ZF 2093.310.137 CYLINDER | OEM Genuine Part

Overview

The ZF 2093.310.137 CYLINDER is a precision-machined hydraulic actuation component engineered for heavy-duty construction machinery transmissions. This OEM genuine part functions as a critical pressure vessel within the transmission control system, converting hydraulic fluid force into linear mechanical motion to engage clutch packs and shift gears. Positioned inside the valve body or directly on the transmission housing, the 2093.310.137 cylinder ensures precise oil flow regulation for smooth power delivery under extreme loads. As an OEM part, it meets ZF’s exacting tolerances for bore diameter, surface finish, and seal compatibility, making it essential for maintaining factory-specified shift timing and torque capacity.

Symptoms of Failure

• Hydraulic fluid seepage around the cylinder body – Worn seals or micro-cracks in the 2093.310.137 bore cause external oil leaks, often visible as drips on the transmission casing after shutdown.
• Delayed or harsh gear engagement – Internal scoring or piston binding prevents the cylinder from achieving full stroke, resulting in sluggish clutch application or abrupt shifts under load.
• Erratic transmission pressure readings – A failing cylinder allows internal bypass, causing pressure fluctuations that trigger warning lights or diagnostic fault codes for low line pressure.
• Contaminated hydraulic oil with metallic debris – Spalling or galling inside the cylinder bore generates fine metal particles, accelerating wear on downstream components like the 2093109029: DIFFERENTIAL and valve spools.

Technical Specifications

Compatibility

This cylinder is designed for ZF’s WG180, WG200, and WG210 series powershift transmissions commonly used in wheel loaders, graders, and excavators. It also fits select models of the ZF 4WG-200 and 6WG-200 drivelines. The 2093.310.137 interfaces directly with the 0750117075: TAPER ROLLER BEARING in the clutch drum assembly and works in conjunction with the 2093209094: DIFFERENTIAL for torque distribution. Always verify your transmission model and serial number before ordering.

Related Components

Frequently Asked Questions

Q: Can the 2093.310.137 cylinder be rebuilt with a seal kit?
While seal replacement is possible, ZF recommends replacing the entire cylinder assembly due to the risk of bore wear or internal scoring that cannot be detected visually. Using a new OEM part ensures proper clearance with the 2093309078: DIFF.HOUSING and prevents future leakage.

Q: How do I know if this cylinder fits my ZF WG200 transmission?
Check the transmission serial number plate. The 2093.310.137 is compatible with WG200 units built after 2010. If your transmission uses a different bore diameter, you may need the 2097309085: DIFFERENTIAL AXLE adapter kit.

Q: What is the typical lifespan of this cylinder in a wheel loader?
With proper oil filtration and regular fluid changes, the 2093.310.137 cylinder typically lasts 4,000–6,000 operating hours. Early replacement is advised if you notice metal particles in the oil, as they can damage the 4482360001: DIFFERENTIAL BEVEL GEAR.