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D1105
Kubota

The Kubota D1105 is a renowned 1.1-liter, three-cylinder diesel engine, celebrated globally for its exceptional reliability, compact design, and superior fuel efficiency. As a cornerstone of Kubota's 05-Series, it offers a versatile power solution for a vast range of light industrial, construction, and agricultural equipment. The engine family is designed to meet various global emission standards, providing customers with a seamless upgrade path while maintaining consistent installation dimensions.
The D1105 series comprises several key models to suit different power and regulatory requirements. The following table compares their primary specifications:
Shared Platform Specifications:
The D1105 engine is the power source of choice for many original equipment manufacturers (OEMs) due to its compact size and dependable performance. Its primary applications include:
Compact Construction Equipment: Powers mini excavators, skid-steer loaders, and small rollers.
Agricultural & Utility Machinery: Used in compact tractors, harvesters, pumps, and welding machines.
Power Generation: Serves as a reliable prime mover for diesel generator sets (e.g., 8-11 kVA standby power).
Material Handling: Found in forklifts and other light industrial vehicles.
Advanced TVCR Combustion System (D1105-K Model): The latest-generation D1105-K features Kubota's innovative TVCR system, which combines an enhanced Three Vortex Combustion System (E-TVCS) with electronic fuel injection control. This synergy delivers zero visible black smoke, reduces fuel consumption by approximately 5%, and enables seamless integration for automated and hybrid equipment.
Proven E-TVCS Combustion: Earlier models utilize Kubota's proprietary E-TVCS to create optimal air-fuel turbulence within the combustion chamber. This results in cleaner, more efficient burning, contributing to lower emissions and reduced noise and vibration.
Designed for Easy Integration & Upgrade: A key benefit of the D1105 series is its consistent external dimensions and mounting points across different emission tiers. This design allows equipment manufacturers to upgrade from older models (e.g., Tier 2) to the latest compliant engines (e.g., Tier 4 Final) with minimal redesign effort.
Legendary Kubota Durability: Built with a robust design, the engine ensures high reliability and a long service life even under demanding operating conditions. Its simple layout also facilitates easier maintenance.

The Kubota D1105 is a renowned 1.1-liter, three-cylinder diesel engine, celebrated globally for its exceptional reliability, compact design, and superior fuel efficiency. As a cornerstone of Kubota's 05-Series, it offers a versatile power solution for a vast range of light industrial, construction, and agricultural equipment. The engine family is designed to meet various global emission standards, providing customers with a seamless upgrade path while maintaining consistent installation dimensions.
The D1105 series comprises several key models to suit different power and regulatory requirements. The following table compares their primary specifications:
Shared Platform Specifications:
The D1105 engine is the power source of choice for many original equipment manufacturers (OEMs) due to its compact size and dependable performance. Its primary applications include:
Compact Construction Equipment: Powers mini excavators, skid-steer loaders, and small rollers.
Agricultural & Utility Machinery: Used in compact tractors, harvesters, pumps, and welding machines.
Power Generation: Serves as a reliable prime mover for diesel generator sets (e.g., 8-11 kVA standby power).
Material Handling: Found in forklifts and other light industrial vehicles.
Advanced TVCR Combustion System (D1105-K Model): The latest-generation D1105-K features Kubota's innovative TVCR system, which combines an enhanced Three Vortex Combustion System (E-TVCS) with electronic fuel injection control. This synergy delivers zero visible black smoke, reduces fuel consumption by approximately 5%, and enables seamless integration for automated and hybrid equipment.
Proven E-TVCS Combustion: Earlier models utilize Kubota's proprietary E-TVCS to create optimal air-fuel turbulence within the combustion chamber. This results in cleaner, more efficient burning, contributing to lower emissions and reduced noise and vibration.
Designed for Easy Integration & Upgrade: A key benefit of the D1105 series is its consistent external dimensions and mounting points across different emission tiers. This design allows equipment manufacturers to upgrade from older models (e.g., Tier 2) to the latest compliant engines (e.g., Tier 4 Final) with minimal redesign effort.
Legendary Kubota Durability: Built with a robust design, the engine ensures high reliability and a long service life even under demanding operating conditions. Its simple layout also facilitates easier maintenance.
