Forklift Oil Water Separator CL0005811 – Nissan Engine

Forklift Oil Water Separator CL0005811 — Nissan Engine, Factory Direct

This is the oil water separator (part number CL0005811) for Nissan forklift diesel engines — the fuel filtration component that removes water and solid contaminants from diesel fuel before it enters the injection pump. Nissan forklift engines (particularly the K-series, H-series, and TD-series diesels) use a Bosch or Zexel-designed injection system that operates at injection pressures of 200-1,000+ bar depending on the engine generation — at these pressures, water in the fuel acts as an abrasive that erodes the precision-ground surfaces of the injection pump plungers and delivery valves. The oil water separator is the first line of defense: fuel from the tank passes through the separator where the filter element captures solid particles and the settling chamber separates water by gravity. The CL0005811 is a complete separator unit designed for Nissan engine fuel systems — verify the inlet and outlet fitting sizes and thread types before installation, as Nissan engines may use metric or JIS (Japanese Industrial Standard) fittings depending on the production year and market.

Manufactured in China. New condition. Part number CL0005811, oil water separator product name. Parts for Nissan engine forklift applications. When replacing, drain the old separator and check for water accumulation — regular water indicates contaminated fuel storage. Fill the new separator with clean diesel before installation. Lubricate the O-ring with diesel. Hand-tighten plus 3/4 turn. Bleed the fuel system after installation. Check for leaks.

Compatible with Nissan diesel engine forklifts. Browse our water oil separator selection. Visit Nissan Forklift official website.

Technical Specifications

Compatible Models

Bleed fuel system after install. Confirm your Nissan model →