DENSO Air Con Compressor - DCP45004
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Product Information
Full details
The DENSO Air Con Compressor (DCP45004) is designed for automotive technicians and vehicle owners looking for a direct OE-equivalent replacement to restore efficient cabin cooling. This high-performance compressor features an integrated magnetic clutch and is engineered for precise 12V system compatibility; however, it requires professional installation and proper system evacuation to ensure long-term reliability and compliance with environmental regulations.
All features
| Model Part Number | DCP45004 |
|---|---|
| Brand | DENSO |
Extended Product Information
FAQs
Is the compressor pre-filled with oil?
Yes, it arrives pre-filled with 120 ml of oil, though you should verify this matches your vehicle's service manual requirements.
Can I use R12 refrigerant with this unit?
No, this compressor is specifically designed and certified for use with R134a refrigerant only.
What is the pulley diameter?
The pulley diameter is 130 mm.
Does this unit come with a warranty?
Warranty terms vary by retailer; please check the specific documentation provided at the point of purchase.
Do I need to replace other parts when installing this?
It is highly recommended to replace the receiver drier and expansion valve to prevent premature failure of the new unit.
Is professional installation required?
Yes, as the process involves handling pressurized refrigerant, which requires specialized recovery and charging equipment.
Troubleshooting
Compressor clutch fails to engage
Check the 12V electrical connection and the AC relay/fuse; verify the system has sufficient refrigerant pressure to trigger the low-pressure switch.
Excessive noise during operation
Inspect for improper belt alignment or loose mounting bolts; ensure the compressor is not suffering from internal damage due to poor system flushing.
Poor cooling performance
Check refrigerant levels with a manifold gauge set and ensure there are no blockages in the condenser or expansion valve.
Pros and Cons
Pros
- Meets or exceeds original equipment quality standards
- Pre-filled with correct oil volume for immediate installation readiness
- High-durability magnetic clutch included
- Precise 130 mm pulley diameter for accurate belt tracking
Cons
- Requires professional HVAC equipment for system evacuation and recharging
- Installation requires technical knowledge of automotive cooling circuits
- Strict requirement for R134a refrigerant limits flexibility for other gas types
Setup, Compatibility & Care
- Preparation: Ensure the engine is cool and the battery is disconnected before accessing the AC assembly.
- Installation: Secure the compressor using the factory-specified torque settings for the bolted mounting points.
- System Integrity: Always replace the receiver drier and expansion valve when installing a new compressor to maintain system purity.
- Oil Check: While pre-filled with 120 ml of oil, verify the specific requirement for your vehicle make and model, as some applications may necessitate adjusting the oil level.
- Maintenance: Periodically inspect the serpentine belt for signs of wear or cracking, as belt tension directly affects the longevity of the compressor pulley bearing.