Industrial diesel generators cost between $8,000 for a small used portable unit and over $400,000 for a large 2,500kW Caterpillar 3516C in excellent condition. The most commonly purchased range — 250kW to 1,000kW diesel generators from major brands — sells for $35,000 to $165,000 used and $85,000 to $325,000 new. This pricing guide covers what drives those numbers, how to evaluate price versus value, and what Power Generation Enterprises currently has in inventory at each price point.
Generator pricing is not arbitrary — every price reflects a predictable set of variables. Understanding those variables lets buyers negotiate from knowledge rather than guesswork.
What Drives Industrial Generator Pricing
Brand: Caterpillar and Cummins command a 15–25% premium over equivalent MTU, Kohler, or Detroit Diesel units in the used market because of parts availability, dealer network depth, and resale demand. A 1,000kW Caterpillar 3516 sells for more than a 1,000kW Detroit/MTU Series 2000 of similar hours and condition — not because the CAT is technically superior, but because the resale market for CAT is deeper and more liquid.
Power output: Price scales non-linearly with kW output. The jump from 500kW to 1,000kW does not double the price — it typically increases it 60–80%. This is because larger engines require proportionally more complex manufacturing, testing, and logistics.
Emissions tier: Tier 4 Final generators command a 15–25% premium over equivalent Tier 2 units because they are newer, have lower hours on average, and face no operational restrictions in California AQMD districts. As Tier 2 operational restrictions tighten in regulated markets, the Tier 4 premium has widened from approximately 10% in 2020 to 15–25% today.
Hours: Generator hours matter differently than vehicle miles. A diesel generator with 15,000 hours of standby service — meaning it ran only during emergencies and monthly tests — is in fundamentally different condition than a 15,000-hour prime power unit that ran continuously. Always request the service history alongside the hour meter reading.
Enclosure: Sound-attenuated enclosures add $15,000 to $75,000 in value depending on size and attenuation spec. A bare open-set 500kW generator at $75,000 may be equivalent in value to an enclosed 500kW at $110,000 — the delta is simply the enclosure. Weather-resistant enclosures for outdoor installation, and level 3 sound attenuation enclosures for noise-sensitive sites, command the highest premiums.
Generator Pricing by Power Class (Used Market, 2026)
Caterpillar ·
Cummins ·
MTU ·
Kohler
— Browse all generators at Power Generation Enterprises
The pricing ranges below reflect inspected, operational units in serviceable condition from reputable dealers. Pricing at auction or from non-specialist sources may be lower, but inspection and reconditioning costs frequently offset the apparent discount.
Caterpillar Generator Pricing
Caterpillar generators hold value better than any other brand in the industrial generator market. The parts network, dealer coverage, and resale liquidity are unmatched. Current pricing from Power Generation Enterprises inventory:
- Caterpillar 3408 (350–500kW): $35,000–$75,000 used | $95,000–$145,000 new
- Caterpillar 3512 (800–1,000kW): $65,000–$125,000 used | $185,000–$265,000 new
- Caterpillar 3516 / 3516B (1,200–1,825kW): $95,000–$195,000 used | $295,000–$425,000 new
- Caterpillar 3516C HD (2,500kW): $175,000–$325,000 used | $525,000+ new
Cummins Generator Pricing
Cummins generators are the second most liquid brand in the used industrial market. Strong dealer network, excellent parts availability, and widespread fleet familiarity make Cummins units the preferred choice for buyers who prioritize serviceability over prestige:
- Cummins N14 / KTA19 (300–500kW): $25,000–$65,000 used
- Cummins KTA50 / QSK45 (750–1,100kW): $55,000–$115,000 used
- Cummins QSK60 (1,500–2,000kW): $95,000–$185,000 used
- Cummins QSK78 (2,000–2,500kW): $175,000–$325,000 used
Kohler Generator Pricing
Kohler generators hold a strong position in the 100kW–750kW commercial standby market, typically priced 10–20% below equivalent Caterpillar units in the used market with comparable reliability in light commercial applications. Kohler’s large-format KD Series uses MTU engine technology — bringing German engineering to Kohler-branded units above 500kW.
- Kohler 100REOZJB (100kW): $18,000–$38,000 used | $45,000–$65,000 new
- Kohler 250REOZJB (250kW): $28,000–$58,000 used | $78,000–$105,000 new
- Kohler 500REOZJB (500kW): $52,000–$98,000 used | $140,000–$195,000 new
- Kohler KD1100 (1,000kW, MTU-powered): $88,000–$155,000 used | $295,000–$365,000 new
MTU Generator Pricing
MTU (Rolls-Royce Power Systems) generators command a 10–20% premium over Cummins for equivalent output, justified by 5–10% better fuel efficiency at high duty cycles. For facilities running generators 2,000+ hours annually, the MTU fuel savings compound into real dollar savings that offset the higher purchase price over a 5–7 year payback period.
- MTU Series 2000 (500–1,000kW): $55,000–$130,000 used
- MTU Series 2000 (1,000–2,000kW): $95,000–$220,000 used
- MTU Series 4000 (1,500–3,500kW): $145,000–$395,000 used
For a complete brand comparison of fuel efficiency, reliability, and 10-year total cost of ownership, see our MTU vs. Caterpillar vs. Cummins comparison guide.
New vs. Used Generator Pricing
New industrial generators carry a 40–65% premium over equivalent used units in serviceable condition. For a 1,000kW generator, that premium represents $100,000–$150,000 in additional capital cost. The justification for new equipment is warranty coverage, full documentation, and in regulated applications, certified emissions compliance from date of installation. For the majority of industrial buyers, a well-inspected used unit from a reputable dealer delivers equivalent operational reliability at substantially lower initial cost.
Power Generation Enterprises provides written inspection reports and 30-day operational guarantees on all inventory. Call +1 (818) 484-8550 for current inventory and pricing on specific configurations.
Total Cost of Ownership: Beyond the Purchase Price
Purchase price is typically 40–60% of total 10-year generator ownership cost. Fuel, maintenance, parts, and installation make up the remainder. For a 500kW diesel generator running 500 hours per year (prime power application), 10-year total cost of ownership breaks down approximately as: purchase price $75,000–$125,000; fuel (at $3.50/gallon, 35 gph at full load) $612,500; maintenance and parts $45,000–$75,000; installation and commissioning $15,000–$35,000. Total: $747,500–$847,500 over 10 years. Purchase price is the smallest component — selecting for fuel efficiency and maintenance cost has greater long-term impact than negotiating the lowest purchase price.
Related Guides
- Diesel Generators for Sale: Complete Buyer Guide 2026 — How to evaluate condition and negotiate on used generators across all price points
- Tier 4 Generator Requirements 2026 — How emissions tier affects pricing and operational restrictions in California
- MTU vs. Caterpillar vs. Cummins: 10-Year Total Cost Comparison — Brand-by-brand TCO analysis for the 1,000kW class including purchase, fuel, and maintenance










