ALTERNATOR GROUP 7N7121 - Caterpillar



7N7121 ALTERNATOR GROUP Caterpillar parts 3208
Rating:
24
Alternative (cross code) number:
CA7N7121
7N-7121
7N7121
Caterpillar 7N7121 ALTERNATOR GROUP
Weight: 0.13 pounds 0 kg.

Buy ALTERNATOR GROUP 7N7121 Caterpillar genuine, new aftermarket tractor parts with delivery
INDUSTRIAL ENGINE, TRUCK ENGINE,

Related part:
7N7121  ALTERNATOR GP -B  0R5201  R

Cross Reference:

CATERPILLAR 3P0077, 7N7121, 9G6081, OR5201, DELCO REMY 1102398, 1102934, 1103167, 1103191, 1105077, 1105159, 1105431, 1105436, 321-651,

Compare Prices:

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$259.95

05 Aug 2025
11.0[4.95] pounds
US: Rareelectrical
RAREELECTRICAL New 24V Alternator Compatible With 1973-84 Caterpillar Grader 130G 3304 7N7121 9G6081 1105077 1105159 1105431 1105436
Rareelectrical Rareelectrical Brand Compatible with CAT, CATERPILLAR, DELCO, FIAT, FIAT-ALLIS. Please verify your OEM part number from your original unit to help ensure fitment. || Replaces: Caterpillar 7N7121 9G6081 / Delco 1105077 1105159 1105431 1105436 / Item Description: Alternator / Unit Type: Delco / Family: Delco 10Si / Family Type: 136 / Voltage: 24 / Amperage: 40 / Fan: External / Regulator: Internal / Polarity: Negative || Applications: Please Verify Your Oem Part Number From Your Original Unit To Help Ensure Fitment. / Caterpillar Grader 130G Cat. 3304 1973-1984Caterpillar Grader 140G Cat. 3306 1973-1984Fiat-Allis Wheel Loader 645B 3500 Diesel 1976-1979Fiat-Allis Wheel Loader 745B 11000 Diesel 1976-1979 || Applications: ... || Alternator - Voltage: 24V Amperage: 40 Amps Fan: External Regulator: Internal Country Of Origin: US Source: Aftermarket
$259.95

05 Aug 2025
11.0[4.95] pounds
US: Rareelectrical
RAREELECTRICAL New 24V Alternator Compatible With 1973-84 Caterpillar Grader 140G 3306 7N7121 9G6081 1105077 1105159 1105431 1105436
Rareelectrical Rareelectrical Brand Compatible with CAT, CATERPILLAR, DELCO, FIAT, FIAT-ALLIS. Please verify your OEM part number from your original unit to help ensure fitment. || Replaces: Caterpillar 7N7121 9G6081 / Delco 1105077 1105159 1105431 1105436 / Item Description: Alternator / Unit Type: Delco / Family: Delco 10Si / Family Type: 136 / Voltage: 24 / Amperage: 40 / Fan: External / Regulator: Internal / Polarity: Negative || Applications: Please Verify Your Oem Part Number From Your Original Unit To Help Ensure Fitment. / Caterpillar Grader 130G Cat. 3304 1973-1984Caterpillar Grader 140G Cat. 3306 1973-1984Fiat-Allis Wheel Loader 645B 3500 Diesel 1976-1979Fiat-Allis Wheel Loader 745B 11000 Diesel 1976-1979 || Applications: ... || Alternator - Voltage: 24V Amperage: 40 Amps Fan: External Regulator: Internal Country Of Origin: US Source: Aftermarket
$240.93

