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Excavator Starter Motors

32B66-00301 12V 3.0kW 10T Starter Motor for CAT DP40K DP40KL

OEM / reference32B66-00301
SpecificationStarter Motor
Catalog ID53816053

Starter Motor identified by primary reference 32B66-00301. Catalog-confirmed configuration: 12V, 3.0kW, 10T. The cited technical sources record 50 application references. Confirm the complete number, connector or mounting arrangement, and machine serial range before ordering.

Product Type
Starter Motor
Product Brand
EexcavaStart
Voltage
12V 10T 3KW
Technical Specification
3.0 kW/12 Volt, CW, 10-Tooth Pinion
Design
PLGR
Voltage
12
Rated Power
3.0
Rotation
CW
Pinion Teeth
10
Condition
New replacement part

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

Part-number relationships

RelationshipReference familyNumber
Primary Part NumberSource catalog32B66-00301
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration30831N
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration103-042
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration103-5274
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration103-5274A
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration10438323
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration108278
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration11438323
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration150.923.102.130
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration150.923.102.370
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration20437503OE
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration243-30105
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration256039
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration256039M
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration30831
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration32B66-20300
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration410-48241
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configuration6035305.1
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationACS-702
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationCST35305GS
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationM008T55471
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationM008T55472
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationM008T55473
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationM008T55473AM
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationM8T55471
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationM8T55472
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationM8T55473
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationM8T55473AM
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationMITM8T55471
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationMITM8T55473
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationRNLM8T55471
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationS-80553
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationS5191
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationSMT0425
Catalog Cross-Reference - Verify ConfigurationRecorded in the cited catalog family; confirm electrical, mounting and application configurationSTR71295

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
  • 32B66-00301
Other documented relationship
  • 30831N
  • 103-042
  • 103-5274
  • 103-5274A
  • 10438323
  • 108278
  • 11438323
  • 150.923.102.130
  • 150.923.102.370
  • 20437503OE
  • 243-30105
  • 256039
  • 256039M
  • 30831
  • 32B66-20300
  • 410-48241
  • 6035305.1
  • ACS-702
  • CST35305GS
  • M008T55471
  • M008T55472
  • M008T55473
  • M008T55473AM
  • M8T55471
  • M8T55472
  • M8T55473
  • M8T55473AM
  • MITM8T55471
  • MITM8T55473
  • RNLM8T55471
  • S-80553
  • S5191
  • SMT0425
  • STR71295

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

Product summary

Starter Motor

Category
Excavator Starter Motors
Catalog ID
53816053
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

