Parts for Liebherr Engines

Liebherr Components, Assemblies, and Parts

Where to find the Liebherr engine serial number?

The Liebherr engine serial number is most often found on a metal nameplate attached to the engine block. In newer power units, this plate may be placed on the top valve cover. In case it is missing or damaged, the serial number is permanently stamped directly into the metal on a machined part of the engine block. In construction machinery, the engine identification number is also always repeated on the machine's main nameplate located on the frame or in the cab, and it appears in the technical documentation and vehicle service book. Finding this number is crucial for correct part selection and efficient communication with service, as it allows for the precise determination of the technical specifications of a given power unit.

WIBAKO - Your Reliable Partner

Trust the Experts in Liebherr Machinery

In the world of construction machinery, downtime generates the greatest losses, and buying Liebherr engine parts based on uncertain replacements is a gamble. Our origin did not start with sales, but with real machine repairs and service. Every day in our workshop, we dismantle, verify, and restore Liebherr internal combustion engines to life. It is this practice that has allowed us to create an offer of parts for which we vouch with our own reputation. Over the years, we have tested hundreds of replacements. Today, in Wibako's range, you will find only those that lasted as long as the originals in our load tests. If a given component did not prove itself in our service - it will not end up in your machine.

From experience:

Recently, a Liebherr D936 engine came to our service center where cheap gaskets from an unknown source had been used. The result was a costly leak after only 200 operating hours. This event confirmed our belief that at Wibako, we only offer components from proven OEM suppliers or originals. Quality verification is our standard, not an add-on.

Specialized Consulting

Wibako Expert Support in Selecting Liebherr Engine Parts

When choosing to contact Wibako, you do not encounter random sellers, but rather come under the care of specialists such as our sales expert, Łukasz. He has been involved in the construction machinery industry for over 15 years and knows Liebherr engines down to almost every bolt, which translates into unique advisory value in daily work. This deep substantive knowledge means that the purchasing process at Wibako goes far beyond simple order fulfillment. Łukasz, based on his many years of experience, can look at every repair comprehensively, anticipating challenges that others often forget. The support he offers is much more than trade—it is a professional partnership based on the analysis of hundreds of performed overhauls and thousands of selected parts. His engineering approach allows our clients to avoid costly assembly errors and realistically optimize machine operation expenses. Thanks to the fact that Łukasz personally supervised the processes of selecting components for the most demanding Liebherr units, he can instantly verify the correctness of OEM numbers and propose components that will guarantee the engine a second life.

Eliminating the Risk of Liebherr Engine Failure Through Expert Advice

Expert Regeneration and Part Selection for Liebherr Engines

Correct selection of parts for Liebherr power units requires not only knowledge of catalog numbers but, above all, an understanding of assembly tolerances and the structural specificities of these engines. As specialists at Wibako, during component verification, we pay special attention to parameters that determine the lifespan of the engine after an overhaul.

Verification of Fits and Tolerances (Line Boring)

A key element in selecting main and connecting rod bearings is the analysis of the crankshaft's dimensional class. In Liebherr engines, we often deal with shafts subjected to nitriding or induction hardening. Our knowledge allows us to precisely select undersized bearings in situations where shaft journals require grinding, while maintaining rigorous oil clearance standards, which for these units oscillate between 0.040 - 0.110mm.

Specifics of the Common Rail System and Injectors

In newer generations of Liebherr engines (meeting Stage IV and V standards), the heart of the system is a high-pressure injection system. At Wibako, we not only deal with providing injectors but also offer full advice on their coding and assembly cleanliness. We remind our customers that even microscopic contamination of 5 microns can lead to premature wear of injector tips in engines.

Cylinder Liner Geometry and Gasket Selection

When seating cylinder liners in a Liebherr block, the key parameter is their protrusion above the block surface (so-called liner protrusion). Too small a value results in improper cylinder head gasket pressure and the risk of blow-bys, while too large a value can lead to the liner flange cracking. At Wibako, we select sealing sets (O-rings) with appropriate thermal resistance that must withstand extreme operating conditions in the combustion chamber, ensuring the cooling system's tightness for thousands of operating hours.

Liebherr D926 Engine in Practice

Technical Analysis and Expert Opinion

Liebherr D926: pros, cons, and common failures - watch the video!

In this video material, our specialists take a close look at one of the most popular power units in the industry - the Liebherr D926 engine. Instead of theoretical descriptions from catalogs, we focus on real experiences derived from hundreds of hours of repairs and diagnostics performed at the Wibako service center. The film constitutes a comprehensive summary of the pros and cons of this model, with particular emphasis on its structural durability and critical points that most often fail under intensive operation.