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Alternator Conversion Harness Adapter – Replaces PT2145 - Fits Delco 10SI 12SI 15SI to CS130 CS144 – 2-Wire Plug with Built-in Resistor – Replaces 12102921, 110-12055, 500-12036 in Kuwait Alternator Conversion Harness Adapter – Replaces PT2145 - Fits Delco 10SI 12SI 15SI to CS130 CS144 – 2-Wire Plug with Built-in Resistor – Replaces 12102921, 110-12055, 500-12036 in Kuwait

Alternator Conversion Harness Adapter – Replaces PT2145 - Fits Delco 10SI 12SI 15SI to CS130 CS144 – 2-Wire Plug with Built-in Resistor – Replaces 12102921, 110-12055, 500-12036

KWD 6
Brand
STS Parts
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Special Features

  • 🔧 Convert Delco SI to CS Alternators – Enables plug-and-play conversion from older 10SI, 12SI, 15SI, 17SI, or 27SI Delco alternators to CS121, CS130, or CS144 models.
  • ⚡ Built-in Resistor – Designed for vehicles with voltmeters (not warning lights). Protects internal voltage regulator from surge damage.
  • 🧩 OEM-Style 2-Wire Adapter – Includes factory-style connector and durable wiring for a clean and easy installation.
  • 🛠️ Application Specific Fit – Ideal for GM/Delco alternator upgrades in classic vehicles, hot rods, off-road applications, or rebuilds.
  • 🚀 Ready to Install – No cutting, no splicing. Comes pre-wired and measures 9.4" in length for flexible routing.

Description

STS Parts Alternator Conversion Harness – Delco SI to CS130 / CS144 with Resistor This high-quality 2-wire conversion lead is the reliable solution for upgrading your GM vehicle's alternator system from a Delco SI-series (10SI, 12SI, 15SI, 17SI, 27SI) to a modern CS-series alternator (CS121, CS130, or CS144). Designed with an inline resistor, this harness is ideal for vehicles using a voltmeter (not a charge warning light). Why Upgrade? Converting to a CS alternator provides improved efficiency, better charging at lower RPMs, and longer component life. This plug-and-play adapter makes the swap quick, safe, and seamless. 🔩 Technical Specifications: Length: 9.4 in (240mm) Wire Count: 2 Resistor Type: Inline (pre-installed) Weight: 0.09 lbs (0.04 kg) For Use With: Voltmeter-equipped vehicles only (not indicator light systems) 🔁 Cross Reference Part Numbers: Arrowhead: 110-12055 Delco: 12102921, 8078 J&N Electrical: 500-12036 Replaces PT2145 🚗 Fits Alternator Series: From: Delco 10SI, 12SI, 15SI, 17SI, 27SI To: CS121, CS130, CS144

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