1740087L01 Water Pump Impeller Service Kit for Suzuki 4 Stroke

In this review the 1740087L01 water pump impeller service kit is evaluated for owners of Suzuki DF70A, DF80A and DF90A 4 stroke outboards. The bottom line: this kit is for boaters who want a complete, OEM-compatible rebuild option for the lower unit cooling system, providing the single biggest benefit of restoring reliable engine cooling without sourcing multiple parts separately. The reviewer found the kit follows Suzuki part numbers closely and includes the core components needed to replace a worn impeller and seals.

Key Features

• OEM Compatibility: The kit follows Suzuki marine part numbers 17400-87L00 through 17400-87L04, which helps ensure fit with 2009 and newer DF70A, DF80A and DF90A outboards.
• Complete Rebuild Parts: It contains the impeller, wear plate, water pump case sleeve, pump housing gasket and water pump case seal, so users get all primary wear parts in one purchase.
• Impeller and Hardware Included: The package includes the water pump impeller and the impeller shaft key, allowing straightforward replacement of moving components that determine cooling performance.
• Lower Unit Focus: Designed specifically for the lower unit cooling system on 70-90 HP Suzuki 4 stroke motors, making it relevant for seasonal maintenance and impeller replacement schedules.
• Installation Guidance: The kit notes that installers should lubricate with silicone grease, glycerine or dish soap when installing, which reduces the chance of damaging the impeller during fitment.

Who It's For

This kit is best for owner-operators and marine mechanics who maintain 2009 and newer Suzuki DF70A, DF80A or DF90A 4 stroke outboards and who prefer to replace the impeller, seals and related wear parts as a set. It suits routine preventative maintenance, repowering projects and on-water repairs where original-style components are wanted for fit and function.

It is not for users with older or non-Suzuki lower units, nor for someone who only needs a single seal or a different impeller specification; those buyers should source the exact part they require. Also, installation requires basic mechanical skill and common tools, so complete novices may prefer professional service.

Pros & Cons

Pros

• Complete set of wear parts restores the pump housing and impeller in one repair, reducing downtime.
• Matches multiple Suzuki OEM numbers which simplifies parts selection for the compatible models listed.
• Customers report that the impeller fits well and performs effectively when installed correctly.

Cons

• Installation lubricant is not included, so buyers must supply silicone grease, glycerine or dish soap separately.
• Kit is specific to 2009+ DF70A/DF80A/DF90A lower units and will not fit other engine families without verification.

Specifications

Compatible Models	Suzuki DF70A, DF80A, DF90A (2009 & newer)
Included Impeller Part	Water pump impeller (17461-87E121 referenced)
Included Seals and Gaskets	Water pump case seal and pump housing gasket (17416-99E10, 17472-87L00)
Wear Plate	Pump wear plate (17471-87L001)
Additional Hardware	Impeller shaft key (09420-04009) and insert cup
OEM Reference Numbers	17400-87L00, 17400-87L01, 17400-87L02, 17400-87L02-000, 17400-87L03, 17400-87L04

Our Verdict

The 1740087L01 impeller service kit is a practical, cost-effective choice for owners of 70-90 HP Suzuki 4 stroke outboards who need a reliable lower unit cooling rebuild. It bundles the impeller, wear plate, seals and gasket for a straightforward replacement and aligns with Suzuki part numbers, making it good value for maintenance-minded boaters who perform their own service or work with a mechanic.

Frequently Asked Questions

Will this kit fit my DF90A from 2011?
Yes; the kit is specified for 2009 and newer DF70A, DF80A and DF90A models and lists Suzuki OEM numbers that match those years.

Does the kit include the lubricant needed for installation?
No; installation lubricant such as silicone grease, glycerine or dish soap is recommended but not included with the kit.

Are all necessary seals and the impeller shaft key included?
Yes; the package contains the water pump impeller, impeller shaft key, wear plate, pump housing gasket and water pump case seal.