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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
18786T
187861
187863
35890
9-63856
18-3872
18-3872
35900
41244
41244T02
41245
412451
412452
77671
9-63852
90279
96541
Pro Marine Powerhead Gasket
Mercury Mariner V6 2.4L 150-220HP Cylinder Head Gasket
The Pro Marine 246-1 Cylinder Head Gasket is a replacement head gasket for Mercury and Mariner V6 2.4L outboards. This gasket replaces Mercury OEM part numbers 41246, 41246-1, 41246-2, 41247, 41247T01, and 96543 and is commonly found on 150HP through 220HP V6 applications.
Whether you're rebuilding a powerhead, repairing a cooling system issue, or replacing a leaking cylinder head gasket, the Pro Marine 246-1 is designed to restore proper sealing between the cylinder head and engine block.
Compatible Applications
Mercury OEM numbers 41246, 41246-1, 41246-2, 41247, 41247T01, and 96543 are associated with Mercury and Mariner V6 2.4L outboards. These engines were commonly produced throughout the late 1970s, 1980s, and early 1990s and include numerous fishing, offshore, and performance applications.
| Manufacturer | Common Applications |
|---|---|
| Mercury | 150HP V6 2.4L |
| Mercury | 175HP V6 2.4L |
| Mercury | 200HP V6 2.4L |
| Mercury | XR4 150 V6 |
| Mercury | Bridgeport & High Performance 2.4L Applications |
| Mercury | 220HP V6 Applications |
| Mariner | 150HP-220HP V6 2.4L Models |
Mercury produced multiple V6 engine families including 2.0L, 2.4L, 2.5L and later designs. Always verify your engine serial number and OEM gasket number before ordering.
This gasket replaces Mercury OEM numbers 41246, 41246-1, 41246-2, 41247, 41247T01, and 96543.
OEM & Cross Reference Numbers
| Type | Part Number |
|---|---|
| Pro Marine | 246-1 |
| Mercury OEM | 41246 |
| Mercury OEM | 41246-1 |
| Mercury OEM | 41246-2 |
| Mercury OEM | 41247 |
| Mercury OEM | 41247T01 |
| Mercury OEM | 96543 |
Alternative Pro Marine Version Available
Pro Marine 246-1P Cylinder Head Gasket
We also stock the Pro Marine 246-1P version of this head gasket. It fits the same Mercury and Mariner V6 2.4L applications and is available as an alternative replacement option.
What Does a Cylinder Head Gasket Do?
The cylinder head gasket creates a seal between the cylinder head and engine block. It keeps combustion pressure inside the cylinders while separating cooling passages from the combustion chamber.
A damaged head gasket can result in compression loss, cooling system leaks, water intrusion, overheating, hard starting, or poor engine performance.
When Should a Head Gasket Be Replaced?
- During cylinder head removal
- When repairing overheating damage
- When rebuilding a powerhead
- After detecting water intrusion into a cylinder
- When compression loss indicates gasket failure
Pro Marine 246-1 Features
- Fits Mercury and Mariner V6 2.4L outboards
- Replaces Mercury OEM 41246, 41246-1, 41246-2, 41247, 41247T01 and 96543
- Compatible with 150HP, 175HP, 200HP, XR4 and select 220HP models
- Ideal for powerhead rebuilds and cylinder head repairs
- Designed to maintain proper compression sealing
- Quality aftermarket replacement from Pro Marine
FAQ
What OEM numbers does this gasket replace?
Mercury 41246, 41246-1, 41246-2, 41247, 41247T01, and 96543.
What engines commonly use this gasket?
Mercury and Mariner V6 2.4L engines including many 150HP, 175HP, 200HP, XR4, and 220HP applications.
Will this fit a 2.5L Mercury?
Not necessarily. Mercury used different head gasket designs across the 2.0L, 2.4L, and 2.5L engine families. Verify your OEM part number before ordering.
Do you stock another version?
Yes. We also stock the Pro Marine 246-1P version linked above.
Should head bolts be inspected during replacement?
Yes. Follow Mercury service manual procedures and inspect all fasteners and sealing surfaces during installation.
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.
- Parts must be new, unused, and in original packaging.
- Installed parts are not returnable.
- Return authorization required before returning merchandise.
Need assistance?
Contact Us
Phone: 941-721-3000
Searchable Terms
246-1, 246-1P, Mercury 41246, Mercury 41246-1, Mercury 41246-2, Mercury 41247, Mercury 41247T01, Mercury 96543, Mercury V6 head gasket, Mercury 2.4L head gasket, Mercury XR4 head gasket, Mercury 175 head gasket, Mercury 200 head gasket, Mariner V6 head gasket, Pro Marine cylinder head gasket
35860
41246
412461
412462
41247
41247T01
9-63853
96543
822844
822844T04
822844T05
822844004
8228441
8228442
8228443
8M0033476
880552007
895374
895374002
895374006
8M0024564
8M0033476
880552007
880552007
895374
895374
895374002
895374006
81551
818573
9-63850