2D0121350 Viscous Fan Clutch Assembly for VOLKSWAGEN
Product: Viscous Fan Clutch Assembly
Primary OE: 2D0121350
Item code: VM01012-001
Cross-reference numbers:
No additional interchange number is listed in the source record.
Brand: VOLKSWAGEN
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.
2D0121350 Viscous Fan Clutch Assembly for VOLKSWAGEN
Designed for comparison with the original VOLKSWAGEN cooling-fan drive, this assembly is indexed by 2D0121350. Catalogue code VM01012-001 keeps its mounting and hub details traceable.
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 | 2D0121350 |
| Cross-reference numbers | No additional reference listed |
| Vehicle brand | VOLKSWAGEN |
| Model reference | Model not confirmed; verify by OE, engine and original unit |
| Yongshang Auto SKU | VM01012-001 |
| Supply position | Aftermarket wholesale replacement |
How the Viscous Coupling Works
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.
Constant fan roar, weak airflow at idle, overheating in traffic, hub wobble or silicone-fluid leakage can indicate fan-clutch wear, although the complete cooling system should be diagnosed.
Mechanical Fitment Checklist
A reliable VOLKSWAGEN match requires agreement in OE number 2D0121350, 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.
Quality-Control Options
The agreed QC scope can include dimensional sampling, visible leakage inspection, rotation feel, item-code labels and shipment photographs.
Ordering Specification Notes
A complete purchasing file for VOLKSWAGEN should connect 2D0121350 and VM01012-001 with engine data, hub height, mounting style, fan bolt circle and original-unit photographs. Recording these details before sample approval gives sourcing, warehouse and after-sales teams a consistent reference for future orders.
Wholesale and Procurement Information
Send OE 2D0121350, item VM01012-001, target market and annual demand for evaluation. Original-unit photos improve review when application data is incomplete.
Frequently Asked Questions
How does 2D0121350 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 VM01012-001?
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 2D0121350 Fan Clutch Quote
Contact Yongshang Auto with 2D0121350, VM01012-001, quantity and destination country for a fitment review and wholesale proposal for VOLKSWAGEN.
Fitment notice: OE and model references support identification but do not replace engine-specific catalogue checks or comparison with the original fan clutch.
