Delco 21SI Series Farm, Industrial & Truck Alternators


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Farm, Industrial & Truck Alternators Units now ship from 12 warehouse locations throughout the United States. We will ship from your nearest location. Warehouse locations: Los Angeles CA, Denver CO, Orlando FL, Atlanta GA, Chicago IL, Grand Rapids MI, Kansas City MO, Charlotte NC, Cleveland OH, Allentown PA, Memphis TN, Dallas TX

1191500DR1 delco 21si heavy duty truck industrial alternator

1191500DR1 - Delco 21SI type  115 amps., 12 volts, 1-wire system, Negative Ground, without Pulley

Used on: Cummins, Detroit Diesel, Ford Truck, IHC, Mack, Mavistar, Volvo White-GMC

Replaces: 1117880, 1117894, 1117906, 1117925, 1117931, 1117942, 1117947, 1117950, 1117951, 1117953, 1117954, 1117955, 1117956; 19010155

Lester: 7667, 7670, 7671, 7976, 8011, 8012, 8013

Universal R-terminal, 10-24 I-terminal, 1-4" B+

100% New

This alternator is available in our Patent-Pending Extreme Duty Dual Rectifier design, Click for details. Heavy Duty 21Si Alternator and Heavy Duty 22Si type Alternator

Click here for Price


1191600DR1 delco 21si truck heavy duty alternator

1191600DR1 - Delco 21Si type  100 amps., 12 volts, 3-Wire System, Negative Ground, without Pulley

Used on: Chevrolet Kodiak, GMC Topkick 6.6L

Replaces: 1117895, 1117903, 1117927

Lester: 7666

10-24 R-term., 5-16" B+

100% New

This alternator is available in our Patent-Pending Extreme Duty Dual Rectifier design, Click for details. Heavy Duty 21Si Alternator and Heavy Duty 22Si type Alternator

 

Click here for Price


1191700DR1 delco negative ground truck heavy duty alternator

1191700DR1 - Delco type 21SI 130 amps., 12 volts, 3-Wire System, Negative Ground, Without Pulley

Used on: Chevrolet Truck B6, B7 Series, Kodiak 6.6L; GMC Topkick6.6L

Replaces: 1117896, 1117904, 1117928

Lester: 7971

10-24 R-term., 5-16" B+

100% New

This alternator is available in our Patent-Pending Extreme Duty Dual Rectifier design, Click for details. Heavy Duty 21Si Alternator and Heavy Duty 22Si type Alternator

Click here for Price


1191800DR1 delco heavy duty ford navistar truck alternator

1191800DR1 - Delco 21Si type  130 amps., 12 volts, 1-wire System, Negative Ground, without Pulley

Used On: Ford Truck, Navistar Truck

Replaces: 1117911, 1117914, 1117929, 1117932, 1117946, 1117949, 1117957, 1117958, 1117959, 1117962

Lester: 7564, 7565; 7654, 7659; 8026, 8027

Univ. R-term., 10-24 I-term., 1-4" B+

100% New

This alternator is available in our Patent-Pending Extreme Duty Dual Rectifier design, Click for details. Heavy Duty 21Si Alternator and Heavy Duty 22Si type Alternator

Click here for Price


1229100DR1 delco diesel truck heavy duty alternator

1229100DR1 - Delco 21Si type 70 amps., 24 volts, 1-wire System, Negative Ground, without Pulley

Used On: Cummins, Timberjack with Cummins 5.9L, 8.3L Diesel

Replaces: 1117897, 1117900, 19010111, 19010182

Lester: 7642, 8003

Univ. R-term., M4 I-term., M6 B+

100% New

This alternator is available in our Patent-Pending Extreme Duty Dual Rectifier design, Click for details. Heavy Duty 21Si Alternator and Heavy Duty 22Si type Alternator

Click here for Price


1229200DR1 delco heavy duty large equipment alternator

1229200DR1 - Delco 21Si type,  70 amps., 24 volts, 1-wire System, Negative Ground, without Pulley

