Excavator Alternators

11203565 12V 120A Alternator for Challenger MT445B-T3 MT455B-T3 Dyna-4

Q: What numbers are documented for 11203565?

Primary Part Number: 11203565. Catalog Cross-Reference - Verify Configuration: 20723N. Same-number Formatting Variant: 11.203.565. Catalog Cross-Reference - Verify Configuration: 11.203.828. Catalog Cross-Reference - Verify Configuration: 114808. Catalog Cross-Reference - Verify Configuration: 137291. Catalog Cross-Reference - Verify Configuration: 173-32106. Catalog Cross-Reference - Verify Configuration: 20723. Catalog Cross-Reference - Verify Configuration: 282-668. Catalog Cross-Reference - Verify Configuration: 282-668A. Catalog Cross-Reference - Verify Configuration: 4287 014 F1. Catalog Cross-Reference - Verify Configuration: 4287 014 M2. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 11203565 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.

11203565 12V 120A Alternator for Challenger MT445B-T3 MT455B-T3 Dyna-4, OEM/reference 11203565, Alternator, product view 1

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OEM / reference11203565

SpecificationAlternator

Catalog ID53634483

Alternator identified by primary reference 11203565. Catalog-confirmed configuration: 12V, 120A. The cited technical sources record 147 application references. Confirm the complete number, connector or mounting arrangement, and machine serial range before ordering.

Product Type: Alternator
Product Brand: EexcavaStart
Voltage: 12V 120A
Technical Specification: 120 Amp/12 Volt, CW, 10-Groove Pulley
Design: IR/IF
Voltage: 12
Amperage: 120
Rotation: CW
Pulley Class: S10
Pulley Note: 54MM OD
Condition: New replacement part

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Part-number relationships

Relationship	Reference family	Number
Primary Part Number	Source catalog	11203565
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	20723N
Same-number Formatting Variant	Source catalog	11.203.565
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	11.203.828
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	114808
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	137291
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	173-32106
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	20723
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	282-668
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	282-668A
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	4287 014 F1
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	4287 014 M2
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	4287 014 M3
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	4287 014 M4
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	4287014M1
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	554402
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	554402RIM
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	565.502.120.090
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	585.501.200
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	655.504.120.090
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	A-6604
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	AAK5711
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	AAK5761
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	AAN5746
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	AIA0036
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	IA 1320
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	MAHMG182
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	MG 182
Catalog Cross-Reference - Verify Configuration	Recorded in the cited catalog family; confirm electrical, mounting and application configuration	MG 679

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

11203565

Formatting alias

11.203.565

Other documented relationship

20723N
11.203.828
114808
137291
173-32106
20723
282-668
282-668A
4287 014 F1
4287 014 M2
4287 014 M3
4287 014 M4
4287014M1
554402
554402RIM
565.502.120.090
585.501.200
655.504.120.090
A-6604
AAK5711
AAK5761
AAN5746
AIA0036
IA 1320
MAHMG182
MG 182
MG 679

