Alternator For Mack DM Series, DMM Series 1974-15 2511JB, A0012511JB; LNP-2511LC

Alternator For Mack DM Series, DMM Series 1974-15 2511JB, A0012511JB; LNP-2511LC

Item #: LNP-2511LC

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  • Product Info
  • Applications List
  • Part Replacement List
  • Policy Information
  • Reviews

Overview

Item Number: LNP-2511LC

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
DescriptionAlternator
FamilyLeece Neville 2500
Volt24
Amps90
Quality TypeOEM
Mount TypeJ180
Rotation DirectionClockwise / Counter Clockwise
Fan LocationExternal
Regulator LocationInternal
Terminal IDB+
Terminal Size5/16-18
PolarityInsulated

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
MackAuto and Light TruckDM Series1974
MackAuto and Light TruckDM Series1975
MackAuto and Light TruckDM Series1976
MackAuto and Light TruckDM Series1977
MackAuto and Light TruckDM Series1978
MackAuto and Light TruckDM Series1979
MackAuto and Light TruckDM Series1980
MackAuto and Light TruckDM Series1981
MackAuto and Light TruckDM Series1982
MackAuto and Light TruckDM Series1983
MackAuto and Light TruckDM Series1984
MackAuto and Light TruckDM Series1985
MackAuto and Light TruckDM Series1986
MackAuto and Light TruckDM Series1987
MackAuto and Light TruckDM Series1988
MackAuto and Light TruckDM Series1989
MackAuto and Light TruckDM Series1990
MackAuto and Light TruckDM Series1991
MackAuto and Light TruckDM Series1992
MackAuto and Light TruckDM Series1993
MackAuto and Light TruckDM Series1994
MackAuto and Light TruckDM Series1995
MackAuto and Light TruckDM Series1996
MackAuto and Light TruckDM Series1997
MackAuto and Light TruckDM Series1998
MackAuto and Light TruckDM Series1999
MackAuto and Light TruckDM Series2000
MackAuto and Light TruckDM Series2001
MackAuto and Light TruckDM Series2002
MackAuto and Light TruckDM Series2003
MackAuto and Light TruckDM Series2004
MackAuto and Light TruckDM Series2005
MackAuto and Light TruckDM Series2006
MackAuto and Light TruckDM Series2007
MackAuto and Light TruckDM Series2008
MackAuto and Light TruckDM Series2009
MackAuto and Light TruckDM Series2010
MackAuto and Light TruckDM Series2011
MackAuto and Light TruckDM Series2012
MackAuto and Light TruckDM Series2013
MackAuto and Light TruckDM Series2014
MackAuto and Light TruckDM Series2015
MackAuto and Light TruckDMM Series1974
MackAuto and Light TruckDMM Series1975
MackAuto and Light TruckDMM Series1976
MackAuto and Light TruckDMM Series1977
MackAuto and Light TruckDMM Series1978
MackAuto and Light TruckDMM Series1979
MackAuto and Light TruckDMM Series1980
MackAuto and Light TruckDMM Series1981
MackAuto and Light TruckDMM Series1982
MackAuto and Light TruckDMM Series1983
MackAuto and Light TruckDMM Series1984
MackAuto and Light TruckDMM Series1985
MackAuto and Light TruckDMM Series1986
MackAuto and Light TruckDMM Series1987
MackAuto and Light TruckDMM Series1988
MackAuto and Light TruckDMM Series1989
MackAuto and Light TruckDMM Series1990
MackAuto and Light TruckDMM Series1991
MackAuto and Light TruckDMM Series1992
MackAuto and Light TruckDMM Series1993
MackAuto and Light TruckDMM Series1994
MackAuto and Light TruckDMM Series1995
MackAuto and Light TruckDMM Series1996
MackAuto and Light TruckDMM Series1997
MackAuto and Light TruckDMM Series1998
MackAuto and Light TruckDMM Series1999
MackAuto and Light TruckDMM Series2000
MackAuto and Light TruckDMM Series2001
MackAuto and Light TruckDMM Series2002
MackAuto and Light TruckDMM Series2003
MackAuto and Light TruckDMM Series2004
MackAuto and Light TruckDMM Series2005
MackAuto and Light TruckDMM Series2006
MackAuto and Light TruckDMM Series2007
MackAuto and Light TruckDMM Series2008
MackAuto and Light TruckDMM Series2009
MackAuto and Light TruckDMM Series2010
MackAuto and Light TruckDMM Series2011
MackAuto and Light TruckDMM Series2012
MackAuto and Light TruckDMM Series2013
MackAuto and Light TruckDMM Series2014
MackAuto and Light TruckDMM Series2015

Replaces These Part Numbers

Arrowhead400-16008, 400-16008R, PL2511JB
Cummins3604225, EE8026
J&N Electrical Products400-16008, 400-16008R, 400-16029
Leece Neville2511J, 2511JB, A0012511JB, RJ2511
Lester7610
Mack Truck2MJ4124P2

Frequently Asked Questions

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.

Customer Reviews

WARNING: California’s Proposition 65

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