One Wire Marine Alternator for OMC Prestolite Others 78 Amp
One Wire Marine Alternator for OMC Prestolite Others 78 Amp
One Wire Marine Alternator for OMC Prestolite Others 78 Amp
One Wire Marine Alternator for OMC Prestolite Others 78 Amp
One Wire Marine Alternator for OMC Prestolite Others 78 Amp
One Wire Marine Alternator for OMC Prestolite Others 78 Amp
One Wire Marine Alternator for OMC Prestolite Others 78 Amp

One Wire Marine Alternator for OMC Prestolite Others 78 Amp

Item #: 400-20013

30-DAY RETURN POLICY

If your order arrives and it’s not exactly what you want, you may return it within 30 days for a refund. We know that people sometimes order a part and then discover it’s not exactly the one they need for the repair. We understand and want to work with you. Just make sure the item is in its original packaging and in good condition free of damage.

When a returned product comes back to us, we’ll check it over to make sure it’s in ‘Like New’ condition and free from damage such as dents, scratches, cracks, abuse, defacement or indication of removed screws/fasteners or seals. Return processing may take up to 5 business days from the time your product is received by DB Electrical.

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DB Electrical marine alternators excel for powering watercrafts.
  • Built to Beat the Heat: High temperature epoxy and high temperature grease withstand extreme heat
  • Heavy-duty rectifiers and high-quality regulators enhance superior charging performance
  • Plated fans, pulleys and hardware protect against rust-producing dampness
  • Marine alternators meet SAEJ1171 certification for use on boats and jet skis
  • Factory direct, money-saving alternator typically priced substantially less than OEM counterparts
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  • Product Info
  • Applications List
  • Part Replacement List
  • Policy Information
  • Reviews

Overview

DB Electrical Alternators
DB Electrical keeps vehicles of every shape and size moving forward – from mowers, motorcycles and ATVs to automobiles, tractors, pickups and large commercial trucks. We work directly with factories to ensure each component is manufactured to our exacting quality control standards. But because there is no middleman, we can offer these exceptional-quality electrical components at low factory direct prices.

With DB Electrical alternators, you’ll get …

  • Superior Quality Every Time – Our aftermarket alternators deliver performance that’s equivalent to the original.
  • Direct-Fit OEM Replacement Parts – DB Electrical aftermarket alternators are designed for perfect fitment to replace the ones that originally came with your vehicle.
  • Engineer-Tested Excellence – Our alternators go through a rigorous testing program to ensure optimal performance. Most alternators are supplied with their final test results and performance curve.

Reasons to choose DB Electrical for your next alternator:

  • Built to Take the Heat – Most DB Electrical alternators offer high-temperature epoxy, heavy-duty rectifiers, high-quality regulators, top-quality bearings and high-temperature grease for better charging and longer life under high-heat environments.
  • Depth of Inventory – Find both common and hard-to-find alternators for virtually any type of vehicle to travel over road, trail or water.
  • Brand New Alternator – Never settle for a secondhand one. Many places will try to sell you a used alternator for about the price we’ll sell you a new one.

The DB Electrical Advantage – 1-Year Warranty
DB Electrical delivers exceptional value for products that we stand behind with our total-confidence 1-year warranty. Yes, you have a full year to make sure your alternator meets your expectations.

Item Number: 400-20013

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
Unit TypeAlternator
Voltage12
RotationCW
DimensionReplacement 10SI Type Unit:, Mtg. Ear Holes (3): 5/16-18 Threaded, Mtg. Ear Holes (2): 10.2mm Unthreaded, B+ Terminal: 12-24, Polarity: Negative, Notes:, 1-Wire Universal Replacement, w/Spark Arrestor Screen,
Amperage63
Clock12
Pulley ClassV1
RegulatorIR
Fan TypeEF
FitsMarine Applications
(ORIGINALLY PRESTOLITE)
This is a 10SI Style Alternator Used to Replace the Prestolite Alternators (Lester 7041, 7324) With Dual Top Ears Listed in Marine Applications

