Gasket Manifold – Fits Mercury Marine, Tohatsu, Johnson, Evinrude 8–9.9 HP (Replaces Mercury: 853525001, 27-853525001; Evinrude/Johnson/OMC: 5041276; Tohatsu: 3V1-02104-0, 3V1021040, 3V1021040M)
Gasket Manifold – Fits Mercury Marine, Tohatsu, Johnson, Evinrude 8–9.9 HP (Replaces Mercury: 853525001, 27-853525001; Evinrude/Johnson/OMC: 5041276; Tohatsu: 3V1-02104-0, 3V1021040, 3V1021040M) 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
Gasket Manifold – Fits Mercury Marine, Tohatsu, Johnson, Evinrude 8...
Product Details
This aftermarket Gasket Manifold – Fits Mercury Marine, Tohatsu, Johnson, Evinrude 8–9.9 HP is designed for various 8 and 9.9 HP 4-stroke marine engines, providing a reliable seal for the intake manifold. It is engineered as a direct replacement part, ensuring proper fit and function for consistent engine performance.
It directly replaces Mercury Marine part numbers 853525001 and 27-853525001, Evinrude/Johnson/OMC part number 5041276, and Tohatsu part numbers 3V1-02104-0, 3V1021040, and 3V1021040M.
- Manufactured as a high-quality aftermarket component to exacting standards.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury Marine | 853525001 |
| Mercury Marine | 27-853525001 |
| Evinrude/Johnson/OMC | 5041276 |
| Tohatsu | 3V1-02104-0 |
| Tohatsu | 3V1021040 |
| Tohatsu | 3V1021040M |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Mercury Marine | 8 & 9.9 | 4-Stroke | 853525001/27-853525001 | Direct replacement | |
| Tohatsu | MFS8/MFS9.8 HP | 8 & 9.8 | 4-Stroke | 3V1-02104-0/3V1021040/3V1021040M | Direct replacement |
| Tohatsu | F6, F8 & F9.8 Intake parts | 3V1-02104-0/3V1021040/3V1021040M | Direct replacement |
Technical Specs
- Product Type
- Gasket, Manifold
- Weight
- 0.01 lbs (0.005 kg)
- Product Dimensions
- 20.0" L x 14.0" W x 0.5" H
- Other Technical Attributes
- Aftermarket product
What’s in the Box
- 1 x GASKET MANIFOLD (PAF8-05000009)
Installation Notes
- Disconnect the negative battery cable and shut off the fuel supply.
- Carefully detach any hoses and sensors connected to the intake manifold.
- Remove the mounting bolts and lift the intake manifold away from the engine.
- Remove the old gasket and thoroughly clean both mating surfaces, ensuring they are free of any old material or debris.
- Position the new gasket correctly, aligning it with the mounting holes.
- Reinstall the intake manifold and tighten the bolts to the manufacturer's specified torque and sequence.
- Reconnect all hoses and sensors, restore the fuel supply, and reconnect the battery.
Troubleshooting & FAQ
How do I know if this manifold gasket will fit my engine?
This gasket is compatible with specific 8 HP and 9.9 HP 4-stroke models from Mercury Marine, Tohatsu, and Johnson/Evinrude. Please check the Part Number Matrix and Engine Compatibility table on this page. Cross-reference your engine's model and the OEM part number to ensure a correct fit.
What are the signs of a failing intake manifold gasket?
Common symptoms include a rough idle, engine misfires, poor acceleration, reduced fuel economy, or a "check engine" light. You might also hear a vacuum leak (a hissing sound) from the engine bay. A visual inspection may reveal coolant or oil leaks around the manifold.
Can I reuse my old manifold gasket?
No. Intake manifold gaskets are single-use components designed to crush and create a seal. Reusing an old gasket will likely result in an improper seal, leading to vacuum or fluid leaks and poor engine performance. Always install a new gasket whenever the manifold is removed.
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
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