Marine replacement parts designed to keep fuel lines clear and outboards running smoothly. Spend less time troubleshooting clogs and more time on the water. Is compatibility with Mariner 30–90HP engines and a two-filter pack the right fit for routine servicing with AISEN Fuel Filter?
⚡ At a Glance
- • Filtration Efficiency: In-line configuration for 5/16 in. ID fuel line, helping intercept debris before it reaches the engine
- • Best for: Owners of Mariner 30–90HP 3-cylinder 2-stroke outboard engines needing direct-fit replacements
- • Not ideal for: Engines with different fuel line diameters or non-Mariner specific fittings
In-line fuel filter designed for 5/16 in. inner-diameter fuel lines and 8mm connections. Supplied as a two-pack and listed as replacements for multiple Mariner part numbers.
Engine protection - with in-line filter compatible with 5/16 in. ID fuel line
In-line filters sit directly in the fuel line to intercept particles and prevent blockages before fuel reaches the engine. Compatibility with 5/16 in (8mm) inner-diameter hose ensures a secure connection for many standard marine fuel lines.
Reduced risk of fuel-line blockages during normal operation, supporting steadier engine running and fewer interruptions while afloat.
Simple maintenance - thanks to listed replacement part numbers and standard fit
Product descriptions include a range of Mariner replacement part numbers, making identification straightforward when ordering spares. Standard connections mean common tools are sufficient for removal and refit.
Faster servicing and easier sourcing of replacements, cutting downtime during routine maintenance.
Handy spare supply - with two filters included in the package
Package contains a pair of identical in-line filters so one can be fitted and one kept as an immediate spare. Having a spare avoids delays if a filter needs swapping while away from a workshop.
Immediate spare on hand for quick swaps, ideal for planned servicing or emergency replacements on the water.
✨ The 4 Key Reasons for AISEN Fuel Filter
- Robust construction - Durable build resists wear and handles regular marine use
- Versatile fit - Suits a range of routine repair and retrofit scenarios
- Trusted quality - Well-made component that matches standard maintenance needs
- Simple installation - Quick inline swap with basic tools and minimal fuss
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Brand: AISEN
- Product Type: In-Line Fuel Filter
- Fuel Line Inner Diameter: 5/16 in (8 mm)
- Compatible Engines: Mariner 30hp–90hp, 3-cylinder, 2-stroke
❓ Frequently Asked Questions
Q: Will this fit my Mariner 50hp outboard?
A: Compatibility lists Mariner 30–90HP 3-cylinder 2-stroke outboard engines, so a 50hp engine in that range should be supported if it uses a 5/16 in. ID fuel line.
Q: What fuel line size do these filters take?
A: Designed for 5/16 in. inner-diameter fuel line, which is equivalent to 8mm, so match that hose size for a secure fit.
Q: How many filters come in the pack?
A: The package includes two fuel filters, allowing one to be fitted and one kept as a spare.
🏆 Our Verdict
Suitable for Mariner owners and marine technicians who need direct-fit replacement fuel filters. Compatibility with multiple Mariner part numbers and a straightforward in-line design make routine servicing faster and more reliable. Cost-effective for service kits, with an immediate spare included to reduce downtime and add long-term convenience.
