Delphi TS10051 Engine Coolant Temperature Sender

Engine Coolant Temperature Sender for OE-Style Accuracy

The Delphi TS10051 engine coolant temperature sender is built for direct replacement service on a wide range of Mazda, Chevrolet, Pontiac, Buick, GMC, and Oldsmobile applications. With OE heritage behind the design, it delivers the signal your cooling system and engine management rely on for accurate temperature reporting.

Fits 2012-2018 Mazda 3, N/A; Fits 2014-2017 Mazda 6, N/A; Fits 2013-2016 Mazda CX-5, N/A; Fits 2011-2014 Mazda 2, N/A; Fits 2010-2013 Mazda 3, N/A; Fits 2004-2011 Mazda RX-8, N/A; Fits 2000-2003 Mazda Protege, N/A; Fits 1995-1996 Mazda Protege, N/A; Fits 2002-2003 Mazda Protege5, N/A; Fits 1995-2002 Mazda Millenia, N/A; Fits 1994-1997 Mazda 626, N/A; Fits 1994-1997 Mazda Miata, N/A; Fits 1994-1997 Mazda MX-6, N/A; Fits 1994-1995 Mazda MX-3, N/A; Fits 1991 Chevrolet Corsica, N/A; Fits 1985-1990 Pontiac Grand Am, N/A; Fits 1986-1988 Buick LeSabre, N/A; Fits 1986-1988 Chevrolet S10, N/A; Fits 1986-1988 Chevrolet S10 Blazer, N/A; Fits 1986-1988 GMC S15, N/A; Fits 1986-1988 GMC S15 Jimmy, N/A; Fits 1986-1988 Oldsmobile Delta 88, N/A; Fits 1987-1988 Pontiac Bonneville, N/A; Fits 1987-1988 Pontiac Fiero, N/A; Fits 1986-1987 Buick Skyhawk, N/A; Fits 1986-1987 Buick Skylark, N/A; Fits 1986-1987 Oldsmobile 98, N/A; Fits 1986-1987 Oldsmobile Calais, N/A; Fits 1984-1986 Pontiac Firebird, N/A; Fits 1986 Pontiac Sunbird, N/A; Fits 1984-1985 Buick Century, N/A; Fits 1984-1985 Buick Riviera, N/A; Fits 1984-1985 Chevrolet Caprice, N/A; Fits 1984-1985 Chevrolet Impala, N/A; Fits 1984-1985 Pontiac J2000 Sunbird, N/A; Fits 1984 Chevrolet El Camino, N/A; Fits 1984 Chevrolet Monte Carlo, N/A.

• Blade terminal design with 2 terminals for secure electrical connection
• 1 square connector for straightforward sensor replacement
• Built to report coolant temperature to the vehicle’s gauge or engine control system
• OE heritage and application knowledge carried into the aftermarket part
• Package includes the engine coolant temperature sender and instruction sheet

Detailed Product Overview

Delphi TS10051 is an engine coolant temperature sender used to monitor coolant temperature in the engine cooling system. It features a blade terminal type, one square connector, and two terminals, making it a practical replacement for vehicles that require this connector style. Delphi draws on more than a century of OE experience, and that background is reflected in the part’s fit, function, and application coverage. This part cross-references Standard Ignition TX40 for the same application.

Common Problems This Sender Can Address

• Inaccurate coolant temperature readings on the dash gauge
• Erratic temperature signal to the engine management system
• Hard-to-diagnose cooling system warning behavior
• Replacement needs after sensor wear, corrosion, or electrical failure
• Service issues on Mazda 3, Mazda 6, Mazda CX-5, and Mazda RX-8 cooling systems

Installation Notes and Tips

Verify connector shape, terminal count, and thread/application match before installation. On some Mazda applications, the sender location varies by model, including block-mounted and radiator-mounted positions, so confirm the original sensor location before removal. Inspect the connector for corrosion or damaged terminals, and clear any stored fault codes after installation if the vehicle uses the sender as part of engine management or gauge control.

Quality Assurance

Delphi builds this coolant temperature sender using OE-focused engineering knowledge developed through long-term supplier experience with major automakers. The result is a replacement part designed around original-equipment expectations for electrical connection, signal reporting, and application fit.