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2012 Standard Wall 3/16” Coolant SAE 20R1 – Automotive / Coolant Hose

The Type 2012 hose is used where heavy-duty service is required for engine cooling systems such as Class 7 and 8 trucks and off-road equipment and can also be used as a general purpose discharge hose and for other applications. The Class B tube, Class C cover and tire cord reinforcement withstand the most corrosive elements in diesel engines, including oil, coolants, coolant additives and heat. Note: This hose is not suitable for oil or fuel transfer.

Technical Overview

Cover Color ■ Black
Oil Resistance ■ Medium to Medium-High
Construction ■ Tube: EPDM
■ Cover: EPDM
■ Reinforcement: 2 Plies of Polyester Cord
Temperature Range ■ -65°F to +212°F, -54°C to +100°C
Couplings ■ Consult coupling manufacturers for
   specifics on recommended couplings
Packaging ■ Make to Order (MTO)
■ 1/2″ and 5/8″ I.D Sizes are
   available in lengths up to 25 ft.
■ All other hose sizes are available
   in lengths of 12 ft. and 60 ft.
■ 12 foot lengths are boxed. 25 ft. and 60 ft. lengths
    are coiled and wrapped in plastic.


Thermoid Catalog – 2012 Standard Wall 316 Coolant SAE 20R1

Features & Benefits

Class B Tube
  • Medium-High Oil Resistance
  • Can be Used as General Purpose Discharge Hose
  • Heat Resistant
  • Coolant Resistant
Class C Cover
  • Medium Oil Resistant
  • Heat Resistant
2-Ply Tire Cord Reinforcement
  • Provides Working Pressures for Class 7 & 8 Truck Coolant Systems
-65°F to +212°F Temperature Range
-54°C to +100°C
  • Hose Performs Even in Extreme Temperatures
SAE 20R1 Specs
  • Meets Industry Standards for Heavy-Duty Coolant Systems