Heavy Duty Alternator

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Equivalent Replacement Parts for KOMATSU Part Number ALT1023

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Part Number	Description	Brochure (English)	Brochure (Spanish)
10459461 10459461 21SI Reman Alternator Status: Obsolete Type: Reman Voltage: 24 Rated Output: 50 Amps Mount Type: J180 Hinge B+ Output: M6 R Terminal: M4 I Terminal: M4 Remote Sense: No Polarity: Negative	21SI Reman Alternator
10469461 10469461 21SI Reman Alternator Status: Obsolete Type: Reman Voltage: 24 Rated Output: 50 Amps Mount Type: J180 Hinge B+ Output: M6 R Terminal: M4 I Terminal: M4 Remote Sense: No Polarity: Negative	21SI Reman Alternator
19010108 19010108 21SI New Alternator Status: Active Type: New Voltage: 24 Rated Output: 50 Amps Mount Type: J180 Hinge B+ Output: M6 R Terminal: M4 I Terminal: M4 Remote Sense: No Polarity: Negative	21SI New Alternator
19010108 19010108 21SI New Alternator Status: Active Type: New Mount Type: J180 Hinge	21SI New Alternator
10469461 10469461 21SI Reman Alternator Status: Obsolete Type: Reman Mount Type: J180 Hinge	21SI Reman Alternator
10459461 10459461 21SI Reman Alternator Status: Obsolete Type: Reman Mount Type: J180 Hinge	21SI Reman Alternator
10459461 10459461 21SI Reman Alternator Status: Obsolete Type: Reman Voltage: 24 Rated Output: 50 Amps Mount Type: J180 Hinge B+ Output: M6 R Terminal: M4 I Terminal: M4 Remote Sense: No Polarity: Negative	21SI Reman Alternator
10469461 10469461 21SI Reman Alternator Status: Obsolete Type: Reman Voltage: 24 Rated Output: 50 Amps Mount Type: J180 Hinge B+ Output: M6 R Terminal: M4 I Terminal: M4 Remote Sense: No Polarity: Negative	21SI Reman Alternator
19010108 19010108 21SI New Alternator Status: Active Type: New Voltage: 24 Rated Output: 50 Amps Mount Type: J180 Hinge B+ Output: M6 R Terminal: M4 I Terminal: M4 Remote Sense: No Polarity: Negative	21SI New Alternator

Upgrade Options

Part Number	Description	Amps	Feature	Brochure (English)	Brochure (Spanish)	Notes
8600467 8600467 28SI New Alternator Status: Active Type: New Voltage: 24 Rated Output: 110 Amps Mount Type: J180 Short Hinge B+ Output: 5/16 R Terminal: #10 I Terminal: #10 Remote Sense: Yes Polarity: Negative	28SI New Alternator	110	High Output	Download PDF	Download PDF	28SI Upgrade Delco Remy 28SI high output Alternators are designed to address vehicle applications that require higher electrical output, but also want lower weight, improved temperature capability, and fuel savings. Vehicles, such as school buses, not using a premium high output alternator will likely experience premature failures due to high under-hood engine temperatures. Delco Remy 28SI alternators are designed using our Dual Internal Fan technology which improves the operating efficiency and durability of the unit. 28SI Alternators can withstand high under-hood engine temperatures of up to 125°C 28SI Alternators come standard with Remote Sense technology 28SI Alternators provide higher electrical output up to 200Amps