Small Business Backup & Home Standby Generators
When the grid goes down, your power doesn’t have to. At Colorado Standby, we carry a wide selection of home generators for sale, including industry-leading options from Champion and Cummins. Whether you’re safeguarding your family during a storm or keeping your business running during an outage, these models deliver dependable, automatic backup power when it matters most.
Choose from whole house generators equipped with automatic transfer switches to keep essential appliances and everything else running without interruption. Our lineup includes home standby generators ranging from compact 8.5kW models to powerful 20kW+ units designed for seamless energy backup and fuel efficiency.
Need a business backup generator? We’ve got you covered with commercial-grade systems that ensure continuous operation for your office, retail store, or critical infrastructure. These systems offer dual fuel capability, quiet operation, and rugged performance in any condition.
Whether you’re shopping for whole house generators or upgrading to a smarter, quieter home standby generator, Colorado Standby has the right power solution for your needs. Enjoy factory-direct shipping, free liftgate delivery, and expert support from our knowledgeable team.
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From voltage regulators to fuel pumps, our generator parts list includes high-quality options for residential, commercial, and industrial applications. Shop our collection online to get the reliable power equipment parts you need—delivered straight to your door.
Find the Right Replacement Generator Parts
Generators are essential for uninterrupted power, and having the right components is key to long-term performance. Our selection includes:- Fuel System Parts – Keep your generator running efficiently with replacement fuel filters, injectors, and pumps.
- Voltage Regulators & Control Boards – Ensure stable power output with high-quality regulators and electronic controls.
- Cooling System Parts – Prevent overheating with radiators, water pumps, and cooling fans.
- Battery & Electrical Components – From starters to alternators, we carry the parts needed for smooth operation.
Shop Generator Parts Online with Confidence
When you buy power equipment parts from Colorado Standby, you get:- Top-Quality Products – Sourced from trusted manufacturers for long-lasting performance.
- Expert Support – Our knowledgeable team can help you find the exact replacement generator parts you need.
- Fast Shipping – Get critical components delivered quickly to minimize downtime.
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Don’t see the products you are looking for?
Please use the Products Drop-Down in the main menu above to select a different category.
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Showing 1–12 of 125 results
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RS20Cummins RS20A 20kW Generator Available Models:
Please select variable options for specific price.
- RS20A Generator with NO Extreme Cold Weather Kit.
- RS20AE Generator includes Extreme Cold Weather Kit
- RS20A + RA200SE includes Generator with RA200SE ATS – Does NOT Extreme Cold Weather Kit
- RS20AE +RA200SE includes Generator with RA200SE ATS & Extreme Cold Weather Kit (select “Yes” on all 3 options)
- Watts or kW: 20
Available on backorder
$5,247.76 – $6,448.24Select options This product has multiple variants. The options may be chosen on the product page -
RS25The Cummins RS25 is a 25kW generator that delivers quiet, reliable whole-home backup power with advanced controls and a weather-resistant design.
- Watts or kW: 21-50
Available on backorder
$16,035.10 – $16,287.26Select options This product has multiple variants. The options may be chosen on the product page -
RS17ACCummins Connect Series: RS17A/AE-17kW-NG/LPV-120/240v-1PH
Available Models: RS17A & RS17AE
Please select variable options for specific price.Available on backorder
$4,783.54 – $5,007.82Select options This product has multiple variants. The options may be chosen on the product page -
OTEC125
Cummins 125Amp OTEC Automatic Transfer Switch
Available Models:
Please select variable options for specific price.Available on backorder
$2,619.35 – $3,311.45Select options This product has multiple variants. The options may be chosen on the product page -
OTEC225
Cummins 225Amp OTEC Automatic Transfer Switch
Available Models:
Please select variable options for specific price.Available on backorder
$3,344.41 – $7,135.88Select options This product has multiple variants. The options may be chosen on the product page -
OTEC400
Cummins 400Amp OTEC Automatic Transfer Switch
Available Models:
Please select variable options for specific price.Available on backorder
$4,229.94 – $5,354.77Select options This product has multiple variants. The options may be chosen on the product page -
RS13ACCummins Connect Series: RS13A/AE-13kW-NG/LPV-120/240v-1PH
Available Models:
Please select variable options for specific price.Available on backorder
$3,965.27 – $4,320.83Select options This product has multiple variants. The options may be chosen on the product page
