A/C Compressor for Case 580M / 580N Backhoe - Replaces 84159489 - OEM Quality Direct Fit

84159489 Case A/C Compressor — Direct OEM Replacement

Need a replacement A/C compressor for your Case backhoe? Part number 84159489 is in stock and ready to ship. This is a brand-new, genuine OEM-spec compressor — the exact same unit the factory installs — at a fraction of the dealer price. Stop sweating in the cab and get your crew comfortable again.

Why A/C Compressors Fail on Case Backhoes

The Case 580 series is the hardest-working backhoe in North America, and that vibration takes a toll on the A/C system. Compressor clutch failures, internal bearing wear, and refrigerant leaks are extremely common on high-hour machines. When the compressor goes, your operator is miserable — and miserable operators cost you productivity. The 84159489 compressor is a direct bolt-on replacement that gets cold air blowing again in under two hours.

Specifications

• OEM Part Number: Case / New Holland 84159489
• Replaces: 87430122, 87440388
• Compressor Type: 7-Cylinder Swash Plate
• Voltage: 12V
• Mount Type: Ear Mount
• Clutch: 1-Groove, 135mm
• Head Type: MD
• Condition: Brand New
• Refrigerant: R-134a

Compatible Case & New Holland Equipment

The 84159489 A/C compressor is a direct fit for the following machines:

• Case 580M Backhoe Loader
• Case 580M Series II Backhoe Loader
• Case 580M Series III Backhoe Loader
• Case 580N Backhoe Loader
• Case 580 Super M Backhoe Loader
• Case 580 Super N Backhoe Loader
• Case 590 Super N Backhoe Loader
• New Holland B95 Backhoe Loader
• New Holland B110 Backhoe Loader

Also replaces superseded part numbers 87430122 and 87440388. If your current compressor shows any of these part numbers, this is the correct replacement.

Why Buy the 84159489 From Trenchwell?

• Save Nearly 50%: CNH dealers quote $750–$920+ for this exact compressor. Our price saves you hundreds — same part, same spec, less money.
• Genuine OEM Quality: This is the real deal — a genuine factory-spec compressor, the same type that supplies the OEM assembly line. Not a cheap offshore knockoff.
• Fast Shipping: In stock and ships fast. Your operator shouldn't have to sweat for a week waiting on a dealer backorder.
• Drop-In Replacement: Same ear mount, same clutch, same electrical connector. Unbolt the old one, bolt this one on, charge the system, done.
• Expert Support: Not sure if this fits your specific machine? Contact us with your serial number and we'll verify compatibility before you order.

Installation Tips

When replacing the 84159489 compressor, always:

• Replace the receiver/drier (accumulator) — contamination from the old compressor will kill the new one
• Flush the system with approved A/C flush solvent
• Replace the expansion valve or orifice tube
• Add the correct amount of PAG oil (check your service manual)
• Pull a deep vacuum (minimum 30 minutes) before charging with R-134a

Frequently Asked Questions

Is this the correct replacement for Case part 84159489?
Yes. This is a genuine OEM-spec compressor — 12V, ear mount, 1-groove 135mm clutch, MD head type. It is the exact same compressor that Case uses, matching part number 84159489 (and superseded numbers 87430122, 87440388).

Will this fit my Case 580M?
Yes. The 84159489 compressor is used across the entire Case 580M and 580N series backhoe loaders. Verify by checking your current compressor or your Case parts catalog for part number 84159489.

Is this an aftermarket compressor?
No. This is a genuine OEM-spec compressor — the same manufacturer that produces the compressor for the Case factory. It is OEM-quality because it IS the OEM part, just purchased through a different supply chain.

How much can I save vs. the CNH dealer?
CNH dealers typically quote $750–$920+ for this compressor. At $489, you're saving $260–$430+ per unit — and getting the exact same genuine OEM part.

Do I need to add oil to the new compressor?
The compressor ships with a small amount of oil. You may need to add additional PAG oil per your service manual specifications. Always measure what drains from the old compressor and adjust accordingly.