Answer: For jet skis, choose a 1-1/8 inch bilge pump hose kit rated around 1100 GPH, with a thru-hull fitting, stainless clamps, and a kink-free hose. These features ensure reliable, fast water removal while staying compact and easy to install on a jet ski’s limited space. The following options are well-suited for different needs, from quick installations to more robust setups for frequent use.
| Product | Best For | |
|---|---|---|
| Seamaka Bilge Pump Kit | Budget-friendly, straightforward installs | Includes 12V pump, 6 ft hose, and thru-hull fitting with stainless clamps |
| Lounsweer 5 Pcs Kit | Balanced kit with longer hose | 750 GPH, corrugated hose resists kinking, through-hull fitting included |
| FILTERUP 1100 GPH Kit | High flow for faster drainage | Includes 6 ft hose, clamps, and hull fitting |
| HOONHERY 1100 GPH Kit | Durable materials, robust components | Corrosion-resistant pump, long hose, multiple clamps and fittings |
| Sejaede 1100 GPH Kit | Automatic operation with reliable flow | Built-in reed sensor, 6 ft hose, includes clamps and fitting |
Below are five carefully chosen products tailored for jet skis and other small personal watercraft. Each section covers what makes the kit suitable, who should buy it, and a practical limitation to consider.
Seamaka 1-1/8 Inch Bilge Pump Kit

The Seamaka kit targets riders seeking a simple, dependable setup for jet skis. It includes a 12V bilge pump rated around 1100 GPH, a 6 ft PVC hose, a 1-1/8 inch thru-hull fitting in ABS, and two stainless steel hose clamps. Best for riders who want a ready-to-install solution with minimal tools. It’s lightweight and corrosion-resistant, and the hose’s sleeveless, smooth inner bore reduces end leaks for stable flow. A limitation is that the hose length is fixed at 6 feet, which may require cutting for very compact installations.
Lounsweer 5 Pcs Bilge Pump Plumbing Kit

This kit suits jet ski owners who want a compact solution with extra flexibility. It provides a 750 GPH bilge pump, a long 1.8 m hose, two clamps, and a thru hull fitting. The hose features a corrugated, anti-kink design, and the pump body is moisture-resistant thermoplastic with a stainless steel shaft. Best for cost-conscious buyers who still want a durable setup. A potential drawback is that the higher GPH option is not included, so it’s a mid-range performance kit.
FILTERUP 1100 GPH Pump Kit

The FILTERUP kit targets jet skiers needing strong, reliable water removal. It includes a 1100 GPH 12V bilge pump, six feet of 1-1/8 inch hose, two clamps, a thru-hull fitting, and instructions. Best for boats and jet skis that experience frequent splashing or rough water. It offers wide marine compatibility and a robust flow. A limitation is that the kit emphasizes performance over ultra-compact size, so space on some jet ski compartments may be tight.
HOONHERY 12V 1100 GPH Kit

HOONHERY’s kit emphasizes resilience in harsh marine environments. It includes a 1100 GPH pump, a six-and-a-half-foot corrugated hose, two stainless steel hose clamps, U-bolt clamps, screws, and a hull drain fitting. Best for jet skiers who value long hose reach and secure fittings. It’s designed for durability and long service life. A potential limitation is the complexity of assembly due to multiple components, which may require careful alignment during installation.
Sejaede 1100 GPH Automatic Kit

Sejaede targets jet skiers seeking automation. The kit offers an automatic 12V bilge pump with a built-in reed sensor and an 1100 GPH capacity, plus a six‑foot hose, two stainless clamps, and a thru-hull fitting. Best for riders who want hands-off water removal and consistent drainage. A shortcoming is that automatic operation depends on correct sensor placement and may require baseline calibration for precise shutoff.
Buying Guide
What size hose do I need for a jet ski bilge pump?
Most jet skis use 1-1/8 inch hoses. Choose a kit with that hose size to ensure compatibility with common thru-hull fittings and clamps. If your jet ski has limited space, a shorter hose with a compact pump may fit better but ensure the flow rate remains adequate for rapid drainage.
How important is GPH for a jet ski?
Higher GPH (around 1100) drains more quickly, which is useful after splashes or water entering at high speeds. For occasional use in calm conditions, a 750 GPH kit can be sufficient and more compact.
What about hose construction and kink resistance?
Look for a kink-resistant, corrugated hose with a smooth inner bore. This design reduces flow restrictions and leaks at connection ends, preserving steady drainage even when hoses bend around bends in the hull.
Do I need a thru-hull fitting and clamps?
Yes. A thru-hull fitting provides a reliable seal through the hull, while stainless clamps secure the hose to the fitting. Both reduce the risk of leaks and hull water intrusion during operation.
Should I choose automatic or manual pumps?
Automatic pumps with reed sensors offer hands-off operation, which is convenient on jet skis. Manual or non-automatic pumps require a float switch or direct monitoring and are simpler but require user action to operate.
FAQ
- What is a typical hose length for jet skis? – About 6 feet is common, but longer hoses are available for flexible routing.
- Can these kits be used on other small watercraft? – Yes, they are suitable for boats, kayaks, inflatables, and similar vessels with compatible hose sizes.
- Is stainless steel clamps necessary? – They improve corrosion resistance and keep hoses secure in rough conditions.
- Will these kits work with 12V batteries on jet skis? – Yes, all listed pumps are designed for standard 12V marine power systems.
- How do I know if a thru-hull fitting will fit my hull? – Check the hull thickness and material, and ensure the fitting diameter matches the hose.
- Are there any safety concerns installing bilge pumps on small craft? – Install per manufacturer instructions, ensure cables are secured, and avoid blocking exhaust or other critical systems.
Buying a bilge pump kit for a jet ski involves balancing flow rate, hose length, fitment, and ease of installation. The products above offer varied options across price and complexity, enabling a tailored choice for your vessel’s size and typical riding conditions.