Excavator Alternators

8600573 24V 75A Alternator for Caterpillar 312D2 L, 313D2 LGP and 315C

Q: What numbers are documented for 8600573?

Primary Part Number: 8600573. Independent Catalog Number: 21127N. Cataloged Manufacturer Family: DELCO. Industry Catalog Number: 21127. Cataloged Replacement-Reference Family: Caterpillar 20R-3890, 20R-4620, 234-3463, 399-1485, 424-6821, 630-8957, Delco 8600573, 8600594, 8600684, 8600686, Hyster 76500282, Perkins Engine 3991485, 4246821. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 8600573 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.

8600573 24V 75A Alternator for Caterpillar 312D2 L, 313D2 LGP and 315C, OEM/reference 8600573, Alternator, product view 1

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OEM / reference8600573

SpecificationAlternator

Catalog ID80663986

8600573 is an exact product reference in the reviewed official electrical catalog. The catalog specifies 24V, 75A, CW, IR/IF for selected Caterpillar 312D2 L, 313D2 LGP, 315C applications. Compare the complete reference, electrical label, mounting, terminals, drive or pulley and the retained EexcavaStart product photographs with the original unit before ordering.

Product Type: Alternator
Voltage: 24 V
Rated Output: 75 A
Rotation: CW
Design Family: IR/IF
Manufacturer Series: 13SI
Pulley Class: S8
Condition: New replacement part

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Part-number relationships

Relationship	Reference family	Number
Primary Part Number	Exact reviewed reference	8600573
Independent Catalog Number	Catalog cross-reference number; not an OEM number	21127N
Cataloged Manufacturer Family	Manufacturer family stated by the official record	DELCO
Industry Catalog Number	Independent cross-reference only	21127
Cataloged Replacement-Reference Family	Official grouped replacement family; confirm manufacturer context and suffix before substitution	Caterpillar 20R-3890, 20R-4620, 234-3463, 399-1485, 424-6821, 630-8957, Delco 8600573, 8600594, 8600684, 8600686, Hyster 76500282, Perkins Engine 3991485, 4246821

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

8600573

Manufacturer number

DELCO

Other documented relationship

21127N
21127
Caterpillar 20R-3890, 20R-4620, 234-3463, 399-1485, 424-6821, 630-8957, Delco 8600573, 8600594, 8600684, 8600686, Hyster 76500282, Perkins Engine 3991485, 4246821

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: 80663986
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

