Best Portable Diesel Generators Updated July 2025

Join the millions that have trusted BuyersGuide.org to help them make smarter buying decisions. Let our independent expert reviews and data-driven shopping recommendations help you find the one that's right for you.

Best Portable Diesel Generators
2025 Buyer's GuideUpdated July 2025
Sort by:

9.9

1

9.9

DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator - Gas & Propane, Electric Start, Whole Home Backup Power, Transfer S...
Ease of assembly
Value for money
Picked by 263 people this week!
Picked by 263 people this week!

9.9

1
DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator - Gas & Propane, Electric Start, Whole Home Backup Power, Transfer S...
Ease of assembly
Value for money

9.7

2

9.7

ERAYAK 4500W Portable Inverter Generator for Home Use, Super Quiet Small Generator for Camping Outdoor Emergency Power Backup, ...
Noise level
Weight
Build quality
Fuel efficiency
Ease of use
Value for money

9.7

2
ERAYAK 4500W Portable Inverter Generator for Home Use, Super Quiet Small Generator for Camping Outdoor Emergency Power Backup, ...
Noise level
Weight
Build quality
Fuel efficiency
Ease of use
Value for money

9.6

3

9.6

Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propan...
Power
Ease of assembly
Build quality
Value for money
Fuel options
Start time

9.6

3
Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propan...
Power
Ease of assembly
Build quality
Value for money
Fuel options
Start time

9.3

4

9.3

WEN 11,000-Watt 120V/240V Dual Fuel Portable Generator with Wheel Kit and Electric Start (DF1100T)
Runs great
Ease of assembly
Generator quality
Value for money
Start time
Build quality

9.3

4
WEN 11,000-Watt 120V/240V Dual Fuel Portable Generator with Wheel Kit and Electric Start (DF1100T)
Runs great
Ease of assembly
Generator quality
Value for money
Start time
Build quality

9.2

5

9.2

Westinghouse 12500 Watt Dual Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas and Propane...
Runs great
Ease of assembly
Build quality
Start time
Power
Value for money

9.2

5
Westinghouse 12500 Watt Dual Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas and Propane...
Runs great
Ease of assembly
Build quality
Start time
Power
Value for money

9.0

6

9.0

Cummins Onan P4500I Portable Inverter Generator, Power Inverter Dual 5V USB Ports for Mobile Charging, Gas Powered for Backup H...
Functionality
Noise level
Convenience
Value for money
Ease of movement
Ease of setup

9.0

6
Cummins Onan P4500I Portable Inverter Generator, Power Inverter Dual 5V USB Ports for Mobile Charging, Gas Powered for Backup H...
Functionality
Noise level
Convenience
Value for money
Ease of movement
Ease of setup

8.8

7

8.8

WEN 4,750-Watt 120V/240V Dual Fuel Portable Generator with Wheel Kit and Electric Start (DF475T)
Functionality
Start time
Ease of assembly
Value for money

8.8

7
WEN 4,750-Watt 120V/240V Dual Fuel Portable Generator with Wheel Kit and Electric Start (DF475T)
Functionality
Start time
Ease of assembly
Value for money

8.6

8

8.6

WEN 3600-Watt Portable Inverter Generator, RV-Ready, Quiet and Lightweight with Fuel Shut Off (56360i)
Runs great
Ease of start
Build quality
Power
Portable
Value for money

8.6

8
WEN 3600-Watt Portable Inverter Generator, RV-Ready, Quiet and Lightweight with Fuel Shut Off (56360i)
Runs great
Ease of start
Build quality
Power
Portable
Value for money

8.5

9

8.5

Westinghouse 12500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propan...
Power
Ease of setup
Build quality
Fuel capacity
Value for money
Start time

8.5

9
Westinghouse 12500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propan...
Power
Ease of setup
Build quality
Fuel capacity
Value for money
Start time

8.2

10

8.2

Jackery Solar Generator 3000 PRO 400W, 3024Wh Power Station with 2x200W Solar Panels, Fast Charging in 2.4 Hours, Intelligent B...
Functionality
Power
Ease of use
Build quality

8.2

10
Jackery Solar Generator 3000 PRO 400W, 3024Wh Power Station with 2x200W Solar Panels, Fast Charging in 2.4 Hours, Intelligent B...
Functionality
Power
Ease of use
Build quality

Our Top Choice

9.9

1

9.9

DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator - Gas & Propane, Electric Start, Whole Home Backup Power, Transfer S...
Ease of assembly
Value for money
Picked by 263 people this week!
Picked by 263 people this week!

9.9

1
DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator - Gas & Propane, Electric Start, Whole Home Backup Power, Transfer S...
Ease of assembly
Value for money