Standard TS321T Engine Coolant Temperature Sender

Engine Coolant Temperature Sender for Nissan and Mercury

Standard TS321T is a direct-fit engine coolant temperature sender for vehicles equipped with a gauge. It uses a male plug-in connector and a male blade terminal for straightforward electrical connection, with materials selected for durability and tested for performance and reliability.

Key Features

• Direct-fit replacement for easier installation
• Engine coolant temperature sender for gauge-equipped applications
• Male connector gender with plug-in connector type
• Male blade terminal design for secure connection
• Built with quality-controlled manufacturing processes
• Standard TS321T part number for accurate ordering and service lookup

Detailed Description

Standard TS321T is an engine coolant temperature sender used in gauge-equipped Nissan Quest, Frontier, and Xterra applications, as well as Mercury Villager models. It is built as a direct replacement to match the original electrical connection style and support accurate coolant temperature signal delivery to the dash gauge. This part cross-references Standard Ignition TS-321 for the same application.

Compatible With 1993-2002 Nissan Quest, with gauge; 2000-2004 Nissan Frontier, with gauge; 2000-2004 Nissan Xterra, with gauge; and 1993-2002 Mercury Villager, with gauge. The TS321T is also referenced in service catalogs under related numbers such as Four Seasons 83006.

What It Helps Address

• Inaccurate coolant temperature gauge readings
• Intermittent or unstable gauge movement
• Failed sender signal to the instrument cluster
• Electrical connection issues at the sender terminal
• Replacement needs after sensor wear or corrosion

Installation Notes and Tips

Verify the vehicle is equipped with a gauge before ordering, since fitment is listed for gauge applications only. Match the connector style, terminal type, and engine application to the original sender before installation. Confirm the part number TS321T against the existing component and vehicle service information for the exact fit.

Quality Assurance

Standard states that this sender is manufactured with quality control maintained throughout the production process and is tested for performance and reliability. The direct-fit design and OE-style electrical configuration support consistent replacement service on Nissan Quest, Frontier, Xterra, and Mercury Villager applications.