Alternators

81863039 55A Alternator for Ford New Holland Tractors

Q: What numbers are documented for 81863039?

Primary Equipment Part Number: 81863039. Related Equipment Number: E7NN10B376AB. Related Equipment Number: E7NN10B376BB. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 81863039 before ordering?

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

81863039 55A Alternator for Ford New Holland Tractors, OEM/reference 81863039, 55A Alternator, product view 1

1 / 2

2 product photos · Swipe on mobile, or hover and select a thumbnail.

OEM / reference81863039

Specification55A Alternator

Catalog ID69535481

Product Type: Alternator
Rated Current: 55 A
Voltage: Confirm original label; replacement catalogs commonly list 12/14V systems
Upgrade Warning: 65A/70A aftermarket units are not treated as identical original output

Send email inquiry Ask on WhatsApp Return to catalog

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 Equipment Part Number	Ford/New Holland alternator reference	81863039
Related Equipment Number	Ford engineering reference	E7NN10B376AB
Related Equipment Number	Ford engineering reference	E7NN10B376BB

Product fitment guide

Part numbers and compatible models

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

Part identification

Reference numbers

Primary number

81863039

Related assembly

E7NN10B376AB
E7NN10B376BB

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

55A Alternator

Category: Alternators
Catalog ID: 69535481
Photo views: 2

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

3 model references

Ford/New Holland tractors: 3600 / 3610 / 3900 / 3910 / 4110 / 4600SU / 7910 / 8210
New Holland catalog applications: 5610s, 6610s, 6810s, 7610s, tb100, tb110, tb120, tb80, tb85, tb90
Fitment limitation: Confirm OE label, output, pulley, connector, mounting and tractor serial

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 81863039

Which machines use 81863039?

Recorded compatible model references include Ford/New Holland tractors: 3600 / 3610 / 3900 / 3910 / 4110 / 4600SU / 7910 / 8210, New Holland catalog applications: 5610s, 6610s, 6810s, 7610s, tb100, tb110, tb120, tb80, tb85, tb90, Fitment limitation: Confirm OE label, output, pulley, connector, mounting and tractor serial. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 81863039?

Related assembly numbers (not direct interchanges): E7NN10B376AB, E7NN10B376BB.

How do I confirm 81863039 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.

Continue comparing verified references from the same system.

Browse this category