Used MECALAC Engine

Available Engines by MECALAC Model

The MECALAC range includes machines with very diverse engine requirements, making the correct engine block identification essential before placing an order. The 12MTX, for example, features an 85 kW engine, while the 12MSX runs on a 55 kW block that doesn't require AdBlue.

On the tracked excavator side, the 15MC reaches 100 kW, maintaining its status as the most powerful machine in its category. Models 7 MWR and 9 MWR rely on a water-cooled 4-cylinder Deutz engine developing 55.4 kW.

Some recent models include separate electric motors dedicated to translation and equipment power supply, reducing CO2 emissions and extending hydraulic component lifespan. Knowing the exact power and generation of your machine allows you to identify the compatible block without risk of error.

Models 12 MXT, 12 MTX, and 12 MSX

• All three models share a common architecture with a swing diameter of 2,710 mm, ensuring proven urban compactness.
• The 0.75 m8 bucket loader is common to all three variants, offering a lifting capacity of up to 4 tons at 360.
• Some used 12MTX units in circulation feature an 82 kW Cummins QSB 4.5 engine, notably on 2013 model year machines.
• The 12MSX targets operators looking to reduce operating costs, its less powerful engine block being sufficient for typical earthmoving tasks.
• The 12MXT serves as the entry-level model of the series, suited for sites where versatility is prioritized over raw power.
• The 12MTX offers optional advanced features such as tiltrotator or joystick control, broadening its range of applications.
• Verifying the exact generation of the model (before or after series update) is essential for ordering the correct replacement engine block.

Models 11 CX, 714, and 8 MCR

These three models belong to older generations of the MECALAC range but are still commonly found on French construction sites. The 11 CX is a compact wheeled excavator whose used engine blocks remain sought after, especially for machines with several thousand operating hours.

The 714 is a wheeled backhoe loader whose engine parts circulate on the used market, evidenced by the presence of drive engines specifically referenced for this model. The 8 MCR, meanwhile, is a tracked excavator equipped with a Deutz engine, a robust and well-documented powertrain that facilitates sourcing spare parts.

For these models, the machine's age makes checking the serial number vital to identify the exact block version and avoid incompatibility issues during installation.

Cummins, Deutz: Which Brands Power Your Equipment?

• Deutz is the dominant engine supplier for Mecalac, equipping most wheeled excavators and compact loaders in the current range.
• Cummins primarily powers earlier generations of backhoe loaders, such as some 12MTX models produced before 2015.
• Deutz engines are known for reliable water cooling and durability under heavy usage conditions.
• Identifying the engine brand before ordering avoids compatibility errors, as Cummins and Deutz engines have different mounting interfaces.
• Deutz parts benefit from a dense distribution network in France, reducing procurement lead times for workshops.
• Compliance with Stage V standards mainly concerns recent Deutz engines, with specific requirements on lubricants used.

Engine Parts: Alternator, Mount, and Starter

Beyond the engine block itself, three components account for most failures on MECALAC machines: the alternator, the engine mount, and the starter. These peripheral parts are subjected to severe mechanical and thermal stresses, especially on machines exceeding 5,000 operating hours.

A faulty starter immediately immobilizes the machine on site. A failing alternator gradually deprives the machine of electrical charge, causing cascading failures on onboard systems.

The engine mount deserves particular attention: a cracked fixation generates abnormal vibrations that accelerate wear of hoses and surrounding wiring. Codimatra stocks these used parts for common models in the range, with traceability guaranteed for each reference.

Which Diesel Engines Should Be Avoided for a Mecalac?

• Blocks without documented maintenance history pose a significant risk, regardless of the engine brand.
• Engines exceeding 8,000 hours without a full overhaul expose buyers to rapid failures after reinstallation.
• Older Perkins versions installed on some 1990s models suffer from very limited parts availability in France.
• A block showing signs of overheating on the cylinder head, such as whitish deposits, should be systematically excluded.
• Engines that have experienced water-oil mixing, indicating a blown head gasket, often entail repair costs exceeding the price of a healthy block.
• Beware of reconditioned engines sold without written warranty or compression test report.
• A block from an accident-damaged machine, even if visually intact, may contain unseen internal cracks.

Warranties, Used Condition, and Quote Requests

At Codimatra, every used MECALAC engine undergoes rigorous validation by our quality department before sale. Our expert technicians systematically check compression, sealing, and shaft alignment to ensure component reliability. This technical expertise guarantees steady engine performance and optimizes the lifespan of your construction equipment.

This thorough inspection process enables you to buy with confidence, avoiding unpleasant surprises during reinstallation on your machine. For specific models or references not immediately available in stock, a custom quote request can be made directly via our online platform.

Whether you are a fleet manager, contractor, or workshop chief, Codimatra's team of experts precisely analyzes your operational constraints. We identify the perfectly compatible block for your equipment, be it an excavator or a loader, considering the exact model and its application. Our spare parts inventory is updated daily to meet operators' needs and ensure continuous service on French construction sites.