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Home›Generac›Generac GP6500

Generac GP6500 Generator Set

The Generac GP6500 is a 6.5 kW (8.12 kVA) gasoline standby generator set powered by a Generac OHV engine. It is available at 120 V and 120/240 V, Single-phase, 60 Hz and rated 54.2 A. It holds about 1 L (0.3 gal) of oil. The set measures 850.9×673.1×698.5 mm (33.5×26.5×27.5 in) and weighs about 78.02 kg (172 lb). An integrated tank holds 24.98 L (6.6 gal), roughly 10 hours of runtime.

6 kW
Standby
0.163 L
Displacement
1.0 L
Oil capacity
6
Document types

How to read your Generac serial & model number →

Specifications

Fuelgasoline
Frequency60.0 Hz
Standby power6 kW
Standby kVA8
Prime power6 kW
Emissions49 States
Oil capacity1.0 L
Voltage options120 V, 240 V
PhaseSingle
Rated current54.2/27.1 A
Circuit breaker[20, 30] A
Battery voltage12VDC V
Battery quantity1
Dimensions (L×W×H)850×673×698 mm
Dry weight78 kg
Fuel tank24.98 L
Tank runtime10.0 hr

Engine

Generac OHV
Oil capacity1.1 L
Displacement0.163 L
AspirationAir-Cooled
Rated speed3600 rpm

Maintenance & consumables

for the Generac OHV
ItemSpecCapacityPart #Interval
Air filter— find
Fuel filter— find
Oil filter— find
Belt— find
Coolant—
Oil1.5—500 hr

Common questions

What is the power rating of the Generac GP6500?

The Generac GP6500 is rated 6 kW standby (8.125 kVA).

What engine does the Generac GP6500 use?

The Generac GP6500 is powered by the Generac OHV engine.

What fuel does the Generac GP6500 use?

The Generac GP6500 runs on gasoline.

What is the oil capacity of the Generac GP6500?

The Generac OHV engine in the Generac GP6500 has an oil capacity of 1.1 liters.

Troubleshooting

5

Symptoms & remedies

SymptomCauseRemedy
Recoil Cord Will Not PullBADTEST 49 – TEST RECOIL FUNCTION TEST 50 – TEST ENGINE FUNCTION REPAIR OR REPLACE
Engine Starts Hard and Runs RoughADJUST VALVES AND RETESTBAD TEST 40 – CHECK AND ADJUST GOVERNOR TEST 38 – CHECK FLYWHEEL
Engine Turns Over But Will Not StartNO SPARKTEST 39 – REMOVE WIRE 18 / SHUTDOWN LEAD NO SPARK GOOD BAD REPLACE SWITCH BAD CHECK ENGINE OIL LEVEL TEST 45 – CHECK OIL LEVEL SWITCH TEST 24 – TEST OFF-ON SWITCH REPLACE SWITCH REPLENISH OIL REPLACE LOW OIL ALARM GOOD OIL LEVEL O.K. OIL LEVEL LOW BAD
Engine ‘Hunts’ / Erratic IdleNO SURGING STILL SURGINGTEST 29 – CHECK CARBURETION GOOD TEST 40 – CHECK AND ADJUST GOVERNOR
Engine Will Not CrankNO VOLTAGE MEASURED 12 VDC MEASUREDRECHARGE OR REPLACE BATTERY – CLEAN, REPAIR OR REPLACE BAD CABLE(S) BAD REPLACE BAD GOOD NO VOLTAGE MEASURED BAD 12 VDC MEASURED REPLACE STARTER MOTOR IF DEFECTIVE GOOD CHECK FOR MECHANICAL BINDING OF THE ENGINE OR ROTOR

