Application boundary
Engine code, sensor location, coolant housing and control-system generation must be resolved before a proposed part is treated as relevant.
Corolla electrical & sensors · procurement guide
Match the coolant sensor by location, thread, probe and connector while retaining the exact engine branch.

Quote definition
No universal OE number can safely cover this component family. A useful request combines vehicle, part, commercial and packing evidence that can be checked in writing.
Engine code, sensor location, coolant housing and control-system generation must be resolved before a proposed part is treated as relevant.
Record thread, probe length, hex, seal type, connector key and terminal count; connector or mounting similarity alone is not enough.
Write the request as sensor only, sealing washer or O-ring, connector pigtail or housing-inclusive line, with included hardware and seals stated separately.
Use antistatic bags, protect probes and threads and keep seals paired with the correct sensor.
OE evidence gate
Corolla applications for engine coolant temperature sensors divide by engine code, sensor location, coolant housing and control-system generation. No single OE number is published without a reconciled vehicle and installed-part record.
VIN or chassis/model code, production month, complete powertrain or equipment branch, old-part number and all relevant views.
No current supersession, universal fitment, genuine/OEM supply, inventory, price or lead time is implied.
Decision record
| Decision point | Evidence to send |
|---|---|
| Vehicle branch | Record the Corolla generation, chassis/model code, production month, body style and destination market before comparing engine coolant temperature sensors. |
| System application | Confirm engine code, sensor location, coolant housing and control-system generation; a sales name or nominal model year does not resolve this branch. |
| Physical interface | Compare thread, probe length, hex, seal type, connector key and terminal count, using clear installed and removed-part photos wherever possible. |
| Requested assembly | State whether the line covers sensor only, sealing washer or O-ring, connector pigtail or housing-inclusive line; reconcile every supplier photo with a written contents list. |
| Commercial basis | Give quantity per SKU, trial or repeat demand, destination port, preferred Incoterm and any inspection-document requirement. |
| Packing control | Use antistatic bags, protect probes and threads and keep seals paired with the correct sensor. |
Part-specific risk
For Corolla engine coolant temperature sensors, the controlling difference can be thread, probe length, hex, seal type, connector key and terminal count. Keep every proposed part tied to the vehicle record and installed component; a broad year-range cross reference is not approval evidence.
Parent and sibling routes
Return to the complete system directory and identification guidance.
Open directory →Resolve generation, body, powertrain, production and market evidence before part matching.
Check the vehicle →Review engine code, block location, emissions calibration and production phase and the required physical evidence.
View guide →Review tank design, engine or hybrid branch, market emissions system and sender arrangement and the required physical evidence.
View guide →Buyer FAQ
Start with generation, chassis/model code and production month, then resolve engine code, sensor location, coolant housing and control-system generation. That branch is more useful than model year alone.
Photograph the installed position, label and mounting or connector faces, then record thread, probe length, hex, seal type, connector key and terminal count. Keep every measurement tied to the same removed component.
State sensor only, sealing washer or O-ring, connector pigtail or housing-inclusive line. List seals, brackets, motors, modules, hardware or paired sides separately so quotations can be compared on the same contents.
Use antistatic bags, protect probes and threads and keep seals paired with the correct sensor.
The research did not establish one safely scoped public reference for this broad component page. Send the old-part number, VIN or chassis/model code, production month and installed-part evidence instead.
Corolla parts RFQ
Include the generation or year, engine or hybrid version, OE/reference numbers, quantities, destination and packing request. Attach a spreadsheet or old-part photos when useful.