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
Chris Craft283 Corvett1962, 1963, 1964, 1965, 1966, 1967
Chris Craft283-O Corvett1962, 1963, 1964, 1965, 1966, 1967
Chris CraftAll Models 283 283-0 Corvette Engin1961, 1962, 1963, 1964, 1965, 1966
Chris CraftAll Models 283 283-0 Corvette Engin1962, 1963, 1964, 1965, 1966, 1967
Chris CraftAll Models 283 283-0 Corvette Engin1967
Chris CraftAll Models 283F Corvette Engin1961, 1962, 1963, 1964, 1965, 1966
Chris CraftAll Models 283F Corvette Engin1963, 1964, 1965, 1966
Chris CraftAll Models 307, 327 Corvette Engin1961, 1962, 1963, 1964, 1965, 1966
Chris CraftAll Models 307, 327 Corvette Engin1963, 1964, 1965, 1966
Chrysler MarineVarious Models LM3181970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Chrysler MarineVarious Models LM3181970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Chrysler MarineVarious Models LM3181970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Chrysler MarineVarious Models LM3401970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Chrysler MarineVarious Models LM3401970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Chrysler MarineVarious Models LM3401970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Chrysler MarineVarious Models LM3831970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Chrysler MarineVarious Models LM3831970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Chrysler MarineVarious Models LM3831970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Chrysler MarineVarious Models M261970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Chrysler MarineVarious Models M261970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Chrysler MarineVarious Models M261970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Chrysler MarineVarious Models M2731970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Chrysler MarineVarious Models M2731970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
Chrysler MarineVarious Models M2731970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988
CrusaderVarious Models Various Engine
CrusaderVarious Models Various Engine
Dearborn144 Ga1962, 1963, 1964, 1965
Dearborn170 Ga1962, 1963, 1964, 1965
Dearborn221 Ga1962, 1963, 1964, 1965
Dearborn236 Ga1962, 1963, 1964, 1965
Dearborn312 Ga1962, 1963, 1964, 1965
Dearborn390 Ga1962, 1963, 1964, 1965
Flagship150 GM1971, 1972, 1973, 1974, 1975, 1976
Flagship170 GM1971, 1972, 1973, 1974, 1975, 1976
Flagship283 8 Cyl. 283CI 4.61962, 1963
Flagship283 8 Cyl. 283CI 4.61964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
Flagship292 6 Cyl. 292CI 4.81971, 1972, 1973, 1974, 1975, 1976
Flagship307 8 Cyl. 307CI 5.01967, 1968, 1969, 1970, 1971, 1972, 1973
Flagship327 8cyl 327ci 5.3L G1966, 1967
Flagship327 8cyl 327ci 5.3L G1967, 1968, 1969, 1970, 1971, 1972, 1973
Flagship350 8 Cyl. 350CI 5.71967, 1968, 1969, 1970, 1971, 1972, 1973
Flagship427 8 Cyl. 427CI 7.01967, 1968, 1969, 1970, 1971, 1972, 1973
MercruiserModel 110 GM 2.5L - 153ci - 4cy1963, 1964, 1965, 1966
MercruiserModel 1102500cc, 2.5L/153CI 4-Cyl 1963, 1964, 1965, 1966
MercruiserModel 120 GM 2.5L - 153ci - 4cy1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
MercruiserModel 1202500cc, 2.5L/153CI 4-Cyl 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
MercruiserModel 140 GM 3.0L - 181ci - 4cy1968, 1969, 1970, 1971, 1972
