Cylinder Head Gasket – Fits Suzuki DT55/DT65 3-Cylinder Outboards (Replaces 11141-94720)
Cylinder Head Gasket – Fits Suzuki DT55/DT65 3-Cylinder Outboards (Replaces 11141-94720) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Worry-free returns
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
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Cylinder Head Gasket – Fits Suzuki DT55/DT65 3-Cylinder Outboards (...
Product Details
This high-quality aftermarket Cylinder Head Gasket is engineered for a precise fit on Suzuki DT55 and DT65 3-cylinder, 2-stroke outboard engines manufactured between 1988 and 1999. It serves as a direct-fit replacement, ensuring reliable sealing and engine performance.
It provides a direct interchange for Suzuki part numbers 11141-94701, 11141-94701-H17, 11141-94710, 11141-94720, and 11141-94720-000, as well as aftermarket equivalents from GLM (36250) and Sierra (18-3820).
- Installation Method: Direct replacement
- Material: Durable multi-layer composite
- Compatibility: J-X engine series
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Suzuki | 11141-94701 |
| Suzuki | 11141-94701-H17 |
| Suzuki | 11141-94710 |
| Suzuki | 11141-94720 |
| Suzuki | 11141-94720-000 |
| GLM | 36250 |
| Sierra | 18-3820 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This part is designed for specific Suzuki outboard models.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Suzuki | DT55 | 55 | 2-Stroke | 1988–1999 | 11141-94720 | Multiple supersession part numbers |
| Suzuki | DT65 | 65 | 2-Stroke | 1988–1999 | 11141-94720 | J-X engine variant |
Technical Specs
- Product Type
- Cylinder Head Gasket
- Installation
- Direct replacement
- Fuel Type
- Gasoline (Petrol)
- Material
- Multi-layer composite
- Dimensions
- 36.0 cm L x 15.0 cm W x 2.0 cm H
- Weight
- 0.10 kg (0.22 lb)
- Warranty
- Typically 1-year limited warranty (varies by seller)
- Other Technical Attributes
- J-X engine series compatible
What’s in the Box
- 1 x Cylinder Head Gasket (11141-94720)
Installation Notes
- Disconnect the battery and completely drain the engine's cooling system.
- Remove the engine cover and any components obstructing access to the cylinder head, such as ignition coils or wiring harnesses.
- Carefully loosen and remove the cylinder head bolts following the reverse of the manufacturer's specified tightening sequence to prevent head warpage.
- Lift the cylinder head straight up from the engine block and set it aside. Remove the old head gasket.
- Thoroughly clean both the cylinder head and engine block mating surfaces. Ensure all old gasket material, sealant, and debris are removed.
- Position the new cylinder head gasket on the engine block, aligning it with the dowel pins. Do not use sealant.
- Carefully place the cylinder head back onto the block.
- Lightly oil the threads of the new head bolts and install them finger-tight.
- Torque the head bolts to the manufacturer's specified values using the correct sequence, typically in multiple stages. This is critical for a proper seal.
- Reinstall all components that were previously removed.
- Refill the cooling system with the appropriate coolant mixture.
- Reconnect the battery, start the engine, and carefully inspect for any coolant, fuel, or exhaust leaks around the head.
Troubleshooting & FAQ
How do I know if my cylinder head gasket is failing?
Common signs of a blown head gasket include persistent engine overheating, a loss of power or compression, milky or discolored engine oil (resembling a milkshake), and excessive white smoke from the exhaust after the engine has warmed up.
Is this gasket compatible with all DT55/DT65 models?
This gasket is specifically for the 3-cylinder, 2-stroke versions of the Suzuki DT55 and DT65 from model years 1988 through 1999. Always confirm your engine's specifications before purchasing.
Do I need to use gasket sealant during installation?
No. This multi-layer composite gasket is designed to be installed dry. Applying sealants can interfere with its ability to create a proper seal and may cause premature failure.
What torque specifications should I use for the head bolts?
Torque specifications and the tightening sequence are critical and model-specific. You must consult the official service manual for your exact Suzuki engine model to ensure a reliable and safe installation.
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.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
