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Cummins Onan · Portable generator

Onan P9500DF EFI

The high-output P9500 platform with EFI, CO shutdown, CARB certification, and longer runtime.

7,500W running9,500W peak74 dBAGasoline + Propane
Check availability Official spec sheet
Onan P9500DF EFI Dual-Fuel Portable Generator
Product image: Cummins

Product decision summary

Researched by · reviewed under the FMG editorial standard · Sep 15, 2026

Trace the evidence · not a hands-on review

Bottom line

Best for specific needs for home emergency backup & food trucks.

Best for: Home emergency backup & Food trucks

Running output

7,500W

Fuel / power

Gasoline + Propane

Weight

211.6 lb

Strongest reasons

  • The high-output P9500 platform with EFI, CO shutdown, CARB certification, and longer runtime.
  • Published sound level is quieter than 63% of its class.
  • Product weight is lighter than 60% of its class.

Know before buying

At 211.6 lb, this is a wheeled or placed unit—not a carry-style generator.

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Never run a fuel-burning generator in a home, garage, shed, or other enclosed or partly enclosed space.

Price intelligence Evidence ledger Accessories & manuals

Key specifications

The numbers that drive the decision.

Published values stay labeled, and every usable metric includes class context. Missing data is shown instead of estimated.

Open complete specifications
SpecificationThis model
Running output7,500WHigher than 24% of its class
Peak / starting output9,500WHigher than 28% of its class
Product weight212 lbLighter than 60% of its class
Published sound level74 dBAQuieter than 63% of its class
Fuel / power sourceGasoline + PropanePortable generator
Best current priceCheck current priceSee current offers at Cummins

Class comparisons use 144 high output portable generators. Runtime figures can use different loads, fuels, or test conditions; confirm the model manual before planning fuel or battery duration.

Product gallery & complete specifications Official imagery, full spec tables, use cases, and source linksView details

Visual spec gallery

The numbers, made scannable.

01 · Output by fuel

Up to 9,500 peak watts

Gasoline7,500W running
62A @ 120V / 31A @ 240V9,500W peak
Propane6,750W running
56A @ 120V / 28A @ 240V8,550W peak

Power output changes by fuel. Match against the rating for the fuel you will actually use.

02 · Runtime & sound

Gas · 25% load

14.4hr

Gas · 50% load

9.6hr

Propane · 25% load

10.8hr

Operational volume

74 dBA

Manufacturer-rated minimum

Onboard tank

6.6 gal (25 L) gasoline

03 · Size & mobility

211.6lb

Dry weight

27.3 × 20.6 × 22.6 in

L × W × H

Handle
Foam-grip single handle
Wheels
10 × 2.5 in wheels
Shipping weight
222.7 lb
Extended length
63.8 in
04 · Connection & control

Start

Electric, remote, recoil

Engine

420cc Cummins Onan EFI OHV 4-stroke

Power quality

≤23% THD · AVR

Safety

Low-oil shutdown · CO shutdown

1 × 120/240V 30A L14-30R · 2 duplex 120V 20A GFCI (5-20R) · 2 × USB-A 5V 2.1A

Complete specifications

Every useful detail we could verify.

Specifications were compiled from Cummins’ current North American product page and official model spec sheet. Always verify the current manual and exact part number before purchase.

Outdoor use only. Fuel-burning portable generators produce carbon monoxide. Follow the manual and current CPSC placement guidance.

Electrical output

Gasoline output
7,500W running / 9,500W peak · 62A @ 120V / 31A @ 240V running · 79A @ 120V / 40A @ 240V peak
Propane output
6,750W running / 8,550W peak · 56A @ 120V / 28A @ 240V running · 71A @ 120V / 36A @ 240V peak
Voltage / frequency
120/240V · 60 Hz
Power quality
Automatic voltage regulator · ≤23% THD
Parallel capable
No

Engine, fuel & runtime

Engine
420cc Cummins Onan EFI OHV 4-stroke · 3,600 rpm
Starting system
Electric, remote, recoil · 98 ft (30 m) remote range
Fuel tank
6.6 gal (25 L) gasoline
Gas · 25% load
14.4 hours
Gas · 50% load
9.6 hours
Propane · 25% load
10.8 hours
Oil
SAE 10W-30 · 1.1 qt / 1.1 L
Altitude
EFI requires no high-altitude kit
Sound
As low as 74 dBA

