Gasket Kit, Powerhead
Shipping information
Same-day shipping on orders placed before 11 AM Eastern Time.
Free shipping on orders of $199 and over.
Oils and fluids: an additional $10.99 shipping fee applies to each oil and fluid item.
30-day returns on eligible items
Unused, uninstalled items in original packaging. Special-order items: 20 days, 25% restocking fee.
Compatible Applications
| Brand | Application | Engine Type | Application Notes |
|---|---|---|---|
| Mercury | 200–250hp 3.0L EFI/DFI, 300X ProMax | 2-Stroke Outboard | Serial range OG960500 & Up |
What is Included
| Qty | Included Part | Part Number |
|---|---|---|
| 1 | Gasket, Fuel Pump | 1487 |
| 2 | O-Ring, Temp Sender | 2562 |
| 1 | Gasket, Powerhead Base | 27-832 |
| 1 | Gasket, Intake / Reed | 2707 |
| 1 | Gasket, Air Horn Plenum | 2708 |
| 2 | Seal, Thermostat | 424 |
| 1 | O-Ring, Lower End Cap | 425 |
| 1 | O-Ring, Throttle Body to Plenum | 5426 |
| 1 | O-Ring, Upper Cap | 7414 |
| 2 | O-Ring, Head Water Jacket | 8574 |
| 2 | Gasket, Relief Valve 2 Bolt | 8890 |
| 2 | Gasket, Thermostat | 9769 |
Check your serial number
This kit is specific to the serial range shown above. Check the serial number on your engine before ordering.
What This Kit is Used For
This Pro Marine powerhead gasket kit supplies the gaskets and seals needed to reseal the powerhead during a rebuild or major repair on Mercury 200–250hp 3.0L EFI/DFI, 300X ProMax two-stroke outboards.
Key Features and Benefits
- Powerhead gasket kit for Mercury 200–250hp 3.0L EFI/DFI, 300X ProMax
- 17 pieces across 12 part numbers, listed above
- Cross-references 39343, 832934A00, and 9-64220
- Aftermarket replacement
Kit Details
- Kit Part Number: 4312-3
- Manufacturer: Pro Marine (Aftermarket)
- Kit Type: Powerhead gasket kit
- Engine Type: 2-Stroke Outboard
- Cross Reference: 39343, 832934A00, 9-64220
FAQ
What does this kit fit?
This kit fits Mercury 200–250hp 3.0L EFI/DFI, 300X ProMax two-stroke outboards. Confirm your model and serial number before ordering.
What part numbers does it replace?
It cross-references 39343, 832934A00, and 9-64220.
Returns & warranty
Most standard items may be returned within 30 days of purchase if unused, uninstalled, complete, and in original packaging. Request a Return Authorization (RMA) before sending anything back. Shipping costs are non-refundable.
Special-order items may be returned within 20 days, subject to a 25% restocking fee.
Warranty claims follow the manufacturer's warranty policy. Contact us and we'll help with the process.