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

Product summary

Alternator

Category: Excavator Alternators
Catalog ID: 53634483
Photo views: 4

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

80 model references

Recorded application: Make: Challenger · Model: MT445B-T3 · Year: 2008-2013 · Engine: L4 4.4L 269cid C4.4
Recorded application: Make: Challenger · Model: MT445B-T3 · Year: 2008-2013 · Engine: L4 4.4L 269cid CaterpiLLar C4.4
Recorded application: Make: Challenger · Model: MT455B-T3 Dyna-4 · Year: 2008-2013 · Engine: L4 4.4L 269cid C4.4
Recorded application: Make: Challenger · Model: MT455B-T3 Dyna-4 · Year: 2008-2013 · Engine: L4 4.4L 269cid CaterpiLLar C4.4
Recorded application: Make: Challenger · Model: MT465B-T3 Dyna-4 · Year: 2008-2013 · Engine: L4 4.4L 269cid C4.4
Recorded application: Make: Challenger · Model: MT465B-T3 Dyna-4 · Year: 2008-2013 · Engine: L4 4.4L 269cid CaterpiLLar C4.4
Recorded application: Make: Challenger · Model: MT515D Dyna-4 · Year: 2013-2014 · Engine: L6 6.6L 403cid
Recorded application: Make: Challenger · Model: MT515D Dyna-4 · Year: 2013-2014 · Engine: L6 6.6L 403cid AGCO
Recorded application: Make: Challenger · Model: MT525D Dyna-4 · Year: 2013-2014 · Engine: L6 6.6L 403cid
Recorded application: Make: Challenger · Model: MT525D Dyna-4 · Year: 2013-2014 · Engine: L6 6.6L 403cid AGCO
Recorded application: Make: Challenger · Model: MT525D Dyna-6 · Year: 2013-2014 · Engine: L6 6.6L 403cid
Recorded application: Make: Challenger · Model: MT525D Dyna-6 · Year: 2013-2014 · Engine: L6 6.6L 403cid AGCO
Recorded application: Make: Challenger · Model: MT525D Dyna-VT · Year: 2013-2014 · Engine: L6 6.6L 403cid
Recorded application: Make: Challenger · Model: MT525D Dyna-VT · Year: 2013-2014 · Engine: L6 6.6L 403cid AGCO
Recorded application: Make: Challenger · Model: MT535D Dyna-6 · Year: 2013-2014 · Engine: L6 6.6L 403cid
Recorded application: Make: Challenger · Model: MT535D Dyna-6 · Year: 2013-2014 · Engine: L6 6.6L 403cid AGCO
Recorded application: Make: Challenger · Model: MT535D Dyna-VT · Year: 2013-2014 · Engine: L6 6.6L 403cid
Recorded application: Make: Challenger · Model: MT535D Dyna-VT · Year: 2013-2014 · Engine: L6 6.6L 403cid AGCO
Recorded application: Make: Challenger · Model: MT545D Dyna-6 · Year: 2013-2014 · Engine: L6 6.6L 403cid
Recorded application: Make: Challenger · Model: MT545D Dyna-6 · Year: 2013-2014 · Engine: L6 6.6L 403cid AGCO
Recorded application: Make: Challenger · Model: MT545D Dyna-VT · Year: 2013-2014 · Engine: L6 6.6L 403cid
Recorded application: Make: Challenger · Model: MT545D Dyna-VT · Year: 2013-2014 · Engine: L6 6.6L 403cid AGCO
Recorded application: Make: Challenger · Model: MT555D CVT · Year: 2013-2014 · Engine: L6 6.6L 403cid
Recorded application: Make: Challenger · Model: MT555D CVT · Year: 2013-2014 · Engine: L6 6.6L 403cid AGCO
Recorded application: Make: Challenger · Model: MT555D Dyna-6 · Year: 2013-2014 · Engine: L6 6.6L 403cid
Recorded application: Make: Challenger · Model: MT555D Dyna-6 · Year: 2013-2014 · Engine: L6 6.6L 403cid AGCO
Recorded application: Make: Challenger · Model: MT565D CVT · Year: 2013-2014 · Engine: L6 6.6L 403cid
Recorded application: Make: Challenger · Model: MT565D CVT · Year: 2013-2014 · Engine: L6 6.6L 403cid AGCO
Recorded application: Make: Challenger · Model: MT565D Dyna-6 · Year: 2013-2014 · Engine: L6 6.6L 403cid
Recorded application: Make: Challenger · Model: MT565D Dyna-6 · Year: 2013-2014 · Engine: L6 6.6L 403cid AGCO
Recorded application: Make: Challenger · Model: MT575D CVT · Year: 2012-2014 · Engine: L6 7.4L 449cid
Recorded application: Make: Challenger · Model: MT575D CVT · Year: 2012-2014 · Engine: L6 7.4L 449cid AGCO
Recorded application: Make: Challenger · Model: MT575D Dyna-6 · Year: 2012-2014 · Engine: L6 7.4L 449cid
Recorded application: Make: Challenger · Model: MT575D Dyna-6 · Year: 2012-2014 · Engine: L6 7.4L 449cid AGCO
Recorded application: Make: Challenger · Model: MT585D CVT · Year: 2012-2014 · Engine: L6 7.4L 449cid
Recorded application: Make: Challenger · Model: MT585D CVT · Year: 2012-2014 · Engine: L6 7.4L 449cid AGCO
Recorded application: Make: Challenger · Model: MT585D Dyna-6 · Year: 2012-2014 · Engine: L6 7.4L 449cid
Recorded application: Make: Challenger · Model: MT585D Dyna-6 · Year: 2012-2014 · Engine: L6 7.4L 449cid AGCO
Recorded application: Make: Challenger · Model: MT645C · Year: 2009-2010 · Engine: L6 8.4L 513cid 84CTA
Recorded application: Make: Challenger · Model: MT645C · Year: 2009-2010 · Engine: L6 8.4L 513cid Sisu 84CTA
