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Engine Holder Gasket – Fits Suzuki DF90/DF100/DF115/DF140 (Replaces 51211-90J22, 5037205)

Sale price $47.80 Regular price $76.00
Shipping calculated at checkout.

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 aftermarket Engine Holder Gasket provides a reliable seal for a wide range of Suzuki outboard motors. It is specifically designed for Suzuki DF90, DF100, DF115, DF140, and their corresponding A-series 4-stroke models manufactured from 2001 onward, as well as select OMC/Bombardier models.

This part serves as a direct cross-reference for Suzuki part numbers 51211-90J22 and 51211-90J21, and is an equivalent for OMC/Bombardier part number 5037205.

  • Installation Location: Mounts between the powerhead assembly and the engine holder (lower unit) to prevent exhaust and water leaks.

Part Number Matrix

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

Brand Part Number Superseded By
Suzuki 51211-90J21 51211-90J22
OMC/Bombardier 5037205

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Fits a wide range of Suzuki DF series 4-stroke outboards from 90HP to 140HP manufactured from 2001-present.

Also compatible with select OMC/Bombardier models that use part number 5037205.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Suzuki DF90 90 4-Stroke 2001–2013+ 51211-90J22 Superseded 51211-90J21
Suzuki DF100 100 4-Stroke 2001–2013+ 51211-90J22 Superseded 51211-90J21
Suzuki DF115 115 4-Stroke 2001–2013+ 51211-90J22 Superseded 51211-90J21
Suzuki DF140 140 4-Stroke 2001–2013+ 51211-90J22 Superseded 51211-90J21
Suzuki DF100A 100 4-Stroke 2013+ 51211-90J22
Suzuki DF115A 115 4-Stroke 2013–2021 51211-90J22
Suzuki DF140A 140 4-Stroke 2013–2021 51211-90J22
OMC/Bombardier 90 5037205
OMC/Bombardier 115 5037205
OMC/Bombardier 140 5037205

Technical Specs

Product Type
Engine Holder Gasket / Powerhead Base Gasket
Installation
Between powerhead and engine holder/lower unit
Dimensions
42.5 × 32.0 × 0.3 in (approx. 1080 × 813 × 8 mm)
Weight
0.2 lbs (0.09 kg)

What’s in the Box

  • 1 x Engine Holder Gasket (Replaces Suzuki 51211-90J22 / 51211-90J21)

Installation Notes

  1. Ensure the engine is off, cool, and the battery is disconnected.
  2. Remove the engine cowling and any other components obstructing access to the powerhead.
  3. Carefully unbolt and separate the powerhead from the engine holder.
  4. Remove the old gasket and meticulously clean both mating surfaces. All old material, oil, and corrosion must be removed for a proper seal.
  5. Position the new gasket correctly, ensuring all bolt holes are aligned.
  6. Reinstall the powerhead onto the engine holder.
  7. Tighten the bolts in the sequence and to the torque values specified in your engine's official service manual.
  8. Reassemble all previously removed components, reconnect the battery, and check for leaks upon starting the engine.

Troubleshooting & FAQ

What are the signs of a failing powerhead base gasket?

Common symptoms include water contaminating the engine oil (giving it a milky appearance), visible exhaust or water leaks from the seam between the powerhead and midsection, engine overheating, or a general loss of performance.

Should I use sealant with this gasket?

This gasket is designed for a dry-fit installation. Applying additional sealants can interfere with proper seating and may not be recommended by the engine manufacturer. Always consult your service manual for the final word on sealants.

My OMC/Bombardier engine isn't listed by model. How do I confirm fit?

This part directly cross-references to OMC/Bombardier part number 5037205. If your engine's service manual or original part number matches 5037205, this gasket is the correct replacement for your 90HP, 115HP, or 140HP model.

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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