30 Apr 2025
11.0[4.95] Pounds
US: Rareelectrical
RAREELECTRICAL New 24V Alternator Compatible With 1976-79 Fiat-Allis Wheel Loader 645B 3500 7N7121 9G6081
Rareelectrical Rareelectrical Brand Compatible with CAT, CATERPILLAR, DELCO, FIAT, FIAT-ALLIS. Please verify your OEM part number from your original unit to help ensure fitment. || Replaces: Caterpillar 7N7121 9G6081 / Delco 1105077 1105159 1105431 1105436 / Item Description: Alternator / Unit Type: Delco / Family: Delco 10Si / Family Type: 136 / Voltage: 24 / Amperage: 40 / Fan: External / Regulator: Internal / Polarity: Negative || Applications: Please Verify Your Oem Part Number From Your Original Unit To Help Ensure Fitment. / Caterpillar Grader 130G Cat. 3304 1973-1984Caterpillar Grader 140G Cat. 3306 1973-1984Fiat-Allis Wheel Loader 645B 3500 Diesel 1976-1979Fiat-Allis Wheel Loader 745B 11000 Diesel 1976-1979 || Applications: ... || Alternator - Voltage: 24V Amperage: 40 Amps Fan: External Regulator: Internal Country Of Origin: US Source: Aftermarket
Number on catalog scheme: 13
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Compatible equipment models: 7N7121:

INDUSTRIAL ENGINE  3208  
TRUCK ENGINE  Caterpillar

Caterpillar SIS machinery equipment:

Caterpillar SIS
3208 INDUSTRIAL ENGINES 90N06121-37284 » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE COVERING ENGINE ARRANGEMENTS FOR FORD MOTO 40S00001-UP » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE COVERING ENGINE ARRANGEMENTS FOR FORD MOTO 40S00001-UP » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR INTERNAT 40S00001-UP » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR GENERAL 40S00001-UP » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR WHITE MO 40S00001-UP » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE 32Y00001-68440 » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE 32Y00001-68440 » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE 32Y00001-68440 FORD MOTOR CO. » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE 32Y00001-68440 FORD MOTOR CO. » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE 32Y00001-68440 GENERAL MOTORS » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE 32Y00001-68440 GENERAL MOTORS » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE 32Y00001-68440 INTERNATIONAL » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE 32Y00001-68440 INTERNATIONAL » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE 32Y00001-68440 WHITE MOTOR COMPANY » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE 32Y00001-68440 WHITE MOTOR COMPANY » 7N-7121 ALTERNATOR GROUP
3208 INDUSTRIAL ENGINE 90N37285-52892 » 7N-7121 ALTERNATOR GROUP
3208 INDUSTRIAL ENGINE 90N37285-52892 » 7N-7121 ALTERNATOR GROUP
3208 TRUCK ENGINE COVERING ENGINE ARRANGEMENTS 9L6082 9L6260 40S00001-UP » 7N-7121 ALTERNATOR GROUP

Caterpillar parts catalog:

