Heavy Duty Alternator

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For Technical Assistance Call:
1-800-372-0222

Part No. 1117944 — 21SI New Alternator

Obsolete

Specifications

Part Number

1117944

Status

Obsolete

Superseded By

19010111

21SI New Alternator

Status:

Active

Type:

New

Voltage:

Rated Output:

70 Amps

Mount Type:

J180 Hinge

B+ Output:

R Terminal:

I Terminal:

Remote Sense:

Polarity:

Negative

Active

Model

21SI

Type

New Alternator

Mount Type

J180 Hinge

System Voltage

Rated Output

70 Amps

B+ Output Terminal

R Terminal

Remote Sense Terminal

Ground Terminal

Negative

Documents

Installation Instructions

Replacement Options

19010111

21SI New Alternator

Status:

Active

Type:

New

Voltage:

Rated Output:

70 Amps

Mount Type:

J180 Hinge

B+ Output:

R Terminal:

I Terminal:

Remote Sense:

Polarity:

Negative

21SI New Alternator

Output 70 Amps

Upgrade Options

8600388

24SI New Alternator

Status:

Active

Type:

New

Voltage:

Rated Output:

70 Amps

Mount Type:

J180 Hinge

B+ Output:

5/16

R Terminal:

#10

I Terminal:

#10

Remote Sense:

Polarity:

Negative

24SI New Alternator

Output 70 Amps

Dual Internal Fans / Tech Tip Video

8600467

28SI New Alternator

Status:

Active

Type:

New

Voltage:

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

Output 110 Amps

Dual Internal Fans / Tech Tip Video

Service Parts

Numbers on the drawing indicate the service kit(s) the components are associated with.

Ref #	Description	Part Number
1	DE Frame w/Bearing	10467267 10467267 Part 21SI DE FRAME Status: Active Type: Part
2	Stator Asm	10470875 10470875 Part 21/22/23SI STATOR - 24 VOLT 70 AMP Status: Active Type: Part
4	RE Frame w/Bearing	10467269 10467269 Part 21SI Status: Obsolete Type: Part
5	Brush Holder Asm	10467934 10467934 Part 19/21SI BRUSH HOLDER INCLS BRUSHES Status: Active Type: Part
6	Rectifier Bridge	10512366 10512366 Part RECTIFIER BRIDGE 24V PRESS FIT FLEX-LEAD DIODE Status: Active Type: Part
7	Regulator	1987518 1987518 Part REGULATOR - 24 VOLT Status: Active Type: Part
8	Ball Bearing Asm	10472935 10472935 Part BALL BEARING - SEALED BOTH SIDES 2.44 OD X .98 ID Status: Obsolete Type: Part
9	Roller Bearing Asm	9439542 9439542 Part .67 ID TORRINGTON W/GREASE RESERVOIR Status: Obsolete Type: Part
11	Fan	10467272 10467272 Part 21/22SI FAN CAST ALUM - BI-DIRECTIONAL Status: Active Type: Part
12	"B+" Terminal Kit	10479702 10479702 Part 19/21SI - OUTPUT - M6 THD Status: Obsolete Type: Part
14	"R" Terminal Kit	10457809 10457809 Part 21SI - M4 THD Status: Obsolete Type: Part
16	Hardware Repair Kit	10457727 10457727 Part 21SI Status: Obsolete Type: Part

Ref #

Description

Part Number

DE Frame w/Bearing

10467267

Part 21SI DE FRAME

Status:

Active

Type:

Part

Stator Asm

10470875

Part 21/22/23SI STATOR - 24 VOLT 70 AMP

Status:

Active

Type:

Part

RE Frame w/Bearing

10467269

Part 21SI

Status:

Obsolete

Type:

Part

Brush Holder Asm

10467934

Part 19/21SI BRUSH HOLDER INCLS BRUSHES

Status:

Active

Type:

Part

Rectifier Bridge

10512366

Part RECTIFIER BRIDGE 24V PRESS FIT FLEX-LEAD DIODE

Status:

Active

Type:

Part

Regulator

1987518

Part REGULATOR - 24 VOLT

Status:

Active

Type:

Part

Ball Bearing Asm

10472935

Part BALL BEARING - SEALED BOTH SIDES 2.44 OD X .98 ID

Status:

Obsolete

Type:

Part

Roller Bearing Asm

9439542

Part .67 ID TORRINGTON W/GREASE RESERVOIR

Status:

Obsolete

Type:

Part

Fan

10467272

Part 21/22SI FAN CAST ALUM - BI-DIRECTIONAL

Status:

Active

Type:

Part

"B+" Terminal Kit

10479702

Part 19/21SI - OUTPUT - M6 THD

Status:

Obsolete

Type:

Part

"R" Terminal Kit

10457809

Part 21SI - M4 THD

Status:

Obsolete

Type:

Part

Hardware Repair Kit

10457727

Part 21SI

Status:

Obsolete

Type:

Part

Any third part original manufacturer brands are for cross reference purposes only and do not constitute the source of goods.