CF-12251N-1G Industrial Equipment Alternator

Alternators

CF-12251N-1G

CF-12251N-1G alternator for Komatsu D20, Komatsu D20A, Komatsu D20P and related applications (24V / 25A / V1).

Brand

Specification

Voltage24V
Amperage25A
RotationCW
Pulley ClassV1
Regulator/FanIR/EF

Features

Part NoCF-12251N-1G
MFRNIKKO
Part TypeAlternator

Part Number Cross-Reference

Lester Numbers
Komatsu
Nikko

Product Advantages

Alternator matching focuses on amperage, voltage, pulley configuration, regulator/fan design, plugs, and OE replacement references.

Fitment-first matching

CF-12251N-1G is prepared for alternator sourcing with Part No, OE, Lester number, and application records checked together.

Quality and test focus

Core specifications such as voltage, power or amperage, rotation, teeth, and design are reviewed before sample or bulk quotation.

Replacement sourcing support

MFR NIKKO and replacement references including 12251, 12251A, 12251B help buyers compare existing units and reduce wrong-part risk.

Inquiry-ready supply

Share target quantity, destination, sample need, and packaging requirement so Crankvia can confirm the practical supply path.

Application Information

Application records are provided as compatibility references. Confirm OE number, vehicle configuration, engine, and market version before final ordering.

Part No

CF-12251N-1G

Records

96

Makes

2

Models

61

Year range

1986-2007

MakeModelEngineYearNote
KomatsuD204D94-2 Engine1986-1987-
KomatsuD20A4D95S Engine1991-1994-
KomatsuD20P4D95S Engine1991-1994-
KomatsuD20S4D95S Engine1991-1994-
KomatsuD214D94-2 Engine1986-1987-
KomatsuD21A4D95S Engine1991-1994-
KomatsuD21P4D95S Engine1991-1994-
KomatsuD21S4D95S Engine1991-1994-
KomatsuD314D105 Engine1986-1987-
KomatsuD406D105-5 Engine1986-1995-
KomatsuD416D105-5 Engine1986-1995-
KomatsuD506D125 Engine1988-1995-
KomatsuD536D125 Engine1988-1995-
KomatsuEC170Z4D105 Engine1986-1995-
KomatsuEC170Z6D105 Engine1986-1995-
KomatsuEC170Z6D110 Engine1986-1995-
KomatsuEC170ZS4D105 Engine1986-1995-
KomatsuEC170ZS6D105 Engine1986-1995-
KomatsuEC170ZS6D110 Engine1986-1995-
KomatsuEC210Z4D105 Engine1986-1995-
KomatsuEC210Z6D105 Engine1986-1995-
KomatsuEC210Z6D110 Engine1986-1995-
KomatsuEC260Z6D125 Engine1995-1997-
KomatsuEG2206D125 Engine1986-1995-
KomatsuEG220BS6D125 Engine1986-1995-
KomatsuEG275B6D125 Engine1986-1995-
KomatsuEG275BS6D125 Engine1986-1995-
KomatsuEZ105Z4D105 Engine1986-1995-
KomatsuEZ105Z6D105 Engine1986-1995-
KomatsuEZ105Z6D110 Engine1986-1995-
KomatsuEZ105ZS4D105 Engine1986-1995-
KomatsuEZ105ZS6D105 Engine1986-1995-
KomatsuEZ105ZS6D110 Engine1986-1995-
KomatsuFD100E6D105 Engine1995-2007-
KomatsuFD1806D105 Engine1986-2007-
KomatsuFD200E6D125 Engine1986-2007-
KomatsuFD2506D125 Engine1986-2007-
KomatsuFD250E-1S6D125 Komatsu Diesel1995-2007-
KomatsuFD250E6D125 Engine1986-1994-
KomatsuFD2806D125 Engine1986-2007-
KomatsuFD4006D125 Engine1986-2007-
KomatsuFD400E-1S6D125 Komatsu Diesel1995-2007-
KomatsuFD400E6D125 Engine1986-1994-
KomatsuFD706D105 Komatsu Diesel1986-2007-
KomatsuFDE30HT4D95L Komatsu Diesel1986-2007-
KomatsuGD2004D105 Engine1986-1991-
KomatsuGD3004D105 Engine1986-1991-
KomatsuGD510R6D105 Engine1995-1997-
KomatsuGD510R6D125 Engine1995-1997-
KomatsuGD510R6D95 Engine1995-1997-
KomatsuGD511R6D105 Engine1995-1997-
KomatsuGD511R6D125 Engine1995-1997-
KomatsuGD511R6D95 Engine1995-1997-
KomatsuGD521A6D105 Engine1995-1997-
KomatsuGD521A6D125 Engine1995-1997-
KomatsuGD521A6D95 Engine1995-1997-
KomatsuGD611A6D105 Engine1995-1997-
KomatsuGD611A6D125 Engine1995-1997-
KomatsuGD611A6D95 Engine1995-1997-
KomatsuGD661A6D105 Engine1995-1997-
KomatsuGD661A6D125 Engine1995-1997-
KomatsuGD661A6D95 Engine1995-1997-
KomatsuGD663A6D125 Engine1986-1994-
KomatsuPC1004D95 Engine1986-1994-
KomatsuPC1006D95 Engine1986-1994-
KomatsuPC1004D95 Engine1995-1997-
KomatsuPC1204D95 Engine1986-1994-
KomatsuPC1206D95 Engine1986-1994-
KomatsuPC1204D95 Engine1995-1997-
KomatsuPC1206D108 Engine1995-1997-
KomatsuPC1506D95 Engine1986-1994-
KomatsuPC2006D105 Engine1986-1987-
KomatsuPC2004D95 Engine1986-1994-
KomatsuPC2006D95 Engine1986-1997-
KomatsuPC2206D105 Engine1988-1995-
KomatsuPC2206D95 Engine1988-1995-
KomatsuPC3006D125 Engine1986-1994-
KomatsuPC3006D108 Engine1995-1997-
KomatsuPC3106D105 Engine1991-1995-
KomatsuPC3106D108 Engine1991-1995-
KomatsuPC4006D125 Engine1986-1997-
KomatsuPC4106D105 Engine1991-1995-
KomatsuPC4106D125 Engine1991-1995-
KomatsuPC60B4D95 Engine1995-1997-
KomatsuPF3W6D105 Engine1991-1995-
KomatsuPF3W6D95 Engine1991-1995-
KomatsuPF56D105 Engine1991-1995-
KomatsuPF56D95 Engine1991-1995-
KomatsuPW1004D95 Engine1986-1994-
KomatsuPW1006D95 Engine1986-1994-
KomatsuPW1506D95 Engine1986-1994-
KomatsuPW2006D105 Engine1991-1995-
KomatsuPW2006D95 Engine1991-1995-
KomatsuWA404D95 Engine1986-1990-
KomatsuWA504D95 Engine1991-1994-
MQDCA-125SSJU1997-2002-

