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Exhaust Cover Gasket – Fits Suzuki DT20/DT25/DT30 2-Stroke Outboards (Replaces 14151-96311, 14151-96310)

Sale price $19.99 Regular price $31.00
Shipping calculated at checkout.

Exhaust Cover Gasket – Fits Suzuki DT20/DT25/DT30 2-Stroke Outboards (Replaces 14151-96311, 14151-96310) is backordered and will ship as soon as it is back in stock.


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 high-quality Exhaust Cover Gasket provides a reliable seal for Suzuki DT series 2-stroke outboard engines, including 20 HP, 25 HP, and 30 HP models manufactured from 1986 to 2011. It is engineered from durable, asbestos-free materials to withstand high temperatures and ensure leak-free performance.

This component is a direct replacement for Suzuki OEM part numbers 14151-96311, 14151-96310, and 14151-96300, ensuring a perfect fit and function.

  • Engineered for direct fit replacement.
  • Constructed from high-temperature resistant, asbestos-free material.
  • Designed specifically for 2-stroke gasoline outboard engines.

Part Number Matrix

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

Brand Part Number
Suzuki 14151-96311
Suzuki 14151-96310
Suzuki 14151-96300

Engine & Model Compatibility

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

Brand Model Rated HP Stroke Years OEM Part No.
Suzuki DT20 20 2-Stroke 1986–2000 14151-96311/14151-96310
Suzuki DT25 25 2-Stroke 1986–2011 14151-96311/14151-96310
Suzuki DT30 30 2-Stroke 1986–2011 14151-96311/14151-96310

Technical Specs

Product Type
Exhaust Cover Gasket
Installation
Direct fit replacement
Fuel Type
Gasoline (2-stroke)
Material
Asbestos-free material
Dimensions
Approximately 0.4 cm × 19.0 cm × 22.0 cm
Weight
0.05 kg (0.11 lb)
Warranty
Varies by seller: 3 months to 1 year
Other Technical Attributes
High-temperature resistant sealing material

What’s in the Box

  • 1 x Exhaust Cover Gasket (Replaces 14151-96311/14151-96310)

Installation Notes

  1. Ensure the engine is completely cool and disconnect the battery for safety.
  2. Access and remove the engine's exhaust cover by undoing its mounting bolts.
  3. Carefully take off the old gasket. Thoroughly clean both the engine block and cover surfaces, removing all residue.
  4. Position the new gasket, making sure it aligns perfectly with the bolt holes.
  5. Re-install the exhaust cover and tighten the bolts in a crisscross pattern to the manufacturer's specified torque.
  6. After reassembly, run the engine and check for any exhaust or water leaks around the cover.

Troubleshooting & FAQ

How do I know if my exhaust cover gasket needs replacement?

Signs of a failing gasket include visible exhaust or water leaks around the cover, a noticeably louder or sputtering engine sound, reduced engine performance, or overheating issues.

Can I reuse my old gasket?

No. Gaskets like this are designed for one-time use as they compress to create a seal. Reusing an old gasket will likely result in a poor seal and leaks. Always replace it when the component is removed.

What is the difference between part numbers 14151-96311, 14151-96310, and 14151-96300?

These OEM numbers represent official revisions or supersessions of the same part over time. This aftermarket gasket is designed to be a direct cross-reference, replacing all three numbers with the same fit and function.

Should I use sealant with this gasket?

Generally, these gaskets are designed to be installed dry. Applying additional sealant is not typically necessary or recommended unless explicitly required by your engine’s service manual.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9001 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

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