Water Pump Gasket – Fits Suzuki DT Outboards (Replaces 17472-98503)
Water Pump Gasket – Fits Suzuki DT Outboards (Replaces 17472-98503) is backordered and will ship as soon as it is back in stock.
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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
Water Pump Gasket – Fits Suzuki DT Outboards (Replaces 17472-98503)
Product Details
This is a direct fit Water Pump Gasket designed for Suzuki DT 2-stroke outboard engines from 5 HP to 15 HP, covering models from 1980–1988 and later years that share the same water pump design. It ensures a reliable seal to prevent leaks and maintain cooling system efficiency.
It serves as a direct replacement for Sierra part number 18-0477-9 and Suzuki OEM part numbers 17472-98501 and 17472-98503.
- Engineered for direct-fit installation.
- Made from a durable compound for sealing in marine environments.
- Includes one water pump gasket for a complete replacement.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By | Notes |
|---|---|---|---|
| Suzuki | 17472-98501 | 17472-98503 | |
| Suzuki | 17472-98503 | ||
| Sierra | 18-0477-9 | Aftermarket cross-reference |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This gasket is verified for the following Suzuki outboard models.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Suzuki | DT5 | 5 | 2-Stroke | 1980–1988+ | 17472-98503 | Supersedes 17472-98501 |
| Suzuki | DT6 | 6 | 2-Stroke | 1980–1988+ | 17472-98503 | Multiple model variants (DT6LT, DT6ST, etc.) |
| Suzuki | DT8 | 8 | 2-Stroke | 1980–1988+ | 17472-98503 | Multiple model variants (DT8LT, DT8ST, etc.) |
| Suzuki | DT9.9 | 9.9 | 2-Stroke | 1980–1988+ | 17472-98503 | Based on cross-reference data |
| Suzuki | DT15 | 15 | 2-Stroke | 1980–1988+ | 17472-98503 | Based on cross-reference data |
Technical Specs
- Product Type
- Water Pump Gasket
- Installation
- Direct fit replacement
- Housing Material
- Temperature and pressure resistant compound
- Dimensions
- 6.0 cm × 7.5 cm × 0.25 cm (2.36 in × 2.95 in × 0.10 in)
- Weight
- 0.03 kg (0.07 lbs)
- Operating Temperature
- Designed for marine cooling system temperatures
- Other Technical Attributes
- Designed for marine environment sealing
What’s in the Box
- 1 x Water Pump Gasket (17472-98503)
Installation Notes
- Ensure the engine is off and cool, and disconnect the spark plug leads for safety.
- Place the outboard in a suitable position to access and remove the lower unit (gearcase).
- Unbolt and carefully separate the lower unit from the engine's driveshaft housing.
- Locate and unbolt the water pump housing cover.
- Remove the old gasket, taking care not to gouge the metal surfaces. Clean both mating surfaces thoroughly to remove any old sealant or gasket material.
- Position the new gasket onto the clean, dry surface, ensuring all bolt holes align perfectly.
- Reinstall the water pump housing and tighten bolts to the manufacturer's specified torque.
- Reassemble the lower unit to the outboard, reconnect everything, and test the engine in water, checking for proper water flow from the tell-tale outlet.
Troubleshooting & FAQ
How do I know if this gasket fits my Suzuki model?
This gasket is confirmed for Suzuki DT models including 5, 6, 8, 9.9, and 15 HP from the 1980–1988+ era. The best way to ensure a match is to verify that your service manual calls for OEM part number 17472-98503 or 17472-98501.
What are the signs of a bad water pump gasket?
Common symptoms include the engine overheating at idle or low speeds, a weak or non-existent water stream from the "tell-tale" outlet, or visible water leakage around the lower unit's seams, especially near the water pump housing.
Should I use sealant with this gasket?
Generally, this type of gasket is designed to be installed dry. However, always consult your engine's service manual. If sealant is recommended, use a marine-grade, non-hardening type applied in a very thin, even layer.
How often should I replace my water pump gasket?
It is best practice to replace the water pump gaskets whenever you replace the impeller, which is typically recommended every 100-200 hours of operation or at least once per season, regardless of hours used.
Is there a difference between OEM and this aftermarket gasket?
This is an aftermarket part designed to meet or exceed OEM specifications. It provides a cost-effective solution without compromising on the quality of materials or the precision of the fit required for a reliable seal.
Can I install this gasket myself?
Yes, replacing a water pump gasket is a common maintenance task for those with mechanical experience and the correct tools. However, if you are not confident, we recommend professional installation to prevent damage and ensure safety.
What is your warranty and return policy?
This part is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard window for items that are unused and in their original condition. See our full policy page or contact us for instructions.
How fast is shipping?
We ship worldwide, with typical transit times of 5–15 days for most regions. Standard shipping is free for most orders, and expedited options are available at checkout where applicable.
Safety & Important Info
- Verify images and specifications against your original part before purchase. If anything differs—even if your model appears compatible—do not order.
- This is an aftermarket replacement component, not an OEM part.
- Professional installation is recommended for safety and optimal performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and rigorously tested for real-world marine conditions.
- Fast Global Fulfillment — We offer free standard delivery to most regions, with an average transit time of 5–15 days.
- Manufacturer-Direct Value — By working directly with manufacturers, we provide fair pricing without compromising on materials or quality control.
Payment & Security
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