-A, 7L3Z-10346-AARM, 7L3Z-10346-CRM, GL974RM, 5L7T-10300-CB, 5L7Z-10346-CA, 6L7T-10300-AA, 6L7Z-10346-A
- Ford Engineering: 4L3U-BA, 7L3T-AA, RM4U2J-10D309-ASC, RM6L7T-10300-AD
- Original Reference Number: 4L3U-BB
- Lester: 8318, 8443
- Arrowhead: AFD0110
- J & N Automotive: 400-14066, 400-14086
- AC-Delco: 334-2633A, 334-2637A
- Bosch Remanufactured: AL7608X, AL7634X
Why Buy from Pro Street Online?
At Pro Street Online, we sell parts that actually solve problems. This alternator is:
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Vehicle-specific
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Properly rated for Ford and Lincoln V8 platforms
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Brand new — not recycled
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Designed to restore factory charging reliability
Perfect for daily drivers, work trucks, tow rigs, and long-term ownership vehicles.






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