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Mercury Exhaust Cover Gasket 414991
The Mercury 414991 Exhaust Cover Gasket is a genuine OEM gasket used on Mercury 2-cylinder 2-stroke outboards. It provides a precise seal between the exhaust cover and engine block to prevent exhaust and cooling water leaks.
Fitment Overview
This OEM gasket replaces earlier Mercury part numbers 41499 and 92332. These part numbers are used across Mercury 2-cylinder engines in the 15HP through 25HP range, including both recreational and commercial-duty models.
OEM diagram lookup confirms this gasket is used on engines that share the same exhaust cover design and sealing surface.
Compatibility
| Brand | Model | Engine Type |
|---|---|---|
| Mercury | 15 HP / Super 15 | 2-Cylinder 2-Stroke |
| Mercury | 18XD | 2-Cylinder 2-Stroke |
| Mercury | 20 HP / 20XD / 20 Jet | 2-Cylinder 2-Stroke |
| Mercury | 25 HP / 25XD | 2-Cylinder 2-Stroke |
| Mercury | 15 / 25 Sea Pro | 2-Cylinder 2-Stroke |
| Mercury | 15 / 25 Marathon | 2-Cylinder 2-Stroke |
These engines share a common exhaust cover design where this gasket is required.
Example Model Applications
- Mercury 15HP and Super 15 outboards
- Mercury 18XD models
- Mercury 20HP, 20XD, and 20 Jet models
- Mercury 25HP and 25XD outboards
- Mercury Sea Pro and Marathon commercial engines
These are common applications. Always verify using your engine serial number or OEM diagram.
Fits These Serial Ranges
This gasket is used across multiple Mercury 2-cylinder engine generations and does not follow a single serial-number break.
Important: Confirm compatibility by matching your existing gasket to 414991, 41499, or 92332.
Looking for a more cost-effective aftermarket option?
View Sierra 18-2716 Exhaust Cover Gasket
Part Numbers and Cross References
| Type | Part Number |
|---|---|
| Mercury OEM | 414991 |
| Mercury OEM | 41499 |
| Mercury OEM | 92332 |
| Aftermarket | 18-2716 (Sierra) |
What This Part Is Used For
This gasket seals the exhaust cover to the engine block, ensuring proper containment of exhaust gases and maintaining correct cooling system flow.
- Provides OEM-quality sealing between exhaust cover and block
- Prevents exhaust and water leaks
- Maintains proper cooling flow through the engine
- Ensures reliable long-term performance
Using a genuine OEM gasket ensures proper fitment and durability for long-term engine reliability.
System Function and Connections
- System Type: Exhaust system
- Component Type: Exhaust cover gasket
- Location: Between exhaust cover and engine block
FAQ
Is this a genuine Mercury part?
Yes, this is an OEM Mercury gasket.
What engines does this fit?
It fits Mercury 15HP through 25HP 2-cylinder 2-stroke outboards.
Does this replace older part numbers?
Yes, it replaces 41499 and 92332.
Why choose OEM?
OEM parts are manufactured to exact specifications for proper fit and long-term reliability.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 (continental U.S.).
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Part Numbers
414991, 41499, 92332, Mercury 25HP gasket, Mercury 2-cylinder exhaust gasket, OEM Mercury gasket
41499
414991
92332
31870
75909
414751
414752
414753
414754
414755
414756
414757
414758
892158
92331
414993
414994
414995
892157
Sierra 18-2716 Exhaust Cover Gasket
The Sierra 18-2716 Exhaust Cover Gasket is a replacement gasket designed for Mercury 2-cylinder 2-stroke outboards. This gasket seals the exhaust cover to the engine block, preventing exhaust and water leaks while maintaining proper engine performance.
Fitment Overview
This gasket replaces Mercury OEM part numbers 414991, 41499, and 92332. These OEM numbers are used across Mercury 2-cylinder outboards in the 15HP through 25HP range, including standard and commercial-duty models.
OEM diagram lookup confirms this gasket is used on multiple engine variations that share the same exhaust cover design and mounting pattern.
Compatibility
| Brand | Model | Engine Type |
|---|---|---|
| Mercury | 15 HP / Super 15 | 2-Cylinder 2-Stroke |
| Mercury | 18XD | 2-Cylinder 2-Stroke |
| Mercury | 20 HP / 20XD / 20 Jet | 2-Cylinder 2-Stroke |
| Mercury | 25 HP / 25XD | 2-Cylinder 2-Stroke |
| Mercury | 15 / 25 Sea Pro | 2-Cylinder 2-Stroke |
| Mercury | 15 / 25 Marathon | 2-Cylinder 2-Stroke |
These engines share a common exhaust cover design where this gasket is used.
Example Model Applications
- Mercury 15HP and Super 15 outboards
- Mercury 18XD models
- Mercury 20HP, 20XD, and 20 Jet models
- Mercury 25HP and 25XD outboards
- Mercury Sea Pro and Marathon commercial models
These are common applications. Always verify using your OEM part number or engine diagram.
Fits These Serial Ranges
This gasket is used across multiple Mercury 2-cylinder engine generations and does not follow a single serial-number break.
Important: Confirm compatibility by matching your existing gasket to 414991, 41499, or 92332.
Looking for the OEM Mercury version of this gasket?
View OEM Mercury Exhaust Cover Gasket 414991
Part Numbers and Cross References
| Type | Part Number |
|---|---|
| Sierra | 18-2716 |
| Mercury OEM | 414991 |
| Mercury OEM | 41499 |
| Mercury OEM | 92332 |
What This Part Is Used For
This gasket seals the exhaust cover to the engine block, preventing exhaust gas and cooling water leaks while maintaining proper engine function.
- Seals exhaust cover to engine block
- Prevents exhaust and water leaks
- Maintains proper cooling flow
- Supports overall engine efficiency
A failed gasket can lead to exhaust leakage, overheating, or reduced engine performance.
System Function and Connections
- System Type: Exhaust system
- Component Type: Exhaust cover gasket
- Location: Between exhaust cover and engine block
FAQ
What engines does this gasket fit?
It fits Mercury 15HP through 25HP 2-cylinder 2-stroke outboards, including commercial models.
What does this replace?
It replaces Mercury part numbers 414991, 41499, and 92332.
Does this fit Sea Pro or Marathon models?
Yes, it fits Sea Pro and Marathon versions using this exhaust cover design.
How do I confirm fitment?
Match your existing gasket to the OEM numbers or verify using your engine diagram.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 (continental U.S.).
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Part Numbers
18-2716, 414991, 41499, 92332, Mercury 25HP gasket, Mercury 2-cylinder exhaust gasket
414991
92332
8475252
10-2404
18-2610
18-2611
18-2611
18-2611
18-2611
37690
37690
521-27
812775
812775A01
8127751
8127754
8127755
10-2403
139581
139581
139581
18-2621
18-2621
37640
37640
521-25
18-2610
18-2610
18-2611
37680
521-26
812775
812775A01
8127751
8127754
8127754
8127755
18-2741
37650
37650
43004009
430041
430042
430043
430045
430047
521-21
18-0642
19050
190502
190503
190505
37560
521-31
521-32
9-60051
521-22
830240
830240
855874
855874001