GXFCY Fuel Water-Separator & Oil/Fuel Kit FS20083/LF17511/PF9908 — ISX DD13/DD15/DD16

GXFCY FS20083 + LF17511 + PF9908 is a replacement fuel water-separator and oil/fuel filter kit designed to protect Detroit Diesel ISX engines by removing contaminants and water from fuel before combustion.

This GXFCY filter kit bundles compatible replacements that match common OEM cross-references, offering a practical aftermarket option for ISX DD13, DD15 and DD16 engines. It is engineered to trap particulates and separate free water, helping maintain fuel system performance and extending service intervals when installed and changed per service schedules. The kit is sold as replacement parts—not factory originals—and arrives with a 12-month warranty and lifetime support from GXFCY.

What exact filter numbers does this GXFCY kit replace?

The kit corresponds to several widely used reference numbers across fuel and oil lines, making it easy to match to existing service parts lists. Use these cross-references when confirming compatibility with your engine or fleet records.

• PF9908 cross-references include: P551063, A4700903151, A4720900451, FK13834, L5104F, KX2765 and WF10103.
• FS20083 matches references such as A0000905051, A48507 and PF46145.
• LF17511 aligns with many numbers including P551005, LF17474, P7505, A4721800509 and LF673.

How do I install and prime the GXFCY fuel/water separator and filters?

Installation is straightforward when standard service procedures are followed. Replace the old element, dispose of it responsibly, then prime the system before starting the engine to prevent air pockets and ensure immediate protection.

• Remove and recycle the used filter—do not reinstall an old element.
• After installing the new filter, prime according to engine manufacturer steps.
• Start the engine, let it run for several minutes and inspect for leaks at fittings and seals.

Will this kit fit my Detroit Diesel ISX engine and what should I check?

These GXFCY replacement filters are intended for Detroit Diesel ISX platforms (DD13, DD15, DD16). Confirm fitment by cross-referencing part numbers, physical dimensions, and mounting type with your current service parts or parts manual.

• Designed for ISX DD13, DD15 and DD16 engines.
• Verify by matching cross-reference numbers and filter connections.
• Check that the sealing face and thread type align with your mounting boss.

What ongoing maintenance and warranty support does GXFCY provide?

Regular replacement of fuel and oil filtration elements helps avoid accelerated wear in fuel systems and engines. GXFCY recommends following scheduled change intervals and offers a 12-month warranty plus lifetime support for product questions or post-sale assistance.

• Replace filters at recommended service intervals to prevent wear.
• 12-month warranty covers manufacturing defects; contact GXFCY support for help.
• Note: these are quality replacement parts, not original equipment manufacturer units.

Who this is for: Mechanic shops, fleet maintenance managers and owner-operators running Detroit Diesel ISX engines who need a reliable aftermarket replacement for fuel-water separation and engine filtration. If you maintain DD13, DD15 or DD16 powertrains and seek compatible cross-referenced parts with a warranty and post-sale support, this GXFCY kit provides a cost-effective aftermarket option—just confirm cross-reference numbers and installation steps before fitting.