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Oil Drain Plug Gasket – Fits Suzuki DF25-350 (Replaces 09168-12012)

Regular price $16.99
Shipping calculated at checkout.

Oil Drain Plug Gasket – Fits Suzuki DF25-350 (Replaces 09168-12012) is backordered and will ship as soon as it is back in stock.


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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 Oil Drain Plug Gasket – Fits Suzuki DF25-350 Outboards (Replaces 09168-12012) ensures a perfect seal for Suzuki Marine Outboards from 25 to 350 HP (4-Stroke engines, 2000–Present). It is designed to meet or exceed OEM specifications for reliable, leak-free performance during oil changes.

This part directly replaces Suzuki 09168-12012, JLM Marine 0916812012, Sierra 18-0902, Mallory 9-60104, GLM 31200, and WSM 607-12.

  • Installs on the lower unit or engine oil pan.
  • Made from corrosion-resistant aluminum for durability.
  • Designed as a single-use crush washer for a dependable, leak-free seal.

Part Number Matrix

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

Brand Part Number
Suzuki 09168-12012
JLM Marine 0916812012
Sierra 18-0902
Mallory 9-60104
GLM 31200
WSM 607-12

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Suzuki Outboards, this gasket fits a wide range of DF series 4-stroke models from 2000 to present.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Suzuki DF25 25 4-Stroke 2000–Present 09168-12012
Suzuki DF30 30 4-Stroke 2000–Present 09168-12012
Suzuki DF40 40 4-Stroke 2006–2010 09168-12012 Late 2006-2010 models
Suzuki DF40A 40 4-Stroke 2010–Present 09168-12012
Suzuki DF50 50 4-Stroke 2006–2010 09168-12012 Late 2006-2010 models
Suzuki DF50A 50 4-Stroke 2010–Present 09168-12012
Suzuki DF50AV 50 4-Stroke 2014–Present 09168-12012
Suzuki DF60 60 4-Stroke 2007–Present 09168-12012
Suzuki DF60A 60 4-Stroke 2010–Present 09168-12012
Suzuki DF60AV 60 4-Stroke 2014–Present 09168-12012
Suzuki DF70 70 4-Stroke 2007–Present 09168-12012
Suzuki DF70A 70 4-Stroke 2009–Present 09168-12012
Suzuki DF80A 80 4-Stroke 2009–Present 09168-12012
Suzuki DF90 90 4-Stroke 2000–Present 09168-12012
Suzuki DF90A 90 4-Stroke 2009–Present 09168-12012
Suzuki DF100 100 4-Stroke 2000–Present 09168-12012
Suzuki DF115 115 4-Stroke 2010–2012 09168-12012
Suzuki DF115A 115 4-Stroke 2013–Present 09168-12012
Suzuki DF115SS 115 4-Stroke 2013–Present 09168-12012
Suzuki DF140 140 4-Stroke 2010–2012 09168-12012
Suzuki DF140A 140 4-Stroke 2013–Present 09168-12012
Suzuki DF150 150 4-Stroke 2006–Present 09168-12012
Suzuki DF150A 150 4-Stroke 2016–Present 09168-12012
Suzuki DF150SS 150 4-Stroke 2006–Present 09168-12012
Suzuki DF175 175 4-Stroke 2006–Present 09168-12012
Suzuki DF175A 175 4-Stroke 2016–Present 09168-12012
Suzuki DF200 200 4-Stroke 2006–Present 09168-12012
Suzuki DF200A 200 4-Stroke 2016–Present 09168-12012
Suzuki DF225 225 4-Stroke 2011–Present 09168-12012
Suzuki DF250 250 4-Stroke 2011–Present 09168-12012 V6 models
Suzuki DF250AP 250 4-Stroke 2011–Present 09168-12012
Suzuki DF250SS 250 4-Stroke 2011–Present 09168-12012
Suzuki DF300 300 4-Stroke 2011–Present 09168-12012
Suzuki DF300A 300 4-Stroke 2011–Present 09168-12012
Suzuki DF300AP 300 4-Stroke 2011–Present 09168-12012
Suzuki DF300B 300 4-Stroke 2017–Present 09168-12012
Suzuki DF350A 350 4-Stroke 2017–Present 09168-12012

Technical Specs

Product Type
Oil Drain Plug Crush Gasket/Washer
Installation
Lower Unit/Engine Oil Pan
Housing Material
Aluminum
Housing Color
Silver
Fitting Type
Crush Washer
Thread Size
M14
Other Technical Attributes
Corrosion resistant
Package Dimensions
135.9 × 98 × 15 mm (5.35 × 3.86 × 0.59 in)
Weight
0.018 kg (0.04 lbs)

What’s in the Box

  • 1 x Oil Drain Plug Gasket (09168-12012)

Installation Notes

  1. Position a suitable drain pan under the engine oil drain plug.
  2. Carefully remove the oil drain plug using the correct size socket wrench.
  3. Remove and discard the old crush washer gasket. Clean any residue from the plug and the sealing surface on the oil pan.
  4. Place the new gasket over the drain plug threads.
  5. Re-install the drain plug by hand to prevent cross-threading, then tighten it to the torque specified in your engine's service manual. Do not overtighten.
  6. Refill the engine with the manufacturer-recommended oil, then run the engine briefly and check for any leaks around the drain plug.

Troubleshooting & FAQ

How do I know if this gasket fits my Suzuki outboard?

The best way to confirm fitment is to check your engine model and year against the compatibility chart above. You can also match your existing part number to the interchange list in the Part Number Matrix.

Is this gasket reusable?

No. This is a single-use crush washer. It is designed to deform when tightened to create a perfect seal. Reusing it will likely result in an oil leak.

How often should I replace this gasket?

You should use a new gasket every time you perform an oil change to ensure a reliable, leak-free seal.

What are the signs of a failing drain plug gasket?

The most common sign is a visible oil drip or seepage from the engine or lower unit drain plug area. If you notice an oil spot under your motor, a worn gasket may be the cause.

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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