Coverage
Warranty and service
There are two separate warranties on any installed generator: the manufacturer covers the machine, and the installer covers the installation. Knowing which is which saves you a lot of time when something needs attention.
Cummins generator warranty at a glance
| Equipment | Base warranty | What is covered | Extended options |
|---|---|---|---|
| Air-cooled RS13A, RS17A, RS20A, RS20AC (and AE/ACE versions) | 5 years or 2,000 hours, whichever comes first, from initial start-up | Parts, labor and travel in years 1 and 2; parts only in years 3 to 5 | 5, 7 or 10 years, from $272.22 |
| Liquid-cooled RS25 to RS150 | 2 years, standby | The spec sheets state the term only; we confirm the detail for a given unit | 5, 7 or 10 years on RS25 to RS100 home standby, from $1,105.56 |
| RA and RSS automatic transfer switches | 2 years from the warranty start date | Parts, labor and reasonable travel | 5, 7 or 10 years on the RA, from $116.67 |
Travel on the air-cooled base warranty is covered up to 300 miles and 6 travel labor hours round trip per occurrence, whichever is less, from the closest authorized Cummins service provider. Every extended term is also capped at 2,000 running hours.
What Cummins asks of the owner
- Notify a Cummins distributor or dealer within 30 days of discovering a failure.
- Install, operate, commission and maintain the unit to Cummins' published policies and guidelines.
- Be able to show the date the unit was commissioned. The warranty clock starts at initial start-up.
- Have warranty work done by an authorized Cummins service provider.
Among the listed exclusions are normal wear and tear, improper or unauthorized installation, lack of maintenance or late servicing, unauthorized repair, improper or contaminated fuel, coolant or lubricant, non-Cummins replacement parts, and cosmetic damage to the enclosure.
Sources: Cummins spec sheet NAS-6254-EN and the Cummins air-cooled home standby brochure, bulletin 5544420 (mart.cummins.com), for the 5 year / 2,000 hour term and the years 1–2 and 3–5 split; Cummins warranty statement A056F206 (residential standby C13N6H to C20N6HC) for the start date, travel limit, owner obligations and exclusions; Cummins RA/RSS transfer switch warranty statement A059L083; the Cummins RS25, RS30 and RS40 spec sheets (cummins.com) for the liquid-cooled 2 year term; operator manual A053X174 for warranty work by an authorized provider. Extended prices: Cummins 2026 HSB extended warranty schedule, List column. Read 9 October 2026.
The manufacturer warranty
The air-cooled Connect range — RS13A, RS17A, RS20A and RS20AC, plus their extreme cold weather versions — carries a 5 year / 2,000 hour limited warranty as standard. Whichever limit you reach first ends the term.
Coverage inside that period is not uniform, and the difference matters: parts are covered for the full five years, while travel and labor are covered for the first two. A failure in year four means the part arrives at no cost, but the visit does not.
The RA automatic transfer switch carries its own separate 2 year warranty. It is a distinct product with a distinct term, so a switch fault in year three is not covered by the generator warranty even though the two were bought and installed together.
Cummins factory extended warranties are available through us in 5, 7 and 10 year terms. They are Cummins’ own coverage, sold by UTS ElectricPros as the authorized dealer, not a third-party service contract. On the air-cooled range they start at $272.22, and every price is published below.
Buying through an authorized dealer is what makes any of this valid. Equipment from an unauthorized reseller may not be covered, so check the seller on the Cummins dealer locator before you buy.
The liquid-cooled range is different, and materially so. RS25 through RS150 carry a 2 year standby base warranty, not five. If you are comparing a 20kW air-cooled unit against a 25kW liquid-cooled one, that gap belongs in the comparison alongside the price. Extended warranty options are available on both and are worth pricing at the point of sale.
Air-cooled figures come from the Cummins specification sheet for the Connect range (NAS-6254-EN). Liquid-cooled figures come from the individual RS-series sheets published by Cummins. For a diesel unit, we confirm the base warranty term with the quote.
