Wacker Neuson 5000163991 RD16 Drain Fan Motor to T Front Hose

The Wacker Neuson is a genuine OEM RD16 Drain Fan Motor to T Front Hose designed for the RD16-90 and RD16-100 tandem roller series, as well as CB14B soil and asphalt compaction rollers. As a factory-sourced hydraulic hose assembly, part is manufactured to exact routing, diameter, and connection specifications for a direct installation fit. This hose routes hydraulic fluid from the drain port of the fan motor to the T-fitting at the front of the machine, maintaining proper fluid return within the hydraulic circuit. Keeping this line in sound condition is essential to preventing pressure loss, fluid contamination, and potential fan motor damage during compaction operations.

Key Features

• Genuine OEM Construction: — Manufactured to Wacker Neuson's original hydraulic hose specifications, ensuring correct inner diameter, pressure rating, and end-fitting configuration for this drain circuit.
• Direct Routing Match: — Pre-formed and sized to follow the exact path from the fan motor drain port to the front T-fitting, allowing installation without cutting, adapting, or re-routing.
• Broad Roller Compatibility: — Confirmed fitment across multiple RD16-90 and RD16-100 vibratory and hydrostatic tandem roller configurations, as well as CB14B-900 and CB14B-1000 soil and asphalt compaction roller variants.
• Hydraulic Circuit Integrity: — A worn or leaking drain hose can cause back-pressure buildup at the fan motor, leading to seal failure and motor damage; replacing with a correctly rated OEM hose restores proper low-pressure return flow.
• Verified Part Number: — Listed directly under Wacker Neuson part 5000163991, so you can confirm the correct component before ordering against your machine's serial number.

The drain hose on the fan motor hydraulic circuit carries low-pressure return fluid away from the fan motor's internal drain port and back into the system via the T-fitting at the front of the roller. Unlike high-pressure supply lines, this is a case-drain circuit, but it must remain free-flowing — any restriction or leak in this line creates back-pressure that can force past the motor's internal seals, causing oil bypass and premature motor failure. On tandem rollers like the RD16-90 and RD16-100, reliable fan motor operation is directly tied to engine cooling performance, making the condition of this hose critical to sustained operation under load.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

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