Cylinder Head Gasket – Fits Suzuki DF40/DF50 4-Stroke Outboards (Replaces 11141-87J02)

$50.00 $80.00

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Product Details

This is a direct replacement Cylinder Head Gasket – Fits Suzuki DF40/DF50 4-Stroke Outboards (Replaces 11141-87J02). It is designed for Suzuki 40-50 HP 4-stroke engines made between 1999–2010 and select Johnson/Evinrude BRP 40-50 HP 4-stroke models using 87J series engines. This component ensures a precise seal between the cylinder head and the engine block.

This part provides a direct interchange for Suzuki part numbers 11141-87J00, 11141-87J01, and 11141-87J02, as well as Johnson/Evinrude references 5031293 and 5034353.

Engineered for direct replacement installation.
Constructed from a durable multi-layer steel/composite.
Specifically designed for 4-stroke gasoline outboard engines.

Part Number Matrix

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

Brand	Part Number	Notes
Suzuki	11141-87J00 / 11141-87J01	Superseded by 11141-87J02
Suzuki	11141-87J02	Current direct replacement
Johnson/Evinrude	5031293 / 5034353	Equivalent part for specified 87J series engines

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Suzuki applications, this part fits DF40 and DF50 models from 1999 to 2010.

For Johnson/Evinrude, this part is specific to BRP models equipped with 87J series four-stroke powerheads.

Brand	Model	Rated HP	Stroke	Years	OEM Part No.	Notes
Suzuki	DF40	40	4-Stroke	1999–2010	11141-87J02	Supersedes 11141-87J00, 11141-87J01
Suzuki	DF50	50	4-Stroke	1999–2010	11141-87J02	Supersedes 11141-87J00, 11141-87J01
Johnson/Evinrude	40 HP (87J Series)	40	4-Stroke		5031293, 5034353	BRP models only
Johnson/Evinrude	50 HP (87J Series)	50	4-Stroke		5031293, 5034353	BRP models only

Technical Specs

Product Type: Cylinder Head Gasket
Installation: Direct replacement
Fuel Type: Gasoline
Housing Material: Multi-layer Steel/Composite
Dimensions: 36.5 (L) x 24.5 (W) x 0.4 (H)
Other Technical Attributes: For 4-stroke engines only

What’s in the Box

1 x Cylinder Head Gasket (Replaces 11141-87J02)

Installation Notes

Disconnect the battery and drain the engine's cooling system completely.
Remove the engine cover, flywheel, and any components obstructing access to the cylinder head (e.g., intake/exhaust manifolds, fuel system).
Following the service manual's sequence, loosen and remove the cylinder head bolts in several passes.
Carefully lift the cylinder head off the engine block. Avoid using pry tools that could damage the mating surfaces.
Remove the old cylinder head gasket and any residual material.
Thoroughly clean both the cylinder head and engine block surfaces. Ensure they are completely flat, clean, and dry.
Position the new gasket correctly on the engine block, ensuring all passages align.
Carefully place the cylinder head back onto the block.
Install new or verified head bolts and tighten them in the correct sequence and to the specified torque values found in your engine's service manual. This is critical for a proper seal.
Reassemble all previously removed components in reverse order.
Refill the cooling system, check engine oil, and reconnect the battery.
Start the engine and check for any coolant, oil, or compression leaks around the head.

Troubleshooting & FAQ

How do I know if this gasket fits my engine?

Check the compatibility table on this page. Verify your engine's make, model, horsepower, and year range. It is essential to also cross-reference the OEM part number from your old gasket or service manual to ensure an exact match.

What are the common signs of a failed cylinder head gasket?

Symptoms of a bad head gasket include engine overheating, a loss of power or compression, water or coolant mixing with the engine oil (giving it a milky appearance), or white, sweet-smelling smoke from the exhaust.

Is any sealant needed when installing this gasket?

Generally, no. This is a multi-layer steel (MLS) or composite gasket designed to be installed dry. Applying sealants can interfere with its ability to seal correctly. Always follow the specific instructions in your engine's official service manual.

Can I reuse my old cylinder head bolts?

It is strongly recommended to use new cylinder head bolts. Many outboard engines use torque-to-yield (TTY) bolts that stretch during the initial installation and are not designed for reuse. Reusing them can lead to improper clamping force and premature gasket failure.

What is the recommended replacement interval?

A cylinder head gasket does not have a scheduled replacement interval. It should be replaced only when it fails or during a complete engine overhaul.

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.

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