CAT D6 vs D7 vs D8 in Duqm — Bulldozer Comparison 2025

Duqm, Oman’s industrial frontier, is home to the Special Economic Zone (SEZAD), the Duqm Refinery, and one of the region’s most ambitious deepwater ports. Contractors here face a key question: Which CAT bulldozer is the best fit for 2025 projects — the D6, D7, or D8?

This guide compares the three most popular models in horsepower, blade capacity, operating costs, transport challenges, and ideal applications, so you can invest with confidence.

Why CAT Bulldozers Dominate in Duqm

Proven in GCC conditions: Handles desert heat, sand, and coastal humidity.
Strong resale market: CAT dozers are in demand across Oman & GCC.
Operator familiarity: Easier onboarding for Omani and expat operators.
Technology edge: Cat® Grade Control & Assist improve efficiency.

👉 CAT bulldozers are trusted across Duqm Refinery, SEZAD freezone industries, port expansions, and housing projects.

CAT D6 vs D7 vs D8 — Key Specifications

CAT D6 — The Flexible Contractor’s Choice

Horsepower: ~215 hp
Operating Weight: ~23 tons
Blade Capacity: 5–6.5 m³
Best For: Housing, utilities, small-scale SEZAD projects.
Transport in Duqm: Simple, no major permits required.

CAT D7 — The Balanced Performer

Horsepower: ~265 hp
Operating Weight: ~28 tons
Blade Capacity: 6–7.5 m³
Best For: Oil & gas foundations, SEZAD industries, road expansions.
Transport in Duqm: Requires multi-axle trailers & permits.

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Meta Description: Compare CAT D6, D7 & D8 bulldozers in Duqm. Specs, horsepower, costs & transport insights for oil & gas, SEZAD & port projects in 2025.

CAT D8 — The Heavy-Duty Powerhouse

Horsepower: ~335 hp
Operating Weight: ~39 tons
Blade Capacity: 8–10 m³
Best For: Port reclamation, refinery sites, quarrying, and landfills.
Transport in Duqm: Needs escort vehicles & special permits.

Applications of CAT D6, D7 & D8 in Duqm

Oil & Gas Projects (Duqm Refinery)

Best Choice: CAT D7 → foundation prep, compact fill, utilities.

SEZAD Industrial Freezone

Best Choice: CAT D8 → grading large industrial zones.

Duqm Port Expansion

Best Choice: CAT D8 → reclaiming land, heavy-duty pushing.

Housing & Township Projects CAT D6 vs D7 vs D8 in Duqm

Best Choice: CAT D6 → cost-effective and flexible for residential works.

Price Comparison of CAT D6 vs D7 vs D8 in Duqm (2025)

CAT D6: OMR 18,000 – 26,000
CAT D7: OMR 27,000 – 40,000
CAT D8: OMR 38,000 – 55,000

💡 Contractors save 30–40% by choosing certified-used bulldozers.

Operating & Ownership Costs CAT D6 vs D7 vs D8 in Duqm

Fuel Consumption:
- CAT D6 → 20–25 liters/hr
- CAT D7 → 25–30 liters/hr
- CAT D8 → 30–35 liters/hr
Undercarriage (UC):
- 40–50% of ownership cost.
- D8 UC is the costliest to replace.
Maintenance Needs:
- Frequent servicing due to desert dust & coastal salt air.
- Cooling inspections required for refinery & port jobs.

Transport Challenges in Duqm

CAT D6: Easy transport across SEZAD & housing projects.
CAT D7: Needs permits, multi-axle trailers for highway movement.
CAT D8: Requires escorts and heavy transport lowbeds.

👉 Transport adds 5–12% to bulldozer project costs in Duqm.

CAT Technology in 2025

Cat® Grade with 3D: Cuts rework and boosts accuracy.
Assist Features: Automates blade lift, tilt, and slope adjustments.
Fuel Efficiency Packages: Save up to 15% in harsh conditions.

Which Dozer Should You Choose in Duqm?

Choose CAT D6 → Housing, utilities, smaller SEZAD projects.
Choose CAT D7 → Oil & gas, road construction, SEZAD industries.
Choose CAT D8 → Port expansion, quarrying, heavy-duty refinery sites.

👉 Browse listings here: Bulldozer for Sale Duqm.

Expert Buying Tips for Duqm Contractors

Inspect UC wear % before purchase.
Request oil analysis for transmission & engine.
Budget 10–15% of purchase price for UC replacements.
Factor in transport permits for D7 & D8.
Compare lifecycle ROI of new vs certified-used bulldozers.

Internal Resources CAT D6 vs D7 vs D8 in Duqm

External Resources CAT D6 vs D7 vs D8 in Duqm

CAT Bulldozer Specs
Times of Oman — Duqm Projects
ASTM International — Earthmoving Standards

FAQs CAT D6 vs D7 vs D8 in Duqm

Q: Which CAT bulldozer is most popular in Duqm?
A: CAT D7 for refinery & industrial projects, CAT D8 for port & reclamation.

Q: Do bulldozers in Duqm need permits for transport?
A: Yes, D7 and D8 require permits, and D8 may also need escort vehicles.

Q: Is certified-used a good option in Duqm?
A: Yes, many contractors save 30–40% with certified-used CAT bulldozers.

Q: Can bulldozers be financed in Duqm?
A: Yes, banks and leasing firms in Oman offer finance packages for contractors.

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