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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

See if this part fits a specific vehicle.

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)


Please note: Advance Auto Parts is proud to carry comparable exact-fit parts from multiple vendors, as such, the item you receive may be one of two quality brands. Both brands meet the same fitment requirements and are equal in their performance and specifications.

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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