12V 6PK A/C Compressor 1K0820859NV
Applicable models:
Reference part number:1K0820859J，1K0820859N，1K0820859NV，1K0820859NX 1K0820808A，1K0820808AV，1K0820808AX 1K0820859H 5N0820803E， 5 N0820803G， 5N0820803H， 5N0820803HV， 5K0820803E，5K0820803EV，5K0820803EX，5K0820803K 5Q0820803Q， 5Q0820803R， 5Q0820803RV， 5Q0820803RX， 8J0260805 6QD820803 8J0260805A
| Rated output : | 12V |
| Pulley : | 6PK |
| Size : | |
| Weight : | Net weight 4.45KG |
| Packaging : | Neutral kraft paper packaging |
| Spot/Pre sale : | Spot goods |
| Warranty : | 1 year |
| Product number : |
| Type : | A/C Compressor |
| Specification : | 12V |
| Pulley : | 6PK |
| Brand : | NUOJIN |
| Number : | 5Q0820803J |
| Quality : | NEW |
| Delivery time : | 30 days |
Overview of the 1K0820859NV A/C Compressor
An A/C compressor is a positive-displacement pump driven by the engine belt. On the 1K0820859NV unit the electromagnetic clutch engages the pulley on demand, and the displacement is controlled internally to match the cooling load.
The unit is supplied complete and matched to the original interfaces, so it fits with standard tools and the existing wiring or pipework. Interfaces are what decide service life on a part like this, and they are checked on every batch.
Specification Summary
- 12V electrical system
- 6PK pulley
- Complete compressor with electromagnetic clutch and pulley
- Refrigerant circuit connections as original
- Pre-charged with the specified PAG oil
- Direct replacement for the original mounting
Reference Numbers and Cross References
Catalogue references:
- 1K0820859NV
- 1K0820859NX
- 1K0820808AV
- 1K0820808AX
- 5N0820803HV
- 5K0820803EV
- 5K0820803EX
- 5Q0820803RV
- 5Q0820803RX
- 8J0260805
- 8J0260805A
Application Notes
Confirm the number against the vehicle before ordering. Where a model was built with more than one variant, the part number is the only reliable guide.
Failure Modes
Refrigerant loss is the usual start. A shaft seal or O-ring leak drops the charge, the compressor runs with less oil and the internal surfaces wear.
Internal wear ends in noise and no cooling. Once debris is in the circuit, a new compressor will fail unless the system is flushed and the drier replaced.
Fault Symptoms
- Weak or no cooling at the vents
- Compressor clutch not engaging
- Rattle or knock from the compressor
- Oily residue around hose joints
- Frequent cycling or fuse failure
Checking Before Replacement
Check static and running pressures, clutch engagement and the belt. Confirm the charge before condemning the compressor.
Confirm the fault is inside the unit and not in the circuit around it.
Installation Notes
Recover the refrigerant, flush the circuit, fit a new receiver drier and expansion valve, add the specified oil quantity to the new compressor and evacuate before charging. Check clutch air gap and belt alignment, then verify vent temperature.
Related Parts to Check at the Same Time
- Receiver drier
- Expansion valve
- Condenser
- Drive belt and tensioner
Quality Control and Supply
Every batch is function-tested before packing. Hejian Nuojin Auto Parts Co., Ltd. supplies in neutral packaging with a one-year warranty.
Frequently Asked Questions
How do I confirm this is the right unit?
Read the number from the old part and compare the key interfaces: connectors, brackets, pulley or pipework.
Can it be fitted without special tools?
Standard hand tools cover most of the job. Refrigerant work needs recovery and charging equipment, and urea systems need a diagnostic routine to prime.
What else should be replaced at the same time?
Everything that touches the new unit: filter and lines for a urea pump, clutch and seals for a gearbox, drier and expansion valve for a compressor.
Why did the original fail?
Contamination, heat and wear account for most failures. Clean installation and correct consumables prevent a repeat.
