Description
Quicksilver 18458Q4 — Water‑Separating Fuel Filter Kit with Blue Sensor
The Quicksilver 18458Q4 kit features a water‑separating fuel filter element rated at 10 microns and includes a blue screw‑in sensor to alert of water in the fuel. It is designed to be mounted under the cowl on Mercury/Mariner V6 EFI or DFI outboards made in 1996 and newer. With epoxy internal coating and corrosion‑resistant external paint, it delivers durability in marine environments. :contentReference[oaicite:0]{index=0}
Applications
Used on all Mercury and Mariner V‑6 EFI / DFI outboard engines manufactured from 1996 onward. Always confirm fitment, procedures, and specifications in your owner’s or service manual before purchase or installation. :contentReference[oaicite:1]{index=1}
Shipping & Returns
Fast processing and shipping from our marine parts warehouse. 30-day returns on unopened, unused items. Review our Refund Policy for full details.
Key Facts
- BU Part ID: 18458Q4
- Brand: Quicksilver / Mercury Marine
- Country of Origin: CN
- UPC: 745061038233
- Category / Subcategory: Parts / Fuel Filters
- Filtration Rating: 10 micron
- Sensor: Blue screw‑in water warning sensor
- Packaged Length: 4.25″
- Packaged Height: 3.2″
- Packaged Weight: 0.058 lb
- Supersedes Part #: 184585, 18458A4
What’s Included
- 1 × water‑separating filter element
- 1 × blue water sensor (screw‑in type)
- 1 × O‑ring seal
Service Notes
- Replace annually or every 100 engine hours, whichever comes first.
- Inspect sensor contact and ensure it’s properly seated to detect water in fuel.
- Do not over-tighten sensor — torque per OEM spec.
- Use clean fuel and bleed air before running the engine after replacement.