15 model references

Barber Greene published applications: BG225C (1998-2012) — L4 4.4L 269cid Caterpillar 3054C / BG230D (1998-2008) — L4 4.4L 269cid Caterpillar 3054C / BG500E (2011-2014) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4 / BG555E (2011-2014, 2011-2017) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4 / BG600D (2009-2014) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / BG655D (2009-2014) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6
Bitelli published applications: BB760 (2003-2010) — L6 6.0L 365cid Caterpillar 3056E
Caterpillar Ag. & Ind. published applications — group 1: 420E (2006-2012) / 914G (1995-2014) / AP600D (2009-2014) / AP655D (2004-2005) / BG655D (2004-2005) / CP56 (2008-2012) / CS64 (2008-2012) / CS74 (2009-2012)
Caterpillar Ag. & Ind. published applications — group 2: IT14G (1995-2001)
Caterpillar published applications — group 1: 312D2 L (2008-2019) — L4 4.4L 269cid Caterpillar 3054C / 313D2 LGP (2009-2020) — L4 4.4L 269cid Caterpillar 3054C / 315C (2001-2007) — L4 4.4L 269cid Caterpillar 3054 / 318D2 L (2017-2024) — L4 4.4L 269cid Caterpillar 3054C; L4 4.4L 269cid Caterpillar C4.4 / 420E (2005-2015) — L4 4.4L 269cid 3054C; L4 4.4L 269cid Caterpillar 3054C / 527 (2010-2017) — L6 7.0L 428cid C7.1; L6 7.0L 428cid Caterpillar C7.1 / 914G (2004-2024) — L4 4.4L 269cid 3054C; L4 4.4L 269cid Caterpillar 3054C / 914G2 (2012-2023) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4
Caterpillar published applications — group 2: AP1000E (2012-2021, 2013-2021) — L6 7.0L 428cid C7.1; L6 7.0L 428cid Caterpillar C7.1; L6 6.6L 403cid Caterpillar C6.6 / AP1055E (2012-2021) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / AP500E (2011-2017) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4 / AP555E (2010-2017) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4; L6 6.6L 403cid Caterpillar C6.6 / AP600 (2006-2010) — L6 6.6L 403cid Caterpillar C6.6 / AP600D (2009-2016) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / AP650B (1997-2008) — L4 4.4L 269cid Caterpillar 3054C; L4 4.4L 269cid Caterpillar 3054T / AP655C (2002-2007) — L6 6.0L 365cid 3056B; L6 6.0L 365cid Caterpillar 3056B
Caterpillar published applications — group 3: AP655D (2007-2016) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / AP800D (2007-2008) — L4 4.4L 269cid Caterpillar 3054C / BB760 (2003-2010) — L6 6.0L 365cid Caterpillar 3056E / BG225C (1998-2012) — L4 4.4L 269cid Caterpillar 3054C / BG230D (1998-2008) — L4 4.4L 269cid Caterpillar 3054C / BG500E (2011-2014) — L4 4.4L 269cid Caterpillar C4.4 / BG555E (2011-2017, 2015-2017) — L4 4.4L 269cid Caterpillar C4.4 / CP323C (1995-2017) — L4 4.4L 269cid Caterpillar 3054
Caterpillar published applications — group 4: CP433E (2001-2011) — L4 4.4L 269cid Caterpillar 3054C; L4 4.4L 269cid Caterpillar 3054T / CP44 (2009-2019) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4 / CP533E (2004-2018) — L4 4.4L 269cid Caterpillar 3054C / CP54 (2008-2014) — L4 4.4L 269cid Caterpillar C4.4 / CP54B (2013-2021) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4 / CP56 (2008-2014) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / CP563E (2003-2009) — L6 6.0L 365cid Caterpillar 3056E / CP573E (2003-2007) — L6 6.0L 365cid Caterpillar 3056E
Caterpillar published applications — group 5: CP64 (2008-2014) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / CP663E (2000-2006) — L6 6.0L 365cid Caterpillar 3056E / CP74 (2008-2014) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / CP76 (2007-2014) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / CS323C (1995-2012) — L4 4.4L 269cid Caterpillar 3054C / CS423E (2003-2009) — L4 4.4L 269cid Caterpillar 3054C / CS433E (2001-2011) — L4 4.4L 269cid Caterpillar 3054C; L4 4.4L 269cid Caterpillar 3054T / CS44 (2010-2019) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4
Caterpillar published applications — group 6: CS533E (2004-2018) — L4 4.4L 269cid Caterpillar 3054C / CS54 (2008-2014) — L4 4.4L 269cid Caterpillar C4.4 / CS54B (2013-2021) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4 / CS56 (2008-2014) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / CS563E (2003-2009) — L6 6.0L 365cid Caterpillar 3056E / CS573E (2003-2008) — L6 6.0L 365cid Caterpillar 3056E / CS583E (2003-2008) — L6 6.0L 365cid Caterpillar 3056E / CS64 (2008-2014) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6
Caterpillar published applications — group 7: CS663E (2000-2006) — L6 6.0L 365cid Caterpillar 3056E / CS683E (2003-2008) — L6 6.0L 365cid Caterpillar 3056E / CS74 (2008-2014) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / CS76 (2008-2014) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / IT14G 2 (2012-2024) — L4 4.4L 269cid Caterpillar / IT14G (2004-2015) — L4 4.4L 269cid 3054C; L4 4.4L 269cid Caterpillar 3054C / IT14G2 (2012-2024) — L4 4.4L 269cid 3054C; L4 4.4L 269cid Caterpillar 3054C / M313C (2003-2007) — L4 4.4L 269cid 3054; L4 4.4L 269cid Caterpillar 3054; L4 4.4L 269cid Caterpillar 3054E
Caterpillar published applications — group 8: M313D (2007-2016) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4 / M315C (2003-2006) — L4 4.4L 269cid 3054; L4 4.4L 269cid Caterpillar 3054 / M315D (2007-2016) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4 / M315D2 (2017-2024) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4 / M315E (2017-2019) — L4 4.4L 269cid 3054E; L4 4.4L 269cid Caterpillar 3054E / M316C (2005-2011) — L6 6.0L 365cid 3056; L6 6.0L 365cid Caterpillar 3056 / M316D (2011-2020) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / M318C MH (2003-2007) — L6 6.0L 365cid 3056B; L6 6.0L 365cid Caterpillar 3056B
Caterpillar published applications — group 9: M318C (2005-2011) — L6 6.0L 365cid 3056; L6 6.0L 365cid Caterpillar 3056 / M318D MH (2007-2015) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / M318D (2011-2021) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / M322C (2002-2011) — L6 6.0L 365cid 3056B; L6 6.0L 365cid Caterpillar 3056B / M322D MH (2007-2017) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / M322D (2007-2017) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / PF300C (2007-2009) — L4 4.4L 269cid Caterpillar 3054C / PS300C (2004-2009) — L4 4.4L 269cid Caterpillar 3054C
Caterpillar published applications — group 10: PS360C (2005-2014) — L4 4.4L 269cid Caterpillar 3054C
Fitment limitation: Confirm the complete part number, electrical rating, rotation, drive or pulley, mounting, terminals and equipment serial range before ordering.

