Alternators

EexcavaStart AL21X 12V 55A Alternator for Porsche 911 2.0L H6

Q: What numbers are documented for AL21X?

Primary Manufacturer Reference: AL21X. Cross-reference (fitment check required): 334-1585. Cross-reference (fitment check required): APR0036. Cross-reference (fitment check required): V101822. Cross-reference (fitment check required): 50374700. Cross-reference (fitment check required): 50374701. Cross-reference (fitment check required): 50374702. Cross-reference (fitment check required): 91160311800. Cross-reference (fitment check required): 400-40008. Cross-reference (fitment check required): 13208. Cross-reference (fitment check required): A6527. Cross-reference (fitment check required): LRA01356. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm AL21X before ordering?

Match the complete part number, compare the connector or mounting arrangement with your original unit and the recorded specifications, and confirm the machine or engine model and serial range. Send clear photos of the original unit when requesting a quote.

EexcavaStart packaging illustration · Not a photograph of this exact part. Exact-unit photo availability is not confirmed; send your original part number and unit photos with your inquiry.

OEM / referenceAL21X

Specification12V 55A Alternator; original-unit verification required

Catalog ID929290057

Product Type: Alternator
Product Brand: EexcavaStart
Primary Reference: AL21X
Equipment Scope: Porsche 911; exact catalog-listed engine/year rows only
Voltage: 12 V
Rated Output: 55 A
Regulator: Internal
Availability: Quote only; stock not confirmed
Image Disclosure: Brand packaging illustration; exact-unit photograph not confirmed

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Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.

Quotation details: MOQ, availability, lead time, item condition (new or remanufactured) and warranty coverage must be confirmed in your quotation before ordering.

Part-number relationships

Relationship	Reference family	Number
Primary Manufacturer Reference	BOSCH	AL21X
Cross-reference (fitment check required)	AC Delco Tools	334-1585
Cross-reference (fitment check required)	Arrowhead	APR0036
Cross-reference (fitment check required)	Arrowhead	V101822
Cross-reference (fitment check required)	Hatz	50374700
Cross-reference (fitment check required)	Hatz	50374701
Cross-reference (fitment check required)	Hatz	50374702
Cross-reference (fitment check required)	Hatz	91160311800
Cross-reference (fitment check required)	J&N Electrical Products	400-40008
Cross-reference (fitment check required)	Lester	13208
Cross-reference (fitment check required)	Lucas Electric	A6527
Cross-reference (fitment check required)	Lucas Electric	LRA01356
Cross-reference (fitment check required)	Paris Rhone	101822
Cross-reference (fitment check required)	Paris Rhone	A13N281
Cross-reference (fitment check required)	Paris Rhone	A13N52
Cross-reference (fitment check required)	Porsche	901-603-118-00
Cross-reference (fitment check required)	Porsche	911-603-106-52
Cross-reference (fitment check required)	Porsche	911-603-120-00
Cross-reference (fitment check required)	Sev Marchal	71314202
Cross-reference (fitment check required)	Valeo	2101822
Cross-reference (fitment check required)	Valeo	2541768
Cross-reference (fitment check required)	Valeo	436496

Product fitment guide

Part numbers and compatible models

Quickly compare the reference number and recorded machine applications. Use photos of your original unit and the checklist before ordering.

Part identification

Reference numbers

Primary number

AL21X

Cross-reference (fitment check required)

334-1585
APR0036
V101822
50374700
50374701
50374702
91160311800
400-40008
13208
A6527
LRA01356
101822
A13N281
A13N52
901-603-118-00
911-603-106-52
911-603-120-00
71314202
2101822
2541768
436496

Formatting aliases are the same number written differently. Cross-references require a specification and fitment check; they do not by themselves confirm direct interchangeability. Related assemblies and remanufactured numbers are separate relationship types.

Product summary

12V 55A Alternator; original-unit verification required

Category: Alternators
Catalog ID: 929290057
Illustration views: 1

Before ordering

Confirm these details

Confirm voltage and rated amperage against the original alternator label.
Compare mounting ears, pulley type and pulley-groove count.
Check plug shape, terminal position and regulator connection.
Verify the engine model and machine serial range before ordering.

Machine fitment

Compatible model references

5 model references

Porsche 911 1965 / 1991cc 2.0L H6: Catalog-listed; verify original unit number, mounting, pulley and electrical connections
Porsche 911 1966 / 1991cc 2.0L H6: Catalog-listed; verify original unit number, mounting, pulley and electrical connections
Porsche 911 1967 / 1991cc 2.0L H6: Catalog-listed; verify original unit number, mounting, pulley and electrical connections
Porsche 911 1968 / 1991cc 2.0L H6: Catalog-listed; verify original unit number, mounting, pulley and electrical connections
Porsche 911 1969 / 1991cc 2.0L H6: Catalog-listed; verify original unit number, mounting, pulley and electrical connections

Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.

Quick fitment answers

Common questions about AL21X

Which machines use AL21X?

Recorded compatible model references include Porsche 911 1965 / 1991cc 2.0L H6: Catalog-listed; verify original unit number, mounting, pulley and electrical connections, Porsche 911 1966 / 1991cc 2.0L H6: Catalog-listed; verify original unit number, mounting, pulley and electrical connections, Porsche 911 1967 / 1991cc 2.0L H6: Catalog-listed; verify original unit number, mounting, pulley and electrical connections, Porsche 911 1968 / 1991cc 2.0L H6: Catalog-listed; verify original unit number, mounting, pulley and electrical connections, Porsche 911 1969 / 1991cc 2.0L H6: Catalog-listed; verify original unit number, mounting, pulley and electrical connections. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for AL21X?

Cross-references are listed in the relationship table above. Compare specifications and the original unit before treating a reference as interchangeable.

How do I confirm AL21X before ordering?

Confirm voltage and rated amperage against the original alternator label. Compare mounting ears, pulley type and pulley-groove count. Check plug shape, terminal position and regulator connection. Send clear photos of the original unit and connector layout when requesting a quote.