Alternators

CF-21406N

Name: CF-21406N Agricultural Machinery Alternator
Brand: Crankvia
SKU: 21406N

CF-21406N alternator for Case IH STX375, Case IH STX375QT, Case IH STX425 and related applications (12V / 120A).

Brand

Specification

Voltage	12V
Amperage	120A
Rotation	CW
Regulator/Fan	IR/IF

Features

Part No	CF-21406N
MFR	DELCO
Part Type	Alternator

Part Number Cross-Reference

Lester Numbers
Caterpillar
Delco

Product Advantages

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

Fitment-first matching

CF-21406N 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 DELCO and replacement references including 21406 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-21406N

Records

Makes

Models

Year range

2000-2025

Make	Model	Engine	Year	Note
Case IH	STX375	L6 15.0L - 912cid Cummins QSX15	2000-2007	-
Case IH	STX375	L6 15.0L - 912cid QSX15	2000-2007	-
Case IH	STX375QT	L6 15.0L - 912cid Cummins QSX15	2000-2007	-
Case IH	STX375QT	L6 15.0L - 912cid QSX15	2000-2007	-
Case IH	STX425	L6 15.0L - 912cid Cummins QSX15	2000-2007	-
Case IH	STX425	L6 15.0L - 912cid QSX15	2000-2007	-
Case IH	STX425QT	L6 15.0L - 912cid Cummins QSX15	2000-2007	-
Case IH	STX425QT	L6 15.0L - 912cid QSX15	2000-2007	-
Case IH	STX450	L6 15.0L - 912cid Cummins QSX15	2000-2007	-
Case IH	STX450	L6 15.0L - 912cid QSX15	2000-2007	-
Case IH	STX450QT	L6 15.0L - 912cid Cummins QSX15	2000-2007	-
Case IH	STX450QT	L6 15.0L - 912cid QSX15	2000-2007	-
Caterpillar	910M	L4 4.4L 269cid C4.4	2016-2020	-
Caterpillar	910M	L4 4.4L 269cid CaterpiLLar C4.4	2016-2020	-
Caterpillar	914M	L4 4.4L 269cid C4.4	2016-2020	-
Caterpillar	914M	L4 4.4L 269cid CaterpiLLar C4.4	2016-2020	-
Caterpillar	918M	L4 4.4L 269cid C4.4	2016-2020	-
Caterpillar	918M	L4 4.4L 269cid CaterpiLLar C4.4	2016-2020	-
Caterpillar	CB44B	L4 4.4L 269cid C4.4	2012-2021	-
Caterpillar	CB44B	L4 4.4L 269cid CaterpiLLar C4.4	2012-2021	-
Caterpillar	CB54B	L4 4.4L 269cid C4.4	2012-2021	-
Caterpillar	CB54B	L4 4.4L 269cid CaterpiLLar C4.4	2012-2021	-
Caterpillar	CW16	L4 3.4L 208cid C3.4B	2015-2022	-
Caterpillar	CW16	L4 3.4L 208cid CaterpiLLar C3.4B	2015-2022	-
Caterpillar	CW16	L4 4.4L 269cid CaterpiLLar C4.4	2015-2022	-
Caterpillar	D3K 2	L4 4.4L 269cid C4.4	2012-2018	-
Caterpillar	D3K 2	L4 4.4L 269cid CaterpiLLar C4.4	2012-2018	-
Caterpillar	D3K2 LGP	L4 4.4L 269cid C4.4	2012-2023	-
Caterpillar	D3K2 LGP	L4 4.4L 269cid CaterpiLLar C4.4	2012-2023	-
Caterpillar	D3K2 XL	L4 4.4L 269cid C4.4	2012-2023	-
Caterpillar	D3K2 XL	L4 4.4L 269cid CaterpiLLar C4.4	2012-2023	-
Caterpillar	D4	L4 4.4L 269cid C4.4	2020-2022	-
Caterpillar	D4	L4 4.4L 269cid CaterpiLLar C4.4	2020-2022	-
Caterpillar	D4K2 LGP	L4 4.4L 269cid C4.4	2012-2020	-