Recorded application: Make: Challenger · Model: MT645D T4I · Year: 2011-2013 · Engine: L6 8.4L 513cid 84AWI
Recorded application: Make: Challenger · Model: MT645D T4I · Year: 2011-2013 · Engine: L6 8.4L 513cid Sisu 84AWI
Recorded application: Make: Challenger · Model: MT655C T3 CVT · Year: 2009-2010 · Engine: L6 8.4L 513cid 84CTA
Recorded application: Make: Challenger · Model: MT655C T3 CVT · Year: 2009-2010 · Engine: L6 8.4L 513cid Sisu 84CTA
Recorded application: Make: Challenger · Model: MT655D T4I · Year: 2011-2013 · Engine: L6 8.4L 513cid 84AWI
Recorded application: Make: Challenger · Model: MT655D T4I · Year: 2011-2013 · Engine: L6 8.4L 513cid Sisu 84AWI
Recorded application: Make: Challenger · Model: MT665C T3 / T2 CVT · Year: 2009-2010 · Engine: L6 8.4L 513cid 84CTA
Recorded application: Make: Challenger · Model: MT665C T3 / T2 CVT · Year: 2009-2010 · Engine: L6 8.4L 513cid Sisu 84CTA
Recorded application: Make: Challenger · Model: MT665D T4I / T2 · Year: 2011-2013 · Engine: L6 8.4L 513cid 84AWI
Recorded application: Make: Challenger · Model: MT665D T4I / T2 · Year: 2011-2013 · Engine: L6 8.4L 513cid Sisu 84AWI
Recorded application: Make: Challenger · Model: MT675C T3 CVT · Year: 2009-2010 · Engine: L6 8.4L 513cid 84CTA
Recorded application: Make: Challenger · Model: MT675C T3 CVT · Year: 2009-2010 · Engine: L6 8.4L 513cid Sisu 84CTA
Recorded application: Make: Challenger · Model: MT675D T4I · Year: 2011-2013 · Engine: L6 8.4L 513cid 84AWI
Recorded application: Make: Challenger · Model: MT675D T4I · Year: 2011-2013 · Engine: L6 8.4L 513cid Sisu 84AWI
Recorded application: Make: Challenger · Model: MT685D T4I / T2 · Year: 2011-2013 · Engine: L6 8.4L 513cid 84AWI
Recorded application: Make: Challenger · Model: MT685D T4I / T2 · Year: 2011-2013 · Engine: L6 8.4L 513cid Sisu 84AWI
Recorded application: Make: Massey Ferguson · Model: MF 4707 · Year: 2016-2025 · Engine: L3 3.3L 201cid 33AWIC
Recorded application: Make: Massey Ferguson · Model: MF 4707 · Year: 2016-2025 · Engine: L3 3.3L 201cid Sisu 33AWIC
Recorded application: Make: Massey Ferguson · Model: MF 4708 ECO3 · Year: 2016-2025 · Engine: L3 3.3L 201cid 33AWIC
Recorded application: Make: Massey Ferguson · Model: MF 4708 ECO3 · Year: 2016-2025 · Engine: L3 3.3L 201cid Sisu 33AWIC
Recorded application: Make: Massey Ferguson · Model: MF 4708 · Year: 2016-2025 · Engine: L3 3.3L 201cid 33AWIC
Recorded application: Make: Massey Ferguson · Model: MF 4708 · Year: 2016-2025 · Engine: L3 3.3L 201cid Sisu 33AWIC
Recorded application: Make: Massey Ferguson · Model: MF 4709 ECO3 · Year: 2016-2025 · Engine: L3 3.3L 201cid 33AWIC
Recorded application: Make: Massey Ferguson · Model: MF 4709 ECO3 · Year: 2016-2025 · Engine: L3 3.3L 201cid Sisu 33AWIC
Recorded application: Make: Massey Ferguson · Model: MF 4709 · Year: 2016-2025 · Engine: L3 3.3L 201cid 33AWIC
Recorded application: Make: Massey Ferguson · Model: MF 4709 · Year: 2016-2025 · Engine: L3 3.3L 201cid Sisu 33AWIC
Recorded application: Make: Massey Ferguson · Model: MF 4710 · Year: 2016-2025 · Engine: L3 3.3L 201cid 33AWIC
Recorded application: Make: Massey Ferguson · Model: MF 4710 · Year: 2016-2025 · Engine: L3 3.3L 201cid Sisu 33AWIC
Recorded application: Make: Massey Ferguson · Model: MF 5445 · Year: 2008-2013 · Engine: L4 4.4L 268cid 1104
Recorded application: Make: Massey Ferguson · Model: MF 5445 · Year: 2008-2013 · Engine: L4 4.4L 268cid Perkins 1104
Recorded application: Make: Massey Ferguson · Model: MF 5450 · Year: 2011-2013 · Engine: L4 4.4L 269cid 1104D-44TA
Recorded application: Make: Massey Ferguson · Model: MF 5450 · Year: 2011-2013 · Engine: L4 4.4L 269cid Perkins 1104D-44TA
Recorded application: Make: Massey Ferguson · Model: MF 5455 · Year: 2008-2013 · Engine: L4 4.4L 268cid 1104
Recorded application: Make: Massey Ferguson · Model: MF 5455 · Year: 2008-2013 · Engine: L4 4.4L 268cid Perkins 1104
Recorded application: Make: Massey Ferguson · Model: MF 5460 · Year: 2008-2013 · Engine: L4 4.4L 268cid 1104
Recorded application: Make: Massey Ferguson · Model: MF 5460 · Year: 2008-2013 · Engine: L4 4.4L 268cid Perkins 1104
Recorded application: Make: Massey Ferguson · Model: MF 5470 · Year: 2008-2013 · Engine: L6 6.6L 402cid 1106
Recorded application: Make: Massey Ferguson · Model: MF 5470 · Year: 2008-2013 · Engine: L6 6.6L 402cid Perkins 1106
Recorded application: Make: Massey Ferguson · Model: MF 5480 · Year: 2008-2013 · Engine: L6 6.6L 402cid 1106
Recorded application: Make: Massey Ferguson · Model: MF 5480 · Year: 2008-2013 · Engine: L6 6.6L 402cid Perkins 1106

