Description
OE 6SAS14C A/C compressor — BMW X3 (2018–2023)
A genuine OE 6SAS14C variable-displacement compressor assembly with clutch for the 2018–2023 BMW X3. Ships ready to bolt on — 6-groove clutch, 115 mm pulley, 12 volt, with control valve, and compatible with both R-134a and R-1234yf. A direct replacement for UAC CO 11637C and BMW 64529299328.
Confirm these before you order
Compressors that look alike can differ at the clutch and ports. Check your original against this configuration:
Confirm before ordering. Match the clutch groove count, pulley diameter, and port layout to your original — or call us with your VIN and we’ll confirm the right compressor.
A genuine OE replacement
OE unit
A genuine OE 6SAS14C compressor built for the 2018–2023 BMW X3 — replaces UAC CO 11637C and BMW 64529299328.
Variable displacement
Includes the control valve, so the compressor modulates output for steady cooling and smoother operation.
Clutch included
Comes as a complete assembly with the 6-groove, 12 V clutch fitted — no separate clutch to source.
R-134a & R-1234yf
Compatible with both refrigerants — charge to your vehicle’s specification.
Wide interchange
Cross-references UAC, BMW, Four Seasons, MAHLE, and more — see the table below.
Restores cooling
Brings the A/C back to full output when a worn or seized compressor has quit.
Vehicle compatibility
Built for the following. Confirm your year, engine, and compressor configuration against your original before ordering.
| Make | Model | Years |
|---|---|---|
| BMW | X3 | 2018–2023 |
Confirm before ordering. The X3 was offered with more than one engine — match your BMW number and the clutch/port layout to your original, or call us with your VIN and we’ll confirm.
OE & interchange numbers
Match your old compressor against the numbers below.
| Brand | Part number(s) |
|---|---|
| UAC | CO 11637C |
| BMW (OE) | 64529299328 · 64526994082 |
| MAHLE | ACP1579000S |
| Four Seasons | 168365 · 167365 |
Additional Denso and interchange numbers apply — call with your old part number if you don’t see it here.
Technical details
Renew these while the system’s open
Any time you replace a compressor, renew the wear parts and set the oil — it protects your new compressor and your warranty:
Accumulator / drier
Always replace the drier with the compressor so moisture and debris don’t reach the new unit.
Shop driers →Expansion valve / orifice
Replace the metering device so refrigerant flows correctly and debris is caught.
Shop metering devices →PAG oil & UV dye
Set the correct PAG charge for your system and add UV dye to catch future leaks fast.
Shop oil →Fit it right
A new compressor fails fast if the system isn’t flushed and the oil isn’t set. Do it in order:
Recover & flush
Recover the charge, then flush the system to clear debris from any prior compressor failure.
Replace wear parts
Fit a new drier and metering device, and new O-rings at every connection you open.
Set the oil
Measure and set the correct PAG oil charge for the system before install.
Evacuate & recharge
Pull a deep vacuum, then charge to the vehicle’s specified refrigerant and quantity.
Add to your order
| Image | Product Name | SKU | Price | In Stock | Quantity | Add To Cart |
|---|---|---|---|---|---|---|
|
Condenser Manifold Fitting · #6 Hose @ 3 O'clock · Custom / LS Swap | 234-544 | $47.25 | 47 in stock | ||
|
Condenser Manifold Fitting · #6 Hose @ 6 O'clock · Custom / LS Swap | 234-545 | $47.25 | 45 in stock | ||
|
Condenser Manifold Fitting · #6 Hose @ 9 O'clock · Custom / LS Swap | 234-546 | $47.25 | 48 in stock | ||
|
A/C Compressor Manifold · High Side · #8 Hose @ 3 O'clock · 10S20F/10S17F | 234-547 | $47.25 | 32 in stock | ||
|
A/C Compressor Manifold · High Side · #8 Hose @ 6 O'clock · 10S20F/10S17F | 234-548 | $47.25 | 15 in stock | ||
|
A/C Compressor Manifold · High Side · #8 Hose @ 9 O'clock · 10S20F/10S17F | 234-549 | $47.25 | 42 in stock | ||
|
A/C Compressor Manifold · Low Side · #10 Hose @ 3 O'clock · 10S20F/10S17F | 234-550 | $47.25 | 15 in stock | ||
|
A/C Compressor Manifold · Low Side · #10 Hose @ 6 O'clock · 10S20F/10S17F | 234-551 | $47.25 | 45 in stock |
Compressor FAQ
Is this a genuine OE compressor?
Does it come with the clutch?
What refrigerant does it use?
Will it fit my X3?
What does it replace?
Match your compressor before you buy
Send us your year and VIN and we’ll confirm the right OE 6SAS14C compressor and the parts to complete the repair.
Add to cart ↑ Confirm my fitmentBMW®, MAHLE®, and all manufacturer names and part numbers are trademarks of their respective owners and are listed for identification and cross-reference purposes only; their use does not imply affiliation or endorsement. This is a replacement compressor assembly. Confirm year, engine, clutch configuration, and port layout against your vehicle before ordering.
