ZF 2093.247.072 TUBE | OEM Genuine Part

Overview

The ZF 2093.247.072 TUBE is a precision-engineered hydraulic or lubrication conduit designed to route pressurized fluid within the transmission sump of heavy-duty construction machinery. This OEM genuine part, identified by SKU 2093.247.072, functions as a critical bridge between the pump output and the valve body or differential housing assembly. By maintaining consistent fluid flow, it ensures proper cooling and lubrication for high-torque components such as the 2093109024: DIFFERENTIAL and the 2093209095: DIFFERENTIAL. Without this tube, the transmission cannot maintain adequate oil pressure, leading to rapid wear of internal gears and bearings.

Symptoms of Failure

• Visible oil seepage around the transmission housing: A cracked or corroded 2093.247.072 TUBE often produces slow, steady drips of ATF fluid, leaving dark stains on the bell housing or undercarriage.
• Erratic gear engagement or delayed shifting: When the tube loses structural integrity, hydraulic pressure drops, causing the transmission to hesitate before engaging forward or reverse gears—especially under load.
• Overheating transmission fluid: A restricted or collapsed tube restricts oil flow to the cooler, resulting in elevated sump temperatures that can exceed 120°C during normal operation.
• Whining or cavitation noise from the pump: Air ingestion through a damaged tube creates a high-pitched whine as the pump struggles to draw fluid, often accompanied by foamy oil on the dipstick.

Technical Specifications

Compatibility

This tube is specifically engineered for ZF’s WG series powershift transmissions used in wheel loaders, telehandlers, and graders. It is a direct fit for the WG180, WG200, and WG310 models produced between 2005 and 2020. The part also appears in certain ZF Ergopower and Ecolife variants where the differential housing configuration matches the tube’s bend radius. When replacing this tube, always inspect the mating 0750117075: TAPER ROLLER BEARING and the 2093309071: DIFF.HOUSING for signs of fretting or misalignment that could damage the new tube.

Related Components

Frequently Asked Questions

Q: Can I reuse the old O-rings when installing the 2093.247.072 TUBE?
A: No. ZF recommends replacing all sealing rings whenever the tube is removed. The tube’s O-ring grooves are machined to tight tolerances, and old seals can cause immediate leaks at the differential housing interface.

Q: How do I confirm this tube fits my WG200 transmission?
A: Measure the center-to-center distance between the two mounting bosses on your differential housing. The 2093.247.072 requires a 310 mm span. If your machine uses a different span, you may need the WG180 variant (part number 2093.247.071).

Q: What torque should I apply to the banjo bolts securing this tube?
A: Tighten to 35 N·m using a calibrated torque wrench. Over-torquing can distort the tube’s sealing face, while under-torquing invites vibration-induced loosening and subsequent oil loss.