Generac Introduces SD1250 & SD1500 Diesel Generators: Smarter Solutions for Mission-Critical Power Applications

Generac (NYSE: GNRC) launched the SD1250 and SD1500 diesel generators, powered by a Perkins 5012 V‑12 46L engine, designed for mission‑critical sites including data centers and healthcare.

Rhea-AI Summary

Generac (NYSE: GNRC) launched the SD1250 and SD1500 diesel generators, powered by a Perkins 5012 V‑12 46L engine, designed for mission‑critical sites including data centers and healthcare.

Key features include improved fuel efficiency, reduced emissions, Marathon alternators, Deep Sea G8601 control, 50°C ambient cooling, up to 4160V, redundant starting systems, and standard remote monitoring. Units begin shipping in Q2 2026 with open set lead times of 30–36 weeks.

Positive

• Perkins 5012 46L engine for high durability and power
• Improved fuel efficiency and reduced emissions (platform design focus)
• 50°C high ambient cooling for extreme‑condition operation
• Generac Link Manager remote monitoring standard
• Flexible voltages up to 4160V for diverse industrial use
• Shipping Q2 2026 with established 30–36 week lead times

Negative

• Open generator set lead times of 30–36 weeks may limit near‑term deliveries

Argus Mar 18 session

-2.39% close to close Open Argus

Details

News Market Reaction – GNRC

On Mar 18, the day this news came out, GNRC closed 2.39% below the previous close.

Data tracked by StockTitan Argus for the Mar 18 session.

Key Figures

Engine displacement: 46-liter Engine model: Perkins 5012 Operating temperature: 50°C (122°F) +5 more

Engine displacement

46-liter

Perkins 5012 engine in SD1250 & SD1500 generators

Engine model

Perkins 5012

Core engine platform for new diesel generators

Operating temperature

50°C (122°F)

High Ambient Cooling Package rated operating condition

Voltage options

Up to 4160V

Flexible low and medium voltage configurations

Lead times

30–36 weeks

Competitive open generator set lead times

Ship date

Q2 2026

SD1250 & SD1500 generators begin shipping

Current price

$205.18

Pre-news trading level on latest close

52-week range

$99.50 – $241.091

GNRC 52-week low and high before this announcement

Historical Context

5 past events · Latest: Mar 11

5 events

1. Mar 11

   Investor Day webcast

   24h Move

   +0.9%

   Announcement of 2026 Investor Day webcast outlining strategy and growth priorities.

2. Mar 10

   Design awards

   24h Move

   +1.7%

   GOOD DESIGN Awards for multiple products highlighting innovation and sustainability focus.

3. Mar 09

   Management recognition

   24h Move

   +1.5%

   CEO joining NAM Board, reinforcing leadership profile in manufacturing policy circles.

4. Mar 05

   Data center solutions

   24h Move

   -0.9%

   Partnership with EPC Power to deploy integrated energy solutions for data centers.

5. Feb 20

   Award finalist

   24h Move

   +0.8%

   Finalist for Wisconsin Manufacturer of the Year highlighting scale and recent milestones.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

common rail fuel system, alternators, redundant starting system, remote monitoring

4 terms

common rail fuel system technical

"A modern common rail fuel system reducing fuel consumption and emissions."

A common rail fuel system is a high-pressure fuel delivery setup used in diesel and some gasoline engines where a single shared reservoir (the “rail”) supplies fuel to each injector on demand, allowing precise control of injection timing and amount. Think of it like a pressurized water tank feeding multiple sprinklers that can be turned on and metered individually; for investors, it matters because it improves fuel efficiency, lowers emissions, affects compliance with regulations, and can influence manufacturing costs, reliability, and aftermarket service revenues.

alternators technical

"Marathon MagnaMax alternators with low reactance winding minimize harmonics"

An alternator is a machine that converts mechanical motion into alternating electrical current, commonly found in vehicles, generators and power systems; think of it as a pump that turns movement into usable electricity. Investors care about alternators because their cost, reliability and demand influence manufacturing expenses, product competitiveness and maintenance spending across automotive, industrial and energy companies, which can affect sales, margins and capital needs.

redundant starting system technical

"Redundant starting system with fully isolated backup starters, batteries and chargers"

A redundant starting system is a backup arrangement of components or mechanisms designed to ensure a device, machine or equipment can be started or restarted if the primary starter fails. Like a spare key for a car, it reduces the risk of downtime, costly repairs, safety incidents or regulatory intervention, improving operational reliability and helping protect revenue, reputation and valuation for investors.

remote monitoring technical

"Generac Link Manager hardware as standard equipment, enabling real‑time remote monitoring"

Remote monitoring is the continuous collection and transmission of data from people, devices, or equipment using sensors and secure networks, so clinicians or operators can observe status and trends without being physically present. Investors care because it can drive recurring service revenue and lower costs by preventing problems or hospital visits, but its value depends on clinical effectiveness, reimbursement rules, data-security risks and regulatory approval—like a smart babysitter whose reliability and legal constraints determine its market worth.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Generac's new 46-liter diesel generators feature a powerful Perkins 5012 engine optimized for improved fuel efficiency, reduced emissions and unmatched reliability for mission-critical environments.

