Standard Ignition TS-186 Engine Coolant Temperature Sender

Engine Coolant Temperature Sender Overview

Standard Ignition TS-186 is an engine coolant temperature sender built for vehicles that use a gauge-based temperature display. It uses a screw-on mounting style with a male round connector and a single male stud terminal for a direct electrical connection. This TS-186 coolant temperature sender is listed for select Buick, Dodge, Oldsmobile, Pontiac, and Chrysler applications, including 1988-1991 Buick LeSabre and 1988-1991 Pontiac Bonneville.

Key Features

• Screw-on attachment method for service replacement
• Male round connector with one connector and one stud terminal
• Factory-calibrated switching point for specified temperature actuation
• Thermal design uses a wax element and bimetal contact movement for precise electrical response
• Built with high-grade materials for professional repair use
• Standard Ignition TS-186 for gauge-equipped cooling system applications

Detailed Description

Standard Ignition TS-186 is an engine coolant temperature sender designed to signal the temperature gauge in the instrument cluster. The internal thermal design uses calibrated wax and a formed bimetal contact arm to create a controlled electrical response at the specified temperature. Each unit is tested during production to confirm actuation at the intended set point, helping maintain accurate gauge operation in daily driving and diagnostic use. This part cross-references Gates 85013 for the same application.

Compatible vehicle coverage includes 1988-1991 Buick LeSabre, 1990-1991 Dodge B150, 1990-1991 Dodge B250, 1990-1991 Dodge B350, 1988-1991 Dodge Dakota, 1990 Dodge Ramcharger, 1988-1991 Pontiac Bonneville, 1988-1990 Oldsmobile 98, 1989-1991 Oldsmobile Delta 88, and 1988 Chrysler Fifth Avenue. The TS-186 part number is also commonly searched as TS186 for gauge-equipped cooling system service.

What It Helps Fix

• Inaccurate or erratic coolant temperature gauge readings
• Gauge needle that stays low, reads high, or does not respond normally
• Failed sender causing poor temperature signal to the dash gauge
• Temperature display issues on vehicles with analog gauges
• Service replacement needs on aging cooling system electrical components

Installation Notes and Tips

Verify the vehicle uses a gauge-style temperature sender before ordering. Match the connector style, terminal layout, and mounting method to the original part. Clean the threaded port before installation and inspect the connector for corrosion or looseness. Confirm the cooling system is full and operating normally after replacement so the gauge can reflect actual engine temperature. For fitment, this part is listed for 1989-1991 Buick LeSabre, 1990-1991 Dodge B150, 1990-1991 Dodge B250, 1990-1991 Dodge B350, 1988-1991 Dodge Dakota, 1991 Oldsmobile Delta 88, 1988-1991 Pontiac Bonneville, 1990 Dodge Ramcharger, 1988-1990 Oldsmobile 98, 1989-1990 Oldsmobile Delta 88, 1988 Chrysler Fifth Avenue, and 1988 Oldsmobile Delta 88.

Quality Assurance

Standard Ignition manufactures this sender with complete quality control from component selection through final testing. Each unit is calibrated and checked for switch actuation at its specified temperature to support consistent gauge performance.