Four Seasons A/C Refrigerant Discharge / Suction Hose Assembly 66757
Four Seasons A/C Refrigerant Discharge / Suction Hose Assembly 66757

Four Seasons A/C Refrigerant Discharge / Suction Hose Assembly P/N:66757

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$67.99
MPN: 66757
Item Package Quantity: 1
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Four Seasons A/C Refrigerant Discharge / Suction Hose Assembly P/N:66757
Four Seasons A/C Refrigerant Discharge / Suction Hose Assembly P/N:66757
$67.99

Move refrigerant reliably between the compressor and the rest of the A/C system with the Four Seasons A/C Refrigerant Discharge / Suction Hose Assembly 66757, an application-specific, direct-fit replacement for the 1997-1999 Buick Century and 1997-2003 Pontiac Grand Prix. This combined line handles both sides of the loop — the discharge side carries high-pressure refrigerant away from the compressor, while the suction side returns low-pressure refrigerant back to it — so a cracked, leaking, or crimped-fitting hose can be swapped out in one assembly.

  • Double-wall barrier hose: the hoses are constructed with double wall barrier hose compatible with R1234YF, R134A or R12.
  • Seals included: contains gaskets, o-rings, or seals to properly replace the product.
  • Crimp fitting connection for the factory-style hose-to-fitting joints.
  • Application-specific design shaped for the listed vehicles.

Backed by Four Seasons' 50-plus years of mobile A/C experience, this assembly is engineered and tested for years of trouble-free operation. If a leaking or damaged discharge/suction line is behind your A/C performance loss, this replaces it.

Interchange: 1531021 · 781579 · 10278598 · 10291583 · 10403405 · 10443399 · 704581 · 4811967 · 211668 · A83371 · 3464447 · 5731021 · 1956180 · HA11177C

This part cross-references / interchanges with the following part numbers:

1531021, 781579, 66757, 10278598, 10291583, 10403405, 10443399, 704581, 4811967, 211668, A83371, 3464447, 5731021, 1956180, HA11177C

Frequently Asked Questions

What does this hose assembly do?

It carries refrigerant through the A/C system — the discharge side moves high-pressure refrigerant away from the compressor, while the suction side returns low-pressure refrigerant back to it.

Which vehicles does 66757 fit?

It's a direct-fit replacement for the 1997-1999 Buick Century and the 1997-2003 Pontiac Grand Prix. Check the Buyer's Guide tab to confirm your exact vehicle.

Are seals included with this assembly?

Yes — it contains gaskets, o-rings, or seals to properly replace the product.

What refrigerants is the hose compatible with?

The hoses are constructed with double wall barrier hose compatible with R1234YF, R134A or R12.

What are signs this hose may need replacing?

Refrigerant leaks, oily residue at the fittings, weak A/C cooling, or a system that won't hold a charge can point to a failed hose. Diagnose the cause before replacing.

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