Alternators

EexcavaStart 8400056 12V 145A Alternator for Chevrolet C Series 6.6L V8 DIESEL

Q: What numbers are documented for 8400056?

Primary Manufacturer Reference: 8400056. Cross-reference (fitment check required): ADR0372. Cross-reference (fitment check required): 113776. Cross-reference (fitment check required): 8400115. Cross-reference (fitment check required): 8400248. Cross-reference (fitment check required): 15288861. Cross-reference (fitment check required): 15845337. Cross-reference (fitment check required): 15845338. Cross-reference (fitment check required): 400-12201. Cross-reference (fitment check required): 8299. Cross-reference (fitment check required): 8489. Cross-reference (fitment check required): 1-2991-01DR. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 8400056 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 / reference8400056

Specification12V 145A Alternator; original-unit verification required

Catalog ID929290101

Product Type: Alternator
Product Brand: EexcavaStart
Primary Reference: 8400056
Equipment Scope: Chevrolet C Series; exact catalog-listed engine/year rows only
Voltage: 12 V
Rated Output: 145 A
Rotation: CW
Regulator: Internal
Pulley: 6 grooves; clutch pulley
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	DELCO	8400056
Cross-reference (fitment check required)	ARROWHEAD	ADR0372
Cross-reference (fitment check required)	CARGO	113776
Cross-reference (fitment check required)	DELCO	8400115
Cross-reference (fitment check required)	DELCO	8400248
Cross-reference (fitment check required)	GENERAL MOTORS	15288861
Cross-reference (fitment check required)	GENERAL MOTORS	15845337
Cross-reference (fitment check required)	GENERAL MOTORS	15845338
Cross-reference (fitment check required)	J&N Electrical Products	400-12201
Cross-reference (fitment check required)	LESTER	8299
Cross-reference (fitment check required)	LESTER	8489
Cross-reference (fitment check required)	WAI	1-2991-01DR
Cross-reference (fitment check required)	WAI	8489N

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

8400056

Cross-reference (fitment check required)

ADR0372
113776
8400115
8400248
15288861
15845337
15845338
400-12201
8299
8489
1-2991-01DR
8489N

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 145A Alternator; original-unit verification required

Category: Alternators
Catalog ID: 929290101
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

2 model references

Chevrolet C Series 2006 / 6600cc 6.6L V8 DIESEL: Catalog-listed; verify original unit number, mounting, pulley and electrical connections
Chevrolet C Series 2007 / 6600cc 6.6L V8 DIESEL: 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 8400056

Which machines use 8400056?

Recorded compatible model references include Chevrolet C Series 2006 / 6600cc 6.6L V8 DIESEL: Catalog-listed; verify original unit number, mounting, pulley and electrical connections, Chevrolet C Series 2007 / 6600cc 6.6L V8 DIESEL: 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 8400056?

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 8400056 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.