Alternators

CF-21123N

Name: CF-21123N Passenger Vehicle Alternator
Brand: Crankvia
SKU: 21123N

CF-21123N alternator for Audi A3 Quattro, Audi A3, Audi Q3 and related applications (12V / 150A / SD6).

Brand

Specification

Voltage	12V
Amperage	150A
Rotation	CW
Pulley Class	SD6
Regulator/Fan	IR/IF

Features

Part No	CF-21123N
MFR	BOSCH
Part Type	Alternator

Part Number Cross-Reference

Lester Numbers
Audi, Volkswagen
06K
Bosch

Product Advantages

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

Fitment-first matching

CF-21123N 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 BOSCH and replacement references including 21123 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-21123N

Records

Makes

Models

Year range

2016-2021

Make	Model	Engine	Year	Note
Audi	A3 Quattro	L4 2.0L 1984cc 121cid	2017-2020	-
Audi	A3	L4 2.0L 1984cc 121cid	2017-2020	-
Audi	Q3	L4 2.0L 1984cc 121cid	2019-2020	-
Audi	S3	L4 2.0L 1984cc 121cid	2017-2020	-
Volkswagen	Atlas Cross Sport	L4 2.0L 1984cc 121cid	2020	-
Volkswagen	Atlas	L4 2.0L 1984cc 121cid	2018-2020	-
Volkswagen	Golf Alltrack	L4 1.8L 1798cc 110cid	2017-2019	-
Volkswagen	Golf R	L4 2.0L 1984cc 121cid	2016-2017	-
Volkswagen	Golf R	L4 2.0L 1984cc 121cid	2019	-
Volkswagen	Golf SportWagen	L4 1.8L 1798cc 110cid	2016-2019	-
Volkswagen	Golf	L4 1.8L 1798cc 110cid	2016-2018	-
Volkswagen	GTI	L4 2.0L 1984cc 121cid	2016-2021	-
Volkswagen	Jetta	L4 2.0L 1984cc 121cid	2019-2020	-
Volkswagen	Tiguan	L4 2.0L 1984cc 121cid	2018-2020	-

Product matching notes

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

How do I confirm CF-21123N fits?

Compare Part No, OE numbers, Lester Numbers, the application records, and the spec table. The page is organized around Audi A3 Quattro, Audi A3, Audi Q3 and related applications.

Which fields matter most?

Start with Voltage: 12V, Amperage: 150A, Rotation: CW, Pulley Class: SD6, then cross-check OE numbers Audi, Volkswagen 06K 903 023 D, 06K 903 023 DX, Bosch 0 125 716 009.

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 21123. That usually narrows the match quickly.

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