Gasket Kit, Powerhead V6
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 |
|---|---|---|---|
| Johnson / Evinrude (OMC) | 135–175hp 60° V6 FFI | 2-Stroke Outboard | Confirm fitment with your model and serial number |
What is Included
| Qty | Included Part | Part Number |
|---|---|---|
| 1 | Gasket, Regulator Rectifier | 2291 |
| 2 | Seal, Thermostat | 2384 |
| 6 | O-Ring, Cylinder Head | 2745 |
| 1 | Gasket, Powerhead Base | 419 |
| 2 | Gasket, Throttle Body | 4335 |
| 1 | O-Ring, Crankshaft End Cap | 518 |
| 1 | Gasket, Intake Port | 6226 |
| 1 | Gasket, Intake Starboard | 6227 |
Includes cylinder head O-rings
This kit includes the cylinder head O-rings, so the heads can be resealed at the same time as the rest of the powerhead.
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 Johnson / Evinrude (OMC) 135–175hp 60° V6 FFI two-stroke outboards.
Key Features and Benefits
- Powerhead gasket kit for Johnson / Evinrude (OMC) 135–175hp 60° V6 FFI
- 15 pieces across 8 part numbers, listed above
- Includes cylinder head O-rings
- Cross-references 18-4420, 439202, and 9-64105
- Aftermarket replacement
Kit Details
- Kit Part Number: 4374
- Manufacturer: Pro Marine (Aftermarket)
- Kit Type: Powerhead gasket kit
- Engine Type: 2-Stroke Outboard
- Head O-Rings: Included
- Cross Reference: 18-4420, 439202, 9-64105
FAQ
What does this kit fit?
This kit fits Johnson / Evinrude (OMC) 135–175hp 60° V6 FFI two-stroke outboards. Confirm your model and serial number before ordering.
What part numbers does it replace?
It cross-references 18-4420, 439202, and 9-64105.
Are the cylinder head seals included?
Yes. This kit includes the cylinder head O-rings.
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.