# Engine Liebherr D946 A7 – reconditioned > Liebherr D946 A7 engine after regeneration, ideal for construction machinery. Check our offer! - Category: [Diesel engines](https://wibako.com/shop/diesel-engines.md) - Manufacturer: Liebherr - Stock number: 76586 - Condition: reconditioned - Price: on request - Availability: in stock Engine Liebherr D946 A7 – reconditioned. Fits: Crane Liebherr LTM1100, Crawler excavator Liebherr R960, Crawler excavator Liebherr R956LITRONIC and others. ## Specification - name: Engine - mark: Liebherr - type: D946 A7 - condition: reconditioned - category: Diesel Engines - availability: On order ## Description ##### Liebherr D946 A7 engine after overhaul – ready-to-install unit We offer a fully remanufactured **Liebherr D946 A7** engine, a six-cylinder inline diesel with a displacement of approx. 12.0 l, prepared for immediate installation in the machine or adaptation to a specific application. This is an **engine after a complete overhaul**, intended for users who expect consistent performance, reliability and minimal machine downtime. ###### Scope of overhaul and engine preparation - **Complete overhaul of the block and crankshaft–piston assembly** – new liners, pistons, rings, bearings, crankshaft inspection, grinding and balancing. - **Cylinder head and timing system** – refurbishment or replacement of valves, guides and stem seals, head resurfacing and camshaft inspection. - **Lubrication and cooling system** – new or remanufactured oil pump, verification of the water pump and thermostat, a complete set of new seals and **p**arts**** subject to wear. - **Fuel injection system repair** – refurbishment of injectors and high-pressure pump, verification of pressures and corrections on the test bench. - **Auxiliary equipment installation** – engine preparation for a specific machine (pulleys, hydraulic pumps, timing case, wiring harness). ###### Specifications and applications – engine for excavators, loaders, dumpers The **Liebherr D946 A7** engine is used in heavy construction and industrial machinery, where high torque and continuous operation are required. It is suitable as: - **engine for an excavator**, crawler or wheeled, - **engine for a loader**, wheel or telescopic, - **engine for a site dumper**, - **engine for a stationary machine** (crusher, screener, power unit). Depending on the software version and auxiliary equipment, the overhauled engine can achieve power output comparable to the factory specification and operate in demanding off-road conditions. ###### Diagnostics, dyno testing, service and repair Each **overhauled engine** undergoes full electronic **d**iagnostics**** and testing on the **d**yno**** under load. We verify oil pressures, temperatures, injection corrections and system tightness so that the **engine after repair** is ready for work from the very first start. We provide warranty and post-warranty **s**ervice****, including **mobile service** and **construction machinery service** in areas such as **Kraków**, **Małopolska** and **Podhale**. We carry out both **repairs and** **overhauls of engines** based on your existing unit. ###### Why choose a Liebherr D946 A7 engine after complete overhaul? - **Reduced downtime** – a ready, tested overhauled engine keeps machine downtime to a minimum. - **Reliability** – new or remanufactured components to factory standards and a full dyno test ensure stable operation in tough conditions. - **Configuration flexibility** – adapting auxiliary equipment to a specific machine so that installation is as non-invasive as possible. - **Technical support** – assistance during commissioning and parameter setup. For customers who prefer to keep their own unit, we also carry out engine repair based on the existing block, with the same scope of work as for a full remanufacture. ###### FAQ – frequently asked questions about the overhauled Liebherr D946 A7 engine - **Does the overhauled Liebherr D946 A7 engine have power similar to a new one?** Yes, an engine after a complete overhaul and dyno testing achieves parameters close to the factory specification. We document key values (pressures, temperatures) for each unit. - **What are the warranty conditions for the overhauled engine?** The warranty is valid with correct installation, use of recommended oils, filters and regular **service** in line with the maintenance schedule. Detailed conditions are agreed individually, depending on the application. - **My old engine has a different timing case, an additional hydraulic pump or a different turbocharger. Is repair and adaptation possible?** Yes, we offer adaptation of auxiliary components and **r**epair**** of the engine based on your unit. We adjust the configuration so that installation in the machine is as trouble-free as possible. - **Do you support machine diagnostics after the engine replacement?** Our **mobile service** can travel to your site, perform on-site **d**iagnostics**** and make start-up adjustments. ###### Liebherr engines – brand and technology **Liebherr** is an international group originating from Germany, founded in 1949 by Hans Liebherr. Over time, the company has grown into a group comprising many manufacturing plants and subsidiaries specializing in, among others, construction machinery, mining equipment, cranes, handling equipment and components such as diesel engines. The diesel engine series **D934, D936, D944, D946** and related types were designed specifically for heavy-duty applications – including excavators, loaders, dumpers, cranes and stationary installations. These power units combine high power density, low fuel consumption and the ability to operate in harsh environmental conditions. Modern Liebherr engines meet current exhaust emission standards (depending on version, up to **EU Stage V / EPA Tier 4f**) and use advanced injection systems and sophisticated electronic control units. This makes them a popular choice in construction and industrial machinery, where reliability, long service life and good availability of spare **Parts** are essential. ## Fits (machines and engines) - Crane Liebherr LTM1100 - Crawler excavator Liebherr R960 - Crawler excavator Liebherr R956LITRONIC - Żuraw samojezdny terenowy Liebherr LTM1250-5.1 - Żuraw samojezdny terenowy Liebherr LTM1095-5.1 - Układarka do rur Liebherr RL66LITRONIC - Mobile crane Liebherr LTM1100-4.2 ## Reference numbers D946 A7 ## Guides and case studies - [Reconstruction of the Liebherr D946 A7 Engine in the Liebherr R 956 Excavator](https://wibako.com/about-us/news/685-reconstruction-of-the-liebherr-d946-a7-engine-in-the-liebherr-r-956-excavator.md) - [Liebherr R 956 – Efficient Crawler Excavator for Heavy Earthworks](https://wibako.com/about-us/blog/659-liebherr-r-956-efficient-crawler-excavator-for-heavy-earthworks.md) - [Liebherr PR 756 Litronic – Crawler Dozer with D946 A7 Engine](https://wibako.com/about-us/blog/698-liebherr-pr-756-litronic-crawler-dozer-with-d946-a7-engine.md) - [Renovation of the Liebherr D946 A7 Engine in the Liebherr PR 756 Litronic Bulldozer](https://wibako.com/about-us/news/668-renovation-of-the-liebherr-d946-a7-engine-in-the-liebherr-pr-756-litronic-bulldozer.md) --- Source: https://wibako.com/shop/diesel-engines/64793X76586-engine-liebherr-d946-a7 Contact: +48338704200, biuro@wibako.pl