16363-31040 Cooling Fan Motor for LEXUS IS250
Part Type: Electric Cooling Fan Motor
Internal Product No.: 6603028
Main OE Reference: 16363-31040
Catalogue Fitment: LEXUS IS250 | LEXUS IS350
Configuration: Supplied in the photographed product configuration
Selection Features: Where the OE is unclear, provide VIN data, original-part photos and dimensions for technical comparison.
Pre-Shipment Check: The motor is compared with the order reference and checked for visible handling damage around the shaft and connector.
MOQ: From 5 pieces
Packaging: Neutral or customized packaging available
Typical Delivery: 30–45 days, subject to quantity and destination
Fitment Check: Do not reuse a damaged or unbalanced blade with a replacement motor; inspect the complete rotating assembly.
Electric Cooling Fan Motor Product Guide
The listed Electric Cooling Fan Motor supports aftermarket repair or sourcing programs where technical details are compared before the order is approved.
Reference and Application Summary
- Component: Electric Cooling Fan Motor
- Primary OE: 16363-31040
- Cross references: No additional confirmed cross-reference is listed.
- Application: LEXUS IS250 | LEXUS IS350
- YoonShan product no.: 6603028
- Configuration: Match the product photographs on this page
How to Confirm Compatibility
Compare OE reference, connector pins, motor body, shaft length and diameter, rotation direction, mounting points and blade attachment before ordering.
One vehicle can use different fan motors across engine, A/C or production variants, so OE and physical comparison are both required.
Pre-Shipment and Workshop Notes
The product is checked for external motor condition, electrical interface and consistency with the photographed configuration.
Never energize an unsecured motor with a blade attached, and keep hands or tools clear during testing.
Product Technical Specifications
| Product type | Cooling Fan Motor |
|---|---|
| Primary OE reference | 16363-31040 |
| Cross-reference numbers | No additional confirmed cross-reference |
| Internal item code | 6603028 |
| Vehicle brand | LEXUS |
| Vehicle model | IS250 |
| Model year | Confirm by vehicle application |
| Installation position | Compatible radiator or condenser fan assembly |
| Product function | Drives the matched cooling-fan blade within the confirmed vehicle assembly |
Operating Context
The motor provides rotational force for the cooling fan after receiving the vehicle control command through the correct electrical circuit.
Unusual noise can come from motor bearings, a cracked blade, loose mounting or foreign material in the fan area.
Overheating does not by itself prove motor failure; coolant flow, radiator condition, sensors and broader fan controls also require inspection.
B2B Ordering Support
Global buyers can request pricing with part reference, quantity, destination and packaging preference.
International delivery coordination is available, while transit method and schedule depend on the consignee location.
Common Procurement Questions
Does a non-running fan always need a motor?
No. Test wiring, relay, fuse, power, ground and control signals before replacement.
How do I confirm rotation direction?
Compare the original motor and blade, then follow the vehicle service data or request a technical review.
What should I send for pricing?
Provide OE number, application, motor photographs, required quantity and destination.
Can an old blade be reused?
Only if it is compatible, undamaged, balanced and approved for the replacement motor.
Request a Quote: Request pricing with original-part photographs, required volume and delivery country.