Connections, safety & portability

AC outlets
1 × 120/240V 30A L14-30R · 2 duplex 120V 20A GFCI (5-20R)
USB / DC
2 × USB-A 5V 2.1A
Grounding
Bonded neutral
Transfer-switch ready
Yes
GFCI outlets
Yes
Protection
Automatic low-oil shutdown · Automatic CO shutdown · Circuit-breaker overload protection
Display
VFT: volts, frequency, runtime, maintenance, lifetime hours
Dimensions
27.3 × 20.6 × 22.6 in
Weight
211.6 lb dry / 222.7 lb shipping
Mobility
Foam-grip single handle · 10 × 2.5 in wheels

Ownership details

Part number
A075C509
Availability
United States
Certification
EPA / CARB
Emissions
EPA / CARB
Spark arrestor
Yes
Residential warranty
3-year limited
Commercial warranty
1-year comprehensive

Best-fit uses

  • Home emergency backup
  • Food trucks
  • Contractor work
  • Large appliances

Standout features

  • Electronic fuel injection
  • Automatic CO shutdown
  • Transfer-switch ready
  • Improved runtime versus carbureted P9500DF

Compatible accessories listed by Cummins

Maintenance kit · Storage cover · Running cover · Propane regulator kit · Key fob · Battery · Transfer-switch cord

Does this model fit your load?

Run your essentials through our independent wattage calculator.

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Sources:Cummins product pageOfficial specification sheetVerified September 15, 2026

Price & Availability

Compare the whole buying route.

The lowest sticker price is not always the best offer. We rank exact-model seller pages using price, stock, shipping, freshness, returns, and warranty details—then show what is still unknown.

Price and delivered cost

Shipping is included only when the seller publishes a usable amount.

Stock and freshness

Current, low-stock, preorder, and stale records are scored differently.

Purchase protections

Published return and warranty terms improve evidence confidence.

Affiliate-neutral ranking

Commission status is recorded but never adds ranking points.

Watch this model

Save it to your shortlist to retain the current price snapshot and turn price and safety watches on or off.

Best current buying route

Cummins Onan P9500DF EFI

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Seller options

1

0 with price

Offer rank

22/100

Relative to listed sellers

Data confidence

30%

5 open fields

Delivered totals

0/1

Shipping included

The only verified seller destination for this exact model. Confirm current price and stock with the seller.

Seller data checked Sep 15, 2026.

Shipping not yet verified.

Open fields: current price, confirmed stock, delivered cost, return window, warranty term.

Prices, local stock, shipping, taxes, installation, and seller terms can change. Confirm the exact model and final checkout total before buying. Affiliate disclosure.

Seller comparison

Every verified exact-model destination.

Browse all priced models

One exact-model seller destination is currently verified. We show the unknown fields so a single listing is never presented as a broad market comparison.

Cummins

Best overall
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Total not available

Availability
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Shipping
Shipping not yet verified
Returns
Not verified
Warranty
Not verified
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30% data confidence · checked Sep 15, 2026

Price history

A durable record, starting with verified snapshots.

We preserve each dated seller observation instead of replacing the old number. Trends use the lowest verified listed price on each observation date—not an estimated market price.

Cummins

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Ownership

What living with it looks like.

Ownership requires a safe fuel plan, hour-based engine service, correct storage, and confidence that parts and support are accessible.

Ownership rule

Use the exact Cummins Onan Onan P9500DF EFI manual for maintenance intervals, fluids, storage limits, and warranty requirements. Similar models are not interchangeable.

Open owner’s manual Manufacturer support

Published warranty

3-year limited

Commercial coverage: 1-year comprehensive. Confirm eligibility and exclusions before purchase.

Service information

2 official resources

An owner or operator manual is linked below for exact service intervals.

Routine upkeep

SAE 10W-30 · 1.1 qt / 1.1 L

Oil, filters, spark plug, fuel system, and starting battery needs vary by model and hours used.

Handling & storage

211.6 lb · Gasoline + Propane

Plan a wheeled route, stable storage position, and help for steps or vehicle loading.

Practical care plan

From delivery to long-term readiness

  1. 1

    Day one

    Register and record the exact unit

    Save the receipt, serial number, seller, warranty terms, and model-specific manual before packaging is discarded.

  2. 2

    Before first load

    Complete setup and break-in correctly

    Add the specified oil, inspect the fuel system, position the generator outdoors, and follow the exact break-in and first-service instructions in the manual.