Extended warranty prices
These are our prices for Cummins factory extended warranties, which is the Cummins list price. Each term ends at the stated years or running hours, whichever comes first. Parts, labor and travel means a covered failure costs you nothing: the part, the technician's time and the trip to your house. Parts only covers the component, and you pay for the visit.
Buy the extended warranty with the generator. The tables below are for home standby. Small-business and diesel prices follow them.
Air-cooled 13–20kW (generator only)
Covers RS13A, RS13AE, RS17A, RS17AE, RS20A, RS20AE, RS20AC, RS20ACE.
On the RS20AC combo unit this option covers the generator only, not the bundled transfer switch.
| Term | Parts only | Parts, Labor, Travel |
|---|---|---|
| 5 years / 2,000 hrs | — | $550.00 |
| 7 years / 2,000 hrs | $272.22 | $772.22 |
| 10 years / 2,000 hrs | $383.33 | $1,105.56 |
RS20AC combo — generator and included transfer switch
Covers RS20AC, RS20ACE.
| Term | Parts only | Parts, Labor, Travel |
|---|---|---|
| 5 years / 2,000 hrs | — | $661.11 |
| 7 years / 2,000 hrs | $327.78 | $883.33 |
| 10 years / 2,000 hrs | $494.44 | $1,327.78 |
Liquid-cooled 25–50kW, home standby
Covers RS25, RS30, RS36, RS40, RS50.
| Term | Parts, Labor, Travel |
|---|---|
| 5 years / 2,000 hrs | $1,105.56 |
| 7 years / 2,000 hrs | $1,550.00 |
| 10 years / 2,000 hrs | $2,772.22 |
Liquid-cooled 60–100kW, home standby
Covers RS60, RS80, RS100.
| Term | Parts, Labor, Travel |
|---|---|
| 5 years / 2,000 hrs | $1,327.78 |
| 7 years / 2,000 hrs | $2,216.67 |
| 10 years / 2,000 hrs | $3,550.00 |
RA automatic transfer switch
| Term | Parts only | Parts, Labor, Travel |
|---|---|---|
| 5 years / 2,000 hrs | — | $222.22 |
| 7 years / 2,000 hrs | $116.67 | $388.89 |
| 10 years / 2,000 hrs | $183.33 | $611.11 |
Small business, diesel and OTEC transfer switches
A liquid-cooled generator running a business qualifies for a different Cummins schedule than one backing up a home. We confirm which one applies when we quote.
OTEC transfer switch, frames A and B
| Term | Comprehensive |
|---|---|
| 2 years | $144.44 |
| 3 years | $244.44 |
| 4 years | $366.67 |
| 5 years | $461.11 |
| 6 years | $533.33 |
| 7 years | $611.11 |
| 8 years | $688.89 |
| 9 years | $766.67 |
| 10 years | $866.67 |
OTEC transfer switch, frame C
| Term | Comprehensive |
|---|---|
| 2 years | $272.22 |
| 3 years | $484.44 |
| 4 years | $605.56 |
| 5 years | $727.78 |
| 6 years | $888.89 |
| 7 years | $1,022.22 |
| 8 years | $1,144.44 |
| 9 years | $1,272.22 |
| 10 years | $1,433.33 |
OTEC service-entrance switch, frames A and B
| Term | Comprehensive |
|---|---|
| 2 years | $377.78 |
| 3 years | $533.33 |
| 4 years | $755.56 |
| 5 years | $961.11 |
| 6 years | $1,183.33 |
| 7 years | $1,283.33 |
| 8 years | $1,444.44 |
| 9 years | $1,604.44 |
| 10 years | $1,811.11 |
OTEC service-entrance switch, frame C
| Term | Comprehensive |
|---|---|
| 2 years | $566.67 |
| 3 years | $811.11 |
| 4 years | $1,011.11 |
| 5 years | $1,377.78 |
| 6 years | $1,605.56 |
| 7 years | $1,833.33 |
| 8 years | $2,066.67 |
| 9 years | $2,294.44 |
| 10 years | $2,622.22 |
Liquid-cooled 25–40kW, small business
Covers RS25, RS30, RS36, RS40.
