MT126485 Viscous Fan Clutch Assembly for MERCEDES-BENZ
Product: Viscous Fan Clutch Assembly
Primary OE: MT126485
Item code: BZ01012-035
Cross-reference numbers:
No additional interchange number is listed in the source record.
Brand: MERCEDES-BENZ
Function: Helps the radiator reject heat without a permanently locked fan drive.
Supply: Prepared for international quotation, mixed orders and repeat procurement.
Fitment check: Validate engine application, rotation and every fan-side mounting point.
Quality note: QC options include dimensional sampling, appearance and shipment photos.
MT126485 Viscous Fan Clutch Assembly for MERCEDES-BENZ
The product shown belongs to the MT126485 thermal fan clutch family for MERCEDES-BENZ. Internal item BZ01012-035 should accompany every technical or commercial enquiry.
Inside the clutch, calibrated fluid shear links the input hub to the fan mounting section. The thermal control reacts to hot air leaving the radiator so fan assistance increases during demanding conditions.
Product Technical Specifications
| Component | Viscous fan clutch assembly |
|---|---|
| Primary OE reference | MT126485 |
| Cross-reference numbers | No additional reference listed |
| Vehicle brand | MERCEDES-BENZ |
| Model reference | Model not confirmed; verify by OE, engine and original unit |
| Yongshang Auto SKU | BZ01012-035 |
| Supply position | Aftermarket wholesale replacement |
Role in the Engine Cooling System
By varying the amount of torque delivered to the fan, the viscous coupling supports stable coolant temperature during idling, towing, climbing and hot-weather operation.
Inspect for cracked blades, loose fasteners, shaft play and contact marks before replacing the hub. A damaged fan can overload a new clutch and create a safety risk.
Application Verification Guide
A reliable MERCEDES-BENZ match requires agreement in OE number MT126485, mounting method, hub offset, fan pattern and available clearance inside the shroud.
- Confirm the OE number and usable cross-references.
- Match vehicle model, engine, chassis and production period.
- Check drive-side thread or flange and rotation direction.
- Measure hub height, pilot diameter and fan bolt circle.
- Verify blade alignment and clearance inside the shroud.
Installation and Cooling-System Checks
Installation should be completed by a qualified technician. Follow the specified thread direction and torque procedure, inspect the fan and water-pump bearing, replace damaged hardware, and confirm that the blade rotates freely without contacting the radiator or shroud. Test the vehicle under the appropriate warm operating conditions after assembly.
Wholesale Inspection Scope
The agreed QC scope can include dimensional sampling, visible leakage inspection, rotation feel, item-code labels and shipment photographs.
Ordering Specification Notes
To reduce selection risk, treat MT126485 and BZ01012-035 as the start of the MERCEDES-BENZ specification. Add thread or flange details, pilot diameter, bolt pattern, hub offset and shroud clearance. The resulting checklist supports quotation, approval, receiving and installation review.
Wholesale and Procurement Information
Send OE MT126485, item BZ01012-035, target market and annual demand for evaluation. Original-unit photos improve review when application data is incomplete.
Frequently Asked Questions
How does MT126485 respond to temperature?
The thermal mechanism changes viscous coupling behavior as hot radiator-exit air reaches the clutch, increasing fan drive when required.
What if the new hub sits closer to the radiator?
Stop and recheck the application. Incorrect offset can reduce clearance and risk contact with the radiator or shroud.
Should rotation direction be verified?
Yes. Fan design and clutch operation must suit the intended rotation and mounting arrangement.
What QC can be requested for BZ01012-035?
Visible-condition checks, dimensional sampling, product photographs, labels and carton review can be discussed.
What affects production lead time?
Quantity, stock, manufacturing schedule, inspection scope and packaging requirements all influence the confirmed plan.
Request a MT126485 Fan Clutch Quote
Contact Yongshang Auto with MT126485, BZ01012-035, quantity and destination country for a fitment review and wholesale proposal for MERCEDES-BENZ.
Fitment notice: OE and model references support identification but do not replace engine-specific catalogue checks or comparison with the original fan clutch.