  3. 3

    Before every use

    Check the safety-critical basics

    Check oil level, leaks, cords, outlets, grounding instructions, CO-safe placement, and the transfer equipment needed for any building connection.

  4. 4

    By hours and season

    Log service and keep it outage-ready

    Track running hours and perform oil, filter, spark-plug, fuel-system, and starting-battery service at the intervals published for this exact model.

Before you buy

Five ownership questions to settle first

  • Confirm that 3-year limited applies to your seller, region, and intended use.
  • Open the official manual for Onan P9500DF EFI and review setup, service intervals, warnings, and storage requirements.
  • Verify access to Cummins Onan parts, authorized service, and a practical return path in your area.
  • Plan approved fuel storage, outdoor operating clearance, weather protection, and safe refueling.
  • Plan how the 211.6 lb unit will move over steps, gravel, and door thresholds.
Manuals and compatible accessories Compare seller protections

Evidence

See the proof behind the conclusion.

We separate sourced facts, reproducible calculations, editorial judgments, and missing evidence. That makes every important claim easier to inspect—and harder to overstate.

Published-data coverage

88%documented

7 of 8 relevant evidence fields are documented for this model.

Source-backed editorial analysis—not a hands-on or laboratory test.

Read our evidence standard Explore original market research

Source record

3 traceable sources

Last reviewed Sep 15, 2026

Hands-on testing

Checking ledger…

No manufacturer data is presented as an independent test

Verified owners

Checking reports…

Percentages stay hidden until the sample qualifies

CPSC screening

No model-text match

39 generator recall records screened

88%

Documented fields

3

Traceable sources

3

Reproducible calculations

1

Open evidence gaps

Original calculation

Published surge reserve

2,000W

9,500W peak − 7,500W running

26.67% above rated running output. This is arithmetic headroom, not a promise that every motor load will start.

Original calculation

Rated power density

35.44 running W/lb

7,500W ÷ 211.6 lb

A catalog-derived portability ratio. It does not account for handles, wheels, shape, or how the weight feels in use.

Original calculation

Strongest class-relative spec

63th percentile

Published sound level: 74 dBA ranked within 144 high output portable generators

Quieter than 63% of its class

Claim-by-claim evidence ledger

Evidence typeClaimBasisTrace
Published factSource-backed7,500W running and 9,500W peak output are recorded for this model.Model-specific output fields in the catalog.Official model source
Published factSource-backedGasoline + Propane power and 211.6 lb product weight are recorded.Published configuration and dimensional data.Official model source
Original calculationReproduciblePublished surge reserve: 2,000W.9,500W peak − 7,500W runningCalculation standard
Original calculationReproducibleRated power density: 35.44 running W/lb.7,500W ÷ 211.6 lbCalculation standard
Original calculationReproducibleStrongest class-relative spec: 63th percentile.Published sound level: 74 dBA ranked within 144 high output portable generatorsCalculation standard
Editorial judgmentEditorialBest for specific needs for home emergency backup & food trucks.Class score 48/100, declared best use, comparative specifications, and explicit buying cautions.Inspect the score
Editorial judgmentEditorialAt 211.6 lb, this is a wheeled or placed unit—not a carry-style generator.Editorial risk check based on product category, weight, output, price availability, and missing fields.Judgment standard
Open evidence gapCautionPublished price is not sufficiently documented in the current record.The field remains unknown rather than being inferred from a related model or marketing language.Not available

What this evidence cannot prove

  • No Find My Generator hands-on test, instrumented load test, teardown, or long-term ownership trial is claimed for this page.
  • Manufacturer specifications may use different fuels, loads, test distances, temperatures, or operating modes. Cross-brand comparisons inherit those differences.
  • A reliable public price was not available, so price-efficiency analysis is excluded.
  • Published price is missing and receives no invented or estimated value.

Editorial analysis for Cummins Onan Onan P9500DF EFI. Source record last verified Sep 15, 2026. Corrections can be submitted through the contact page with a model-specific source.

Ownership resources

Accessories, manuals, and documents.

Start with the exact Cummins Onan Onan P9500DF EFI model or item number. Accessory families can look alike while using different connectors, electrical limits, engines, or mounting points.

Compatible accessories

Match by model and connection.

Verify exact fit

Generator power cord or inlet connection

Use a correctly rated cord or professionally selected inlet connection for the intended load.