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 8600573

Which machines use 8600573?

Recorded compatible model references include Barber Greene published applications: BG225C (1998-2012) — L4 4.4L 269cid Caterpillar 3054C / BG230D (1998-2008) — L4 4.4L 269cid Caterpillar 3054C / BG500E (2011-2014) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4 / BG555E (2011-2014, 2011-2017) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4 / BG600D (2009-2014) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / BG655D (2009-2014) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6, Bitelli published applications: BB760 (2003-2010) — L6 6.0L 365cid Caterpillar 3056E, Caterpillar Ag. & Ind. published applications — group 1: 420E (2006-2012) / 914G (1995-2014) / AP600D (2009-2014) / AP655D (2004-2005) / BG655D (2004-2005) / CP56 (2008-2012) / CS64 (2008-2012) / CS74 (2009-2012), Caterpillar Ag. & Ind. published applications — group 2: IT14G (1995-2001), Caterpillar published applications — group 1: 312D2 L (2008-2019) — L4 4.4L 269cid Caterpillar 3054C / 313D2 LGP (2009-2020) — L4 4.4L 269cid Caterpillar 3054C / 315C (2001-2007) — L4 4.4L 269cid Caterpillar 3054 / 318D2 L (2017-2024) — L4 4.4L 269cid Caterpillar 3054C; L4 4.4L 269cid Caterpillar C4.4 / 420E (2005-2015) — L4 4.4L 269cid 3054C; L4 4.4L 269cid Caterpillar 3054C / 527 (2010-2017) — L6 7.0L 428cid C7.1; L6 7.0L 428cid Caterpillar C7.1 / 914G (2004-2024) — L4 4.4L 269cid 3054C; L4 4.4L 269cid Caterpillar 3054C / 914G2 (2012-2023) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4, Caterpillar published applications — group 2: AP1000E (2012-2021, 2013-2021) — L6 7.0L 428cid C7.1; L6 7.0L 428cid Caterpillar C7.1; L6 6.6L 403cid Caterpillar C6.6 / AP1055E (2012-2021) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / AP500E (2011-2017) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4 / AP555E (2010-2017) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4; L6 6.6L 403cid Caterpillar C6.6 / AP600 (2006-2010) — L6 6.6L 403cid Caterpillar C6.6 / AP600D (2009-2016) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / AP650B (1997-2008) — L4 4.4L 269cid Caterpillar 3054C; L4 4.4L 269cid Caterpillar 3054T / AP655C (2002-2007) — L6 6.0L 365cid 3056B; L6 6.0L 365cid Caterpillar 3056B, Caterpillar published applications — group 3: AP655D (2007-2016) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / AP800D (2007-2008) — L4 4.4L 269cid Caterpillar 3054C / BB760 (2003-2010) — L6 6.0L 365cid Caterpillar 3056E / BG225C (1998-2012) — L4 4.4L 269cid Caterpillar 3054C / BG230D (1998-2008) — L4 4.4L 269cid Caterpillar 3054C / BG500E (2011-2014) — L4 4.4L 269cid Caterpillar C4.4 / BG555E (2011-2017, 2015-2017) — L4 4.4L 269cid Caterpillar C4.4 / CP323C (1995-2017) — L4 4.4L 269cid Caterpillar 3054, Caterpillar published applications — group 4: CP433E (2001-2011) — L4 4.4L 269cid Caterpillar 3054C; L4 4.4L 269cid Caterpillar 3054T / CP44 (2009-2019) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4 / CP533E (2004-2018) — L4 4.4L 269cid Caterpillar 3054C / CP54 (2008-2014) — L4 4.4L 269cid Caterpillar C4.4 / CP54B (2013-2021) — L4 4.4L 269cid C4.4; L4 4.4L 269cid Caterpillar C4.4 / CP56 (2008-2014) — L6 6.6L 403cid C6.6; L6 6.6L 403cid Caterpillar C6.6 / CP563E (2003-2009) — L6 6.0L 365cid Caterpillar 3056E / CP573E (2003-2007) — L6 6.0L 365cid Caterpillar 3056E and 7 additional models shown on this page. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 8600573?

Manufacturer number: DELCO.

How do I confirm 8600573 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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