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Pro Marine Cylinder Head Gasket
Mercury Mariner V6 2.4L 150-220HP Cylinder Head Gasket
The Pro Marine 246-1P Cylinder Head Gasket is an aftermarket replacement head gasket for Mercury and Mariner V6 2.4L two-stroke outboards. This gasket replaces Mercury OEM numbers 41246, 41246-1, 41246-2, 41247, 41247T01, and 96543.
This version is commonly used on 2.4L Mercury and Mariner 150HP through 220HP applications including XR4, 175HP, 200HP, and select high-performance 2.4L engines. Always verify the OEM gasket number before ordering.
Compatible Applications
The OEM number family for this gasket is tied to Mercury and Mariner 2.4L V6 applications. Published replacement listings commonly identify this gasket for Mercury / Mariner 150XR4, 175HP, 200HP, and 220HP 2.4L engines using the listed OEM numbers.
| Manufacturer | Application | Notes |
|---|---|---|
| Mercury / Mariner | 150 XR4 V6 2.4L | Commonly listed for 1988-1991 serial range B242885-C239552 |
| Mercury / Mariner | 175HP V6 2.4L | Commonly listed for 1984-1991 serial range 6618751-C239552 |
| Mercury / Mariner | 200HP V6 2.4L | Commonly listed for 1982 and 1983-1991 2.4L applications |
| Mercury / Mariner | 220HP V6 2.4L | Commonly listed for 1987-1988 serial range B117316 & up |
| Mercury / Mariner | 2.4L performance applications | May include select Bridgeport, Black Max, and oval-port 2.4L engines when OEM number matches |
This gasket is for Mercury / Mariner 2.4L V6 applications that use the listed OEM head gasket numbers. Mercury also produced 2.0L and 2.5L V6 engines that may use different head gaskets.
Always match your original OEM number and verify your serial number before ordering.
OEM & Cross Reference Numbers
| Type | Part Number |
|---|---|
| Pro Marine | 246-1P |
| Alternate Pro Marine | 246-1 |
| Mercury OEM | 41246 |
| Mercury OEM | 41246-1 / 412461 |
| Mercury OEM | 41246-2 / 412462 |
| Mercury OEM | 41247 |
| Mercury OEM | 41247T01 |
| Mercury OEM | 96543 |
| Sierra | 18-3862 |
| GLM | 35860 |
| Mallory | 9-63853 |
Also Available in Pro Marine Brand
Pro Marine 246-1 Cylinder Head Gasket
We also stock the Pro Marine 246-1 version of this Mercury / Mariner 2.4L V6 head gasket. It replaces the same Mercury OEM numbers and fits the same application family.
What This Gasket Is Used For
A cylinder head gasket seals the joint between the engine block and cylinder head. It must contain combustion pressure while also sealing cooling passages around the cylinders.
On older Mercury and Mariner V6 2.4L engines, head gaskets are commonly replaced during powerhead rebuilds, cylinder head removal, overheating repairs, or diagnosis of water intrusion and compression loss.
Installation Notes
- Clean and inspect the cylinder head and block sealing surfaces before assembly
- Check for corrosion, pitting, and warpage before installing a new gasket
- Use the correct Mercury service manual torque sequence and torque values
- Inspect head bolts and replace any damaged or questionable hardware
- Each V6 powerhead uses one head gasket per cylinder head
Pro Marine 246-1P Features
- Fits Mercury and Mariner V6 2.4L two-stroke applications
- Commonly used on 150XR4, 175HP, 200HP, and 220HP engines
- Replaces Mercury 41246, 412461, 412462, 41247, 41247T01, and 96543
- Cross references Sierra 18-3862, GLM 35860, and Mallory 9-63853
- Designed for cylinder head service and powerhead rebuilds
- Alternative Pro Marine 246-1 version linked above
FAQ
What OEM numbers does Pro Marine 246-1P replace?
It replaces Mercury 41246, 41246-1, 41246-2, 41247, 41247T01, and 96543.
What engines does this head gasket fit?
It fits many Mercury and Mariner V6 2.4L two-stroke outboards, commonly including
150XR4, 175HP, 200HP, and 220HP applications when the OEM gasket number matches.
Will this fit a Mercury 2.5L V6?
Do not assume fitment on a 2.5L engine. This gasket is for the listed 2.4L OEM
number family. Verify your engine serial number and OEM gasket number first.
Is the 246-1 version available?
Yes. The Pro Marine 246-1 version is linked above as an alternate option.
How many gaskets do I need for both cylinder heads?
Mercury V6 engines use one head gasket per cylinder head, so two are typically
needed if servicing both heads.
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.
- Gaskets must be new, unused, and in original packaging.
- Installed gaskets are not returnable.
- Return authorization required before returning merchandise.
Need assistance?
Contact Us
Phone: 941-721-3000
Searchable Terms
246-1P, 246-1, Pro Marine 246-1P, Mercury 41246, Mercury 41246-1, Mercury 412461, Mercury 41246-2, Mercury 412462, Mercury 41247, Mercury 41247T01, Mercury 96543, Sierra 18-3862, GLM 35860, Mallory 9-63853, Mercury V6 2.4L head gasket, Mercury 150 XR4 head gasket, Mercury 175 head gasket, Mercury 200 head gasket, Mercury 220 head gasket, Mariner V6 head gasket, Mercury powerhead gasket
35860
41246
412461
412462
41247
41247T01
9-63853
96543
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
897534
888593
822844
822844T04
822844T05
822844004
8228441
8228442
8228443
18-0378
31530
37620
78069
823142
8231421
8231422
9-60045
74708
78029
85490
854901
854902
856729
0437772
0438593
0769459
30260
30260
43777
437771
437772
47772
5000308
96483
414751
414752
414753
414754
414755
414756
414757
414758
892158
92331