Match voltage, amperage, blade pattern, and wire rating to L14-30R. Home connections require approved transfer equipment and qualified installation.
View official accessory options
Verify exact fit

Maintenance kit and service parts

Model-matched filters, spark plugs, batteries, oil supplies, and service parts support scheduled maintenance.

Match the complete Onan P9500DF EFI model or item number and follow the maintenance table in its manual.
View official accessory options
Verify exact fit

Storage cover or approved running shelter

A fitted storage cover protects a cooled, stored generator. A running shelter must be designed for generator operation.

Never run a fuel-burning generator indoors or inside a storage cover. Follow the manual’s clearance and ventilation requirements.
View official accessory options

Manuals & PDFs

Official product materials.

Specification sheetSupport pageManufacturer performance, electrical, dimensional, and equipment data.Manuals and document lookupSupport pageSearch Cummins Onan support materials using the complete model, item, or serial number.

Compatibility note: Links lead to manufacturer or official retailer resources. Confirm the full model or item number, connector type, voltage, amperage, and published compatibility list before buying. Installation involving a home panel, inlet, transfer switch, or fuel plumbing should be handled as required by local code.

Deeper analysis

Open the details you need

The key decision is above. These supporting scorecards, owner signals, and evidence notes stay out of the way until you want to inspect them.

Fit and score detailsSee the class benchmarks and personalize the fit score for your needs.

Find My Generator score

48/ 100

Best for specific needs

Compared with 144 high output portable generators in the current catalog.

Power26

Running and peak output versus the class

Portability60

Lower weight scores higher

Quietness63

Lower published dBA scores higher

Fuel flexibility90

Multiple fuel choices

Class comparison

See what each spec really means.

A number is more useful with context. Each row shows this model beside its class median and translates the difference into a percentile.

Running output

Higher than 24% of its class

This model · 7,500W
Median · 9,100W

Peak output

Higher than 28% of its class

This model · 9,500W
Median · 11,350W

Product weight

Lighter than 60% of its class

This model · 212 lb
Median · 216 lb

Published sound level

Quieter than 63% of its class

This model · 74 dBA
Median · 74 dBA

How the score works: Scores use published specs and are relative to comparable products in this catalog. Missing specs are excluded and remaining weights are normalized. Runtime is the longest manufacturer-published figure and may use a different load or fuel than another model.

Size a generator for your own appliances

Starter Fit Score

78/ 100

Good fit

For a 3,000W target and a $1,500 budget.

Clears your critical profile limits

Why it scored this way

A score you can inspect and change.

This personal score is separate from the model’s class score. It measures fit against your priorities and gives neutral partial credit when price or noise data is missing.

Power fit

31.7/35

Clears your 3,000W running target.

Budget fit

11/20

Price is not published; confirm the current offer.

Fuel fit

15/15

Gasoline + Propane works with your flexible fuel preference.

Portability

4.5/10

211.6 lb against your medium portability priority.

Noise fit

5.5/10

74 dBA against your medium quietness priority.

Use-case fit

10/10

Home-backup fit rewards adequate output and fuel flexibility.

Tune my profile
Testing, reviews and evidenceCheck hands-on testing status, owner reliability signals, sources, and data confidence.
Checking the hands-on test ledger…

Testing protocol

The methods behind every result.

This category-specific protocol defines the questions, equipment, conditions, outputs, and safety gates required for this exact model. Published specifications stay visibly separate from hands-on measurements.

Open the hands-on test ledger Read the full test protocol Download measurement worksheet

Manufacturer-published baselines

Rated running output

7,500W

Published

Peak / starting output

9,500W

Published

Product weight

211.6 lb

Published

Published sound level

74 dBA

Published

These numbers organize the test plan. They are not independent confirmations.

Model-specific test matrix

Questions the measurements must answer.

01

Planned measurement

Continuous output & regulation

Pending

Can Onan P9500DF EFI hold useful loads without unacceptable voltage or frequency drift?

After manufacturer-specified warm-up, apply a correctly rated resistive load bank at 25%, 50%, 75%, and 100% of rated running output. Hold each step for a defined interval and continuously log watts, volts, frequency, and protective events.

Sustained wattsVoltage rangeFrequency rangeFaults or shutdowns
02

Planned measurement

Starting-load response

Pending

How much voltage and frequency sag occurs during a repeatable stepped starting load?

Use a controlled, instrumented starting-load fixture within published limits. Repeat the same step three times and record the lowest voltage, lowest frequency, recovery time, and whether protection trips.