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

136
Part #DescriptionQtySystem
005819-026R Wet Cell BatteryBattery Amazon eBay $238.00 PartsGeek
022304WASHER, FLAT 13X22Washer PartsGeek
048031BCLAMP, HOSE, 094Clamp PartsGeek
067989NUT, M84Nut PartsGeek
070185EFiltro de aceite1Oil filter Amazon eBay $23.00 PartsGeek
070185ESEngine oil filter, spin-on1Oil filter Amazon eBay $23.00 PartsGeek
070185FEngine oil filter1Oil filter Amazon eBay $14.99 PartsGeek
070264WASHER, FLAT, M10X41Washer PartsGeek
0B1214BOLT, M8X455Bolt PartsGeek
0D4968OUTLET 20A 120V DPLX2Outlet PartsGeek
0D4999PIN, COTTER2Pin PartsGeek
0D7178TControl panel fuse, 7.5A1Fuse PartsGeek
0E7585ASpark Plug1Spark plug Amazon eBay $15.99 PartsGeek
0E9371AAir Filter1Air filter Amazon eBay $19.48 PartsGeek
0E9470BOLT, M8X164Bolt PartsGeek
0E9507BBOLT, M8X252Bolt PartsGeek
0E9507CBOLT, M8X204Bolt PartsGeek
0G0767ABujía (RC12YC o equivalente)1Spark plug Amazon eBay $22.95 PartsGeek
0G5442SnapButton1Button PartsGeek
0G5894Air filter element1Air filter Amazon eBay $19.99 PartsGeek
0G8321METER, HOUR1Meter PartsGeek
0G8382SCREW, PAN, M5 X 168Bolt PartsGeek
0G84420107NUT, M104Nut PartsGeek
0G84420194BOLT, M6X121Bolt PartsGeek
0G84420272NUT, M61Nut PartsGeek
0G8442CENGINE, 389cc1Engine PartsGeek
0G8442C113GRIP, HANDLE1Handle PartsGeek
0G8542BRACKET, MUFFLER1Bracket PartsGeek
0G8758OUTLET 30A 120/250V SPCGR1Outlet PartsGeek
0G9028GASKET, EXH, CYLNDR1Gasket PartsGeek
0G9391COVER, OUTLET1Cover PartsGeek
0G9392COVER, OUTLET2Cover PartsGeek
0G9449Battery Type: Lead Acid (12V DC, 9Ah)1Battery Amazon eBay $28.99 PartsGeek
0G9756COVER, BACK PANEL1Cover PartsGeek
0G9757AHOSE, FUEL, 08X551Hose PartsGeek
0G9757BHOSE, FUEL, 08X801Hose PartsGeek
0G9911SWITCH, ON/OFF RED-ROTARY1Switch PartsGeek
0G9914FILTER, FUEL1Filter PartsGeek kuduparts $8.00
0H0204PIN, AXLE2Pin PartsGeek
0H0265CBREAKER, CIRCUIT, 20A2Breaker PartsGeek
0H0265EBREAKER, CIRCUIT, 30A2Breaker PartsGeek
0H0919BRUSH, ALTERNATOR1Brush PartsGeek
0H0958CAP, FUEL1Cap PartsGeek
0H12810104BOLT, M6X1854Bolt PartsGeek
0H1326FILTER, FUEL1Filter Amazon eBay $7.99 PartsGeek
0H1411BRUBBER, FUEL TANK4Rubber PartsGeek
0H1610ALINING, ANTI-CRUSH4Lining PartsGeek
0H1663Battery Type: Lead Acid (12VDC, 18AH)1Battery PartsGeek
0H1780BOLT, CURVED HEAD, M8X406Bolt PartsGeek
0H1781BOLT, CARRIAGE HEAD M8XX462Bolt PartsGeek
0H1782NUT, LOCKING CAP, M89Nut PartsGeek
0H1783MOUNT, RUBBER VIB4Mount PartsGeek
0H2579BAVR1Avr PartsGeek FridayParts $20.69
0H3049COVER, GEN-END1Cover PartsGeek
0H3421SSpark PlugSpark plug Amazon eBay $283.32 PartsGeek
0H7510A0SRVTANK, FUEL, 7 GAL1Tank PartsGeek
0H9005METER, FUEL1Meter PartsGeek
0H91980158BOLT, FLANGE, M5X2202Bolt PartsGeek
0H91980171HOUSING, REAR BEARING1Housing PartsGeek
0H9749AST03PANEL RAIL BACK1Panel PartsGeek
0H97560ST15HANDLE1Handle PartsGeek
0H9760CAP, END1Cap PartsGeek
0H9761ALTERNATOR SCROLL1Scroll PartsGeek
0H9763AMUFFLER1Muffler PartsGeek
0H97670ST15BRACKET, HANDLE1Bracket PartsGeek
0H9775BPANEL ASSY., CONTROL1Panel PartsGeek
0J00620100BOLT, M5X101Bolt PartsGeek
0J0974SHUT-OFF VALVE, FUEL1Valve PartsGeek
0J35220156BOLT, M6X201Bolt PartsGeek
0J35220161NUT, M82Nut PartsGeek
0J35220173CLAMP, 0121Clamp PartsGeek
0J35220174CLAMP, 0101Clamp PartsGeek
0J4535AMANIFOLD, EXHAUST1Manifold PartsGeek
0J4536FACE PLATE, CNTRL PNL ASSY.1Plate PartsGeek
