Factory GM Harrison air conditioning compressor used on 1986–1987 Buick Grand National, Turbo T, and GNX models. This is an original R4-style compressor featuring the factory clutch assembly and ID tag intact.
The unit spins freely but has not been pressure tested or verified for functionality. Cosmetic wear and oil residue are present from prior use. Excellent candidate for core rebuild or restoration.
🔹 Condition: Red Dot – Used, untested, condition uncertain; ideal for core or display 🔹 Model: Harrison GM 1131621 🔹 Fitment: 1986–1987 Buick Grand National / Turbo T / GNX / Regal Turbo 3.8L 🔹 Compressor Type: R4 🔹 Refrigerant: R-12 🔹 Includes: Complete clutch and pulley assembly
⚠️ Notes: Sold as a core; not guaranteed operational. Surface rust and paint wear as shown.
