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Heater Core
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Heater Core by ToughOne or Ready-Aire (part#399092) / Heater Cores & Seals

Part No. 399092 Warranty  
$28.99
Quantity  Add Heater Core To Cart

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Check Vehicle Fit

Brand: ToughOne or Ready-Aire
Advance Auto Parts Part#: 5890551
Suitable vehicles: Click to find if this product can be used with your vehicle:
  • Buick
    • Regal Grand National
      • 1987
        • 1987 Buick Regal Grand National (3.8L 231CI V6 FI Turbo VIN: 7)
      • 1986
        • 1986 Buick Regal Grand National (3.8L 231CI V6 FI Turbo VIN: 7)
  • Chevrolet
    • El Camino
      • 1986
        • 1986 Chevrolet El Camino (5.0L 305CI V8 Carb VIN: H)
      • 1984
        • 1984 Chevrolet El Camino (5.0L 305CI V8 Carb VIN: H)
      • 1983
        • 1983 Chevrolet El Camino (5.0L 305CI V8 Carb VIN: H)
    • Monte Carlo
      • 1986
        • 1986 Chevrolet Monte Carlo (5.0L 305CI V8 Carb VIN: H)
    • Monte Carlo SS
      • 1988
        • 1988 Chevrolet Monte Carlo SS (5.0L 305CI V8 Carb VIN: G)
      • 1987
        • 1987 Chevrolet Monte Carlo SS (5.0L 305CI V8 Carb VIN: G)
      • 1986
        • 1986 Chevrolet Monte Carlo SS (5.0L 305CI V8 Carb VIN: G)
      • 1985
        • 1985 Chevrolet Monte Carlo SS (5.0L 305CI V8 Carb VIN: G)
      • 1984
        • 1984 Chevrolet Monte Carlo SS (5.0L 305CI V8 Carb VIN: G)
  • Oldsmobile
    • Cutlass Supreme
      • 1987
        • 1987 Oldsmobile Cutlass Supreme (5.0L 307CI V8 Carb VIN: Y)


Our heaters are designed and tested to meet or exceed OE specifications for form, fit, and function. Using premium quality materials and a clear focus on the highest heat transfer performance possible, our engineers have designed this heater to perform at the highest standards to ensure a warm cab environment during those cold winter months.
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Core Height:7 in
Core Thickness:2 in
Core Width:8 1/4 in
Inlet Size(s):5/8 in
Outlet Size(s):3/4 in

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