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 11203565

Which machines use 11203565?

Recorded compatible model references include Recorded application: Make: Challenger · Model: MT445B-T3 · Year: 2008-2013 · Engine: L4 4.4L 269cid C4.4, Recorded application: Make: Challenger · Model: MT445B-T3 · Year: 2008-2013 · Engine: L4 4.4L 269cid CaterpiLLar C4.4, Recorded application: Make: Challenger · Model: MT455B-T3 Dyna-4 · Year: 2008-2013 · Engine: L4 4.4L 269cid C4.4, Recorded application: Make: Challenger · Model: MT455B-T3 Dyna-4 · Year: 2008-2013 · Engine: L4 4.4L 269cid CaterpiLLar C4.4, Recorded application: Make: Challenger · Model: MT465B-T3 Dyna-4 · Year: 2008-2013 · Engine: L4 4.4L 269cid C4.4, Recorded application: Make: Challenger · Model: MT465B-T3 Dyna-4 · Year: 2008-2013 · Engine: L4 4.4L 269cid CaterpiLLar C4.4, Recorded application: Make: Challenger · Model: MT515D Dyna-4 · Year: 2013-2014 · Engine: L6 6.6L 403cid, Recorded application: Make: Challenger · Model: MT515D Dyna-4 · Year: 2013-2014 · Engine: L6 6.6L 403cid AGCO and 72 additional models shown on this page. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 11203565?

Formatting aliases for the same number: 11.203.565.

How do I confirm 11203565 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.

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