Delco Replacements for Reference Number 121-4134

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Part Number	Description	Brochure (English)	Brochure (Spanish)
19010104 19010104 21SI New Alternator Status: Private Brand Type: New Voltage: 12 Rated Output: 115 Amps Mount Type: J180 Hinge B+ Output: 5/16 R Terminal: PIN I Terminal: NULL Remote Sense: No Polarity: Negative	21SI New Alternator

Part Number	Description	Amps	Feature	Brochure (English)	Brochure (Spanish)	Notes
8600310 8600310 24SI New Alternator Status: Active Type: New Voltage: 12 Rated Output: 160 Amps Mount Type: J180 Hinge B+ Output: 5/16 R Terminal: #10 I Terminal: #10 Remote Sense: No Polarity: Negative	24SI New Alternator	160		Download PDF	Download PDF	Best Replacement, 24SI All-Makes Delco Remy All-Makes 24SI brush style alternators are designed with dual internal fans which provide maximum cooling technology and improve the operating efficiency & durability of the unit. The 24SI is offered in 12 volt models capable of producing up to 160 Amps at road speed & 100 Amps at idle & 24 volt models capable of producing up to 70 amps. The 24SI is available in both J180 Hinge Mount or Pad Mount configurations.

Heavy Duty Alternator