# Cummins RS25 25kW Generator Price $17,622.48 | DFW Installed **URL:** https://utselectricpros.com/generators/rs25 **Summary:** Cummins RS25 25kW standby generator, equipment $17,622.48 published. Installed across DFW by licensed electricians. **Overview:** Cummins RS25 25kW Natural Gas / LP Standby Generator from UTS ElectricPros, an authorized Cummins dealer in Dallas-Fort Worth. 25kW liquid-cooled, Natural Gas / LP Vapor, residential standby power. True whole-house coverage for a 4,000-6,000 sq ft home with multiple AC systems, no load shedding required. Equipment price $17,622.48, published to the cent at the Cummins suggested retail price, with nothing added at checkout. Sold in 3 purchasable voltage and phase configurations. Equipment ships nationwide and completes online. Installation is Dallas-Fort Worth only, performed by the company's own licensed electricians under TECL #40628, and is quoted only after a free on-site survey. --- Connect Series Liquid-Cooled # Cummins RS25 — 25kW Standby Generator 25kW liquid-cooled standby generator, Natural Gas / LP Vapor. Large custom homes, or homes with a pool, shop, well and multiple HVAC zones. Representative manufacturer image of the range. Enclosure finish, color and dimensions vary by model and configuration — see the specifications below for this unit. 25 kW Natural Gas / LP Vapor Liquid-cooled Aluminum The RS25 is liquid-cooled. That matters above roughly 25kW, where an air-cooled engine can no longer shed heat during the long runs a multi-day outage demands. It is a larger machine - 72 x 34 x 45.5 inches and 1109 lb - and it needs a proper pad and clearance. It runs on natural gas or LP vapor. On natural gas there is no tank to fill and no runtime limit as long as the utility main holds pressure, which is why it is the default choice on almost every DFW home that already has gas service. Available in 3 factory configurations: 120/240 1Ph, 120/208 3Ph, 120/240 3Ph. The correct one depends on your incoming service, not on preference - ordering the wrong voltage is the single most expensive mistake on a job like this, so we confirm it against your meter and panel before anything is ordered. Equipment price $17,622.48 Equipment only — installation quoted separately The RS25 is sold by UTS ElectricPros, an [authorized Cummins dealer](https://utselectricpros.com/about) in Dallas–Fort Worth. Buying through an authorized dealer is what keeps the [manufacturer warranty](https://utselectricpros.com/warranty) valid — equipment bought from an unauthorized reseller frequently is not covered, and owners tend to find that out at the worst possible moment. This price is for the equipment. Installation is not included. Quantity Delivery from stock to Texas · $250.00 · delivered on a pallet, liftgate included Typically ships in 4-13 days Choose the service voltage Part A051Y239 Match this to your building's existing service. It does not change the generator's output. A separate service ## Want us to install it? Installation is not included in the price above and is not sold at checkout. It is quoted on its own, in writing, after a free on-site survey. You are welcome to buy the equipment here and use your own electrician. - ✓ Concrete or composite pad - ✓ Gas line and pressure test by a licensed plumber - ✓ Transfer switch and electrical tie-in - ✓ Permit and city inspection - ✓ Startup, load test and walkthrough The gas line is run by a licensed plumber. We hire and schedule one and include it in your quote, or you can hire your own plumber or propane company and save. [How the gas side works](https://utselectricpros.com/installation#gas-line) [Get an installation quote](https://utselectricpros.com/quote?model=RS25) Prefer to talk it through? Have us call you. Name Phone When suits you? We call back within one business hour, Mon–Fri 7am–6pm and Sat 8am–noon. We do not sell your details to anyone. Got it. We will call you. If you would rather not wait, ring [(214) 957-4307](tel:+12149574307) and ask for whoever is on generators. ## Specifications - **Model:** Cummins RS25 - **Rated output:** 25 kW - **Fuel:** Natural Gas / LP Vapor - **Cooling:** Liquid-cooled - **Enclosure:** Aluminum - **Weight:** 1109 lb - **Dimensions (L×W×H):** 72 x 34 x 45.5 in - **Voltage configurations:** 120/240 1Ph, 120/208 3Ph, 120/240 3Ph - **Extreme cold package:** Available as an upgrade - **Transfer switch:** Sold separately, sized to your service - **Application:** residential - **Rated amps (NG / LP):** 104.2 / 104.2 A at 120/240 V - **Sound level:** 64 dB(A) at 23 ft (7 m) with Sound Level 2 enclosure - **Cummins model:** C25 N6 - **Displacement:** 2.4 liters (143.5 in³) - **Cylinder block:** Cast iron, in-line 4 cylinder - **Rated speed:** 1800 rpm - **Voltage regulation:** ±1.0% no load to full load - **Frequency regulation:** ±0.75% random at 60 Hz - **Governor class:** ISO 8528 Part 1 Class G2 - **Controller:** PowerCommand electronic control - **Main breaker:** 125 