Used On: Fiatallis Industrial Equipment

Replaces: 1117915

Lester: 8030

10-24 I-term., 5/16" B+

100% New

This alternator is available in our Patent-Pending Extreme Duty Dual Rectifier design, Click for details. Heavy Duty 21Si Alternator and Heavy Duty 22Si type Alternator

Click here for Price


1229700DR1 delco freightliner truck heavy duty charging system

1229700DR1 - Delco 21SI type, 100 amps., 12 volts, 1-wire System, Negative Ground, without Pulley

Used On: Freightliner, Kenworth, Volvo Trucks, Western Star

Replaces: 19010101,19010105, 19010181

Lester: 7662

Univ. R-term., 10-24 I-term., 5-16" B+

100% New

This alternator is available in our Patent-Pending Extreme Duty Dual Rectifier design, Click for details. Heavy Duty 21Si Alternator and Heavy Duty 22Si type Alternator

Click here for Price


1229900DR1 delco ford navistar truck heavy duty charging system

1229900DR1 - Delco 21SI type, 145-160 amps., 12 volts, 1-wire System, Negative Ground, without Pulley

Used On: Ford Truck, Navistar Truck, IHC

Replaces: 1117916, 1117924, 1117933, 1117948, 1117952, 19010156

Lester: 7644, 7669, 7672

Univ. R-term., 10-24 I-term., 1/4" B+

100% New

This alternator is available in our Patent-Pending Extreme Duty Dual Rectifier design, Click for details. Heavy Duty 21Si Alternator and Heavy Duty 22Si type Alternator

Click here for Price


1230000DR1 delco caterpillar farm heavy duty charging system

1230000DR1 - Delco 21SI type, 130 amps., 12 volts, 1-wire System, Negative Ground, without Pulley

Used On: AGCO AG, Caterpillar, Ford AG, Freightliner, John Deere, Kenworth, Mack, New Holland, Peterbilt, Volvo Truck, Western Star

Replaces: 1117905, 1117909, 1117937, 1117943, 1117965, 1117966; 19010147, 19010196

Lester: 7673, 7680, 7681

Univ. R-term., 10-24 I-term., 5/16" B+

100% New

This alternator is available in our Patent-Pending Extreme Duty Dual Rectifier design, Click for details. Heavy Duty 21Si Alternator and Heavy Duty 22Si type Alternator

Click here for Price


1233300DR1 delco freightliner farm truck heavy duty charging system

1233300DR1 - Delco 21Si type , 115 amps., 12 volts, 1-wire System, Negative Ground, without Pulley

Used On: Freightliner, Kenworth, Mack, Peterbilt, Volvo Truck, Western Star

Replaces: 1117885, 1117886, 1117887, 1117890, 1117892, 1117910, 1117923, 1117941

Lester: 7641, 7660, 7662, 7663, 7664, 7668, 7683

Univ. R-term., 10-24 I-term., 5/16" B+

100% New

This alternator is available in our Patent-Pending Extreme Duty Dual Rectifier design, Click for details. Heavy Duty 21Si Alternator and Heavy Duty 22Si type Alternator

Click here for Price


1233400DR1 delco kenworth farm truck heavy duty charging system `

1233400DR1 - Delco 21SI type, 145-160 amps., 12 volts, 1-wire System, Negative Ground, without Pulley

Used On: Freightliner, Kenworth, Mack, Peterbilt, Volvo Truck

Replaces: 1117917, 1117919, 1117920, 1117921, 1117922, 1117934, 1117964, 19010202

Lester: 7679, 7685, 7686, 8020, 8021, 8022, 8023

Univ. R-term., 10-24 I-term., 5/16" B+

100% New

This alternator is available in our Patent-Pending Extreme Duty Dual Rectifier design, Click for details. Heavy Duty 21Si Alternator and Heavy Duty 22Si type Alternator

Click here for Price