Used Construction Transmission Parts: The Complete Codimatra Stock - Construction Equipment

For construction professionals, having a machine out of service on site is costly. Choosing a used transmission part often means saving 40 to 60% compared to new parts, without compromising reliability.

Codimatra supplies construction sites across France as well as international clients, with compatible references for mini excavators, telescopic handlers, mobile cranes, and dump trucks. Our stock includes major brands such as Caterpillar, Volvo, Komatsu, Liebherr, and JCB.

Each part is carefully identified by its original manufacturer reference before entering stock. This traceability ensures precise compatibility with your machine, regardless of its generation.

Our Stock of Used Construction Machinery Transmission Parts

• Codimatra's stock includes several hundred transmission part references for used public works machinery.
• Gearboxes, drive shafts, axles, torque converters, and transfer cases are available for immediate shipment from our warehouses.
• Each component comes from machines dismantled according to a strict protocol ensuring traceability and actual mechanical condition of the part.
• The parts cover a wide range of brands, from Caterpillar references to equipment from ZF, Dana, or Allison for construction machinery.
• A systematic quality control is conducted on every transmission element before sale, minimizing the risk of returns on site.
• Our technical team verifies the compatibility of each part with your exact model, including for older or discontinued machines.
• Availability listings are regularly updated to reflect the real stock status, with no unexpected supply delays.

Gearbox and Transfer Case

The gearbox in a construction machine manages motor torque distribution based on load and travel speed. On a loader or articulated dump truck, it absorbs the most severe site stresses — making it one of the first parts to monitor closely.

The transfer case plays a complementary role: it distributes power between front and rear axles, essential for all-wheel-drive machines. A failing transfer case reveals itself through metallic noises when shifting or abnormal vibrations at low speeds.

Codimatra offers used gearboxes and transfer cases for leading brands — Caterpillar, ZF, Allison, Dana — also compatible with certain agricultural equipment. Each part is cataloged by its OEM number to guarantee perfect fit for your model.

Drive Shaft and Machine Axle

• The drive shaft mechanically connects the gearbox to the drive axles, transmitting torque along the entire machine length.
• A worn or bent shaft causes jerks noticeable during acceleration, signaling urgent replacement is needed.
• On a Volvo A25 articulated dump truck, the central drive shaft withstands extreme torsion during loaded maneuvers.
• The axle distributes motion to the wheels through the differential, enabling turns without excessive tire slip.
• Axle hubs often feature multi-disc oil-bath braking systems, prolonging the assembly's lifespan.
• Codimatra stocks drive shafts and axles for backhoe loaders, wheel loaders, and graders, also covering some agricultural equipment ranges.
• OEM references for shafts and axles must be verified before ordering, as lengths and splines vary with machine generations.

Final Drive, Torque Converter, and Axle Hub

The final drive acts as a final reduction gear: placed between the axle and the rim, it lowers rotational speed while increasing torque transmitted to the wheels. On a 20-ton wheel loader, this reduction can reach a 6:1 ratio, explaining the available pulling power even at very low speeds.

The torque converter provides the hydraulic coupling between the combustion engine and the gearbox. Unlike a standard mechanical clutch, it absorbs load shocks and protects the transmission during sudden power surges — a decisive advantage for bulldozers and dump trucks in tough conditions.

Every Codimatra torque converter is tested and inspected before shipment, backed by 40 years of expertise in construction transmission parts. The axle hub, the last link in the drivetrain chain, concentrates braking and traction forces: its condition directly impacts machine safety and control precision.

Filter by Brand: Caterpillar, Volvo, Komatsu…

Caterpillar, Volvo, Komatsu, JCB, Liebherr, or Case: each manufacturer develops its own transmission architectures, with geometries, ratios, and OEM references that are not interchangeable between brands. Knowing your machine's exact brand is the first step to identifying the right part.

At Codimatra, the stock covers all these major brands, including specialized equipment suppliers such as ZF, Dana, Allison, and Clark, whose gearboxes equip machines from various manufacturers.

A Komatsu WA380 does not use the same transfer case as a Caterpillar 950, even if their sizes are close. It is precisely this brand and model-specific knowledge that allows our technicians to quickly guide you to the correct reference.

