Fuel Filter OEM 612600081334 — Compatible with XCMG ZL50GN Wheel Loader

This fuel filter (OEM 612600081334) is a direct replacement for the XCMG ZL50GN wheel loader, a 5-ton class construction machine widely used in quarrying, mining, and heavy earthmoving applications. The filter uses a dual-stage filtration design: an outer depth-filtration cellulose layer rated at 10 microns for bulk particle removal, and an inner synthetic microfiber layer rated at 3-5 microns for final polishing before fuel enters the high-pressure common rail injection system. This dual-stage approach is critical for the ZL50GN’s Weichai WD10G220E23 engine, which uses a Bosch CPN2.2 high-pressure pump operating at 1,600-1,800 bar — at these pressures, any particle larger than 3-4 microns acts as an abrasive cutting tool against the pump plunger and injector needle seat. The filter canister is heavy-gauge steel with a 600 PSI burst rating and a water separator chamber with a clear sight bowl and bottom drain valve — the water separator must be drained daily in humid or rainy operating conditions where condensation in the fuel tank is accelerated.

Installing this fuel filter on a ZL50GN requires the fuel system to be primed using the manual hand primer pump located on the fuel filter head assembly. Do NOT attempt to crank the engine to prime the system — the Bosch CPN2.2 pump is lubricated by fuel, and running it dry for even 10-15 seconds of cranking will score the pump plungers and require a complete pump rebuild. Pump the hand primer until firm resistance is felt (typically 30-40 strokes for a dry filter), then loosen the bleed screw on top of the filter head and continue pumping until bubble-free fuel flows. Tighten the bleed screw and start the engine. If the engine runs rough for the first 30-60 seconds, shut down immediately and re-bleed — air still in the system. Common failure symptoms: engine loses power under load and produces white smoke (fuel starvation from clogged filter), water-in-fuel warning light stays on after draining the separator (emulsified water has passed through to the injection system), and hard starting after the machine has been parked on an incline (fuel has drained back to the tank through a failed check valve in the filter head).

This filter fits XCMG ZL50GN wheel loaders and other equipment using the Weichai WD10G engine platform with the Bosch CPN2.2 common rail system. Verify OEM number 612600081334 on your existing filter before ordering. For related filtration products, visit our Forklift Maintenance Parts section.

Technical Specifications

• OEM Part Number: 612600081334
• Application: XCMG ZL50GN Wheel Loader
• Filtration: Dual-Stage (10 Micron + 3-5 Micron)
• Burst Rating: 600 PSI
• Water Separator: Integrated with Sight Bowl & Drain Valve
• Engine Platform: Weichai WD10G220E23 (Bosch CPN2.2)

Each filter is factory-sealed and ships within 1-2 business days. 12-month warranty. For bulk orders, contact us. Browse our Forklift Maintenance Parts catalog.