SAE 20R3 and R4 Class D1 & D2


Premium construction Continental SAE 20R3 and R4 class D1 and D2 is a high-quality coolant hose designed to offer extra-long service life on automotive and truck cooling system applications.

Construction: Tube: EPDM | Reinforcement: Two spiral layers
  • SAE 20R3 D1 & D2 is a heater hose.
  • SAE 20R4 D1 is a radiator hose.
  • Temperature Range: -40 °F to 257 °F (-40 °C to 125 °C)
  • This hose can be made electrochemical resistant or striation resistant.
  • Supplied in both straight and custom-formed shapes.
  • Compatible with most available coolants including the new 150,000 mile coolants or LLC (Long Life Coolants or OAC (Organic Acid Coolants) and the Sierra or Environmentally Friendly (Propylene Glycol Coolant).