KEMSO Intank Fuel Pump for Sea-Doo DI & 4Tec Models - High Flow

In this review the KEMSO Intank Fuel Pump is assessed for Sea-Doo DI and 4Tec models from the late 1990s through 2021. The bottom line: this pump is for owners who need a clear upgrade in flow and a backed warranty, since it offers up to 200LPH versus the original 60-80LPH and includes a serialized body with a lifetime guarantee. It is especially relevant for anyone running higher-demand engines or looking for a reliable US-based support channel staffed by technicians in the United States.

Key Features

• High flow: Supports up to 200LPH to provide stronger fuel delivery for demanding Sea-Doo applications compared with the original 60-80LPH units.
• Fuel compatibility: Designed to run on gasoline or ethanol so it can be used with common fuel blends used in personal watercraft.
• Bypass valve: Bypass valve set at 125.8 psi, higher than the original standard, which helps maintain steady pressure under load.
• Lifetime warranty: Serialized fuel pump body guarantees a lifetime warranty, providing long-term protection if a failure occurs.
• US-based support: Kemso support is provided by USA technicians, which simplifies troubleshooting and replacement logistics.

Who It's For

This pump is best for Sea-Doo owners with DI GTX, RX, LRV, XP, GTI, RXP, RXT, Wake PRO, Spark and GTR models spanning model years listed; it suits riders who want more flow for modified setups or to reduce starvation at high RPM. It also fits users who value a strong warranty and local technical support in the United States.

Those who should look elsewhere include riders who prioritize an exact factory-spec replacement for noise or fit reasons without higher output, and anyone concerned about long-term durability risks based on mixed customer reports should weigh warranty coverage before upgrading.

Pros & Cons

Pros

• Significantly increased flow for improved fuel delivery under high demand.
• Compatible with gasoline and ethanol, offering flexible fuel options.
• Serialized unit with a lifetime warranty and USA-based technical support for easier warranty service.
• Bypass valve set above original spec to help sustain pressure.

Cons

• Fitment has mixed reports; some customers found alignment issues with the pump housing.
• Some users reported durability problems with failures occurring within months, so reliability varies in practice despite the warranty.

Specifications

Compatibility	Sea-Doo DI, GTX, RX, LRV, XP, GTI, RXP, RXT, Wake PRO, Spark, GTR (1998-2021 where listed)
Maximum Flow	Up to 200LPH
Original Flow (for comparison)	Approximately 60-80LPH
Bypass Valve	Set at 125.8 psi
Fuel Type	Gasoline or Ethanol
Support	USA-based technical support
Warranty	Serialized body with lifetime warranty

Our Verdict

The KEMSO Intank Fuel Pump is a sensible upgrade for Sea-Doo owners who need higher flow and value a lifetime warranty and US-based support; it delivers clear performance advantages over stock pumps. Potential buyers should confirm fit for their specific hull and accept that some users have reported early failures, which makes the warranty an important part of the value proposition.

Frequently Asked Questions

Will this pump work with ethanol blends?
Yes. The unit is designed for gasoline or ethanol use.

How much more flow does this provide than stock?
The pump supports up to 200LPH versus the original 60-80LPH, providing a substantial increase in flow.

What if the pump fails early?
Each unit is serialized and covered by a lifetime warranty, and Kemso provides USA-based technical support to handle replacements or troubleshooting.