0J4691GASKET, EXH., MUFFLER1Gasket PartsGeek
0J47870118WASHER, FLAT 6X0.81Washer PartsGeek
0J4967BOLT, M5X126Bolt PartsGeek
0J4968BOLT, M5X163Bolt PartsGeek
0J6072TERMINAL1Terminal PartsGeek
0J7921ROLL OVER VALVE1Valve PartsGeek
0J8478Filtro de aire1Air filter Amazon eBay $16.00 PartsGeek
0J8478SAir filter1Air filter Amazon eBay $17.99 PartsGeek
0J86620100FRAME1Frame PartsGeek
0J86620103BOLT, M10X2751Bolt PartsGeek
0J86620104BAFFLE1Baffle PartsGeek
0J86620108NUT, M46Nut PartsGeek
0K0091HOSE FORMED ROV-AIRBOX1Hose PartsGeek
0K0092WIRE ASSY., GRND1Wire PartsGeek
0K0093WASHER, SPECIAL LOCK1Washer PartsGeek
0K0094NUT, M61Nut PartsGeek
0K0097FRAME, BENT FOOT2Frame PartsGeek
0K0098NUT, M84Nut PartsGeek
0K0099FOOT, RUBBER2Foot PartsGeek
0K0100BOLT, M6X282Bolt PartsGeek
0K0105NUT, M62Nut PartsGeek
0K1291ALTERNATOR ASSY.1Alternator PartsGeek
0K6011WHEEL2Wheel PartsGeek
338-4086Genset to Pump Actuator1Pump PartsGeek
338-4088For Oil Temperature Display from Sensor1Sensor PartsGeek
62 590 01Oil Cooler, 20RCA/LOil cooler PartsGeek
RC12YCSpark plug (V-twin GT-999, one per cylinder)2Spark plug Amazon eBay $12.98 PartsGeek
REC1220550Raw Marine Water Pump1Pump PartsGeek
005703-0Paint KitService part / kit Amazon eBay PartsGeek
005818-0Generator Model No.Service part / kit PartsGeek
005839-0Fascia Base Wrap KitService part / kit Amazon eBay PartsGeek
006004-0Scheduled Maintenance KitService part / kit Amazon eBay PartsGeek
006016-0240V Conversion KitService part / kit Amazon eBay PartsGeek
006560-0Maintenance KitService part / kit PartsGeek
006572-0Fuel LockService part / kit PartsGeek
006806-0Scheduled Maintenance KitService part / kit Amazon eBay PartsGeek
021127AService part / kit PartsGeek
0G66240KEYService keys (pair)1Service part / kit PartsGeek
0H97480ST03FRAME, RAIL1Service part / kit PartsGeek
0L4836AFUEL LINE FLEX 3/4 NO PVC (13,16-24KW)1Service part / kit PartsGeek
10000013645DECAL AUX SHUTDOWN (13,16-24KW)2Service part / kit PartsGeek
10000029516BADGE ADHESIVE GUARDIAN (20KW)1Service part / kit PartsGeek
10000044454EWAR SEGSI (ESE1) EN (13, 16-24KW)1Service part / kit PartsGeek
274697Terminal Lug (X-6207-9, X-83-2, X-22-1)6Service part / kit PartsGeek
274778Terminal Lug Kit (600 MCM - 02)4Service part / kit PartsGeek
274779Terminal Lug Kit (750 MCM - 3/0)2Service part / kit PartsGeek
338-4084Genset to Remote ON/OFF Switch1Service part / kit PartsGeek
338-4085Genset to Battery1Service part / kit PartsGeek
338-4087Lead Harness1Service part / kit PartsGeek
338-4089For AC Display from Genset1Service part / kit PartsGeek
696471068528Transfer Switch Model 6852Service part / kit PartsGeek
696471068535Transfer Switch Model 6853Service part / kit PartsGeek
696471071481Transfer Switch Model 9854Service part / kit PartsGeek
696471071498Transfer Switch Model 9855Service part / kit PartsGeek
7129-0UPC: 696471072716 (50-State/CSA)1Service part / kit PartsGeek
7668-0UPC: 696471073102 (50-State/CSA)1Service part / kit PartsGeek
929-01001Service part / kit PartsGeek
96471068542Transfer Switch Model 6854Service part / kit PartsGeek
A0001920610-BOperator’s Manual for Power WasherService part / kit PartsGeek
G006806-0Scheduled Maintenance KitService part / kit PartsGeek
G050277DECAL OIL DRAIN (10,20-24KW)1Service part / kit PartsGeek
GM57968Carburetor Heater for 20 kW Models1Service part / kit PartsGeek

