17400-94820 17400-94821 Maintenance Service Kit for Suzuki DF25A DF30A | JLM Marine

17400-94820 17400-94821 Maintenance Service Kit for Suzuki DF25A DF30A

This comprehensive 100-hour maintenance service kit is designed for Suzuki 4-stroke outboard engines, specifically the DF25A and DF30A models from 2015 onward. Engineered to meet OEM specifications, this kit delivers reliable performance for routine service intervals, helping to maintain your engine's efficiency and longevity on the water.

This aftermarket kit directly replaces Suzuki part numbers 17400-94820, 17400-94821, 17400-94823, and 17400-94824, consolidating all essential components needed for a complete maintenance cycle in one convenient package.

• Complete water pump repair kit included for optimal cooling system performance
• Contains genuine-spec fuel filter, oil filter, and zinc anodes for comprehensive protection
• All gaskets, seals, and hardware provided for a hassle-free service

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Suzuki owners, you can review exploded diagrams here to verify part numbers: Suzuki Parts Diagrams & Catalog.

Technical Specifications

Package Contents

This complete maintenance kit includes the following components:

• 1 × Water Pump Repair Kit 17400-94L21 (includes the following sub-components):
  • 1 × Water Pump Plate (17471-94L00)
  • 1 × Water Pump Gasket (17472-94L00)
  • 1 × Water Pump Key (17462-94L00)
  • 1 × Water Pump Impeller (17461-94L00)
• 1 × Cotter Pin (09204-03003)
• 1 × Drain Gasket (09168-12017)
• 2 × Drain Gasket (59178-97J00)
• 1 × Fuel Filter (15410-87L00)
• 1 × Oil Filter (16510-87J01)
• 5 × Zinc Anode (55321-87J00)
• 1 × O-ring (09280-22019)

Installation Guide

1. Prepare your workspace: Ensure the engine is off, cooled down, and positioned securely. Gather all necessary tools including screwdrivers, wrenches, and a drain pan.
2. Drain the engine oil: Remove the drain plug and allow old oil to fully drain into a suitable container. Replace the drain gaskets (09168-12017 and 59178-97J00) during reassembly.
3. Replace the oil filter: Remove the old oil filter (16510-87J01) using an oil filter wrench. Lightly oil the new filter's gasket and install hand-tight, then tighten an additional 3/4 turn.
4. Install the new fuel filter: Disconnect fuel lines carefully and replace the old fuel filter with the new one (15410-87L00). Ensure proper fuel flow direction as marked on the filter body.
5. Remove the lower unit: Disconnect shift linkage and remove mounting bolts to access the water pump housing. Be careful to support the lower unit weight during removal.
6. Disassemble the old water pump: Remove the water pump housing and extract the old impeller, plate, and gaskets. Clean all mating surfaces thoroughly to ensure proper seal.
7. Install the new water pump components: Install the water pump key (17462-94L00), then lubricate and install the new impeller (17461-94L00) with blades oriented correctly. Add the plate (17471-94L00) and gasket (17472-94L00).
8. Reassemble the lower unit: Reinstall the water pump housing with new gaskets and reattach the lower unit to the engine. Torque all bolts to manufacturer specifications.
9. Replace zinc anodes: Remove old corroded zinc anodes and install all five new anodes (55321-87J00) in their designated locations. Ensure good metal-to-metal contact for proper galvanic protection.
10. Install the O-ring: Replace the O-ring (09280-22019) in its designated location, ensuring it is properly seated and lubricated.
11. Refill with fresh engine oil: Add the manufacturer-recommended oil type and quantity. Check the oil level with the dipstick and adjust as needed.
12. Test and inspect: Start the engine and check for leaks around all replaced components. Verify proper water pump operation by observing the telltale water stream.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my Suzuki outboard?
A: This kit is specifically designed for Suzuki DF25A and DF30A 4-stroke models from 2015 and newer. Check your engine's model plate or consult the Suzuki parts diagrams linked above to verify compatibility with part numbers 17400-94820 or 17400-94821.

Q: How often should I perform this 100-hour maintenance service?
A: Suzuki recommends this comprehensive service every 100 operating hours or annually, whichever comes first. If you operate in saltwater, harsh conditions, or at high RPM frequently, consider servicing more often to ensure optimal engine protection.

Q: What are the signs that my water pump impeller needs replacement?
A: Common symptoms include weak or no water flow from the telltale outlet, engine overheating, reduced cooling system performance, or visible damage to the impeller blades. Regular replacement at 100-hour intervals prevents unexpected failures.

Q: Can I reuse the old gaskets and seals during installation?
A: No, always replace all gaskets, seals, and O-rings with the new components provided in this kit. Reusing old gaskets can lead to leaks, improper sealing, and potential engine damage.

Q: Why does this kit include five zinc anodes?
A: Zinc anodes protect your engine's metal components from galvanic corrosion, especially in saltwater environments. This kit provides all the anodes needed for complete coverage on DF25A and DF30A models, ensuring comprehensive corrosion protection.

Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.