Specifications
- MFR:MARELLI
- DIM 1:105mm OD
- FEATURE 1:100% New
- FEATURE 2:6-25A diodes
- NOTE 1:With diode trio.
- SPECS FOR:Femsa Alternators
- SPECS:12 Volt
USED ON
- Aifo (1971-1983) ** Fiat (1968-1977) ** Fiat - Europe (1974-1978) ** Fiat-Allis (1970-1978) ** FSO - Europe (1978-1983) ** FSO LCV - Europe (1978-1983) ** Hesston (1981-1982) ** Iveco Fiat LCV / Heavy Duty - Europe (1978-1983) ** Lancia - Europe (1976-1980) ** Oliver (1973-1980) ** White Industrial (1976-1980)
Replaces
- Bosch 9 121 337 320, 9 121 337 322, 9 121 337 323, 9 121 337 324, 9 121 337 326, 9 121 337 327, 9 121 337 337, Femsa 25945-9, Fiat 4262908, 4474546, 4474847, Lucas 74967491, UBB601, UBB802, Marelli 72966621, 74966611, 74966621, 749667491, 74967171, 74969191, 74992571, 940038236
LESTER NUMBERS
- 13075, 14045, 14065
UNIT NUMBERS
- Alfa Romeo 116760506000; Femsa ALB4035, ALB4045, ALB4068, ALB4077, ALB4086, ALB4087, ALB40N88, ALB40N89, ALB40N90; Fiat 4152101, 4152612, 4222696, 4222697, 4242730, 4263584, 4263983, 4306041, 4306700, 4392832, 4396883, 4474581, 4474704, 4474904, 4475036, 4476376; Letrika (Iskra) Tech. AAK1135, AAK3197, AAK4162; Marelli 063304830010, 63302900, 63303203, 63303213, 63303223, 63303780, 63304800, 63304830
Vehicle Application
| Make | Model | Year | Engine |
| Aifo | 8031 | 1979-1983 | 2.8L - 2750cc Dsl |
| Aifo | 8035 | 1973-1983 | 2.6L - 2591cc Dsl |
| Aifo | 8045 | 1973-1981 | 3.5L - 3450cc Dsl |
| Aifo | 8065 | 1973-1981 | 5.2L - 5190cc Dsl |
| Aifo | CO 31 | 1971-1981 | 4.9L - 4940cc Dsl |
| Aifo | CO 31 | 1971-1981 | 5.4L - 5410cc Dsl |
| Fiat - Europe | 244 | 1974-1977 | 1300 |
| Fiat - Europe | 244 | 1974-1977 | 1600 |
| Fiat - Europe | 245 | 1974-1977 | 1600 |
| Fiat - Europe | 245 | 1974-1977 | 2000 |
| Fiat - Europe | X1/9 | 1976-1978 | 1300 |
| Fiat-Allis | 4 | 1971-1978 | 8035 Diesel |
| Fiat-Allis | BD-8 | 1970-1972 | OM-CO3 Engine |
| Fiat-Allis | FL-4C | 1971-1978 | 8035 Diesel |
| Fiat-Allis | FL-4D | 1974-1978 | 8035 Diesel |
| Fiat-Allis | TL-5 | 1970-1972 | 8035 Diesel |
| Fiat-Allis | TL-5H | 1971-1974 | 8035 Diesel |
| Fiat | 124 | 1968-1969 | L4 1.2L 1197cc |
| Fiat | 124 | 1968-1969 | L4 1.2L 1197cc 73cid |
| Fiat | 124 | 1968-1973 | L4 1.4L 1438cc |
| Fiat | 124 | 1968-1973 | L4 1.4L 1438cc 88cid |
| Fiat | 124 | 1971-1973 | L4 1.6L 1608cc |
| Fiat | 124 | 1971-1973 | L4 1.6L 1608cc 98cid |
| Fiat | 124 | 1972-1973 | L4 1.6L 1592cc 97cid |
| Fiat | 124 | 1974-1975 | L4 1.8L 1756cc |
| Fiat | 124 | 1974 | L4 1.8L 1756cc 107cid |
| Fiat | 128 | 1971-1973 | L4 1.1L 1116cc |
| Fiat | 128 | 1972-1974 | L4 1.3L 1290cc 79cid |
| Fiat | 128 | 1973-1977 | L4 1.3L 1290cc |
| Fiat | X-1/9 | 1974-1977 | L4 1.3L 1290cc |
| Fiat | X-1/9 | 1974 | L4 1.3L 1290cc 79cid |
| FSO - Europe | 125P | 1978-1983 | 1500 |
| FSO - Europe | Polonez | 1978-1983 | 1500 |
| FSO LCV - Europe | 125P | 1978-1983 | 1500 |
| Hesston | 640 | 1981-1982 | 8045 Fiat Diesel |
| Hesston | 640DT | 1981-1982 | 8045 Fiat Diesel |
| Iveco Fiat LCV / Heavy Duty - Europe | Daily 35 | 1978-1983 | 2400 |
| Lancia - Europe | Montecarlo | 1976-1980 | 2000 |
| Oliver | 1465 | 1973-1975 | 278 Diesel Engine |
| Oliver | 1470 | 1976-1980 | 278 Diesel Engine |
| White Industrial | 2-50 | 1976-1980 | Fiat 3-158 Diesel |
| White Industrial | 2-60 | 1976-1980 | Fiat 4-211 Diesel |
Features & Benefits
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Precision aftermarket replacement part
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Converts alternator-generated AC current into DC current for the vehicle charging system
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Helps maintain proper battery charging and electrical system performance
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Designed to provide reliable current rectification and power distribution
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Manufactured to match original fit and function
