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Home >> Subaru >> 2013 >> Outback Base, Standard Trans >> Repair and Diagnosis >> Engine Mechanical >> Cooling Fan >> Engine Cooling System (H4DO) >> General Description >> Specification
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Engine Cooling System (H4DO): General Description: Specification

Cooling system Electric fan + Forced engine coolant circulation system
Total engine coolant capacity L (US qt, Imp qt) CVT model Approx. 7.5 (7.9, 6.6)
MT model Approx. 7.6 (8.0, 6.7)
Water pump Type Centrifugal impeller type
Discharge performance Discharge rate L (US gal, Imp gal)/min. 230 (60.8, 50.6)
Pump speed - Discharge pressure 6, 600 rpm - 211.0 kPa (22 mAq)
Engine coolant temperature 80°C (176°F)
Impeller diameter mm (in) 60 (2.36)
Number of impeller vanes 7
Pump pulley diameter mm (in) 130 (5.12)
Thermostat Type Wax pellet type
Starting temperature to open 87 - 91°C (189 - 196°F)
Fully opens 98°C (208°F)
Valve lift mm (in) 8.0 (0.315) or more
Valve bore mm (in) 32 (1.26)
Radiator fan Motor input Main fan W 90
Sub fan W 90
Fan diameter/Blade Main fan 300 mm (11.81 in)/4
Sub fan 300 mm (11.81 in)/5
Radiator Type Down flow, pressure type
Core dimensions Width x Height x Thickness mm (in) 687.4 x 340 x 16 (27.06 x 13.39 x 0.63)
Pressure range in which cap valve is open kPa (kg/cm2 , psi) Positive pressure side Standard 93 - 123 (0.95 - 1.25, 14 - 18)
Limit 83 (0.85, 12)
Negative pressure side Standard -1.0 to -4.9 or less (-0.01 - -0.05, -0.1 - -0.7)
Fins Corrugated fin type
Reservoir tank Capacity L (US qt, Imp qt) 0.45 (0.48, 0.40)
  Recommended materials Item number Alternative
Coolant SUBARU SUPER COOLANT (Concentrated type) - -
SUBARU SUPER COOLANT (Diluted type) K0670Y0001
Water for dilution Distilled water - Soft water or tap water
Cooling system protective agent Cooling system conditioner SOA345001 -