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Maintenance Kit – Fits Suzuki DF4/DF5/DF6 4-Stroke Outboards (Replaces 17400-91830, 17400-91860, 17400-91891)

Regular price $68.29
Shipping calculated at checkout.

Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This complete Maintenance Kit – Fits Suzuki DF4/DF5/DF6 4-Stroke Outboards provides all the essential components for your 100-hour or annual service. It is designed for Suzuki 4 HP, 5 HP, and 6 HP four-stroke outboard models manufactured between 2003 and 2016.

It serves as a direct replacement for Suzuki OEM part numbers 17400-91860, 17400-91830, and 17400-91891, covering multiple generations of these reliable engines.

  • Installation: Engineered for a direct OEM replacement fit.
  • Service Interval: Contains key parts for the 100-hour/annual service schedule.
  • Core Components: Includes an oil filter, NGK spark plug, and a full set of replacement gaskets and O-rings.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number Notes
Suzuki 17400-91860 Original kit for 2003–2010 models
Suzuki 17400-91830 Updated kit for 2011–2016 models
Suzuki 17400-91891 Latest version for 2017+ models

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This kit is designed exclusively for the specified Suzuki outboard models. Please verify your exact model and year before ordering.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Suzuki DF4 4 4-Stroke 2003–2010 17400-91860 Original kit for early models
Suzuki DF5 5 4-Stroke 2003–2010 17400-91860 Original kit for early models
Suzuki DF6 6 4-Stroke 2003–2010 17400-91860 Original kit for early models
Suzuki DF4 4 4-Stroke 2011–2016 17400-91830 Updated kit for mid-generation models
Suzuki DF5 5 4-Stroke 2011–2016 17400-91830 Updated kit for mid-generation models
Suzuki DF6 6 4-Stroke 2011–2016 17400-91830 Updated kit for mid-generation models
Suzuki DF4A 4 4-Stroke 2017+ 17400-91891 Latest version for current models
Suzuki DF6A 6 4-Stroke 2017+ 17400-91891 Latest version for current models

Technical Specs

Product Type
Outboard Maintenance Kit
Installation
Direct OEM Replacement
Fuel Type
Gasoline
Dimensions
11.5 × 10 × 7 in (292.1 × 254 × 177.8 mm)
Weight
5 lbs (2.3 kg)
Fitting Type
Direct OEM Replacement
Service Interval
100-hour/annual service interval

What’s in the Box

  • 1 x Oil Filter
  • 1 x Spark Plug (NGK CPR6EA-9)
  • 1 x Set of gaskets and O-rings

Installation Notes

  1. Ensure the engine is off, cool, and secured in an upright position. Disconnect the spark plug lead for safety.
  2. Place a drain pan under the lower unit and remove the engine oil drain plug to drain the old oil completely.
  3. Remove the old oil filter. Lightly lubricate the gasket of the new filter with clean engine oil before installing it.
  4. Reinstall the oil drain plug with a new gasket if provided. Tighten to the manufacturer-specified torque.
  5. Refill the engine with the correct type and amount of new engine oil as specified in your owner's manual.
  6. Remove and replace the spark plug, ensuring it is gapped correctly (NGK CPR6EA-9).
  7. Replace any other gaskets or O-rings as needed for your specific service items.
  8. Wipe up any spills, check oil level, and reconnect the spark plug lead.

Troubleshooting & FAQ

How do I know which part number this kit replaces?

This single kit is designed to replace three sequential Suzuki part numbers: 17400-91860 (for 2003-2010 models), 17400-91830 (for 2011-2016 models), and 17400-91891 (for 2017+ models). You can confirm compatibility by matching your engine's model and year in our compatibility table.

What is the recommended service interval for using this kit?

This kit is intended for your outboard's 100-hour service or annual maintenance, whichever comes first. Regular service is crucial for engine longevity and performance.

Does this kit include gearcase lubricant?

No, this maintenance kit focuses on engine service essentials like the oil filter, spark plug, and gaskets. Gearcase lubricant and drain plug gaskets must be purchased separately.

My engine is hesitating. Can this kit fix it?

It might. Many performance issues are caused by old spark plugs, clogged filters, or poor lubrication. Performing the 100-hour service with this kit resolves the most common maintenance-related problems. If issues persist, further diagnostics may be needed.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost?

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns?

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

  • Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
  • This is an aftermarket replacement, not an OEM component.
  • Professional installation is recommended for safety and performance.

About Sea Sierra

  • Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
  • Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
  • Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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