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Designed for dependable long-term operation
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Ideal for alternator rebuilding and repair
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Cross-referenced to OEM and aftermarket part numbers
What Does an Alternator Rectifier Do?
The alternator rectifier converts the alternating current (AC) produced by the alternator stator into direct current (DC) that can be used by the vehicle's electrical system and battery. It uses a series of diodes to control the direction of electrical current, allowing the alternator to provide usable DC charging output.
A properly functioning rectifier is essential for stable alternator performance and reliable battery charging. Failed or damaged rectifier diodes can reduce alternator output, create excessive AC ripple, cause intermittent charging problems, or prevent the alternator from charging properly. Replacing a faulty rectifier is an important step in restoring proper alternator operation.
Common Signs Replacement Is Needed
Replace the alternator rectifier if you notice:
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Battery warning light illuminated
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Battery not charging properly
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Low or inconsistent charging output
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Excessive AC ripple during charging system testing
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Failed or shorted rectifier diodes
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Intermittent charging system operation
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Excessive heat or visible damage to the rectifier
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Burned, damaged, or corroded stator connections
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Rectifier failure discovered during alternator rebuilding or bench testing
Installation Recommendations
Installation should be performed by a qualified technician or experienced alternator rebuilder. Before installing the new rectifier, inspect the stator leads, rotor, voltage regulator, brushes, brush holder, slip rings, bearings, terminals, insulators, and internal wiring for signs of wear, overheating, corrosion, or damage.
Always verify the rectifier mounting configuration, terminal arrangement, stator connection points, dimensions, and electrical design before installation. Where soldering is required, use proper alternator rebuilding procedures and avoid excessive heat that could damage the rectifier or surrounding components.
After reassembly, bench-test the alternator to confirm proper charging output, diode operation, and AC ripple performance before returning the alternator to service.
While You're Rebuilding
Inspect other common wear components to help maximize charging system reliability:
Why Buy From RC Auto Electric?
RC Auto Electric specializes in alternator and starter rebuilding components for professional rebuilders, repair shops, automotive technicians, and DIY enthusiasts. Our extensive catalog includes thousands of OEM and aftermarket electrical components backed by accurate cross-reference information to help simplify part identification and reduce ordering mistakes.
Disclaimer
Compatibility information is provided as a reference only. Manufacturing revisions, production changes, and previous rebuilding modifications may affect internal alternator components. Always compare the original rectifier, mounting configuration, terminal arrangement, stator connection points, dimensions, electrical specifications, cross-reference numbers, and product photographs before installation. If you are unsure about compatibility, contact RC Auto Electric before ordering.