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Home›Engines›Briggs & Stratton Vanguard M61

Briggs & Stratton Vanguard M61 Engine

The Briggs & Stratton Vanguard M61 is an engine. It powers generator sets from Cummins/Onan, including the A030.

Also known as: Briggs & Stratton Vanguard M61

Part of the Briggs & Stratton Vanguard engine family — 3 variants share parts & fitment.

On this pageService partsSpecsGenerator setsMaintenanceFilter cross-referenceFAQ

Service parts for the Vanguard M61

The cheapest captured merchant offer per filter — see the full cross-reference below for every OEM/aftermarket option.

Oil system

1 required
P550020Oil filterfind

Prices captured from merchant listings; some links are affiliate links. Verify against your serial number before ordering.

Engine specifications

Generator sets powered by this engine

1
Cummins/Onan A030

How to read your Briggs & Stratton engine serial & model number →

Common problems

15
  • Voltage Sense Lost 27
  • Undervoltage 13
  • Underfrequency 15
  • Speed Sense Fault 45
  • Service Check Fault 3
  • Processor Fault 43
  • Overvoltage 12
  • Overfrequency 14
  • Overcrank 4
  • Low Oil Pressure Fault 2
  • Low Fuel Pressure 78
  • Low Cranking Speed Sense 32
  • Invalid Set Configuration 37
  • High Battery Voltage 29
  • Governor Actuator Shutdown 19

Compiled from service & troubleshooting documentation across every generator set that uses the Briggs & Stratton Vanguard M61.

Maintenance schedule

ItemSpecCapacityPart #Interval
Air filterReplace Engine Air Filter X1—2500 hr
Fuel filter—
Oil filter512431000 hr Amazon eBay $10.00
Battery—1000 hr
Belt—
Coolant—
OilCheck the oil level prior to starting the generator set to verify that the oil level is between the FULL and ADD marks.—8 hr
Spark plugReplace Spark Plugs and Wires X3—16800 hr

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

Parts cataloged across the Briggs & Stratton Vanguard family

67
Part #DescriptionCategory
511810ADAPTER, ELBOWadapter
512189ADAPTER, T - CONNECTORadapter
512202ADAPTOR, STRAIGHT ASSY.adapter
513547ADAPTOR, ELBOWadapter
04-0001Air Filterair_filter
N/A-001Air Filter Componentsair_filter
04-0005Beltbelt
18237LUG BOLT/HUB FLANGEbolt
18016CABLE, PARKING BRAKEcable
18133CABLE, THROTTLEcable
04-0004Coolant Filtercoolant_filter
18195DECAL, WHITEMAN SAFETY INSTRUCTIONSdecals
18213DECAL, BUCKET DUMP LEVERdecals
18214DECAL, TRAVEL LEVER DIRECTIONdecals
18225DECAL, GASOLINE ONLYdecals
18245DECAL, FORKLIFT LIFTINGdecals
18247DECAL, CRUSH WARNINGdecals
18248DECAL, HOT SURFACE WARNINGdecals
18252DECAL, MQ WHITEMANdecals
512446DECAL, WPB-16EAWDdecals
513608DECAL, LIFTING HOOKdecals
EM985DECAL, HYDRAULIC OILdecals
18166CAP, FUELfilter
20763FILTER, IN-LINE FUELfilter
508667FILTER, HYDRAULIC OILfilter
511692FLANGE, HUBflange
516528FLANGE HUB, ASSYflange
04-0003Fuel Filterfuel_filter
N/A-003In-Line Fuel Filterfuel_filter
A030B021Harness, Heater (Alternator Heater) (Spec A and Canadian GSBB Spec B)harness
A041U952Harness, Interface (US GSBB Spec B and Canadian GSBC Spec B)harness
20GSBB-6714AHeater Assembly (Spec A and Canadian GSBB Spec B)heater
20GSBB-6714BHeater Assembly (US GSBB Spec B and Canadian GSBC Spec B)heater
20GSBC-6727BHeater Assembly (US GSBB Spec B and Canadian GSBC Spec B)heater
18027HOSE, DRIVER MOTOR CROSSOVERhose
513601HOSE, MANIFOLDhose
513602HOSE, MANIFOLDhose
513603HOSE, MANIFOLDhose
513605HOSE, LH HYDRAULIC MOTORhose
513606HOSE, RH HYDRAULIC MOTORhose
513607HOSE, HYDRAULIChose
18040HUB, DRIVEhub
491689KEY, COTTER 1/8 X 2key
PE449105KEY, WOODRUFF 1-1/4 32 MMkey
18132LEVER ,THROTTLElever
18011MOTOR, HYDRAULIC DRIVEmotor
492527NUT, HEX 1/2-20nut
492584NUT, HEX 1/2-13 NYLON...................................8................REPLACES 6109160nut
PT018038NUT, CASTLE 1-1/8-18nut
04-0002Oil Filteroil_filter
N/A-002Oil Filteroil_filter
18145ROD, BRAKE CONTROLother_service
18316LINING, BRAKEother_service
511719COUPLING, ENGINE SHAFTother_service
em16754switch, 2WD/AWD toggleother_service
513609PLATE, AWD/2WD DRIVE MODEplate
18035PUMP, HYDROSTATICpump
18190SCREW, HUB STUD 1/2-13X 3 IN.screw
505718SCREW, HHC 1/2-13 X 2-3/4screw
18011SKSEAL KIT, DRIVE MOTORseal
04-0006Spark Plugspark_plug
N/A-004Spark Plugspark_plug
18043SWITCH, KILLswitch
18044SWITCH, TRACTION ASSISTswitch
492600WASHER, FLAT 1/2washer
18029WHEEL, DRIVEwheel
18049WHEEL, STEERINGwheel

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Filters for this engine

  • Oil filter: Donaldson P550020 Wix 51243 Ac Delco PF17

Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.

Also used in

1
  • John Deere 155 — Lawn Equipment

Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.

Common questions

Which generators use the Briggs & Stratton Vanguard M61 engine?

The Briggs & Stratton Vanguard M61 powers 1 generator set(s), including Cummins/Onan A030.

What oil filter does the Briggs & Stratton Vanguard M61 use?

The Briggs & Stratton Vanguard M61 uses oil filter part numbers Donaldson P550020, Wix 51243, Ac Delco PF17.

How often should you change the oil in the Briggs & Stratton Vanguard M61?

The Briggs & Stratton Vanguard M61 oil change interval is every 8 hours.

What is a common problem with the Briggs & Stratton Vanguard M61 engine?

A commonly reported issue on generators using the Briggs & Stratton Vanguard M61 is: Voltage Sense Lost.