Standard Ignition TS-265 Engine Coolant Temperature Sender

Engine Coolant Temperature Sender for Gauge Systems

Standard Ignition TS-265 is an engine coolant temperature sender built for gauge-equipped applications that need a direct electrical signal from the cooling system. It uses a bolt-on design with a round female plug-in connector and a single male blade terminal for straightforward replacement in the correct application.

Compatible With 1991-1997 Chevrolet and GMC truck and van platforms, including Chevrolet P30, C1500, C2500, C3500, K2500, K3500, G30, R3500, V3500, and GMC G3500, P3500, Savana 3500, C2500, C3500, K2500, K3500, R3500, and V3500 applications that use a gauge-style temperature sender.

Key Features

• Standard Ignition TS-265 engine coolant temperature sender
• Bolt-on attachment method for the specified threaded port
• 1/2-14 thread size
• Round female connector with plug-in style connection
• Single male blade terminal
• Factory-calibrated and tested for specified actuation temperature
• Built with a formed bimetal contact arm for precise switching action

Detailed Description

TS-265 is engineered for vehicles that rely on a coolant temperature sender to communicate engine temperature to the dash gauge. Standard Ignition uses calibrated thermal-switch construction and controlled manufacturing processes to help ensure consistent electrical contact at the specified temperature point. The design combines high-grade materials with a formed bimetallic contact arm, supporting accurate signal transfer in the cooling system circuit.

This part cross-references AMS Automotive 4154 for the same application. It is also listed with interchange references including Dynomax 36427. For buyers searching by vehicle, this part number is commonly associated with Chevrolet C2500, Chevrolet K3500, and GMC P3500 gauge applications.

Common Issues This Part May Resolve

• Inaccurate or erratic coolant temperature gauge readings
• Gauge needle staying low, high, or not responding
• Intermittent sender signal to the instrument cluster
• Temperature indication problems after sender wear or internal contact failure
• Replacement needs on gauge-equipped Chevrolet and GMC cooling systems

Installation Notes and Tips

Verify the connector style, terminal layout, and 1/2-14 thread size before installation. This sender is listed for gauge applications, so confirm the vehicle uses a compatible gauge-style circuit rather than a warning-light-only setup. Clean the mounting threads and inspect the connector for corrosion before connecting the harness.

For fitment searches, this part is commonly referenced as Fits 1991-1997 Chevrolet P30, Fits 1991-1995 Chevrolet C2500, and Fits 1994-1997 GMC P3500, with additional coverage across Chevrolet and GMC C/K trucks and vans in the 1991-1997 range.

Quality Assurance

Standard Ignition manufactures this sender with complete process control from component selection through final testing. Each unit is calibrated and checked to confirm switch actuation at the specified temperature, supporting consistent performance in service applications.