Cylinder Head Gasket – Fits Suzuki DT5, DT6, DT8 (Replaces 11141-98130)
Cylinder Head Gasket – Fits Suzuki DT5, DT6, DT8 (Replaces 11141-98130) 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
Cylinder Head Gasket – Fits Suzuki DT5, DT6, DT8 (Replaces 11141-98...
Product Details
This high-quality Cylinder Head Gasket is engineered for Suzuki 2-stroke outboard engines ranging from 5 to 8 HP, manufactured between 1983 and 2002. It serves as a reliable, direct-fit replacement to restore a perfect seal between the cylinder head and the engine block, ensuring optimal compression and performance.
It provides a direct interchange for Suzuki part numbers 11141-98101, 11141-98110, 11141-98120, and 11141-98130, as well as Sierra 18-3807.
- Designed as a direct OEM-equivalent replacement.
- Crafted from durable composite gasket material for a lasting seal.
- Ensures proper compression and prevents coolant or oil leaks.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.
| Brand | Part Number | Notes |
|---|---|---|
| Suzuki | 11141-98130 | Primary replacement |
| Suzuki | 11141-98120 | Superseded by 11141-98130 |
| Suzuki | 11141-98110 | Superseded by 11141-98130 |
| Suzuki | 11141-98101 | Superseded by 11141-98130 |
| Sierra | 18-3807 | Aftermarket equivalent |
| Aftermarket | REC11141-98130 | Aftermarket equivalent |
Engine & Model Compatibility
Confirm your engine model and year in the table below to ensure accurate fitment.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Suzuki | DT5 | 5 HP | 2-Stroke | 1986–2000 | 11141-98130 | Supersedes 11141-98101, 11141-98110, 11141-98120 |
| Suzuki | DT6 | 6 HP | 2-Stroke | 1984–2002 | 11141-98130 | Fits Y-K2 models |
| Suzuki | DT8 | 8 HP | 2-Stroke | 1983–2002 | 11141-98130 | Fits G-Y (1986–2000) & Y-KS (2000–2002) models |
Technical Specs
- Product Type
- Cylinder Head Gasket
- Installation
- Direct replacement
- Gasoline
- Housing Material
- Composite gasket material
- Dimensions (L×W×H)
- 10.63 cm × 7.0 cm × 0.13 cm
- Weight
- 0.09 kg (0.2 lb)
What’s in the Box
- 1 × Cylinder Head Gasket (Replaces 11141-98130)
Installation Notes
For a successful installation, follow the torque specifications and sequence outlined in your engine’s official service manual. Below is a general guide:
- Disconnect the battery and drain the cooling system completely.
- Remove the cylinder head cover and any other components obstructing access to the head bolts.
- Loosen the cylinder head bolts in several passes, following the reverse of the tightening sequence specified by the manufacturer.
- Carefully lift the cylinder head from the engine block. Avoid using pry tools that could damage the mating surfaces.
- Remove the old head gasket. Thoroughly clean all residue from both the engine block and cylinder head surfaces.
- Position the new gasket correctly. Ensure it aligns with all bolt holes and passages without the use of sealants unless specified by the manual.
- Lower the cylinder head back into place over the dowels.
- Install and tighten the head bolts finger-tight. Use a torque wrench to tighten them in the correct sequence and to the manufacturer-specified torque values.
- Reinstall all components removed earlier, refill the cooling system, and reconnect the battery.
- After starting the engine, check for any coolant, oil, or compression leaks.
Troubleshooting & FAQ
How do I confirm this gasket fits my specific Suzuki outboard?
Verify your engine's model, horsepower, and year against the "Engine & Model Compatibility" chart on this page. For 100% certainty, match the OEM part number (11141-98130) listed in your service manual with our cross-reference table.
What are the common signs of a failed cylinder head gasket?
Symptoms of a blown head gasket include engine overheating, a noticeable loss of power, milky or frothy engine oil (indicating coolant contamination), white smoke from the exhaust, and bubbling in the radiator or coolant reservoir.
Do I need to apply a sealant to this gasket during installation?
This gasket is typically designed to be installed dry. Applying sealants can interfere with its ability to seal correctly and may cause premature failure. Always adhere to the procedures in your engine's official service manual.
Can I reuse my old head gasket?
No. Cylinder head gaskets are a one-time-use "crush" type part. Once compressed, they will not provide a reliable seal if reinstalled. Always use a new gasket whenever the cylinder head is removed.
What is the difference between an OEM and an aftermarket part?
This is an aftermarket replacement part, not sourced from the original equipment manufacturer (OEM). It is engineered to meet or exceed OEM specifications for fit, form, and function, offering comparable performance and reliability. All our parts are produced in an ISO 9002 certified facility and are subject to rigorous quality control.
How much is shipping and how long does it take?
We offer fast worldwide shipping, with most orders arriving within 5 to 15 days. Standard shipping is free to most locations. Expedited shipping options and their costs are available at checkout.
What is the warranty and return policy?
This product is covered by a 1-year warranty against any manufacturing defects under normal operational conditions. Should you encounter a problem, please contact our support team with your order number. Returns are accepted for unused items in their original packaging within our standard return period. Please see our policy page for full details.
Safety & Important Info
- Before purchasing, carefully verify all images and specifications against your existing part. If there are any discrepancies, do not order, even if your model is listed as compatible.
- This is an aftermarket replacement component, not an Original Equipment Manufacturer (OEM) part.
- Professional installation is strongly recommended to ensure safety, proper function, and engine longevity.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to precise OEM-level tolerances and rigorously tested for demanding real-world conditions.
- Fast Global Fulfillment — Enjoy free standard delivery to most regions worldwide, with typical transit times of just 5–15 days.
- Manufacturer-Direct Value — By working directly with manufacturers, we offer fair, transparent pricing without ever compromising on material quality or quality control.
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