879884T Marine Fuel Filter for Mercury Mariner 30-60 HP EFI 4-Stroke

It fits Mercury and Mariner 30, 35, 40, 50 and 60 HP EFI four-stroke outboards, both 3-cylinder and 4-cylinder, that use the under-cowl screw-on filter bowl. Check the number on the cartridge you remove: 879884T or 35-879884T.

Yes. 879884T and 35-879884T are the same Mercury / Mariner cartridge fuel filter under two catalogue forms, and this cartridge replaces either number.

Plan on once a season or every 100 engine hours, whichever comes first. Water or dark debris visible in the bowl, hard starting or rough idling all mean replace it sooner.

A cartridge and its O-ring seal are included, and the cartridge installs into the screw-on bowl already fitted under the cowl. If your bowl is cracked or missing, order the complete assembly instead.

Yes. Hand-twist the bowl open, lift out the old cartridge, seat the new one with its O-ring and hand-tighten. Prime the fuel system, start the engine and check for leaks before you leave the dock.

MOQ varies by product: 5–100 units for standard parts (see product page). Tier pricing decreases with volume. Custom parts usually ≥ 50 units, evaluated by process.

Stock/short-run: 7–15 days; bulk orders 20–35 days; custom 30–45 days incl. sampling. Note your deadline in the inquiry — sales will confirm capacity.

Add products to the inquiry list and submit with contact info. Sales contact you within 24h and issue a formal quotation (tier pricing + proforma invoice) within 48h. The AI assistant can pre-fill inquiries in chat.

Yes. We develop from drawings/samples and support private labeling. Process: evaluation → sampling (15–25 days) → approval → mass production.

Payment: T/T 30% deposit + 70% before shipment / L/C / Trade Assurance. Shipping: FOB Ningbo/Shanghai, CIF or DDP; EU & NA warehouses; sea/air/express.

ISO 9001 & IATF 16949; CE/UL/ATEX on key products. Every batch ships with inspection reports; third-party inspection (SGS/BV) supported.