DEUTZ TCD 4.1 L4 Diesel Engine

Overview

The DEUTZ TCD 4.1 is the four-cylinder engine at the top of the DEUTZ compact range and the direct successor to the long-serving DEUTZ 2012 series. With 4.038 litres of displacement, an output of 80 to 115 kW and 609 Nm of torque at 1600 rpm, it is intended for medium-size equipment such as backhoe loaders, forklifts, crawler drills and larger air compressors. Because it shares its design architecture with the six-cylinder TCD 6.1, fleets that run both engines benefit from a common service approach and similar parts handling.

Seven Star LLC supplies the DEUTZ TCD 4.1 to equipment manufacturers, contractors and industrial maintenance departments in Oman and throughout the GCC. Customers receive the manufacturer datasheet with each quote, together with engineering support in Muscat that helps teams select the correct rating and emission configuration.

Working Principle

The DEUTZ TCD 4.1 is a water-cooled inline diesel with turbocharging, intercooling and cooled external exhaust gas recirculation. Compressed intake air is cooled before entering the cylinders, while a controlled stream of cooled exhaust gas lowers peak combustion temperature and therefore NOx formation. The DEUTZ Common Rail (DCR) system meters fuel at high pressure, and the EMR 4 electronic control coordinates injection with the machine drive management.

Downstream of the engine, DEUTZ uses a modular exhaust aftertreatment system built from its DVERT component kit. DEUTZ highlights that this system regenerates without downtime, so the machine does not have to be stopped for a parked regeneration cycle. The engine and its aftertreatment are tuned together for overall efficiency, which DEUTZ says keeps fuel and total running costs to a minimum.

Engineering Design of the DEUTZ TCD 4.1

The engine uses a 101 mm bore and 126 mm stroke, shared with the TCD 6.1, and the 2026 DEUTZ AG datasheet lists a weight of 400 kg and an engine length of 852 mm. Maximum nominal speed is 2300 rpm. DEUTZ kept installation and connection dimensions consistent with earlier generations, so a machine builder upgrading to a newer emission stage does not need to redesign the engine bay.

For driven equipment, the DEUTZ TCD 4.1 offers full power take-off at both flywheel and front end and up to three auxiliary PTO drives with a total of up to 315 Nm. Long oil change intervals and easy fluid changes reduce running costs and raise machine availability, according to DEUTZ Corporation.

Workshops that already maintain the earlier 2012 series will find the layout of this engine familiar, which shortens technician training and helps keep spare parts planning simple across a mixed fleet of older and newer machines.

Key Features

The DEUTZ TCD 4.1 offers these documented features for industrial and mobile machinery.

• Power output of 80 to 115 kW at 2300 rpm according to ISO 14396.
• Maximum torque of 609 Nm at 1600 rpm from a 4.038 litre displacement.
• DEUTZ Common Rail injection with EMR 4 electronic engine control.
• Turbocharging with intercooling and cooled external exhaust gas recirculation.
• Modular DVERT exhaust aftertreatment that regenerates without machine downtime.
• Compliance with EU Stage V, US Tier 4 and CN IV, and listed as HVO ready.
• Up to three additional PTO drives with a combined torque of up to 315 Nm.
• Agricultural and emission-downgrade (Stage IIIA / Tier 3) versions available.

Industrial Applications

In Oman, the DEUTZ TCD 4.1 is a strong candidate for skid-mounted pumping units in water transfer schemes, mobile screw compressors serving pipeline and tank maintenance crews, and construction equipment working on road and port projects around Duqm and Sohar. Its high torque at moderate speed helps machines operate in high ambient temperatures without being pushed to the top of their speed range. Teams evaluating heavier power, such as the Perkins 2506C-E15TAG2 diesel engine, can use the 4.1 for lighter auxiliary duty on the same site.

Seven Star LLC supplies the DEUTZ TCD 4.1 together with generator and engine control hardware including the Cummins PowerCommand display-control assembly, giving maintenance teams in the GCC one regional source for engines and controls. For complete prime power solutions, our range also includes packaged equipment like the Cummins 312/315 kVA diesel generator set.

Fuel, Emissions and Service Planning

The DEUTZ TCD 4.1 is listed as HVO ready, meaning it can operate on hydrotreated vegetable oil, a paraffinic renewable diesel that helps fleet owners reduce lifecycle carbon emissions without modifying the engine. For operators in the region who are starting to track Scope 1 emissions on rented and owned equipment, this gives a practical path to lower reported emissions using the same machines.

Service planning is equally important on remote sites. DEUTZ highlights long oil change intervals and easy changing of engine fluids, and the aftertreatment regenerates during normal operation rather than requiring the machine to stand still. For specific ratings involving exhaust aftertreatment, DEUTZ recommends consulting its application engineering, and Seven Star LLC can coordinate that information request as part of your quotation. Where machines will work in high ambient temperatures, we also recommend reviewing cooling package capacity with the equipment builder before final selection of the DEUTZ TCD 4.1 rating.

Technical Specifications

The DEUTZ TCD 4.1 values below come from the DEUTZ AG 2026 product datasheet.

How to Order

Request a quotation for the DEUTZ TCD 4.1 by sending Seven Star LLC your application, required output and emission standard. The Muscat engineering team will confirm the configuration against the DEUTZ datasheet downloadable from this page and advise on stock and delivery to sites in Oman and the GCC.