How to service and repair the alternator on 2003 Ford F-250 Super Duty?

When servicing the alternator, you should disconnect battery ground cable, loosen the tension of the belt and dismount the belt. Unscrew the wiring harness of the generator and take off the generator bracket. Relax the bottom bolts to remove the generator. To install, the battery positive cable nut has to be hand-started in reverse.

OEM 2003 Ford F-250 Super Duty Alternator

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2003 Ford F-250 Super Duty Alternator Part Number: 4U2Z-10V346-CDRM
$198.68 MSRP: $327.27
You Save: $128.59 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Re-Manufactured Alternator Assembly
- Replaced by: 4U2Z-10V346-HDRM
- Item Weight: 14.60 Pounds
- Item Dimensions: 14.3 x 14.7 x 8.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 4U2Z-10V346-CDRM
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
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Fits the following 2003 Ford F-250 Super Duty Submodels:
- Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 10 Cyl 6.8 L GAS, 8 Cyl 5.4 L GAS
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2003 Ford F-250 Super Duty Alternator Part Number: F6AZ-10346-AARM2
$208.97 MSRP: $354.55
You Save: $145.58 (42%)
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Product Specifications
- Other Name: Alternator Assembly
- Replaces: 2C2U-10300-BB, F6AZ-10346-AARM1, F6AZ-10346-AARM, GL-491-RM
- Base No.: 10346
- Item Weight: 16.40 Pounds
- Item Dimensions: 7.8 x 7.7 x 9.8 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: F6AZ-10346-AARM2
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2003 Ford F-250 Super Duty Submodels:
- Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 10 Cyl 6.8 L GAS, 8 Cyl 5.4 L GAS, 8 Cyl 7.3 L DIESEL
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2003 Ford F-250 Super Duty Alternator, Lower Part Number: 6C2Z-10346-EARM2
$250.81 MSRP: $407.27
You Save: $156.46 (39%)
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Product Specifications
- Other Name: Alternator Assembly; Alternator, Lower
- Position: Lower
- Replaces: 6C2Z-10346-EA, GL-635, 6C2Z-10346-EARM1, GL-635-RM
- Base No.: 10346
- Item Weight: 16.20 Pounds
- Item Dimensions: 6.5 x 8.4 x 10.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 6C2Z-10346-EARM2
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2003 Ford F-250 Super Duty Submodels:
- Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 8 Cyl 6.0 L DIESEL
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2003 Ford F-250 Super Duty Alternator Part Number: 4U2Z-10V346-FYRM
$227.44 MSRP: $361.82
You Save: $134.38 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Re-Manufactured Alternator Assembly
- Replaces: 4U2Z-10V346-CFRM, 4C3Z-10346-AA, GLV-8907-RM, GLV-8569-RM, 4C3Z-10V346-AARM, 4C3Z-10V346-ABRM, 4U2Z-10V346-DZRM, GL-569, GLV-9041-RM, GLV-8663-RM
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 4U2Z-10V346-FYRM
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following 2003 Ford F-250 Super Duty Submodels:
- Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 8 Cyl 6.0 L DIESEL
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2003 Ford F-250 Super Duty Alternator Part Number: 4U2Z-10V346-MZRM
$205.88 MSRP: $327.27
You Save: $121.39 (38%)
Product Specifications
- Other Name: Re-Manufactured Alternator Assembly
- Replaces: 2C3Z-10346-AB, 2C3Z-10V346-ABRM, 4U2Z-10V346-BARM, GL-624, 2C3Z-10V346-AARM, 4U2Z-10V346-DLRM, GLV-8657-RM, GLV-8529-RM, GLV-8900-RM, GLV-9028-RM
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 4U2Z-10V346-MZRM
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following 2003 Ford F-250 Super Duty Submodels:
- Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 10 Cyl 6.8 L GAS, 8 Cyl 5.4 L GAS, 8 Cyl 7.3 L DIESEL
View related parts
2003 Ford F-250 Super Duty Alternator Part Number: 4U2Z-10V346-FVRM
$213.82 MSRP: $340.00
You Save: $126.18 (38%)
Product Specifications
- Other Name: Re-Manufactured Alternator Assembly
- Replaces: 4U2Z-10V346-DMRM, 2C3Z-10V346-BARM, GLV-8530-RM, GLV-9029-RM, 2C3Z-10V346-BBRM, 2C3Z-10346-BB, 4U2Z-10V346-CARM, GL-625, GLV-8658-RM, GLV-8902-RM
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 4U2Z-10V346-FVRM
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following 2003 Ford F-250 Super Duty Submodels:
- Lariat, XL, XLT | 8 Cyl 7.3 L DIESEL

2003 Ford F-250 Super Duty Alternator

If you're seeking quality and affordability, look no further than our extensive inventory of genuine 2003 Ford F-250 Super Duty Alternator available at FordPartsDeal.com. You can confidently purchase our OEM 2003 Ford F-250 Super Duty Alternator as they are supported by the manufacturer's warranty and our hassle-free return policy, alongside the benefit of our fast delivery service.

2003 Ford F-250 Super Duty Alternator Parts Q&A

Q: How to service and repair the alternator on 2003 Ford F-250 Super Duty?
A: When servicing the alternator, you should disconnect battery ground cable, loosen the tension of the belt and dismount the belt. Unscrew the wiring harness of the generator and take off the generator bracket. Relax the bottom bolts to remove the generator. To install, the battery positive cable nut has to be hand-started in reverse.