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Cylinder Head Gasket – Fits Suzuki DF90/DF100/DF115 Outboards (Replaces 11141-90J01)

Sale price $69.99 Regular price $111.00
Shipping calculated at checkout.

Cylinder Head Gasket – Fits Suzuki DF90/DF100/DF115 Outboards (Replaces 11141-90J01) 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 aftermarket Cylinder Head Gasket is engineered for Suzuki 90 HP, 100 HP, and 115 HP 4-stroke outboards manufactured between 2001 and 2011 (models K1-K11). It also fits select Johnson/Evinrude 90–115 HP 4-stroke models that utilize a Suzuki powerhead, ensuring broad compatibility for engine repairs and overhauls.

It serves as a direct replacement for Suzuki part numbers 11141-90J01 and 11141-90J00, and Johnson/Evinrude equivalents 5033639 and 5034645.

  • Installation Location: Engine Top End
  • Meets OEM specifications for a reliable seal and performance.
  • Designed for use in marine gasoline engines.

Part Number Matrix

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

Brand Part Number Notes
Suzuki 11141-90J01 Supersedes part number 11141-90J00
Johnson/Evinrude 5033639
Johnson/Evinrude 5034645

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Suzuki engines, this part fits DF90, DF100, and DF115 models designated K1-K11 from 2001 to 2011.

For Johnson/Evinrude, this part is compatible with models equipped with Suzuki-built powerheads in the 90-115 HP range.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Suzuki DF90 90 4-Stroke 2001–2011 11141-90J01 Supersedes 11141-90J00
Suzuki DF100 100 4-Stroke 2001–2011 11141-90J01 Supersedes 11141-90J00
Suzuki DF115K1-K11 115 4-Stroke 2001–2011 11141-90J01 Supersedes 11141-90J00
Johnson/Evinrude [Models with Suzuki powerheads] 90-115 4-Stroke 5033639/5034645 Cross-reference to Suzuki engines

Technical Specs

Product Type
Cylinder Head Gasket
Installation
Engine Top End
Fuel Type
Gasoline
Housing Material
Composite Gasket Material
Dimensions
28.5" L × 28.5" W × 0.5" H
Warranty
Varies by retailer (typically 1 year)
Other Technical Attributes
OEM specification replacement

What’s in the Box

  • 1 x Cylinder Head Gasket (Replaces 11141-90J01)

Installation Notes

  1. Disconnect the battery and relieve fuel system pressure before beginning work.
  2. Drain the engine coolant and engine oil completely.
  3. Remove the intake and exhaust manifolds and any other components obstructing access to the cylinder head.
  4. Following the service manual, loosen and remove the cylinder head bolts in the specified reverse order.
  5. Carefully lift the cylinder head away from the engine block. Avoid prying, which can damage surfaces.
  6. Thoroughly clean both the engine block and cylinder head mating surfaces. Ensure all traces of the old gasket and any sealant are removed.
  7. Position the new head gasket correctly on the engine block, ensuring it aligns with all dowels and bolt holes.
  8. Carefully lower the cylinder head back into place.
  9. Install new or verified head bolts and torque them to the manufacturer's specification in the correct sequence and stages.
  10. Reassemble all previously removed components.
  11. Refill the engine with fresh oil and coolant.
  12. Before starting the engine, check for any leaks and double-check all connections.

Troubleshooting & FAQ

How do I know if this gasket fits my engine?

This gasket is designed for Suzuki 90, 100, and 115 HP four-stroke outboards from 2001–2011 (models K1-K11). It also serves as a direct cross-reference for Johnson/Evinrude parts 5033639 and 5034645 used on their Suzuki-powered four-strokes. Always verify your specific engine model and year against our compatibility table before ordering.

What are the signs of a failed cylinder head gasket?

Common symptoms include engine overheating, a noticeable loss of power, white-colored smoke from the exhaust (indicating coolant is burning), milky or foamy engine oil from coolant contamination, and performance issues like rough idling or misfires.

Is any sealant required when installing this gasket?

No, this gasket is designed to be installed dry. Modern composite gaskets create a seal through compression. Applying additional sealants can interfere with this process, potentially causing leaks or premature failure. Always follow the instructions in your engine's official service manual.

What is the recommended replacement interval for a head gasket?

Cylinder head gaskets are typically only replaced when they fail or during a major engine overhaul (e.g., rebuilding the top end). They are not considered a routine maintenance item with a specific service life.

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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