Oil Seal – Fits Suzuki DT9.9/DT15 Outboard Motors (Replaces 09289-30008, 09289-30L01)

$12.99 $20.00

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Product Details

This is a direct replacement Oil Seal for Suzuki DT9.9 and DT15 2-Stroke (9.9–15 HP) outboard motors manufactured between 1983–2004. It is designed to be installed on the top side of the crankshaft to prevent fluid leaks and maintain engine integrity.

It directly replaces Suzuki OEM part numbers 09289-30008 and 09289-30L01.

Installation: Mounts on the top side of the crankshaft.
Design: Rotary shaft seal profile designed for effective fluid separation in marine environments.
Construction: Features a metal cage with a durable rubber coating and double primary sealing lips with integrated springs for a secure fit.

Part Number Matrix

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

Brand	Part Number	Superseded By	Notes
Suzuki	09289-30008	09289-30L01	Original part number.
Suzuki	09289-30L01		Current part number.

Engine & Model Compatibility

Confirm your engine model and year in the table below to ensure correct fitment.

This oil seal is designed for specific Suzuki 2-stroke models. Please verify your exact model code and production year before ordering.

Brand	Model	Rated HP	Stroke	Years	OEM Part No.	Notes
Suzuki	DT9.9K	9.9	2-Stroke	1986–2000	09289-30008	Superseded by 09289-30L01
Suzuki	DT15K	15	2-Stroke	1986–2000	09289-30008	Superseded by 09289-30L01
Suzuki	DT9.9K1-K4	9.9	2-Stroke	2001–2004	09289-30L01
Suzuki	DT15K1-K4	15	2-Stroke	2001–2004	09289-30L01
Suzuki	DT9.9ELD	9.9	2-Stroke	1983	09289-30008
Suzuki	DT9.9ESD	9.9	2-Stroke	1983	09289-30008
Suzuki	DT9.9MLD	9.9	2-Stroke	1983	09289-30008
Suzuki	DT9.9MSD	9.9	2-Stroke	1983	09289-30008
Suzuki	DT15ELD	15	2-Stroke	1983	09289-30008
Suzuki	DT15ESD	15	2-Stroke	1983	09289-30008
Suzuki	DT15MLD	15	2-Stroke	1983	09289-30008
Suzuki	DT15MSD	15	2-Stroke	1983	09289-30008
Suzuki	DT9.9ELE	9.9	2-Stroke	1984	09289-30008
Suzuki	DT9.9ESE	9.9	2-Stroke	1984	09289-30008
Suzuki	DT9.9MLE	9.9	2-Stroke	1984	09289-30008
Suzuki	DT9.9MSE	9.9	2-Stroke	1984	09289-30008
Suzuki	DT15ELE	15	2-Stroke	1984	09289-30008
Suzuki	DT15ESE	15	2-Stroke	1984	09289-30008
Suzuki	DT15MLE	15	2-Stroke	1984	09289-30008
Suzuki	DT15MSE	15	2-Stroke	1984	09289-30008

Technical Specs

Product Type: Crankshaft Oil Seal
Installation Location: Top side of crankshaft
Dimensions: 30 x 52 x 10 mm (Shaft x External x Thickness)
Weight: 0.01 kg (10 g)
Housing: Metal cage with rubber coating
Seal Profile: SW (dual-lip with integrated springs)
Design: Rotary shaft seal

What's in the Box

1 x Oil Seal (Replaces 09289-30008 / 09289-30L01)

Installation Notes

Ensure the engine is off and cool. Disconnect the battery and spark plug wires for safety.
Remove the flywheel and any other components obstructing access to the upper crankshaft seal.
Carefully pry out the old oil seal using a seal puller, taking care not to scratch the crankshaft or housing surfaces.
Thoroughly clean the seal housing and the crankshaft shaft to remove any old sealant, debris, or oil residue.
Apply a thin layer of marine grease or clean engine oil to the inner and outer surfaces of the new seal.
Position the new seal with the spring-side facing the engine internals. Press it in squarely using a seal driver or a socket of matching diameter until it is seated flush.
Reassemble all components in the reverse order of removal.
After reassembly, run the engine briefly and inspect the area around the new seal for any signs of oil leakage.

Troubleshooting & FAQ

How do I know if this oil seal fits my Suzuki engine?

This seal fits specific Suzuki DT9.9 and DT15 2-stroke models from 1983–2004. The most reliable way to confirm fitment is to check the part number (09289-30008 or 09289-30L01) from your engine's service manual or by inspecting the old part. You can also use our compatibility table by matching your engine's model and year.

What are the common signs of a failing crankshaft oil seal?

A failing top crankshaft oil seal typically results in an oil leak visible around the top of the powerhead, often under the flywheel. You might notice oil residue, a drop in engine performance, or difficulty starting due to lost crankcase pressure. It's a critical component for maintaining two-stroke engine compression.

How often should this oil seal be replaced?

There is no fixed replacement interval for crankshaft oil seals. They should be inspected during any major engine service or powerhead rebuild. Replace the seal immediately if you notice any signs of leakage, hardening, or cracking.

Is there a difference between a single-lip and dual-lip (SW profile) seal?

Yes. This seal has a dual-lip (SW) profile. The primary lip keeps the lubricating fluid in, while the secondary (or dust) lip prevents external contaminants like dirt and water from entering. This design offers superior protection and longevity in harsh marine environments compared to single-lip seals.

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 and specifications against your original part before purchase. If anything differs—even if your model is listed as compatible—do not install.
This is an aftermarket replacement component, not an original equipment manufacturer (OEM) part.
Professional installation is strongly recommended for safety, proper function, and to prevent engine damage.

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