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Home >> Subaru >> 2023 >> WRX Base, Automatic CVT Trans >> Repair and Diagnosis >> Engine Mechanical >> Engine Lubrication System >> General Description >> Specification >> Oil Pump
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Oil Pump

Pump type Trochoid type
Number of teeth pcs. Inner rotor 8
Outer rotor 9
Outer rotor diameter x Thickness mm (in) 77 x 14.8 (3.03 x 0.58)
Performance (Oil temperature 120°C (248°F)) 600 r/min (Engine speed) Discharge pressure kPa (kg/cm2 , psi) 39 (0.4, 5.7)
Discharge rate L (US qt, Imp qt)/min 7.7 (8.1, 6.8) or more
6, 000 r/min (Engine speed) Discharge pressure kPa (kg/cm2 , psi) 337 (3.4, 48.9)
Discharge rate L (US qt, Imp qt)/min 63.8 (67.4, 56.2) or more
Relief valve working pressure (2-step relief) Valve opening pressure kPa (kg/cm2 , psi) 560 (5.7, 81.2)