| Term | Parts only | Parts, Labor | Parts, Labor, Travel |
|---|---|---|---|
| 3 years / 1,500 hrs | $177.78 | $288.89 | $361.11 |
| 4 years / 2,000 hrs | $300.00 | $577.78 | $722.22 |
| 5 years / 2,500 hrs | $455.56 | $866.67 | $1,088.89 |
| 6 years / 3,000 hrs | $585.56 | $1,106.67 | $1,575.56 |
| 7 years / 3,500 hrs | $737.78 | $1,385.56 | $1,962.22 |
| 8 years / 4,000 hrs | $882.22 | $1,665.56 | $2,357.78 |
| 9 years / 4,500 hrs | $1,025.56 | $1,944.44 | $2,754.44 |
| 10 years / 5,000 hrs | $1,187.78 | $2,241.11 | $3,150.00 |
Liquid-cooled 50–100kW, small business
Covers RS50, RS60, RS80, RS100.
| Term | Parts only | Parts, Labor | Parts, Labor, Travel |
|---|---|---|---|
| 3 years / 1,500 hrs | $444.44 | $827.78 | $1,152.22 |
| 4 years / 2,000 hrs | $844.44 | $1,573.33 | $2,311.11 |
| 5 years / 2,500 hrs | $1,333.33 | $2,485.56 | $3,712.22 |
| 6 years / 3,000 hrs | $1,623.33 | $3,124.44 | $3,984.44 |
| 7 years / 3,500 hrs | $2,022.22 | $3,912.22 | $4,990.00 |
| 8 years / 4,000 hrs | $2,422.22 | $4,698.89 | $5,995.56 |
| 9 years / 4,500 hrs | $2,834.44 | $5,486.67 | $7,000.00 |
| 10 years / 5,000 hrs | $3,573.33 | $6,757.78 | $9,083.33 |
Liquid-cooled 125–150kW, small business
Covers RS125, RS150.
| Term | Parts only | Parts, Labor | Parts, Labor, Travel |
|---|---|---|---|
| 3 years / 1,500 hrs | $577.78 | $1,088.89 | $1,555.56 |
| 4 years / 2,000 hrs | $1,222.22 | $2,211.11 | $2,961.11 |
| 5 years / 2,500 hrs | $1,777.78 | $3,277.78 | $4,666.67 |
| 6 years / 3,000 hrs | $1,944.44 | $3,744.44 | $5,166.67 |
| 7 years / 3,500 hrs | $2,211.11 | $4,188.89 | $5,822.22 |
| 8 years / 4,000 hrs | $2,944.44 | $5,622.22 | $7,772.22 |
| 9 years / 4,500 hrs | $3,733.33 | $7,033.33 | $9,750.00 |
| 10 years / 5,000 hrs | $5,000.00 | $8,666.67 | $12,555.56 |
Diesel 20kW
Covers C20D6.
| Term | Parts only | Parts, Labor | Parts, Labor, Travel |
|---|---|---|---|
| 3 years / 1,500 hrs | $300.00 | $500.00 | $755.56 |
| 4 years / 2,000 hrs | $544.44 | $977.78 | $1,466.67 |
| 5 years / 2,500 hrs | $877.78 | $1,477.78 | $2,211.11 |
| 6 years / 3,000 hrs | $1,133.33 | $2,000.00 | $3,066.67 |
| 7 years / 3,500 hrs | $1,333.33 | $2,488.89 | $3,333.33 |
| 8 years / 4,000 hrs | $1,700.00 | $3,000.00 | $3,833.33 |
| 9 years / 4,500 hrs | $1,977.78 | $3,488.89 | $5,377.78 |
| 10 years / 5,000 hrs | $2,277.78 | $3,955.56 | $5,944.44 |
Diesel 30–50kW
Covers C30D6, C50D6.