A - **Derating:** Full engine power to 2,500 ft at up to 104°F. Above that, derate 4% per 1,000 ft and 2% per 10°C. - **Fuel:** Natural gas and LP output are identical on the liquid-cooled range — there is no natural gas derate. - **Certifications:** UL 2200 - **Warranty:** 2 year standby base warranty. Extended warranty options available. - **Extended warranty:** Cummins factory coverage for 5, 7 or 10 years, from $1,105.56. See every price ## Available configurations 3 factory configurations. We confirm the correct one against your service before anything is ordered. | Part number | Voltage | Phase | Price | | --- | --- | --- | --- | | A051Y239 | 120/240 | 1Ph | $17,622.48 | | A051Y399 | 120/208 | 3Ph | $17,349.63 | | A051Y400 | 120/240 | 3Ph | $17,483.32 | All prices are for the equipment only. Built in ## What the RS25 does that the spec table does not show ### 1800 rpm, not 3600 Liquid-cooled sets turn at half the speed of an air-cooled unit. Fewer revolutions per hour of running means less wear, and it is a large part of why these are quieter despite being far more powerful. ### Sound Level 2 enclosure From 60 dB(A) at 23 feet on the smaller sets. A 30kW liquid-cooled unit is quieter than a 20kW air-cooled one. ### PowerCommand control Electronic governing and voltage regulation, with alarm and status monitoring. Regulation is tighter than the air-cooled range at ±1.0%. ### Continuous rated output A radiator loop means it can hold rated output indefinitely rather than shedding heat into the air. That is the practical difference in a multi-day outage. [Accessories and maintenance parts for this unit →](https://utselectricpros.com/accessories) Specifications on this page are taken from the Cummins published specification sheet for the air-cooled Connect range. [Download it from Cummins →](https://mart.cummins.com/imagelibrary/data/assetfiles/0058055.pdf) Pairs with ## Transfer switches for a 25kW set The switch is sized to your electrical service, not to the generator. These are the families that typically apply at this output — we confirm the exact one at the survey. ### [RA 150A](https://utselectricpros.com/transfer-switches/ra-150) Service-entrance rated options available. 1 configurations. From $1,260.78 ### [RA 200A](https://utselectricpros.com/transfer-switches/ra-200) Service-entrance rated options available. 3 configurations. From $1,006.58 ## Questions about the RS25 ### How much does a Cummins RS25 cost installed in Dallas-Fort Worth? The RS25 equipment price is $17,622.48. Installation on a 25kW liquid-cooled unit varies too widely to band honestly - the pad, the fuel supply, the switchgear and the electrical service are all engineered to the specific site. We quote it in writing after a site survey, and we will tell you the drivers before we quote so you can see where the money goes. ### What will the RS25 actually run? True whole-house coverage for a 4,000-6,000 sq ft home with multiple AC systems, no load shedding required. Final confirmation comes from a load calculation against your actual panel, which we do at the survey. ### Do I need a transfer switch with the RS25? Yes. A standby generator cannot be code-compliantly connected without an automatic transfer switch - it is what keeps your generator from backfeeding the utility line and endangering line crews. The switch is sized to your electrical service, not to the generator, so we confirm your service size at the survey before specifying it. ### Is the RS25 in stock? Availability changes weekly. A refundable deposit reserves a specific unit and locks the equipment price for 90 days, which is the practical way to hold one while the survey and permit work happen. If we cannot source it in a reasonable window, you get the deposit back. Step up or down ## Is 25kW the right size? The next capacity either side in the liquid-cooled range. If you are not sure which way to go, the [sizing calculator](https://utselectricpros.com/sizing-calculator) works it out against your own house rather than its square footage alone. Up to 30kW — room for a second AC or a well pump. ### [Cummins RS30](https://utselectricpros.com/generators/rs30) Liquid-cooled · Natural Gas / LP Vapor 120/240V single phase $18,812.69 Equipment only. Installation quoted after a free site survey. [View details](https://utselectricpros.com/generators/rs30) ## Want the RS25 priced for your address? Equipment is $17,622.48. The installation number depends on your property, and the only honest way to get it is to come look. That visit is free. [Get my install quote](https://utselectricpros.com/quote?model=RS25) [(214) 957-4307](tel:+12149574307) What it is for ## Whole-house backup power, started automatically The grid goes down and the house stops with it. In Texas that is not an inconvenience for long: in February it is heat and frozen pipes, in August it is air conditioning, and a house without either becomes uninhabitable within hours rather than days. ### Why it