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Prime
Prime50%
Prime100%16.284.3
Standby

Available documents

Brochure — 0177410SBY (Generac)Brochure — 0178070SBY (Generac)Brochure — 0180290SBY (Generac)Brochure — 0180710SBY (Generac)Brochure — 0180710sby-portable-full-line-catalog (Generac)Brochure — 0183180SBY (Generac)Brochure — 0189200SBY (Generac)Brochure — 0189200sbygpseriesportabless newlowres (Generac)Brochure — 0192200SBY (Generac)Brochure — 0196620-a-gp6500 (Generac)Brochure — 0196620SBY GP6500 5940 5946 5976 (Generac)Brochure — 0197150SBY GP6500E 5941 (Generac)Spec sheet — 0179960SBY (Generac)Spec sheet — 0180280SBY (Generac)Spec sheet — 0181510SBY (Generac)Spec sheet — 0189280SBY (Generac)Spec sheet — 0189290SBY (Generac)Spec sheet — 0192190SBY (Generac)Spec sheet — 0197810-a-gp6500e (Generac)Spec sheet — Generac GP (Generac)Operator's manual — 27543970-bb67-4fef-9192-aafaf106b93e (Generac)Operator's manual — 7672-gp-6500-cos-with-crd-49st-spec-sheet (Generac)Operator's manual — 7680-and-7683-gp6500-cosense-spec-sheet (Generac)Operator's manual — 7682-gp-6500e-49st-and-49stcsa-spec-sheet 10000041060 (Generac)Operator's manual — 7690-gp6500-49st-portable-generator-spec-sheetOperator's manual — 7713-gp6500e-portable-generator-spec-sheetOperator's manual — Generac GP6500 Series 7682 2019Operator's manual — gp6500-49st-50st-co 7680-and-7683 -spec-sheet 10000038347 (Generac)Operator's manual — gp6500-49st-co-cord 7672 spec-sheet 10000032664 (Generac)Owner's manual — gp-series-portable-generator-owners-manual (Generac)Parts manual — 5d13d0f5-9d42-4d8b-bc73-397c45d9195c (Generac)Service manual — 0198280-A-Portable-Maint-Kits (Generac)Service manual — GP Series Service Manual (Generac)Service manual — Generac Portable Service Manual 0H0285 (Generac)

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