ZF 5838.300.716 LUBRICATION TUBE | OEM Genuine Part

Overview

The ZF 5838.300.716 LUBRICATION TUBE is a critical fluid delivery component engineered for heavy-duty construction machinery transmissions. This OEM genuine part ensures precise oil flow to high-friction zones within the gear train, preventing thermal degradation and component seizure. Positioned within the upper valve body assembly of ZF powershift transmissions, the 5838.300.716 tube channels pressurized lubricant directly to the differential and planetary gear sets. Without this tube, internal oil starvation occurs rapidly, leading to accelerated wear on adjacent components such as the 2093109003: DIFFERENTIAL and the 0750117075: TAPER ROLLER BEARING. The SKU 5838.300.716 is laser-etched on the tube body for quick identification during rebuilds.

Symptoms of Failure

• External oil seepage at transmission housing seam: Cracks or fatigue in the tube wall cause pressurized ATF to weep from the gasket line, often mistaken for a pan gasket failure.
• Intermittent gear slipping under load: A collapsed or blocked tube reduces lubrication to the 2093209096: DIFFERENTIAL, causing clutch packs to overheat and momentarily lose torque transfer.
• Whining noise from differential housing: Insufficient oil delivery to the 2093309073: DIFF.HOUSING creates metal-on-metal contact, producing a high-pitched whine that intensifies during turns.
• Elevated transmission temperature gauge readings: The lubrication tube failure starves the oil cooler circuit, causing the transmission to run 20-30°F hotter than normal during extended operation.

Technical Specifications

Compatibility

This lubrication tube is designed for ZF WG-series powershift transmissions commonly found in wheel loaders, graders, and telehandlers. Compatible models include WG180, WG200, WG210, and WG310 series. It also fits select ZF 4WG-200 and 6WG-200 variants used in construction machinery from 2005 onward. Always verify the tube routing against the 2097309085: DIFFERENTIAL AXLE assembly diagram before installation.

Related Components

Frequently Asked Questions

Q: Can I replace the 5838.300.716 tube without removing the transmission?
A: Yes, in most ZF WG-series applications the tube is accessible after draining the fluid and removing the lower valve body cover. However, if the tube is severely corroded, the differential housing may need partial disassembly to extract broken fragments.

Q: What causes this lubrication tube to fail prematurely?
A: The most common cause is vibration-induced fatigue from loose transmission mounting bolts. Additionally, using non-OEM ATF with incorrect viscosity can create pressure spikes that deform the tube wall over time.

Q: Is the 5838.300.716 tube interchangeable with the 5838.300.715 variant?
A: No. The 5838.300.716 has a 12 mm outer diameter with a 90-degree bend, while the 5838.300.715 uses a 10 mm diameter with a straight configuration. Using the wrong tube will cause oil starvation to the differential assembly.