This Super Flexible hose is a coolant / heater hose that is mandrel made in continuous lengths up to 130 feet, the longest length and most flexible silicone hose available in the industry. This hose is resistant to coolant solutions, cracking, ozone, cold leaks, peeling and aging. This product is made for extreme applications that require tight bends for connections between the radiator and the engine on heavy-duty equipment, buses, trucks, etc. The X-treme Plus SF has a Greek corrugated construction that allows this hose to be flexible enough to replace pre-formed elbows. 3:1 Design Factor
  • Tube Color: Black
  • Reinforcement: High-temperature-resistant plies with helical wire
  • Cover Color: Red Greek Corrugated
  • Temperature Range: -76° to +392°F
  • Branding: PARKER SILICONE SERIES 6621 -76° to +392°F (DATE CODE) MADE IN ITALY
  • Specifications: Meets or exceeds performance criteria of SAE J20R2, ISO 1307-1997
    Lengths: 25' and 130' continuous lengths
    Available in the following inside diameters; 1/2", 19/32"**, 5/8", 11/16"**, 3/4", 13/16"**, 1", 1-1/8"**, 1-3/16"**, 1-1/4"*, 1-3/8"*, 1-1/2"*, 1-5/8"**, 1-3/4"*, 2"*, 2-13/16"**, 2-1/4"**, 2-3/8"**, 2-1/2"**, 2-9/16"**, 2-3/4"**, 3"**, 3-1/8"**, 3-9/16"** and 4"**.
    * items only available in 25' lengths; ** items only available in 130' lengths.
    Max working pressure 75 psi.
Unit of Measure