Weichai Fuel Filter 612600081334 Fitment
Weichai fuel filter 612600081334 must match the engine’s filter head and fuel circuit. The part number is visible in the record; confirm it against the engine serial and the removed filter label before ordering.
Check the head interface
Compare thread diameter and pitch, gasket outside diameter and gasket position.
Record canister height and diameter where clearance is limited.
Check whether the assembly includes a drain, water sensor or electrical connector.
Follow the marked fuel-flow direction and confirm the head’s inlet and outlet.
When fuel restriction appears
Low power, hard starting or stalling can result from a plugged filter, but also from contaminated fuel, a blocked tank pickup, air entering a hose or a weak supply pump. Check restriction and inspect drained fuel for water or debris before replacing parts.
Replacement and priming
Clean around the head before removal. Lubricate the new seal as specified, seat it without twisting and tighten using the filter maker’s instructions. Prime the circuit with the approved method, bleed air and check for leaks before loading the engine.
Related filter references
Compare the Weichai fuel filter 612600081335 guide. The adjacent number is a separate listing and is not stated to be interchangeable.
FAQ
Does a matching canister size prove fitment?
No. Thread, seal, flow path and water-sensor or drain provisions must match.
Should the system be primed after replacement?
Yes. Follow the engine procedure to remove air and prevent dry operation.
What should be sent if the label is unreadable?
Provide engine serial, filter-head photos, thread and seal measurements, and drain or sensor details.
Compatibility: Verify engine serial and filter-head interfaces before purchase.
