Excavator Starter Motors

2873K632 12V 10T Starter Motor for Perkins 1104D-44TA 1004.4

Q: What numbers are documented for 2873K632?

Primary Part Number: 2873K632. Published Replacement Family - Verify Configuration: 2873K404. Published Replacement Family - Verify Configuration: 2873K621. Published Aftermarket Reference - Verify Configuration: 18941N. Published Aftermarket Reference - Verify Configuration: S4029. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 2873K632 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.

2873K632 12V 10T Starter Motor for Perkins 1104D-44TA 1004.4, OEM/reference 2873K632, 12V 10T Starter Motor, product view 1

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OEM / reference2873K632

Specification12V 10T Starter Motor

Catalog ID72160242

12V clockwise starter motor identified by Perkins reference 2873K632. Multiple exact-number catalogs publish a 10-tooth pinion, three-hole mounting and applications for Perkins 1104D-44TA and 1004.4/1004.40T engines. Four exact owned photographs show the same starter, flange, pinion housing and terminal configuration. Replacement catalogs publish conflicting 3.0, 3.2 and 4.0 kW ratings, so output is deliberately not asserted as a verified interchange specification. Confirm 2873K632, the original nameplate, pinion, rotation, flange and terminal layout before ordering.

Product Type: Starter motor
Published Voltage: 12 VDC
Published Pinion Teeth: 10
Published Rotation: Clockwise
Published Mounting Holes: 3
Rated Output: Verify original nameplate; replacement catalogs conflict
Condition: New replacement part

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

Part-number relationships

Relationship	Reference family	Number
Primary Part Number	Exact Perkins starter-motor identity	2873K632
Published Replacement Family - Verify Configuration	Cataloged replacement; not asserted as unconditional interchange	2873K404
Published Replacement Family - Verify Configuration	Cataloged replacement; not asserted as unconditional interchange	2873K621
Published Aftermarket Reference - Verify Configuration	Cataloged replacement reference	18941N
Published Aftermarket Reference - Verify Configuration	Cataloged replacement reference	S4029

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

2873K632

Other documented relationship

2873K404
2873K621
18941N
S4029

Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

12V 10T Starter Motor

Category: Excavator Starter Motors
Catalog ID: 72160242
Photo views: 4

Before ordering

Confirm these details

Confirm voltage and power rating against the original starter nameplate.
Compare mounting-hole pattern, flange position and overall body orientation.
Confirm pinion tooth count and rotation where those values are specified.
Verify the engine model and machine serial range before ordering.

Machine fitment

Compatible model references

3 model references

Published engine family: Perkins 1104D-44TA
Additional published engines: Perkins 1004.4 / 1004.40T
Fitment limitation: Confirm nameplate, 10-tooth pinion, clockwise rotation, three-hole flange and terminals

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 2873K632

Which machines use 2873K632?

Recorded compatible model references include Published engine family: Perkins 1104D-44TA, Additional published engines: Perkins 1004.4 / 1004.40T, Fitment limitation: Confirm nameplate, 10-tooth pinion, clockwise rotation, three-hole flange and terminals. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 2873K632?

No alternate number is listed for 2873K632. Send the original nameplate for an alternate-number check.

How do I confirm 2873K632 before ordering?

Confirm voltage and power rating against the original starter nameplate. Compare mounting-hole pattern, flange position and overall body orientation. Confirm pinion tooth count and rotation where those values are specified. Send clear photos of the original unit and connector layout when requesting a quote.