MercruiserModel 140 GM 3.2L - 194ci - 6cy1963
MercruiserModel 1403000cc, 3L/181CI 4-Cyl 1968, 1969, 1970, 1971, 1972
MercruiserModel 1403200cc, 3.2L/194CI 6-Cyl 1963
MercruiserModel 150 GM 3.8L - 230ci - 6cy1964, 1965, 1966
MercruiserModel 1503800cc, 3.8L/230CI 6-Cyl 1964, 1965, 1966
MercruiserModel 190 GM 4.6L - 283ci - 8cy1963, 1964
MercruiserModel 1904600cc, 4.6L/283CI 8-Cyl 1963, 1964
MercruiserModel 225 GM 5.3L - 327ci - 8cy1963, 1964, 1965, 1966
MercruiserModel 2255400cc, 5.4L/327CI 8-Cyl 1963, 1964, 1965, 1966
MercruiserRover 60 60ci - 4cy1965, 1966, 1967
MercruiserRover 60 60CI 4-Cy1965, 1966, 1967
OMC100 100H1972, 1973
OMC120 120H1969, 1970, 1971, 1972, 1973, 1974
OMC120 120H1975, 1976, 1977, 1978, 1979, 1980, 1981
OMC140 140H1973, 1974
OMC140 140H1975, 1976, 1977, 1978, 1979, 1980, 1981
OMC155 155H1969, 1970, 1971, 1972
OMC165 165H1972, 1973, 1974
OMC165 165H1975, 1976
OMC170 170H1974
OMC175 175H1975, 1976, 1977
OMC185 185H1978, 1979, 1980
OMC190 190H1974
OMC190 190H1975, 1976, 1977
OMC200 200H1979, 1981
OMC210 210H1969, 1970
OMC215 215H1971
OMC225 225H1972, 1973, 1974
OMC225 225H1975, 1976, 1978
OMC230 230H1979, 1980, 1981
OMC235 235H1971
OMC235 235H1975, 1976, 1977
OMC240 240H1978
OMC245 245H1972, 1973, 1974
OMC245 245H1975
OMC250 250H1979
OMC260 260H1979, 1980, 1981
OMC80 80H1967, 1968, 1969
OMC90 90H1970, 1971
Owens Yacht1501971, 1972, 1973, 1974, 1975, 1976
Owens Yacht1701971, 1972, 1973, 1974, 1975, 1976
Owens Yacht283 8 Cyl. 283CI 4.61962, 1963
Owens Yacht283 8 Cyl. 283CI 4.61964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
Owens Yacht292 6 Cyl. 292CI 4.81971, 1972, 1973, 1974, 1975, 1976
Owens Yacht307 8 Cyl. 307CI 5.01967, 1968, 1969, 1970, 1971, 1972, 1973
Owens Yacht327 8 Cyl. 327CI 5.41966, 1967
Owens Yacht327 8 Cyl. 327CI 5.41967, 1968, 1969, 1970, 1971, 1972, 1973
Owens Yacht350 8 Cyl. 350CI 5.71967, 1968, 1969, 1970, 1971, 1972, 1973
Owens Yacht427 8 Cyl. 427CI 7.01967, 1968, 1969, 1970, 1971, 1972, 1973
PalmerIH2151961, 1962, 1963, 1964, 1965, 1966
PalmerIH2151961, 1962, 1963, 1964, 1965, 1966
PalmerIH2151961, 1962, 1963, 1964, 1965, 1966
PalmerIH2401961, 1962, 1963, 1964, 1965, 1966
PalmerIH2401961, 1962, 1963, 1964, 1965, 1966
PalmerIH2401961, 1962, 1963, 1964, 1965, 1966
PalmerIH2641961, 1962, 1963, 1964, 1965, 1966
PalmerIH2641961, 1962, 1963, 1964, 1965, 1966
PalmerIH2641961, 1962, 1963, 1964, 1965, 1966
PalmerIH301D1961, 1962, 1963, 1964, 1965, 1966
PalmerIH301D1961, 1962, 1963, 1964, 1965, 1966
PalmerIH301D1961, 1962, 1963, 1964, 1965, 1966
PalmerIH3451961, 1962, 1963, 1964, 1965, 1966
PalmerIH3451961, 1962, 1963, 1964, 1965, 1966
PalmerIH3451961, 1962, 1963, 1964, 1965, 1966
PalmerIH601961, 1962, 1963, 1964, 1965, 1966
PalmerIH601961, 1962, 1963, 1964, 1965, 1966
PalmerIH601961, 1962, 1963, 1964, 1965, 1966
PalmerPH1341961, 1962, 1963, 1964, 1965, 1966
PalmerPH1341961, 1962, 1963, 1964, 1965, 1966
PalmerPH1341961, 1962, 1963, 1964, 1965, 1966
Starrett172FD (60 HP)1962, 1963
Starrett172FD1963
Starrett172FD1963
Starrett220FD1963
Starrett220FD1963
Starrett330FD1963
Starrett330FD1963
UniversalAtomic Four 4 Cyl. Ga1963
UniversalAtomic Four 4 Cyl. Ga1964, 1965
UniversalAtomic Four 4-Cyl , Ga1964, 1965
UniversalUtility Four 4 Cyl. Ga1963
UniversalUtility Four 4 Cyl. Ga1964, 1965
UniversalUtility Four 4-Cyl , Ga1964, 1965

