Head Gasket – Fits Suzuki DT150/DT200 V6 2-Stroke Outboards (Replaces 11141-87D90)
Head Gasket – Fits Suzuki DT150/DT200 V6 2-Stroke Outboards (Replaces 11141-87D90) is backordered and will ship as soon as it is back in stock.
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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
Head Gasket – Fits Suzuki DT150/DT200 V6 2-Stroke Outboards (Replac...
Product Details
This high-quality Head Gasket is a direct-fit replacement for Suzuki 150–200 HP 2-Stroke V6 outboard engines from the 1986 model year. It’s engineered to meet or exceed OEM specifications, ensuring a reliable seal for optimal engine performance.
This part serves as a direct cross-reference for Suzuki part numbers 11141-87D01, 11141-87D60, 11141-87D61, and 11141-87D90, as well as Sierra 18-3825 and GLM 36200.
- Designed for a direct replacement installation
- Compatible with 2-Stroke gasoline engines
- Manufactured from durable composite and metal materials for a long service life
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Suzuki | 11141-87D01 |
| Suzuki | 11141-87D60 |
| Suzuki | 11141-87D61 |
| Suzuki | 11141-87D90 |
| Sierra | 18-3825 |
| GLM | 36200 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This part is compatible with the following Suzuki outboard models.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Suzuki | DT150SSG | 150 | 2-Stroke | 1986 | 11141-87D90 |
| Suzuki | DT150TCLG | 150 | 2-Stroke | 1986 | 11141-87D90 |
| Suzuki | DT150TCXG | 150 | 2-Stroke | 1986 | 11141-87D90 |
| Suzuki | DT200TCLG | 200 | 2-Stroke | 1986 | 11141-87D90 |
| Suzuki | DT200TCXG | 200 | 2-Stroke | 1986 | 11141-87D90 |
Technical Specs
- Product Type
- Cylinder Head Gasket
- Installation
- Direct replacement
- Fuel Type
- Gasoline (2-Stroke)
- Material
- Composite/Metal
- Weight
- 0.39 kg (0.86 lb)
- Product Dimensions
- 22" L x 7.0" W x 0.19" H
What’s in the Box
- 1 x Cylinder Head Gasket (Replaces 11141-87D90)
Installation Notes
Professional installation is highly recommended. Always refer to your engine's official service manual for detailed procedures, torque specifications, and safety warnings.
- Disconnect the battery and relieve any pressure from the fuel system.
- Drain the engine coolant completely.
- Remove any components obstructing access to the cylinder head, such as the intake and exhaust manifolds.
- Loosen the cylinder head bolts in several passes, following the reverse of the sequence specified in your service manual.
- Carefully lift the cylinder head from the engine block. Avoid prying, which can damage the mating surfaces.
- Remove the old head gasket. Thoroughly clean gasket residue from both the cylinder head and engine block surfaces using an appropriate solvent and a non-marring scraper.
- Position the new head gasket correctly on the engine block; ensure it is properly aligned with the dowel pins.
- Carefully lower the cylinder head back into place.
- Lubricate the threads of new or existing head bolts as per the manual and install them finger-tight.
- Tighten the head bolts in the correct sequence and to the specified torque values using a calibrated torque wrench. This is critical for a proper seal.
- Reassemble all previously removed components and reconnect all electrical connectors and hoses.
- Refill the cooling system, check for leaks, and reconnect the battery before starting the engine.
Troubleshooting & FAQ
How do I know if this head gasket fits my Suzuki outboard?
This gasket is specifically designed for 1986 Suzuki DT150 and DT200 V6 2-stroke outboard models. To ensure a perfect match, please verify your engine's model number and year against the compatibility chart provided on this page. If your model is not listed, this part may not fit.
What are the signs of a blown or failing head gasket?
Common symptoms of a failed head gasket include engine overheating, a noticeable loss of power or compression, white, sweet-smelling smoke from the exhaust (burnt coolant), milky or foamy engine oil, or bubbles in the coolant overflow tank. If you observe any of these signs, have your engine inspected immediately.
Is any sealant or adhesive required when installing this gasket?
No. This head gasket is an OEM-style replacement designed to be installed dry on clean, flat surfaces. Do not use any additional RTV silicone, sealants, or adhesives unless explicitly instructed by your engine's official service manual, as this can interfere with the seal and cause premature failure.
How often should a head gasket be replaced?
A head gasket is not a routine maintenance item with a fixed replacement interval. It is typically only replaced when it fails or during a complete engine rebuild. With proper installation and engine care, a quality gasket should last for many years.
What's the difference between an OEM part and an aftermarket part?
This listing is for an aftermarket replacement part, not an original equipment manufacturer (OEM) component. It has been engineered to meet or exceed OEM-level specifications using comparable materials. Our parts are manufactured in an ISO 9001 certified facility and are batch-inspected to ensure consistent quality and fitment.
What are your shipping speeds and costs?
We ship worldwide quickly, with a typical transit time of 5–15 days for most regions. Standard shipping is free on all orders. Expedited shipping options, if available for your location, will be presented at checkout for an additional fee.
What is your warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window, provided the item is unused and in its original packaging. Please see our full policy page or contact us for detailed instructions.
Safety & Important Info
- Verify images and specifications against your original part before purchasing. If any detail differs—even if your model appears on the compatibility list—do not order.
- This product is an aftermarket replacement part, not an OEM component. Brand names and part numbers are used for reference purposes only.
- Professional installation is strongly recommended for safety and to ensure proper performance. Failure to follow the manufacturer's service manual can result in engine damage.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and rigorously tested for demanding real-world conditions.
- Fast Global Fulfillment — We offer free standard delivery to most regions with an average transit time of 5–15 days.
- Manufacturer-Direct Value — By working directly with our manufacturing partners, we provide fair pricing without ever compromising on materials or quality control.
Payment & Security
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