50 model references

  • Recorded application: Make: Caterpillar · Model: DP40K · Year: 1996-2015 · Engine: L6 4.5L 274cid Mitsubishi S6E
  • Recorded application: Make: Caterpillar · Model: DP40K · Year: 1996-2015 · Engine: L6 4.5L 274cid S6E
  • Recorded application: Make: Caterpillar · Model: DP40KL · Year: 2009-2015 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Caterpillar · Model: DP40KL · Year: 2009-2015 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Caterpillar · Model: DP40N · Year: 2005-2015 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Caterpillar · Model: DP40N · Year: 2005-2015 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Caterpillar · Model: DP45K · Year: 1996-2015 · Engine: L6 4.5L 274cid Mitsubishi S6E2
  • Recorded application: Make: Caterpillar · Model: DP45K · Year: 1996-2015 · Engine: L6 4.5L 274cid S6E2
  • Recorded application: Make: Caterpillar · Model: DP45N · Year: 2005-2015 · Engine: L6 4.5L 274cid Mitsubishi S6S2
  • Recorded application: Make: Caterpillar · Model: DP45N · Year: 2005-2015 · Engine: L6 4.5L 274cid S6S2
  • Recorded application: Make: Caterpillar · Model: DP50CN · Year: 2012-2015 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Caterpillar · Model: DP50CN · Year: 2012-2015 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Caterpillar · Model: DP50K · Year: 1996-2015 · Engine: L6 4.5L 274cid Mitsubishi S6E2
  • Recorded application: Make: Caterpillar · Model: DP50K · Year: 1996-2015 · Engine: L6 4.5L 274cid S6E2
  • Recorded application: Make: Caterpillar · Model: DP55N · Year: 2010-2015 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Caterpillar · Model: DP55N · Year: 2010-2015 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Caterpillar · Model: DP70 · Year: 1996-2015 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Caterpillar · Model: DP70 · Year: 1996-2015 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Caterpillar · Model: PD10000 · Year: 2011-2013 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Caterpillar · Model: PD10000 · Year: 2011-2013 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Caterpillar · Model: PD11000 · Year: 2011-2013 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Caterpillar · Model: PD11000 · Year: 2011-2013 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Caterpillar · Model: PD12000 · Year: 2011-2013 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Caterpillar · Model: PD12000 · Year: 2011-2013 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Caterpillar · Model: PD8000 · Year: 2011-2012 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Caterpillar · Model: PD8000 · Year: 2011-2012 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Caterpillar · Model: PD9000 · Year: 2011-2013 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Caterpillar · Model: PD9000 · Year: 2011-2013 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Mitsubishi · Model: FD40K · Year: 2010-2014 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Mitsubishi · Model: FD40K · Year: 2010-2014 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Mitsubishi · Model: FD40N · Year: 2005-2015 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Mitsubishi · Model: FD40N · Year: 2005-2015 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Mitsubishi · Model: FD45K · Year: 2000-2011 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Mitsubishi · Model: FD45K · Year: 2000-2011 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Mitsubishi · Model: FD45N · Year: 2010-2016 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Mitsubishi · Model: FD45N · Year: 2010-2016 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Mitsubishi · Model: FD50CN · Year: 2010-2013 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Mitsubishi · Model: FD50CN · Year: 2010-2013 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Mitsubishi · Model: FD50K · Year: 2000-2003 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Mitsubishi · Model: FD50K · Year: 2000-2003 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Mitsubishi · Model: FD50N · Year: 2010-2016 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Mitsubishi · Model: FD50N · Year: 2010-2016 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: Mitsubishi · Model: FD55N · Year: 2006-2016 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: Mitsubishi · Model: FD55N · Year: 2006-2016 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: TCM Equipment · Model: FD35T9 · Year: 2005-2011 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: TCM Equipment · Model: FD35T9 · Year: 2005-2020 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: TCM Equipment · Model: FD40T9 · Year: 2005-2011 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: TCM Equipment · Model: FD40T9 · Year: 2005-2020 · Engine: L6 4.5L 274cid Mitsubishi S6S
  • Recorded application: Make: TCM Equipment · Model: FD45T9 · Year: 2005-2011 · Engine: L6 4.5L 274cid S6S
  • Recorded application: Make: TCM Equipment · Model: FD45T9 · Year: 2005-2020 · Engine: L6 4.5L 274cid Mitsubishi S6S

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 32B66-00301

Which machines use 32B66-00301?

Recorded compatible model references include Recorded application: Make: Caterpillar · Model: DP40K · Year: 1996-2015 · Engine: L6 4.5L 274cid Mitsubishi S6E, Recorded application: Make: Caterpillar · Model: DP40K · Year: 1996-2015 · Engine: L6 4.5L 274cid S6E, Recorded application: Make: Caterpillar · Model: DP40KL · Year: 2009-2015 · Engine: L6 4.5L 274cid Mitsubishi S6S, Recorded application: Make: Caterpillar · Model: DP40KL · Year: 2009-2015 · Engine: L6 4.5L 274cid S6S, Recorded application: Make: Caterpillar · Model: DP40N · Year: 2005-2015 · Engine: L6 4.5L 274cid Mitsubishi S6S, Recorded application: Make: Caterpillar · Model: DP40N · Year: 2005-2015 · Engine: L6 4.5L 274cid S6S, Recorded application: Make: Caterpillar · Model: DP45K · Year: 1996-2015 · Engine: L6 4.5L 274cid Mitsubishi S6E2, Recorded application: Make: Caterpillar · Model: DP45K · Year: 1996-2015 · Engine: L6 4.5L 274cid S6E2 and 42 additional models shown on this page. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 32B66-00301?

No alternate number is listed for 32B66-00301. Send the original nameplate for an alternate-number check.

How do I confirm 32B66-00301 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.

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