The XCMG PN 860154875 (drawing D638-002-903+A) is a genuine fine fuel filter cartridge specified for XCMG construction machinery diesel systems — a consumable replaced at regular service intervals, listed as custom sparevia XCMG's service channel (machine-specific media rating, bypass characteristics and end-seal locked to OEM BOM; lead time runs longer than universal fuel cartridges, so advise ETD to distributors upfront). Supercession: old PN ~~860143654~~ → new PN 860154875; always quote both numbers to avoid "PN not found" pushback from legacy chassis manuals. The "RZ" suffix denotes RZ-type end-seal geometry on the cartridge cap, mating non-contact seal seats for low-friction, high-speed interface duty; the "+A" suffix indicates drawing revision (media or seal tweak), backward-compatible on fitment but ship to latest rev. Key points for export buyers: (1) D638-002-903+A is XCMG internal — β-rating, bypass cracking pressure and end-cap O-ring differ from look-alike fine fuel elements on other brands, so lock to XCMG BOM; (2) fine fuel ≠ primary / water-separator — XCMG fuel chains are typically two-stage "primary (WS) → fine (this PN)", confirm which stage the jobsite needs before ordering; (3) fine fuel cartridges are high-frequency consumables (1–2 pcs per service), making them stable re-order items for overseas service stations — good for periodic replenishment planning.
