Gasket – Fits Mercury Quicksilver 50-60 HP (Replaces 27-47190)
Gasket – Fits Mercury Quicksilver 50-60 HP (Replaces 27-47190) 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).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Gasket – Fits Mercury Quicksilver 50-60 HP (Replaces 27-47190)
Product Details
This replacement Gasket for the Ignition Driver Cap is designed for Mercury 50 HP to 60 HP, 2-stroke outboard engines manufactured between 1968 and 1975. It ensures a proper seal, protecting the ignition components from moisture and debris.
This part directly replaces OEM part number Quicksilver 27-47190 and offers interchange with GLM 30310.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury | 27-47190 |
| Quicksilver | 27-47190 |
| GLM | 30310 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Mercury | 500 (4 Cyl.) | 50 | 2-Stroke | 1968–1975 | 27-47190 |
| Mercury | 650 (4 Cyl.) | 65 | 2-Stroke | 1968–1975 | 27-47190 |
Technical Specs
- Product Type
- Gasket, Ignition Driver Cap
- Dimensions
- 14.5" L x 10.5" W x 0.1" H
- Warranty
- 30 days
What’s in the Box
- 1 x Gasket (Replaces 27-47190)
Installation Notes
- Disconnect the boat's battery before starting work.
- Locate the ignition driver assembly and remove the cap. Note the orientation of surrounding components.
- Carefully remove the old gasket. Use a plastic scraper to gently clear any residue from the mating surfaces.
- Ensure both the cap and its base are clean and dry before proceeding.
- Position the new gasket, aligning it with screw holes and component cutouts.
- Reinstall the ignition driver cap, tightening the fasteners in a star pattern to the manufacturer's specified torque to ensure an even seal.
- Reconnect the battery and test engine operation.
Troubleshooting & FAQ
How do I confirm this gasket fits my specific Mercury outboard?
This gasket is for Mercury 500 (50 HP) and 650 (65 HP) 4-cylinder, 2-stroke models from 1968–1975. Please verify your model and year using the "Engine & Model Compatibility" table before ordering.
What are symptoms of a failed ignition driver cap gasket?
A faulty gasket can lead to moisture intrusion, causing corrosion on ignition components. You might experience engine misfires, rough idling, or difficulty starting. Visual inspection may reveal a cracked, brittle, or flattened gasket.
Is any sealant required during installation?
Generally, this type of gasket is installed dry. Using sealants can sometimes cause the gasket to slip out of place during tightening. Always follow the service manual for your specific engine model.
How often should this gasket be replaced?
It is best practice to replace the gasket anytime the ignition driver cap is removed for inspection or service. Gaskets can compress, dry out, or become brittle over time, losing their sealing ability.
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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