Alternators

CF-21688N

Name: CF-21688N Passenger Vehicle Alternator
Brand: Crankvia
SKU: 21688N

CF-21688N alternator for BMW - Europe 518d, BMW - Europe 620d xDrive, BMW - Europe 620d and related applications (12V / 250A / S6).

Brand

Specification

Voltage	12V
Amperage	250A
Rotation	CW
Pulley Class	S6
Regulator/Fan	IR/IF

Features

Part No	CF-21688N
MFR	DENSO
Part Type	Alternator

Part Number Cross-Reference

Lester Numbers
BMW
Denso
Toyota

Product Advantages

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

Fitment-first matching

CF-21688N 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 DENSO and replacement references including 21688 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-21688N

Records

Makes

Models

Year range

2018-2026

Make	Model	Engine	Year	Note
BMW - Europe	518d	2.0L 1995ccm	2018-2019	-
BMW - Europe	620d xDrive	2.0L 1995ccm	2018-2019	-
BMW - Europe	620d	2.0L 1995ccm	2018-2019	-
BMW - Europe	X5	3.0L 2998ccm	2018	-
BMW	230i xDrive	L4 2.0L 1998cc 122cid	2023-2026	-
BMW	230i	L4 2.0L 1998cc 122cid	2022-2026	-
BMW	330i xDrive	L4 2.0L 1998cc 122cid	2019-2024	-
BMW	330i	L4 2.0L 1998cc 122cid	2019-2024	-
BMW	430i Gran Coupe	L4 2.0L 1998cc 122cid	2022-2024	-
BMW	430i xDrive Gran Coupe	L4 2.0L 1998cc 122cid	2023-2024	-
BMW	430i xDrive	L4 2.0L 1998cc 122cid	2021-2024	-
BMW	430i	L4 2.0L 1998cc 122cid	2021-2024	-
BMW	530i xDrive	L4 2.0L 1998cc 122cid	2021-2023	-
BMW	530i	L4 2.0L 1998cc 122cid	2021-2023	-
BMW	740i xDrive	L6 3.0L 2998cc	2019-2022	-
BMW	740i	L6 3.0L 2998cc	2019-2023	-
BMW	840i Gran Coupe	L6 3.0L 2998cc	2020-2026	-
BMW	840i xDrive Gran Coupe	L6 3.0L 2998cc	2020-2026	-
BMW	840i xDrive	L6 3.0L 2998cc	2020-2026	-
BMW	840i	L6 3.0L 2998cc	2020-2026	-
BMW	M240i xDrive	L6 3.0L 2998cc	2022-2026	-
BMW	M240i	L6 3.0L 2998cc	2023-2026	-
BMW	M340i xDrive	L6 3.0L 2998cc	2020-2024	-
BMW	M340i	L6 3.0L 2998cc	2020-2024	-
BMW	X3	L6 3.0L 2998cc	2020-2022	-
BMW	X3	L4 2.0L 1998cc 122cid	2020-2025	-
BMW	X4	L6 3.0L 2998cc	2020-2022	-
BMW	X4	L4 2.0L 1998cc 122cid	2020-2025	-
BMW	X5	L6 3.0L 2998cc	2019-2023	-
BMW	X6	L6 3.0L 2998cc	2020-2023	-
BMW	X7	L6 3.0L 2998cc	2019-2022	-
BMW	Z4	L4 2.0L 1998cc 122cid	2019-2026	-
BMW	Z4	L6 3.0L 2998cc	2020-2026	-
Toyota	GR Supra	L6 3.0L 2998cc GAS; B58B30M; Turbocharged	2020	-
Toyota	GR Supra	L6 3.0L 2998cc GAS; B58B30O1; Turbocharged	2021-2022	-
Toyota	GR Supra	L4 2.0L 1998cc 122cid	2021-2024	-
Toyota	GR Supra	L6 3.0L 2998cc	2023-2026	-

Product matching notes

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

How do I confirm CF-21688N fits?

Compare Part No, OE numbers, Lester Numbers, the application records, and the spec table. The page is organized around BMW - Europe 518d, BMW - Europe 620d xDrive, BMW - Europe 620d and related applications.

Which fields matter most?

Start with Voltage: 12V, Amperage: 250A, Rotation: CW, Pulley Class: S6, then cross-check OE numbers BMW 12 31 8 689 632, 12-31-8-634-167, 12-31-8-689-832, 8634167.

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 21688. That usually narrows the match quickly.

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