WAUKESHA, Wis., March 18, 2026 /PRNewswire/ -- Generac Holdings Inc., (NYSE: GNRC), a leading global designer, manufacturer and provider of energy technology solutions and other power products, today announced the launch of its new SD1250 & SD1500 diesel generators, designed to deliver reliable, efficient power for higher power applications. The new generators, powered by a robust Perkins 5012 46-liter engine, fill a critical gap in the industrial market, offering improved fuel efficiency, reduced emissions and a smaller footprint.

"With the new 46-liter based product, we're delivering a generator designed for ultimate productivity, dependability and performance in the most demanding environments," said Erik Wilde, Generac President, Domestic C&I. "The Perkins 5012 engine is the cornerstone of this platform, offering durability, exceptional fuel efficiency and reduced emissions. By combining Perkins' proven technology with Generac's expertise in industrial energy solutions, we've created a product that gives customers the confidence they need, especially in the moments that matter most, when the power is out and conditions are at their worst."

Built for mission-critical applications such as data centers, healthcare facilities, water utilities and heavy commercial and industrial segments, the new generators combine cutting-edge technology, such as the latest generator packaging techniques, with proven durability.

The new generators feature:

• A robust Perkins 5012 V-12, 46L engine delivering maximum durability and power output.
• A modern common rail fuel system reducing fuel consumption and emissions.
• Marathon MagnaMax alternators with low reactance winding minimize harmonics for stable power delivery.
• The Deep Sea G8601 advanced controller offering onboard paralleling, high configurability and intuitive interface for industrial control performance.
• High Ambient Cooling Package allowing operation at 50°C (122°F) for reliable performance in extreme conditions.
• Flexible Voltage Options offering low and medium voltages up to 4160V for diverse applications.
• Redundant starting system with fully isolated backup starters, batteries and chargers to eliminate single points of failure.
• Generac Link Manager hardware as standard equipment, enabling real‑time remote monitoring, control, and proactive notifications
• Factory designed and built enclosures and tanks that reduce lead time and ensure full systems validation and compliance.

As part of the broader Generac Industrial Energy portfolio, the new SD1250 and SD1500 generators reinforce the company's mission to lead the evolution toward more resilient, efficient and sustainable energy solutions. These high-capacity diesel generators integrate seamlessly into Generac's total energy ecosystem, spanning generation, storage, management and distribution, and empowering businesses with reliable, future-ready energy infrastructure to meet today's instability and tomorrow's growing demands.

Generac offers leading product availability with competitive open generator set lead times of 30–36 weeks and a resilient supply chain to meet increased demand. The new SD1250 & SD1500 generators will begin shipping to customers in the second quarter of 2026.

For more information about Generac's Commercial and Industrial product line, visit https://www.generac.com/industrial-products/stationary-generators/

Media Contact: CorporateCommunications@generac.com

View original content to download multimedia:https://www.prnewswire.com/news-releases/generac-introduces-sd1250--sd1500-diesel-generators-smarter-solutions-for-mission-critical-power-applications-302716458.html

SOURCE Generac Power Systems, Inc.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

When will Generac (GNRC) begin shipping the SD1250 and SD1500 generators?

They begin shipping in Q2 2026. According to Generac, commercial shipments start in the second quarter of 2026, with production availability scheduled to meet customer orders.

What engine powers Generac's SD1250 and SD1500 diesel generators (GNRC)?

Both models use a Perkins 5012 V‑12 46L engine. According to Generac, this engine emphasizes durability, fuel efficiency and reduced emissions for mission‑critical applications.

What lead times should buyers expect for GNRC SD1250/SD1500 orders?

Expect open set lead times of 30–36 weeks. According to Generac, competitive lead times reflect current supply chain planning and product availability.

Can the SD1250 and SD1500 operate in high ambient temperatures for GNRC customers?

Yes. They support operation at up to 50°C (122°F). According to Generac, the High Ambient Cooling Package ensures reliable performance in extreme heat conditions.

Do Generac SD1250/SD1500 generators include remote monitoring and industrial controls?

Yes. They include a Deep Sea G8601 controller and Generac Link Manager remote monitoring. According to Generac, onboard paralleling and real‑time remote control are standard features.