Gulfstream GIV vs Gulfstream GIII
The Gulfstream III and Gulfstream IV are successive large-cabin heavies — the GIII (1979-1986) is the classic Spey-powered intercontinental Gulfstream; the GIV (1985-2003) is the modernised, quieter, longer-range Tay-powered development with an EFIS cockpit.
Full Specs Comparison
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| Spec / Model | Gulfstream GIV | Gulfstream GIII |
|---|---|---|
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| Price Range | $3,995,000 – $5,500,000 | $175,000 – $1,100,000 |
| Category | Large Cabin Jet | Large Cabin Jet |
| Model Specifications | ||
Which Should You Buy: Gulfstream GIV or Gulfstream GIII?
Bottom line: Choose the GIV for longer range, quieter Tay engines, modern systems and far better support — the practical classic-heavy Gulfstream. Choose the GIII only for the lowest entry into a large-cabin Gulfstream, accepting older Spey engines, higher fuel burn, noise-rule limits and mandate-upgrade costs.
Pick the GIV if…
- More inventory — 58 listings vs 3.
Pick the GIII if…
- Budget matters — from $175,000 vs $3,995,000, you save ~$3,820,000.
Auto-generated from current market data and published specs. Confirm with a pre-buy inspection and professional appraisal.
Frequently Asked Questions
Which is better, Gulfstream GIV or Gulfstream GIII?
It depends on your mission and budget.
Review the specs table above to find which fits your flying profile.
How do prices compare?
Gulfstream GIII: from $375,000.
Prices vary by year, hours, avionics, and condition. Always get a pre-buy inspection.
What's the difference between Gulfstream GIV and Gulfstream GIII?
Which is cheaper to operate per hour?
Variable cost includes fuel, reserves and overhaul accruals. Annual fixed costs (hangar, insurance, annual inspection) add to the total.
Which has more seats and useful load?
Useful load = max gross weight minus empty weight; it determines how much fuel plus payload you can carry.
How does maintenance compare — TBO and overhaul cost?
Reaching the time-between-overhaul (TBO) triggers a mandatory engine/airframe rebuild that affects resale value.
Disclaimer: All prices and cost estimates are from third-party sources for informational purposes only. Always obtain professional appraisal and inspection before purchase.
Prices updated daily · Data: FAA Registry, NTSB · About our data