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Cummins 12V 135-AMP Delco Style 19-SI 4-Wire Hook-up


Delco Style 19SI 4-Wire Alternator, Used On Cummins Diesel Engines Supplied With an 8 Groove Serpentine Pulley.
ALTERNATOR 21005 REPLACES # 21004 a 3-Wire Alternator, Cummins #3934778;3675254RX; 3675256RX Neg Ground.
REPLACES BOTH OE# 3934778 & 3934777

DELCO # 10459316; 10459469; 19009950; 19009952; 19009957

Cummins Numbers 4938604 & 5282840

SKU: 21005 Categories: , Tag:

Key Features:

  • Delco Style 19SI 4-Wire Alternator: This alternator, styled after the Delco Style 19SI, offers a 4-wire hook-up that simplifies the installation process for your marine equipment, ensuring efficiency and reliability.
  • High-Performance Serpentine Pulley: Supplied with an 8-groove serpentine pulley, this alternator optimizes power transmission, ensuring your marine equipment operates at peak performance.
  • Cummins Alternator Replacement: This alternator is designed to replace Cummins #3934778, #3675254RX, and #3675256RX, making it the ideal choice for Cummins Diesel Engines.
  • Replaces Both OE# 3934778 and 3934777: It’s a dependable replacement for both OE# 3934778 and 3934777, ensuring compatibility and quality.
  • Compatible with Delco Models: This alternator is also compatible with Delco models #10459316, 10459469, 19009950, 19009952, and 19009957.
  • Cummins Numbers 4938604 & 5282840: It’s compatible with Cummins numbers 4938604 and 5282840, making it the perfect power source for your Cummins Diesel Engine.
  • Designed for Negative Ground Systems: This alternator is designed for negative ground systems, ensuring stable and reliable performance for your marine adventures.
  • Specifications:
  • Product Name: Cummins 12V 135-AMP Delco Style 19-SI Alternator
  • Voltage: 12V
  • Amperage: 135-Amp
  • Compatibility: Ideal for Cummins Diesel Engines
  • Wire Hook-Up: 4-Wire
  • Pulley: 8-groove serpentine pulley included
  • Replaces Cummins Models: #3934778, #3675254RX, #3675256RX, and more
  • Replaces OE#: 3934778 and 3934777
  • Compatible with Delco Models: #10459316, 10459469, 19009950, 19009952, 19009957
  • Cummins Numbers: 4938604 and 5282840
  • Ground: Negative Ground
  • Warranty: 1 year

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