Excavator Alternators

197-8820 24V 95A Alternator for Cat C7 C9 C13 C15

Q: What numbers are documented for 197-8820?

Primary Equipment Part Number: 197-8820. Same-number Formatting Variant: 1978820. Manufacturer Reman Number: 10R-9789. Manufacturer Reman Number: 10R-9790. Manufacturer Former / Reman Number: 0R-4841. Manufacturer Alternator Number: 101211-8311. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 197-8820 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.

197-8820 24V 95A Alternator for Cat C7 C9 C13 C15, OEM/reference 197-8820, 24V 95A Heavy-Duty Charging Alternator, product view 1

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OEM / reference197-8820

Specification24V 95A Heavy-Duty Charging Alternator

Catalog ID62565145

Heavy-duty charging alternator identified by Cat number 197-8820. The official record specifies 24V and 95A and supports C7, C9, C11, C13, C15, C18, C27 and C32 engine families across excavators and other Cat equipment. Two exact owned product-only photographs are retained; every view showing WPS packaging or external branding was excluded. Confirm the SAE J180 mount, pulley, terminals and machine serial range.

Product Type: Heavy-Duty Charging Alternator
Rated System Voltage: 24V
Rated Output: 95A
Mount Type: SAE J180 cataloged
Design: Brushless cataloged
Condition: New replacement unit

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Part-number relationships

Relationship	Reference family	Number
Primary Equipment Part Number	Cat charging-alternator number	197-8820
Same-number Formatting Variant	Search alias only	1978820
Manufacturer Reman Number	Cataloged Cat Reman replacement	10R-9789
Manufacturer Reman Number	Cataloged Cat Reman replacement	10R-9790
Manufacturer Former / Reman Number	Cataloged Cat reference	0R-4841
Manufacturer Alternator Number	Cataloged Denso reference	101211-8311

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

197-8820

Manufacturer number

10R-9789
10R-9790
0R-4841
101211-8311

Formatting alias

1978820

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

Product summary

24V 95A Heavy-Duty Charging Alternator

Category: Excavator Alternators
Catalog ID: 62565145
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

6 model references

Cataloged engine families: Cat C7 / C9 / C11 / C13 / C15 / C18 / C27 / C32
Excavator examples: Cat 320D / 330D / 336D / 345B / 365C / 374D / 385B
Dozer and loader examples: Cat D6T / D7R / D8T / D9T / 924G / 980H / 988H
Caterpillar catalog applications: 1190, 1190T, 120H, 120H ES, 120H NA, 120K, 120K 2, 1290T, 12H, 12H ES, 12H NA, 12K, 135H, 135H NA, 1390, 140H ES, 140H NA, 140K, 140K 2, 143H, 14H NA, 160H ES, 160H NA, 160K, 163H NA, 16H NA, 2290, 2390, 2391, 2491, 24H, 2590, 30/30, 511, 5110B, 5130, 5130B, 521, 521B, 522, 522B, 5230, 5230B, 525B, 532, 535B, 541, 541 2, 545, 551, 552, 552 2, 572R II, 583T, 587R, 587T, 770, 772, 776C, 776D, 777, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789B, 789C, 793B, 793C, 793D, 824H, 825H, 826H, 834G, 834H, 836H, 844, 854G, 924GZ, 924H, 924HZ, 928G, 928H, 928HZ, 930G, 930H, 973D, 980G II, 988G, 990, 990 II, 992G, 994, 994D, AD22, AD30, AD45B, AD55, CX31-C11I, CX31-C13I, CX31-C15I, CX31-C9I, CX31-P600, CX35-P800, CX48-P2300, D10N, D10R, D10T, D11N, D11R, D6R II, D6R III, D7R II, D7R LGP, D7R SERIES, D7R XR, D8R, D8R II, D9R, DEUCE, IT28G, PL83, PL87, PM-200, PM-201, PM-465, PM-565, R1300G, R1600G, R1600H, R1700G, RM-500, SBF214, TH31-C9I, TH31-C9P, TH31-E61, TH35-C11I, TH35-C13I, TH35-C15I, TH35-E81, TH48-E70, TH48-E80, TK1051, TK711, TK721, TK722, TK732, TK741, TK751, TK752
Caterpillar catalog engine references: 3116, 3126, 3126B, 3126E, 3176B, 3176C, 3196, 3306, 3306C, 3406C, 3406E, 3408, 3408B, 3408C, 3408E, 3412, 3412C, 3412E, 3456, 3508, 3508B, 3512, 3512B, 3512C, 3512E, 3516, 3516B, 3516C, C-10, C-12, C-16, G3606, G3608, G3612, G3616
Fitment limitation: Confirm 197-8820, 24V 95A, mount, pulley, terminals and serial range

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 197-8820

Which machines use 197-8820?

Recorded compatible model references include Cataloged engine families: Cat C7 / C9 / C11 / C13 / C15 / C18 / C27 / C32, Excavator examples: Cat 320D / 330D / 336D / 345B / 365C / 374D / 385B, Dozer and loader examples: Cat D6T / D7R / D8T / D9T / 924G / 980H / 988H, Caterpillar catalog applications: 1190, 1190T, 120H, 120H ES, 120H NA, 120K, 120K 2, 1290T, 12H, 12H ES, 12H NA, 12K, 135H, 135H NA, 1390, 140H ES, 140H NA, 140K, 140K 2, 143H, 14H NA, 160H ES, 160H NA, 160K, 163H NA, 16H NA, 2290, 2390, 2391, 2491, 24H, 2590, 30/30, 511, 5110B, 5130, 5130B, 521, 521B, 522, 522B, 5230, 5230B, 525B, 532, 535B, 541, 541 2, 545, 551, 552, 552 2, 572R II, 583T, 587R, 587T, 770, 772, 776C, 776D, 777, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789B, 789C, 793B, 793C, 793D, 824H, 825H, 826H, 834G, 834H, 836H, 844, 854G, 924GZ, 924H, 924HZ, 928G, 928H, 928HZ, 930G, 930H, 973D, 980G II, 988G, 990, 990 II, 992G, 994, 994D, AD22, AD30, AD45B, AD55, CX31-C11I, CX31-C13I, CX31-C15I, CX31-C9I, CX31-P600, CX35-P800, CX48-P2300, D10N, D10R, D10T, D11N, D11R, D6R II, D6R III, D7R II, D7R LGP, D7R SERIES, D7R XR, D8R, D8R II, D9R, DEUCE, IT28G, PL83, PL87, PM-200, PM-201, PM-465, PM-565, R1300G, R1600G, R1600H, R1700G, RM-500, SBF214, TH31-C9I, TH31-C9P, TH31-E61, TH35-C11I, TH35-C13I, TH35-C15I, TH35-E81, TH48-E70, TH48-E80, TK1051, TK711, TK721, TK722, TK732, TK741, TK751, TK752, Caterpillar catalog engine references: 3116, 3126, 3126B, 3126E, 3176B, 3176C, 3196, 3306, 3306C, 3406C, 3406E, 3408, 3408B, 3408C, 3408E, 3412, 3412C, 3412E, 3456, 3508, 3508B, 3512, 3512B, 3512C, 3512E, 3516, 3516B, 3516C, C-10, C-12, C-16, G3606, G3608, G3612, G3616, Fitment limitation: Confirm 197-8820, 24V 95A, mount, pulley, terminals and serial range. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 197-8820?

Manufacturer number: 10R-9789, 10R-9790, 0R-4841, 101211-8311. Formatting aliases for the same number: 1978820.

How do I confirm 197-8820 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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