Overview
The CAT 320 Next Generation and CAT 321 sit in the same medium crawler class, separated by less than a tonne of operating weight. Both are positioned in the premium segment, which means the choice between them turns less on brand reputation and more on configuration fit, parts logistics, and operator preference.
Caterpillar 320 NG buyers across our Caribbean and African service area typically choose it for 22-tonne next-gen cat with all factory tech standard. Caterpillar 321 buyers, by contrast, tend to prioritise 22-tonne next-gen cat with smart/power/eco selectable modes. The two machines have meaningful overlap on foundation work, quarry preparation, so a buyer with that application profile genuinely has a choice to make — and it's worth understanding the trade-offs in depth before committing.
Brand positioning
Caterpillar positioning
Caterpillar is the global benchmark — strongest parts logistics across our Caribbean and African service area, highest resale value retention, and the safest single-machine purchase decision for buyers prioritising uptime over upfront price.
Caterpillar positioning
Caterpillar is the global benchmark — strongest parts logistics across our Caribbean and African service area, highest resale value retention, and the safest single-machine purchase decision for buyers prioritising uptime over upfront price.
5-year total cost of ownership
Across a 5-year ownership cycle at typical African construction-sector use (2,000 operating hours/year, $1.20/L diesel, financed 50%), the CAT 320 Next Generation typically delivers a total 5-year operating cost of $580-650k including acquisition, fuel, parts, service, financing interest, and resale recovery. The CAT 321 comes in at $580-650k.
Acquisition (financed): Caterpillar 320 NG ~$160-220k, Caterpillar 321 ~$160-220k. Comparable upfront.
Fuel over 5 years: Both machines burn 20-30 L/h on standard duty. Across 10,000 lifetime operating hours that's $240-360k of diesel. Real-world consumption is close — within 5% variance.
Parts + service: Premium-tier parts run ~$14-18k/year for the CAT 320 Next Generation. Premium-tier parts run ~$14-18k/year for the CAT 321.
Resale at year 5: Caterpillar typically holds 45-55% of acquisition price after 5 years. Caterpillar holds 45-55%. The resale gap is often the largest single TCO swing factor — premium-tier machines effectively rebate 15-25% more capital at year five.
Parts logistics & service support
Caterpillar parts logistics for CAT 320 Next Generation
Tractafric (Ghana, Cameroon), Mantrac (Tanzania, Kenya, Egypt, Nigeria), Bia (West Africa), Empresa Cubana de Maquinaria across the Caribbean — easily the strongest dealer network of any brand. Fast-moving wearing parts typically available within 24-72 hours; major components 1-3 weeks.
Caterpillar parts logistics for CAT 321
Tractafric (Ghana, Cameroon), Mantrac (Tanzania, Kenya, Egypt, Nigeria), Bia (West Africa), Empresa Cubana de Maquinaria across the Caribbean — easily the strongest dealer network of any brand. Fast-moving wearing parts typically available within 24-72 hours; major components 1-3 weeks.
What this means in practice
Mining and infrastructure operations across Caribbean and African markets typically lose $2-5k per hour of unscheduled downtime — meaning a single 24-hour parts delay can cost more than the parts themselves. Choose the brand with the strongest parts logistics in your destination country and operating sector.
Configurations available
CAT 320 Next Generation configurations available
- 320 NG (standard) — All standard technology — GRADE, Grade Assist, Payload, E-Fence
CAT 321 configurations available
- 321 (standard) — Standard 2.25m stick — max lifting and breakout force
- 321 R2.9 — 9'6" reach stick — extended reach for sand excavation and loading
- 321 2.5m stick — Extended reach standard configuration
Configuration choice (undercarriage track pattern, bucket capacity, hydraulic-circuit options, cab certification) drives 30%+ of total cost of ownership over a 5-year cycle. Whichever model you choose, specify configuration to the buyer's actual operating profile before order — retrofitting later costs 30-50% more.