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Four Seasons 178308 A/C Compressor
| Brand | Four Seasons 178308 |
|---|---|
| Refrigerant Type | R134a r1234yf |
| Oil Filled | Included |
| Pulley Groove Quantity | 6 |
| Outside Pulley Diameter | 4.500 |
| Clutch Included | Yes |
| Compressor Type | Denso |
| Coil Voltage | 12 |
| Switch Included | No |
| Pulley Belt Type | Serpentine |
| Mounting Type | Ear mount |
| Connector Type | Harness lead |
| Electronic Control Valve | Yes |
| Model | 7ses17c |
| Mounting Hardware Included | No |
| New or Reman | New |
| O-Ring A Number/Desc | 24402 / slim line sealing washer |
| O-Ring A Quantity | 1 |
| O-Ring B Number/Desc | 24404 / slim line sealing washer |
| O-Ring B Quantity | 1 |
| Product line | New Compressor |
| Fits | BMW · 9 vehicles |
New compressor. Fresh replacement unit for dependable A/C performance.
Oil filled. Ready for installation with lubricant already included.
Denso type. Built with a proven compressor design and 12-volt coil.
Cross-references Four Seasons 178308, Nissens 891746 and 276645 for the same application. See all 8.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
BMW A/C Compressor for 2020-2019 Applications
Restore cabin cooling with this Four Seasons New Compressor, part number 178308. It is a new Denso-style A/C compressor with clutch, electronic control valve, and oil filled, built for R134A and R1234YF refrigerant systems.
Compatible with select BMW 840i, X5, X6, and X7 applications, this compressor is listed for 2020 BMW 840i, 2020 BMW 840i Gran Coupe, 2020 BMW 840i xDrive, 2020 BMW 840i xDrive Gran Coupe, 2019-2020 BMW X5, 2020 BMW X6, and 2019-2020 BMW X7. Part number 178308 is also referenced in OE-style interchange listings for the same application.
Key Features
- Four Seasons New Compressor, brand line: New Compressor
- Part number 178308
- Denso compressor type with 7SES17C model designation
- Clutch included
- Electronic control valve included
- 12-volt coil voltage
- Serpentine belt pulley with 6 grooves
- 4.500-inch outside pulley diameter
- Ear mount design with harness lead connector
- Oil filled from the factory
- For R134A and R1234YF refrigerant systems
Product Details
Four Seasons builds this compressor for direct replacement service in late-model BMW HVAC systems that use a clutch-equipped, electronically controlled compressor. The unit is new, not remanufactured, and includes the electronic control valve needed for proper system operation. Its ear mount design, harness lead connector, and serpentine pulley layout support OE-style service on the listed BMW 840i, X5, X6, and X7 applications.
This part cross-references Nissens 891746 for the same application.
What This Compressor Helps Address
- Weak or no cabin cooling
- Compressor noise or internal wear
- Loss of refrigerant system pressure
- Clutch-related compressor engagement problems
- Electronic control valve performance issues
Installation Notes
Verify refrigerant type, connector style, pulley configuration, and mounting style before installation. Replace the specified slim line sealing washers during service and confirm the system is clean, evacuated, and charged to the vehicle specification. Check for contamination in the A/C system and inspect related components before putting the vehicle back into service.
Quality Assurance
Four Seasons states that its mobile A/C products are engineered and tested for long service life and backed by more than 50 years of mobile air conditioning experience. This compressor is built to support reliable operation in the listed BMW applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2020 | BMW | 840i | — | — | N/A | Compressor w/o Magnetic Coupling; New Compressor |
| 2020 | BMW | 840i Gran Coupe | — | — | N/A | Compressor w/o Magnetic Coupling; New Compressor |
| 2020 | BMW | 840i xDrive | — | — | N/A | Compressor w/o Magnetic Coupling; New Compressor |
| 2020 | BMW | 840i xDrive Gran Coupe | — | — | N/A | Compressor w/o Magnetic Coupling; New Compressor |
| 2020 | BMW | X5 | 3.0L | L6 | N/A | w/o Magnetic Coupling; New Compressor |
| 2020 | BMW | X6 | 3.0L | L6 | N/A | New w/ Clutch; New Compressor |
| 2020 | BMW | X7 | 3.0L | L6 | N/A | New w/ Clutch; New Compressor |
| 2019 | BMW | X5 | 3.0L | L6 | N/A | w/o Magnetic Coupling; New Compressor |
| 2019 | BMW | X7 | 3.0L | L6 | N/A | New w/ Clutch; New Compressor |
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