Compatible with Which Construction Machine?

• Graders use automatic multi-speed gearboxes subject to frequent direction changes.
• Vibratory drum compactors put strong strain on drive shafts during repeated passes over loose or rocky ground.
• Wheeled excavators combine a rotation reducer for the turret and hydrostatic transmission for travel on roads.
• Telescopic handlers require a robust transfer case to ensure traction in off-road conditions with loads raised.
• Large rigid dump trucks, such as those in quarries, feature axles with final drives sized for loads of 40 tons or more.
• Mini wheeled excavators under 6 tons use hydraulic travel motors without conventional gearboxes.
• Self-propelled scrapers, less common on French sites, have specific hydromechanical transmissions rarely stocked as standard.

Backhoe Loaders, Wheel Loaders, and Bulldozers

The backhoe loader features a front hydrostatic transmission for the loader bucket, coupled with a mechanical gearbox for propulsion — two distinct systems that must work in perfect coordination. A fault in either can immobilize the machine on site.

The wheel loader subjects its gearbox to repeated forward/reverse shifts, sometimes dozens of times per hour during loading cycles. This intensive use regime causes premature wear of internal components.

The bulldozer is a special case: its transmission is often automated with an integrated torque converter, but some tracked models use hydrostatic transmissions controlling each track independently. Codimatra carries parts suited for all three machine types across multiple brands.

Articulated Dump Trucks and Graders

• The articulated dump truck transmits power via three drive shafts connecting the cab to the rear chassis, a unique design under high stress.
• The dump truck's central articulation allows rotation angles up to 45°, stressing constant-velocity joints during loaded turns.
• A Volvo A30 or Bell B30 in quarry service can perform over 400 loading cycles per day, accelerating transmission component wear.
• Graders engage their gearboxes forwards and backwards during adjustment passes, multiplying stress on internal synchronizers.
• On a Caterpillar 140 grader, the rear tandem axle smooths terrain irregularities via an integrated oscillation system.
• Codimatra stocks transmission parts for articulated Volvo, Bell, and Caterpillar dump trucks as well as major grader ranges.
• Verifying your machine's serial number is essential to distinguish transmission generations, especially on newer articulated dump trucks.

When to Replace a Construction Transmission Part?

Several warning signs are clear: unusual metallic noises during gear changes, abnormal vibrations felt through the cab floor, or a sudden unexplained loss of traction. Oil leaks at the axle housing or gearbox often indicate a failed seal needing prompt repair.

Delaying replacement systematically worsens damage to adjacent components. A worn torque converter eventually causes gearbox failure — a repair then costing two to three times more.

Other symptoms require immediate attention:

• Difficulty engaging a gear or harsh, jerky engagement
• Abnormally high transmission temperature under load
• Noticeable power loss at the working tool despite normal engine speed

At the first sign of any of these, a quick diagnosis helps identify the faulty part before site downtime becomes unavoidable.

Tested and Inspected Used Spare Parts

• Each received transmission part undergoes complete disassembly and visual inspection by our technicians.
• Internal components such as synchronizers, bearings, and seals are measured against tolerances defined by the original manufacturer.
• Any part failing inspection is never resold: it is immediately removed from available stock.
• OEM references are verified and labeled on each part to ensure full traceability back to the original machine.
• Approved parts are stored in humidity- and shock-protected conditions to preserve their condition until delivery.
• A technical report can be provided on request, detailing the control points checked on the selected part.
• This validation process significantly reduces the risk of on-site returns and secures your investment in used parts.

How to Order from Codimatra? (Construction Dismantling)

To place an order, contact the Codimatra team directly by phone or through the online form, specifying your machine's brand, model, and serial number. The more precise the information, the faster and more accurate the technical response.

An expert usually calls back within 24 business hours to confirm part availability and provide a personalized quote. No last-minute surprises: the quoted price includes the actual condition of the inspected part.

Once your order is confirmed, shipment is arranged throughout France with carriers specializing in bulky mechanical parts. Delivery times vary by destination, but immediate stock availability avoids the typical weeks-long wait found with traditional resellers.