Caterpillar	D4K2 LGP	L4 4.4L 269cid CaterpiLLar C4.4	2012-2020	-
Caterpillar	D4K2 XL LGP	L4 4.4L 269cid C4.4	2012-2020	-
Caterpillar	D4K2 XL LGP	L4 4.4L 269cid CaterpiLLar C4.4	2012-2020	-
Caterpillar	D4K2 XL	L4 4.4L 269cid C4.4	2012-2020	-
Caterpillar	D4K2 XL	L4 4.4L 269cid CaterpiLLar C4.4	2012-2020	-
Caterpillar	D5K2 LGP	L4 4.4L 269cid C4.4	2012-2019	-
Caterpillar	D5K2 LGP	L4 4.4L 269cid CaterpiLLar C4.4	2012-2019	-
Caterpillar	D5K2 XL LGP	L4 4.4L 269cid C4.4	2012-2019	-
Caterpillar	D5K2 XL LGP	L4 4.4L 269cid CaterpiLLar C4.4	2012-2019	-
Caterpillar	D5K2 XL	L4 4.4L 269cid C4.4	2012-2019	-
Caterpillar	D5K2 XL	L4 4.4L 269cid CaterpiLLar C4.4	2012-2019	-
Caterpillar	TH336C	L4 4.4L 269cid C4.4	2012-2017	-
Caterpillar	TH336C	L4 4.4L 269cid CaterpiLLar C4.4	2012-2017	-
Caterpillar	TH3510D	L4 3.4L 208cid C3.4B	2016-2024	-
Caterpillar	TH3510D	L4 3.4L 208cid CaterpiLLar C3.4B	2016-2024	-
Caterpillar	TH3510D	L4 4.4L 269cid CaterpiLLar C4.4	2016-2024	-
Caterpillar	TH357D	L4 3.4L 208cid C3.4	2017-2024	-
Caterpillar	TH357D	L4 3.4L 208cid CaterpiLLar C3.4	2017-2024	-
Caterpillar	TH357D	L4 4.4L 269cid CaterpiLLar C4.4	2017-2024	-
Caterpillar	TH408D	L4 3.4L 208cid C3.4	2017-2025	-
Caterpillar	TH408D	L4 3.4L 208cid CaterpiLLar C3.4	2017-2025	-
Caterpillar	TH408D	L4 4.4L 269cid CaterpiLLar C4.4	2017-2025	-
Caterpillar	TH514D	L4 3.4L 208cid C3.4B	2016-2025	-
Caterpillar	TH514D	L4 3.4L 208cid CaterpiLLar C3.4B	2016-2025	-
Caterpillar	TH514D	L4 4.4L 269cid CaterpiLLar C4.4	2016-2025	-
Caterpillar	TL1055D	L4 4.4L 269cid C4.4	2015-2025	-
Caterpillar	TL1055D	L4 4.4L 269cid CaterpiLLar C4.4	2015-2025	-
Caterpillar	TL1255D	L4 4.4L 269cid C4.4	2015-2024	-
Caterpillar	TL1255D	L4 4.4L 269cid CaterpiLLar C4.4	2015-2024	-
Caterpillar	TL642D	L4 3.4L 208cid C3.4B	2015-2024	-
Caterpillar	TL642D	L4 3.4L 208cid CaterpiLLar C3.4B	2015-2024	-
Caterpillar	TL642D	L4 4.4L 269cid CaterpiLLar C4.4	2015-2024	-
Caterpillar	TL943D	L4 3.4L 208cid C3.4B	2015-2024	-
Caterpillar	TL943D	L4 3.4L 208cid CaterpiLLar C3.4B	2015-2024	-
Caterpillar	TL943D	L4 4.4L 269cid CaterpiLLar C4.4	2015-2024	-

Product matching notes

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

How do I confirm CF-21406N fits?

Compare Part No, OE numbers, Lester Numbers, the application records, and the spec table. The page is organized around Case IH STX375, Case IH STX375QT, Case IH STX425 and related applications.

Which fields matter most?

Start with Voltage: 12V, Amperage: 120A, Rotation: CW, Regulator/Fan: IR/IF, then cross-check OE numbers Caterpillar 20R3599, 321-8928, 560-6102, Delco 8600376.

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 21406. That usually narrows the match quickly.

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