Suzuki Outboard Maintenance Kit – Fits Suzuki DF8A/DF9.9A (Replaces 17400-99840, 17400-99841)
Suzuki Outboard Maintenance Kit – Fits Suzuki DF8A/DF9.9A (Replaces 17400-99840, 17400-99841) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Worry-free returns
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
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Suzuki Outboard Maintenance Kit – Fits Suzuki DF8A/DF9.9A (Replaces...
Product Details
This Suzuki Outboard Maintenance Kit is designed for scheduled service of Suzuki DF8A and DF9.9A 4-stroke outboard engines from 2010 to current model years. The kit provides all the essential components required for a complete 100-hour or annual service, ensuring your engine remains in top operating condition.
It serves as a direct replacement for Suzuki OEM part numbers 17400-99840 and 17400-99841.
- Installation is equivalent to a factory service kit.
- Includes all filters, gaskets, and anodes for a standard service.
- Engineered for use in fresh and saltwater environments.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By |
|---|---|---|
| Suzuki | 17400-99840 | 17400-99841 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Suzuki | DF8A | 8 HP | 4-Stroke | 2010–Current | 17400-99841 | Supersedes 17400-99840 |
| Suzuki | DF9.9A | 9.9 HP | 4-Stroke | 2010–Current | 17400-99841 | Supersedes 17400-99840 |
Technical Specs
- Product Type
- Maintenance Kit
- Installation
- OEM Service Kit
- Fuel Type
- Gasoline
- Dimensions
- 15.0 × 16.5 × 18.5 in (381 × 419.1 × 469.9 mm)
- Weight
- 32 oz (907 g)
What’s in the Box
- 1 x Water Pump Repair Kit
- 1 x Propeller Cotter Pin
- 2 x CPR6EA-9 Spark Plugs
- 1 x Engine Oil Filter
- 1 x Protection Anode Cover O-Ring
- 1 x Protection Anode
- 1 x Protection Zinc
- 1 x Engine Oil Drain Plug Gasket
- 2 x Lower Unit Drain Plug Gaskets
- 1 x Water Pump Housing Sleeve
- 1 x Fuel Filter
Installation Notes
- Consult your owner's manual for model-specific instructions and safety warnings.
- Disconnect the battery and secure the engine in a tilted position before beginning.
- Begin by draining the engine oil and lower unit gear lube, replacing the drain plug gaskets upon reassembly.
- Replace the engine oil filter and fuel filter.
- Access the lower unit to service the water pump, replacing the impeller, housing sleeve, and related gaskets.
- Replace the spark plugs, ensuring they are gapped correctly.
- Inspect and replace the protection anodes and their O-rings as needed.
- Refill the engine with the correct grade of oil and the lower unit with gear lube.
- Once assembled, reconnect the battery, start the engine, and verify oil pressure and water pump function via the tell-tale stream.
Troubleshooting & FAQ
How do I confirm this kit fits my engine?
This kit is specifically for Suzuki DF8A and DF9.9A models from 2010 to present. It will not fit DF9.9B or other models. Please verify your engine's model and year before ordering.
What is the difference between part 17400-99840 and 17400-99841?
Part number 17400-99841 is the direct successor to 17400-99840. They are functionally identical, but 17400-99841 is the latest version offered by the manufacturer.
How often should I use this maintenance kit?
For optimal performance and engine longevity, Suzuki recommends performing this service annually or every 100 hours of operation, whichever comes first.
What are the signs that my water pump needs service?
Common indicators of a failing water pump include the engine overheating, an intermittent or weak stream from the "tell-tale" water outlet, or a high-pitched whining sound from the lower unit.
Why does the kit include two different types of anodes?
The kit contains multiple anodes to protect different parts of your engine from galvanic corrosion. It's critical to replace all of them during service to ensure comprehensive protection.
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.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