Caterpillar parts catalog
3208 INDUSTRIAL ENGINES 90N06121-37284
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR INTERNAT 40S00001-UP
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR GENERAL 40S00001-UP
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR WHITE MO 40S00001-UP
3208 TRUCK ENGINE COVERING ENGINE ARRANGEMENTS 9L6082 9L6260 40S00001-UP
3208 INDUSTRIAL ENGINES 90N06121-37284
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR INTERNAT 40S00001-UP
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR GENERAL 40S00001-UP
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR WHITE MO 40S00001-UP
3208 TRUCK ENGINE COVERING ENGINE ARRANGEMENTS 9L6082 9L6260 40S00001-UP
3208 TRUCK ENGINE COVERING ENGINE ARRANGEMENTS FOR FORD MOTO 40S00001-UP
3208 TRUCK ENGINE 32Y00001-68440
3208 TRUCK ENGINE 32Y00001-68440 FORD MOTOR CO.
3208 TRUCK ENGINE 32Y00001-68440 GENERAL MOTORS
3208 TRUCK ENGINE 32Y00001-68440 INTERNATIONAL
3208 TRUCK ENGINE 32Y00001-68440 WHITE MOTOR COMPANY
3208 INDUSTRIAL ENGINE 90N37285-52892
3208 TRUCK ENGINE COVERING ENGINE ARRANGEMENTS FOR FORD MOTO 40S00001-UP
3208 TRUCK ENGINE 32Y00001-68440
3208 TRUCK ENGINE 32Y00001-68440 FORD MOTOR CO.
3208 TRUCK ENGINE 32Y00001-68440 GENERAL MOTORS
3208 TRUCK ENGINE 32Y00001-68440 INTERNATIONAL
3208 TRUCK ENGINE 32Y00001-68440 WHITE MOTOR COMPANY
3208 INDUSTRIAL ENGINE 90N37285-52892
3208 INDUSTRIAL ENGINES 90N06121-37284
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR INTERNAT 40S00001-UP
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR GENERAL 40S00001-UP
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR WHITE MO 40S00001-UP
3208 TRUCK ENGINE COVERING ENGINE ARRANGEMENTS 9L6082 9L6260 40S00001-UP
3208 INDUSTRIAL ENGINES 90N06121-37284
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR INTERNAT 40S00001-UP
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR GENERAL 40S00001-UP
3208 TRUCK ENGINE- COVERING ENGINE ARRANGEMENTS FOR WHITE MO 40S00001-UP
3208 TRUCK ENGINE COVERING ENGINE ARRANGEMENTS 9L6082 9L6260 40S00001-UP
3208 TRUCK ENGINE COVERING ENGINE ARRANGEMENTS FOR FORD MOTO 40S00001-UP
3208 TRUCK ENGINE 32Y00001-68440
3208 TRUCK ENGINE 32Y00001-68440 FORD MOTOR CO.
3208 TRUCK ENGINE 32Y00001-68440 GENERAL MOTORS
3208 TRUCK ENGINE 32Y00001-68440 INTERNATIONAL
3208 TRUCK ENGINE 32Y00001-68440 WHITE MOTOR COMPANY
3208 INDUSTRIAL ENGINE 90N37285-52892
3208 TRUCK ENGINE COVERING ENGINE ARRANGEMENTS FOR FORD MOTO 40S00001-UP
3208 TRUCK ENGINE 32Y00001-68440
3208 TRUCK ENGINE 32Y00001-68440 FORD MOTOR CO.
3208 TRUCK ENGINE 32Y00001-68440 GENERAL MOTORS
3208 TRUCK ENGINE 32Y00001-68440 INTERNATIONAL
3208 TRUCK ENGINE 32Y00001-68440 WHITE MOTOR COMPANY
3208 INDUSTRIAL ENGINE 90N37285-52892


Information:

1.1 Liter Family Of EnginesIn some cases the deterioration of the 328970 O-Ring Seal at the bottom of the unit injector has been reported as the cause of combustion leakage around the injector. The purpose of this seal is to provide initial sealing until the unit injector seats in the 7W5749 Sleeve (brass) in the cylinder head. The injector seats in the sleeve almost immediately after the initial engine start up. Therefore, deterioration of the 328970 O-Ring Seal will not result in combustion leakage. It is normal for this seal to deteriorate over time due to exposure to the hot combustion gasses.
Whenever the unit injector is removed, both the tip and body seals should be replaced. The seating surface of the brass sleeve should be inspected and replaced if necessary.
Location of the 328970 O-Ring Seal (tip).

Parts alternator Caterpillar catalog:

6T1395 ALTERNATOR GP
3114, 3116, 3126, 3126B, 3176B, 3176C, 3196, 3208, 3304, 3304B, 3306, 3306B, 3406, 3406B, 3406C, 3406E, 3408, 3408B, 3408C, 3412, 3412C, 3412D, 3412E, C-12, C15, C18, G3304, G3304B, G3306, G3306B, G34...
2N6398 ALTERNATOR AS
3208, 3304, 3306, 3406, 3406B, 3408, 3412, D342, D342C, D343, G3306, G342C, G343
6T1396 ALTERNATOR GP-CHARGING
3114, 3116, 3126, 3126B, 3176B, 3176C, 3196, 3208, 3304, 3306, 3306B, 3406B, 3406E, C-12, C15, C18, CB-614, G3304, G3306
2330712 ALTERNATOR GP-CHARGING
140H, 143H, 14H, 160H, 163H, 16H
9X7803 ALTERNATOR GP-CHARGING
120H, 120H ES, 120H NA, 12H, 12H ES, 12H NA, 135H, 135H NA, 140H ES, 140H NA, 143H, 14H NA, 160H ES, 160H NA, 163H NA, 16H NA, 24H, 30/30, 3116, 3126B, 3176B, 3176C, 3196, 3306C, 330B L, 3406B, 3406C,...