Replaces These Part Numbers

API MARINE20037
ARCO MARINE40112
ARROWHEADADR0395
EMP PARTS4-5954
J&N Electrical Products400-20006, 400-20013
LESTER8903
SIERRA MARINE18-5954
WAI8903N-61A

Frequently Asked Questions

Q: What is a 1-wire alternator?
A: The name is very descriptive. It’s an alternator that only has a single wire for hookup to the battery. Most alternators nowadays have 3 wires for connecting to other electrical components.

Q: Why would anyone choose a 1-wire alternator?
A: Easy installation and a clean look with fewer wires are two big advantages of 1-wire alternators. Owners of classic cars and hot rods who want a clean and tidy look under the hood often prefer 1-wire alternators.

Q: Why else may a mechanic choose a 1-wire alternator?
A: If an older vehicle originally came with a generator, you may be able to upgrade to a 1-wire alternator. Old tractors are often ideal candidates for a 1-wire alternator in these circumstances.

Q: Are there circumstances when a 1-wire alternator is not a suitable choice?
A: Don’t use a 1-wire alternator with engines that run with a low RPM, nor with applications requiring the harness plug to be installed.

Q: Do I need a larger charge wire for a High Output unit?
A: The high amp unit will operate better than stock, but not to its full potential without a larger charge wire. It’s the same reason firetrucks do not use garden hoses. It is IMPARATIVE to have proper charge and ground cables.

Q: Does a High Amp unit cause any damage to my battery or my vehicles charging system?
A: As long as it is installed properly with battery in good condition, then no. A High Output unit works exactly like a factory unit and only produces what is being demanded. No alternator works continuously at full output. Higher amperage is not bad and will not hurt a battery, but high voltage will blow one up.

Q: Will aftermarket underdrive pulleys (crankshaft power pulley) have any effect on my alternator?
A: Yes, underdrive crankshaft pulleys slow all the components (power steering, a/c, and alternator) to provide more power to the rear wheels. In some cases, the charging systems will fall totally on the battery at idle and completely stop charging.

Q: Where is the best place to get a voltage reading of the alternator output?
A: You’ll get the most accurate voltage reading from the back of the alternator at the main charge post that runs directly to the battery. This must be done while the vehicle is running.

Q: Why is the pulley on a high amp alternator smaller than my stock pulley?
A: The smaller pulley advances the power curve of the alternator just slightly, which produces a little more amperage around the idle if needed.

Q: Will I need a smaller belt for my high amp unit?
A: This varies by application because not all belts and belt tensioners are in the same condition. The tensioner will always tell you if you need a new belt or not. If it’s in range, you will not. If it is out, you will. Generally, you will need a belt that is one inch shorter than stock. You should have no problem finding a replacement wherever you buy your parts. V belt applications simply re-adjust your belt tensions to 3/8” deflection.

Q: What is the difference between a one wire, self-exciting and a self-energizing regulator?
A: Nothing. They are all exactly the same. Different manufacturers use different terms for marketing. The only wire to hook up is the charge wire to the battery. This does require modification for the alternator charge light on the dash.

Q: My stock unit used a five-groove pulley, and you sent my high amp alternator with a 6 groove. Why and what can I do?
A: 5 groove overdrive pullies are not produced. Install the belt on the back groove of the pulley closest to the fan or body of the alternator. The fan is internal, and this application will work just fine.

Q: Can your alternator be run in dual or triple alternator applications?
A: Yes. When wired and mounted correctly, the alternator can run in either dual or triple applications.

Q: Will I need a new battery with a high amp alternator?
A: If your battery is in good condition, and in spec of its OEM rating, then no. Your battery should work equally well with either the OEM and a High Amp unit.

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