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Vanguard M61 Engine

The Vanguard M61 is a 0.99 L 2-cylinder naturally aspirated engine rated at 3600 rpm. It powers generator sets from Briggs & Stratton, including the PP17, PP18, PP20 and PP22. It holds 2.31 L (0.6 gal) of oil.

Also known as: Vanguard M61

0.993 L
Displacement
2
Cylinders
3600 rpm
Rated speed
2.31 L
Oil capacity

Engine specifications

Oil capacity2.31 L
Displacement0.993 L
Cylinders2
AspirationNaturally Aspirated
Rated speed3600 rpm

Maintenance schedule

ItemSpecCapacityPart #Interval
Oil filterCartridge
Oil5W30 Full Synthetic78.0 oz

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Recommended fluids

FluidGradeStandardAmbientCapacityNotes
Engine oil5W30Full Synthetic2.31 LRecommended oil type
Engine oil5W30 Full Synthetic-28°C to 40°C2.31 LSchaeffer brand recommended

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

What is the oil capacity of the Vanguard M61?

The Vanguard M61 engine has an oil capacity of 2.31 liters.

What is the displacement of the Vanguard M61?

The Vanguard M61 has a displacement of 0.993 liters with 2 cylinders.

Which generators use the Vanguard M61 engine?

The Vanguard M61 powers 5 generator set(s), including Briggs & Stratton PP17, Briggs & Stratton PP18, Briggs & Stratton PP20, Briggs & Stratton PP22, Briggs & Stratton PP26.