Peak delivered wattsVoltage sagFrequency sagRecovery time
03

Planned measurement

Fuel use & runtime

Pending

How much usable energy is produced from a measured fuel quantity?

Outdoors at a controlled load, record the starting and ending fuel mass or volume using a safe approved method. Log elapsed time and delivered watt-hours without refueling during the valid measurement window.

Runtime at stated loadFuel per hourkWh per unit of fuelTest fuel and mode
04

Planned measurement

Sound profile

Pending

How loud is the unit under repeatable operating loads?

At an open outdoor site, measure A-weighted sound with a calibrated meter at 7 m / 23 ft on four sides at idle or eco, 25%, 50%, and 75% load. Publish distance, meter response, wind, surface, and ambient level.

dBA by side and loadAmbient dBADistanceOperating mode
05

Planned measurement

Cold & hot starting

Pending

How consistently does the unit start under documented conditions?

Follow the manual exactly and record three ambient-temperature starts plus three heat-soaked restarts. Report attempts, elapsed time, start method, battery state, and any intervention.

Attempts per startStart timeAmbient temperatureStart method

Controlled conditions

  • Record the exact model, serial number, firmware, sample source, and test date before any measurement.
  • Log ambient temperature, humidity, elevation, wind, surface, and background sound for every test block.
  • Record instrument model, range, accuracy, and most recent calibration or verification date.
  • Repeat timing, starting, and sound measurements three times when conditions allow; publish every valid run.
  • Keep original notes, load logs, meter exports, photos, and any excluded-run explanation with the result.

Required equipment class

  • Rated resistive or programmable load bank
  • True-RMS power, voltage, and frequency logger
  • Calibrated Class 1 or Class 2 sound-level meter
  • Approved fuel-measurement equipment and fire protection
  • Weather meter, timer, tachometer, and non-contact thermometer

Safety gate

Operate fuel-burning equipment outdoors only, far from occupied structures, openings, and ignition hazards, with working carbon-monoxide monitoring for personnel.

Testing is for qualified personnel using correctly rated load equipment and the manufacturer’s required grounding, bonding, clearance, and protective-device instructions.

Never connect a generator directly to building wiring or bypass overload, temperature, battery, GFCI, or carbon-monoxide shutdown protection.

Stop a run for unstable voltage or frequency, overheating, fuel or electrolyte leakage, abnormal sound, damaged wiring, or any manufacturer fault indication.

Badge rule: this product receives no “FMG Tested” label or score benefit until a real unit, instruments, conditions, valid runs, raw records, and limitations are documented under the public protocol.

Verified owner reliability

What happens after the honeymoon period?

Long-term reports from confirmed owners show starting, maintenance, failure, support, and recommendation outcomes for the Cummins Onan Onan P9500DF EFI.

See how ownership is verified

Verified owners only

Be the first confirmed owner to report back.

Checking reports…

Reliability percentages stay hidden until at least 5 ownership-verified reports are published for this exact model — 5 more needed.

Ownership checked

Purchase or registration evidence is reviewed privately.

Time in service

Reports separate new ownership from 12+ month experience.

Failures documented

Repairs and maintenance are captured, not buried in a star.

Reports stay private while ownership and model details are checked. Contact information is never shown publicly.

Data trust & safety

Fresh specifications. Visible recall checks.

We show when this record was verified, where its specifications came from, and whether its model number appears in the official CPSC generator-recall dataset.

Review soon

Specification freshness

Last verified
Sep 15, 2026
Review target
Oct 15, 2026
Primary source
Manufacturer / official listing

Prices can change faster than technical specifications. Always confirm the current price, exact model number, and manual before purchase.

CPSC model screening

No model-number match found

39 records checked
The Cummins Onan Onan P9500DF EFI model text did not match the generator recall records in our current CPSC snapshot. This is a screening result, not a guarantee or safety certification. Recalls can be serial-number specific, newly published, or use a different product description.
Search CPSC directly Dataset checked Sep 16, 2026

Research owner

Founder & lead researcher

Editorial sign-off

Find My Generator Editorial Review

Accountable editor: Andrew Petla

Review scope: exact model identity, published specifications, calculation inputs, source quality, safety language, and affiliate independence. This is an internal editorial review, not third-party engineering, electrical, or safety certification. Hands-on testing is claimed only when a complete test record is published.Request a correction.
Read the full data methodology

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