Product matching notes

Use these checks together with the application table before final ordering.

How do I confirm CF-12251N-1G fits?

Compare Part No, OE numbers, Lester Numbers, the application records, and the spec table. The page is organized around Komatsu D20, Komatsu D20A, Komatsu D20P and related applications.

Which fields matter most?

Start with Voltage: 24V, Amperage: 25A, Rotation: CW, Pulley Class: V1, then cross-check OE numbers Komatsu 600-821-6110, 600-821-6120, 600-821-6130, 600-821-6140.

What if I only have a photo or partial number?

Share label photos, drive-end and connector shots, and any partial number or Lester Numbers 12251, 12251A, 12251B. That usually narrows the match quickly.

Related Products

CF-290-5413A Passenger Vehicle Alternator
100% NEWAlternator

CF-290-5413A

Brand:
Specifications:
12V, 90A
Part Type:
Alternator
MFR:
DENSO

Part Number Cross-Reference:

11633, Caterpillar 0R-9699, 144-9963, Denso 102211-1830

Application Summary:

Caterpillar 302.5C, Caterpillar 902, Volvo DD70 and related applications

Inquiry
CF-7024N Passenger Vehicle Alternator
100% NEWAlternator

CF-7024N

Brand:
Specifications:
12V, 78A, Rotation CW, Pulley V1
Part Type:
Alternator
MFR:
CHRYSLER

Part Number Cross-Reference:

7024, 7509, Chrysler 3438701, 3438702, 3438703, 3438704, 3438803, 3438804, 3438806, 3438807, 3438813, 3579222, 3579224, 3621861, 3621867, 3656217, 3656218, 3656219, 3656449, 3656450, 3656451, 3656456, 3656459, 3656471, 3656513, 3656570, 3656614, 3656615, 3656645, 3656713, 3752230, 3755191, 3755192, 3755193, 3755403, 3755404, 3755405, 3755406, 3755407, 3755413, 3755414, 3755447, 3780588, 3780589, 3874695, 3874696, 3874697, 3874698, 3874700, 3874701, 3874777, 3895326, 3895641, 4091563, 4091564, 4091565, 4091566, 4091568, 4091572, 4091647, 4091727, 4091795, 4111226, 4111928, 4111944, 4176002, 4176004, 4176007, 4176094, 4289689, 4289975, Volvo 3579222

Application Summary:

Chrysler 300, Chrysler Cordoba, Chrysler E Class and related applications

Inquiry
Copied