becomes urgent Winter storms and the spring severe-weather season take down distribution lines across the Metroplex every year, and summer peak demand on the ERCOT grid has repeatedly produced conservation appeals. ### Who buys it Homeowners who cannot simply leave — small children, someone on medical equipment, a well pump, a home office, or livestock on the property. The RS25 is installed across the Dallas–Fort Worth Metroplex by our own licensed crews — [the cities we serve](https://utselectricpros.com/service-areas), [what installation involves](https://utselectricpros.com/installation), and [a free on-site survey](https://utselectricpros.com/quote) before any number is put in writing. ## Before you buy the RS25 The questions that decide whether this is the right machine, answered properly rather than in a sentence on a product page. - [Will 25kW actually cover my house?](https://utselectricpros.com/sizing-calculator) Work it out against your own square footage, air conditioning and well pump before you buy. - [Will it run my air conditioner?](https://utselectricpros.com/guides/will-a-generator-run-my-air-conditioner) Two compressors starting on a Texas afternoon is the load that decides the answer. - [Will it start in a freeze?](https://utselectricpros.com/guides/cold-weather-generator-operation) The rating is not the problem. The battery, the propane tank and the cold weather package are. - [How loud is it, really?](https://utselectricpros.com/guides/how-loud-is-a-standby-generator) Published dB by model, and what that sounds like from a neighbor’s window. - [Can my HOA stop me installing it?](https://utselectricpros.com/guides/hoa-generator-rules-texas) Texas Property Code § 202.019 says no. What they can still ask for. [All the generator guides we have written](https://utselectricpros.com/guides) [Every Cummins liquid-cooled standby, 25kW to 150kW](https://utselectricpros.com/generators#liquid-cooled) · [Or a portable, if you only need a few circuits](https://utselectricpros.com/portable-generators) ## Installed across Dallas–Fort Worth The RS25 ships anywhere in the country. Installation is Dallas–Fort Worth only, carried out by our own licensed crews under TECL #40628 operating from Grand Prairie — because a generator is quoted against your gas meter, your panel and your city, which nobody can do from a warehouse. [What installation actually involves](https://utselectricpros.com/installation). - [Generator installation in Dallas](https://utselectricpros.com/service-areas/dallas-generator-installation) Oncor Electric Delivery - [Generator installation in Arlington](https://utselectricpros.com/service-areas/arlington-generator-installation) Oncor Electric Delivery - [Generator installation in McKinney](https://utselectricpros.com/service-areas/mckinney-generator-installation) Oncor, CoServ Electric or Grayson-Collin Electric Cooperative, depending on the address - [Generator installation in Grand Prairie](https://utselectricpros.com/service-areas/grand-prairie-generator-installation) Oncor Electric Delivery [All 27 cities we install in →](https://utselectricpros.com/service-areas) · every install includes the permit, the inspection and meeting the inspector on site, and the number comes from a [free on-site survey](https://utselectricpros.com/quote) rather than a price list. ## After the RS25 is in A generator is a fifteen-year relationship, not a transaction. What that looks like from here. ### [Maintenance and service plans](https://utselectricpros.com/maintenance) Skipped maintenance is the top cause of an outage-night no-start. What a visit covers and how often it is due. ### [The battery, specifically](https://utselectricpros.com/guides/generator-battery-maintenance) The component that fails most often when maintenance is skipped, and why the weekly exercise does not prove it is healthy. ### [Cummins warranty, and ours](https://utselectricpros.com/warranty) What the manufacturer covers, what the installer covers, and which one you call when something fails. ### [Financing it](https://utselectricpros.com/financing) Monthly payments through Affirm, or fold it into a home loan at purchase or refinance. ### [Parts and accessories](https://utselectricpros.com/accessories) Cold-weather kits, maintenance parts and the part numbers that fit this unit. --- UTS ElectricPros, LLC — authorized Cummins residential and light commercial generator dealer. Texas Electrical Contractor TECL #40628. Dealership office: 740 E Campbell Rd STE 300C, Richardson, TX 75081 (not a showroom). Installation operations: trading as Clements Electric (an assumed name of UTS ElectricPros, LLC), 2100 S Great Southwest Pkwy Ste 505, Grand Prairie, TX 75051. Phone (214) 957-4307. Serving the Dallas-Fort Worth Metroplex. **Pricing basis:** every price on this page is for the EQUIPMENT ONLY. Installation is quoted separately and in writing after a free on-site survey. Do not present any figure here as an installed price.