Heavy Duty Alternator

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Equivalent Replacement Parts for Reference Number Part Number 121-4135

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Part NumberDescriptionBrochure (English)Brochure (Spanish)
19010165
19010165
21SI New Alternator
Status:
Obsolete
Type:
New
Voltage:
12
Rated Output:
130 Amps
Mount Type:
J180 Hinge
B+ Output:
5/16
R Terminal:
PIN
Remote Sense:
No
Polarity:
Negative
21SI New Alternator  

Upgrade Options

Part NumberDescriptionAmpsFeatureBrochure (English)Brochure (Spanish)Notes
8600126
8600126 36SI New Alternator
8600126
36SI New Alternator
Status:
Active
Type:
New
Voltage:
12
Rated Output:
170 Amps
Mount Type:
J180 Hinge
B+ Output:
1/4
R Terminal:
#10
I Terminal:
#10
Remote Sense:
Yes
Polarity:
Negative
36SI New Alternator170Brushless Durability & 3 Year WarrantyDownload PDFDownload PDF
8600310
8600310 24SI New Alternator
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 Alternator160 Download PDFDownload PDF Dual Internal Fans / Tech Tip Video
8600312
8600312 28SI New Alternator
8600312
28SI New Alternator
Status:
Active
Type:
New
Voltage:
12
Rated Output:
160 Amps
Mount Type:
J180 Short Hinge
B+ Output:
5/16
R Terminal:
#10
I Terminal:
#10
Remote Sense:
Yes
Polarity:
Negative
28SI New Alternator160High OutputDownload PDFDownload PDF Dual Internal Fans / Tech Tip Video
Copyright © 2025 PHINIA Inc. All rights reserved.
DELCO REMY is a registered trademark of General Motors LLC, licensed to PHINIA Technologies Inc.
Copyright © 2025 PHINIA Inc. All rights reserved.
DELCO REMY is a registered trademark of General Motors LLC, licensed to PHINIA Technologies Inc.