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Standard Ignition TS-321 Engine Coolant Temperature Sender
| Brand | Standard Ignition TS-321 |
|---|---|
| Attachment Method | Bolt On |
| Connector Gender | Male |
| Connector Shape | Spade |
| Connector Type | Plug In |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Thread Size | M12-1.25 |
| Fits | Nissan and Mercury · 44 vehicles |
Bolt-on installation. Plug-in connector and single blade terminal simplify replacement.
Threaded fit. M12-1.25 thread size for a secure coolant temperature sender install.
Compact sender design. Built as an engine coolant temperature sender for accurate temperature reporting.
Cross-references Standard Ignition TS-321, 250800B000 and 19021180 for the same application. See all 8.
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Not what you need? See all Engine Coolant Temperature Sender options
Engine Coolant Temperature Sender for Nissan and Mercury
Standard Ignition TS-321 is an engine coolant temperature sender built for vehicles equipped with gauges or a coolant temperature indicator light on the dashboard. It uses a bolt-on mounting style with a single male spade/blade connection and an M12-1.25 thread size for direct replacement service.
- Engine coolant temperature sender for gauge and indicator-light applications
- Bolt-on design with M12-1.25 thread size
- 1 male spade connector and 1 male blade terminal
- Plug-in connector type for straightforward electrical hookup
- No mounting bracket(s) included
Fitment Details
- Fits 2004-2007 Nissan Quest, N/A — fits engines with gauges.
- Fits 1993-2002 Nissan Quest, N/A — fits engines with gauges.
- Fits 2000-2004 Nissan Frontier, N/A — fits engines with gauges.
- Fits 2000-2004 Nissan Xterra, N/A — fits engines with gauges.
- Fits 1993-2002 Mercury Villager, N/A — fits engines with gauges.
- Fits 1993-2002 Mercury Villager, N/A — compatible with vehicles equipped with a coolant temperature indicator light on the dashboard.
How This Sender Is Used
- Restores coolant temperature signal input for the dash gauge
- Addresses inaccurate or erratic temperature readings
- Helps resolve a non-functioning temperature warning light
- Supports replacement of a failed factory sender on Nissan Quest, Frontier, and Xterra applications
- Provides a direct-fit service part for Mercury Villager cooling system monitoring
Installation Notes
Verify the thread size, connector style, and engine application before installation. Clean the mounting surface and inspect the electrical terminal for corrosion or looseness before connecting the harness. This part cross-references TU215 and WT668 for the same application.
Quality Assurance
Standard Ignition TS-321 is cataloged as an OE-style replacement coolant temperature sender for the listed Nissan and Mercury applications. Confirm the vehicle uses gauges or a coolant temperature indicator light, since fitment is application-specific.
This part fits 44 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2007 | Nissan | Quest | — | — | N/A | Fits engines with gauges. |
| 2006 | Nissan | Quest | — | — | N/A | Fits engines with gauges. |
| 2005 | Nissan | Quest | — | — | N/A | Fits engines with gauges. |
| 2004 | Nissan | Frontier | 3.3L | V6 | N/A | Fits engines with gauges. |
| 2004 | Nissan | Quest | — | — | N/A | Fits engines with gauges. |
| 2004 | Nissan | Xterra | — | — | N/A | Fits engines with gauges. |
| 2003 | Nissan | Frontier | 3.3L | V6 | N/A | Fits engines with gauges. |
| 2003 | Nissan | Xterra | 3.3L | V6 | N/A | Fits engines with gauges. |
| 2002 | Mercury | Villager | — | — | N/A | Fits engines with gauges. |
| 2002 | Mercury | Villager | 3.3L | V6 | N/A | Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard. |
| 2002 | Nissan | Frontier | 3.3L | V6 | N/A | Fits engines with gauges. |
| 2002 | Nissan | Quest | — | — | N/A | Fits engines with gauges. |
| 2002 | Nissan | Xterra | 3.3L | V6 | N/A | Fits engines with gauges. |
| 2001 | Mercury | Villager | — | — | N/A | Fits engines with gauges. |
| 2001 | Mercury | Villager | 3.3L | V6 | N/A | Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard. |
| 2001 | Nissan | Frontier | 3.3L | V6 | N/A | Fits engines with gauges. |
| 2001 | Nissan | Quest | — | — | N/A | Fits engines with gauges. |
| 2001 | Nissan | Xterra | 3.3L | V6 | N/A | Fits engines with gauges. |
| 2000 | Mercury | Villager | — | — | N/A | Fits engines with gauges. |
| 2000 | Mercury | Villager | 3.3L | V6 | N/A | Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard. |
| 2000 | Nissan | Frontier | 3.3L | V6 | N/A | Fits engines with gauges. |
| 2000 | Nissan | Quest | — | — | N/A | Fits engines with gauges. |
| 2000 | Nissan | Xterra | 3.3L | V6 | N/A | Fits engines with gauges. |
| 1999 | Mercury | Villager | — | — | N/A | Fits engines with gauges. |
| 1999 | Mercury | Villager | 3.3L | V6 | N/A | Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard. |
| 1999 | Nissan | Quest | — | — | N/A | Fits engines with gauges. |
| 1998 | Mercury | Villager | — | — | N/A | Fits engines with gauges. |
| 1998 | Mercury | Villager | 3.0L | V6 | N/A | Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard. |
| 1998 | Nissan | Quest | — | — | N/A | Fits engines with gauges. |
| 1997 | Mercury | Villager | — | — | N/A | Fits engines with gauges. |
| 1997 | Mercury | Villager | 3.0L | V6 | N/A | Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard. |
| 1997 | Nissan | Quest | — | — | N/A | Fits engines with gauges. |
| 1996 | Mercury | Villager | — | — | N/A | Fits engines with gauges. |
| 1996 | Mercury | Villager | 3.0L | V6 | N/A | Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard. |
| 1996 | Nissan | Quest | — | — | N/A | Fits engines with gauges. |
| 1995 | Mercury | Villager | — | — | N/A | Fits engines with gauges. |
| 1995 | Mercury | Villager | 3.0L | V6 | N/A | Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard. |
| 1995 | Nissan | Quest | — | — | N/A | Fits engines with gauges. |
| 1994 | Mercury | Villager | — | — | N/A | Fits engines with gauges. |
| 1994 | Mercury | Villager | 3.0L | V6 | N/A | Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard. |
| 1994 | Nissan | Quest | — | — | N/A | Fits engines with gauges. |
| 1993 | Mercury | Villager | — | — | N/A | Fits engines with gauges. |
| 1993 | Mercury | Villager | 3.0L | V6 | N/A | Compatible with vehicles equipped with a coolant temperature indicator light on the dashboard. |
| 1993 | Nissan | Quest | — | — | N/A | Fits engines with gauges. |
| No rows match your filter. | ||||||
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — TS-321250800B00019021180F3XA10884CATS6699TS6699SBTU215WT668