| Term | Parts only | Parts, Labor | Parts, Labor, Travel |
|---|---|---|---|
| 3 years / 1,500 hrs | $355.56 | $577.78 | $811.11 |
| 4 years / 2,000 hrs | $733.33 | $1,200.00 | $1,655.56 |
| 5 years / 2,500 hrs | $1,100.00 | $1,700.00 | $2,488.89 |
| 6 years / 3,000 hrs | $1,311.11 | $2,244.44 | $3,222.22 |
| 7 years / 3,500 hrs | $1,644.44 | $2,777.78 | $4,055.56 |
| 8 years / 4,000 hrs | $1,966.67 | $3,333.33 | $4,311.11 |
| 9 years / 4,500 hrs | $2,300.00 | $3,933.33 | $5,666.67 |
| 10 years / 5,000 hrs | $2,688.89 | $4,555.56 | $6,666.67 |
Diesel 80–100kW
Covers C80D6C, C100D6C.
| Term | Parts only | Parts, Labor | Parts, Labor, Travel |
|---|---|---|---|
| 3 years / 1,500 hrs | $355.56 | $577.78 | $811.11 |
| 4 years / 2,000 hrs | $733.33 | $1,200.00 | $1,655.56 |
| 5 years / 2,500 hrs | $1,100.00 | $1,700.00 | $2,488.89 |
| 6 years / 3,000 hrs | $1,311.11 | $2,244.44 | $3,222.22 |
| 7 years / 3,500 hrs | $1,644.44 | $2,777.78 | $4,055.56 |
| 8 years / 4,000 hrs | $1,966.67 | $3,333.33 | $4,311.11 |
| 9 years / 4,500 hrs | $2,300.00 | $3,933.33 | $5,666.67 |
| 10 years / 5,000 hrs | $2,688.89 | $4,555.56 | $6,666.67 |
Our installation warranty
We warrant our own workmanship: the electrical tie-in, the transfer switch installation, the pad and the commissioning. If something we installed fails because of how we installed it, we come back and fix it and there is no invoice.
The gas line is run by a licensed plumber. On a turnkey job, where we hire that plumber, we stand behind the gas line too: call us, and we get it fixed at no charge. If you chose to hire your own plumber or propane company for the gas portion, they warrant that work.
This is the practical argument for buying equipment and installation from the same company. When the sale and the install are split across two businesses, a fault becomes a question of whose fault it is, and you are the one holding both phone numbers.
What voids coverage
Skipped maintenance is the leading cause. A standby generator needs oil, filters and an annual inspection on a defined interval; documented service is normally required for warranty claims. Unauthorized modification and improper fuel are the other two common causes. See what a service visit covers.
Who to call
Call us first, at any time, for anything. If it is a manufacturer warranty matter, we authorize the warranty work ourselves as the Cummins dealer, straight away, then open the claim and manage it. If it is an installation matter we handle it directly. You should not have to work out which category your problem falls into — that is our job.
One thing that helps before you call: if the unit has shut itself down it is blinking a numbered fault code on the light inside the enclosure. Reading that code takes a minute, and it often tells us whether we are looking at a covered component or at something you can correct yourself in less time than the call takes.
Questions
How much is a Cummins extended warranty?
On the air-cooled 13kW to 20kW home standby units, Cummins factory extended coverage starts at $272.22 for 7 years of parts-only coverage, $550.00 for 5 years of parts, labor and travel, and $1,105.56 for 10 years of parts, labor and travel. Liquid-cooled, transfer switch, small-business and diesel prices are in the tables on this page. These are our selling prices, the Cummins list price, and the coverage is Cummins' own, not a third-party service contract.
Does buying from an online reseller void the warranty?
Buying from an unauthorized reseller frequently means the manufacturer warranty is not honored, and self-installation or installation by an unlicensed party can void it as well. If a price online looks materially below what authorized dealers show, that is usually the reason.
Do you service generators you did not install?
Yes, subject to inspecting the existing installation first. We need to see how it was put in before we take responsibility for how it runs.
What does maintenance cost?
It depends on the unit and the interval. We quote maintenance plans at handover and you are never obligated to buy one from us — but you do need the work done by someone, and documented, to keep coverage intact.
Get a real number for your property
Equipment pricing is published on every model. The installation number takes about 45 minutes at your address, and it costs nothing.