Complete Compatibility Guide with Live Engine Listings
The Cat C3.3B engine is a 3.3-litre, 4-cylinder Tier 4 Final industrial diesel used across Caterpillar's compact equipment range — including skid steer loaders, compact track loaders, multi terrain loaders, mini excavators, small wheel loaders and asphalt pavers. It is also referred to as the Cat C3.3, C3.3B DIT (direct injection turbocharged) and C3.3B CR (common rail injection) in Caterpillar service literature — all refer to the same engine family.
We supply brand new surplus Cat C3.3B engines — genuine OEM Caterpillar engines that have never accumulated operating hours — at pricing below Caterpillar dealer cost. We stock both the direct injection (DIT) and common rail (CR) variants and ship nationwide from Houston, TX.
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The Cat C3.3B engine is the standard OEM replacement engine for the Cat 259D, 259D3, 279D, 279D3, 289D and 289D3 compact track loaders. We supply brand new surplus Cat C3.3B engines for all these machines from stock in Houston — genuine Caterpillar OEM engines below dealer price.
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Cat C3.3B Engine Specifications
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Engine Family
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Cat C3.3 / C3.3B / C3.3B DIT / C3.3B CR
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Displacement
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3.3 litres (201 cubic inches)
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Configuration
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4-cylinder inline, liquid-cooled turbocharged diesel
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Gross Power Range
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70 – 100 HP depending on variant and application
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Net Power — DIT
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Approximately 72.9 HP (typical compact equipment application)
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Net Power — CR
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Approximately 70.3 – 74 HP depending on application
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Emissions Standard
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Tier 4 Final / Stage IV (later variants)
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Fuel System Variants
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DIT — Direct injection turbo | CR — Common rail high-pressure electronic injection
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Bore × Stroke
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Approximately 94 mm × 120 mm
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Also Known As
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Cat C3.3 / C3.3B / C3.3B DIT / C3.3B CR / C3.3B Turbo / C3.3B-CR
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OEM Manufacturer
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Caterpillar (Mitsubishi-architecture industrial diesel platform)
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Typical Industries
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Construction, landscaping, road building, utilities, rental fleets
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Cat C3.3B DIT vs C3.3B CR — What Is the Difference?
The C3.3B exists in two fuel delivery variants. Confirm your machine's serial number and arrangement number before ordering — call +1 (855) 384-6071 for fitment confirmation.
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C3.3B DIT — Direct Injection Turbo
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C3.3B CR — Common Rail Injection
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Mechanical direct injection + turbocharger
Net power: ~72.9 HP
Machines: 236D, 242D, 246D, 257D, 259D, 262D, 277D, 279D, 287D, 289D
Tier 4 / Tier 4i configurations
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High-pressure common rail electronic fuel delivery
Net power: ~70.3 – 74 HP
Machines: 236D3, 242D3, 246D3, 257D3, 259D3, 262D3, 279D3, 289D3, 310 Tier 4
Tier 4 Final / Stage IV — D3-series machines
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Compatible Machines — Complete List (43 machines, 29 with direct listings)
Every machine below has a confirmed Cat C3.3B engine listing on our site. Click "View engine listing" to see available stock, specifications and pricing for that specific machine.
View all Cat C3.3B engines in stock: Cat C3.3 Engine Hub →
Why New Surplus Over Rebuilt?
Our new surplus Cat C3.3B engines are genuine OEM Caterpillar units that have never accumulated operating hours:
• Zero previous wear on pistons, rings, bearings, crankshaft or injection system
• Full OEM specification — no variability from one rebuild to the next
• Priced below Caterpillar dealer cost — surplus OEM inventory sourced direct
• Ships from Houston, TX — typically 1–3 business days nationwide
• Even Caterpillar dealers purchase from us when their own stock is depleted
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We are an engine solutions company, not a rebuilder. We sell surplus new OEM engines — the same engines Caterpillar builds for new equipment — at wholesale pricing. No core charge required.
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Fitment and Installation Notes
• Confirm serial number prefix and arrangement number before ordering
• Verify fuel system variant — DIT vs CR — matches your machine's original engine
• Check turbocharger, intake/exhaust manifold configuration
• Verify flywheel housing bolt pattern and dimensions
• CR variants require ECU and wiring harness compatibility check
• Confirm cooling package, fan drive and accessory drive layout