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Mercury L6 Verado 350HP-400HP 300 Hour Service Kit
| Quantity | Price |
| 1 | 695.49 |
Mercury L6 Verado 300 Hour Service Kit
Mercury Inline 6 Verado 350HP-400HP 300 Hour Service Kit
This VER100-L6350 300 hour service kit is built for Mercury Inline 6 Verado 350HP-400HP outboards. It is designed for major scheduled maintenance on compatible high horsepower L6 Verado FourStroke models.
This kit is a convenient option for customers performing 300 hour service and wanting the major maintenance components grouped together for their compatible Mercury L6 Verado 350HP or 400HP outboard.
Compatible Applications
| Brand | Horsepower | Engine Type | Application Notes |
|---|---|---|---|
| Mercury | 350HP | L6 Verado FourStroke | Compatible high horsepower L6 Verado models |
| Mercury | 400HP | L6 Verado FourStroke | Compatible high horsepower L6 Verado models |
This 300 hour service kit is intended for Mercury Inline 6 Verado 350HP-400HP outboards.
If you have a 200HP-300HP L6 Verado, use one of the 200HP-300HP 300 hour service kit options linked below.
Have a 200HP-300HP L6 Verado?
Mercury L6 Verado 200HP-300HP 300 Hour Kit
300 hour service kit for Mercury Inline 6 Verado 200HP-300HP models with the later 2B serial range.
View Product
Mercury L6 Verado 200HP-300HP Service Kit
Service kit option for earlier Mercury Inline 6 Verado 200HP-300HP models with serial numbers 2B144122 and below.
View ProductWhat is Included
| Included Component | Application |
|---|---|
| 300 hour maintenance components | Major scheduled service interval |
| Oil filter service component | Engine oil filtration service |
| Fuel filter service components | Fuel system maintenance |
| Spark plug service components | Ignition system maintenance |
| Water pump / cooling system service components | Cooling system and water pump maintenance |
| Anode / corrosion protection components | Routine corrosion protection maintenance |
| Service seals and maintenance hardware | Routine replacement during scheduled service |
What This Service Kit is Used For
This VER100-L6350 service kit is used for 300 hour scheduled maintenance on compatible Mercury Inline 6 Verado 350HP-400HP FourStroke outboards.
300 hour service is a major maintenance interval that helps support fuel system cleanliness, ignition performance, cooling system operation, corrosion protection, and long-term engine reliability.
Regular scheduled maintenance helps support dependable Verado performance, proper cooling, clean fuel delivery, and long-term durability in demanding marine conditions.
Customers with 200HP-300HP L6 Verado models should use one of the linked service kit options above instead of this 350HP-400HP kit.
Key Features and Benefits
- 300 hour service kit for Mercury Inline 6 Verado outboards
- Fits Mercury L6 Verado 350HP-400HP models
- Designed for major scheduled maintenance
- Supports fuel system, ignition, cooling system, and corrosion protection service
- Convenient way to group major maintenance components
- Helps support long-term Verado reliability and performance
- Use 200HP-300HP kit options for lower horsepower L6 Verado models
Service Kit Details
- Kit Part Number: VER100-L6350
- Application: Mercury Inline 6 Verado FourStroke Outboards
- Horsepower Range: 350HP-400HP
- Service Interval: 300 Hour Maintenance
- Engine Family: L6 Verado
- Service Type: Major scheduled maintenance
FAQ
What engines does this 300 hour service kit fit?
This kit fits compatible Mercury Inline 6 Verado 350HP-400HP outboards.
Does this kit fit Mercury L6 Verado 200HP-300HP models?
No. Mercury L6 Verado 200HP-300HP models use different service kit options, linked above.
Is this the same as a basic oil change kit?
No. This is a 300 hour service kit. A basic oil change kit is used for engine oil and oil filter service only.
What is the difference between 100 hour and 300 hour service?
A 100 hour service is a routine maintenance interval, while 300 hour service is a larger scheduled service that may include additional maintenance items depending on the engine and service schedule.
Should I verify fitment before ordering?
Yes. Always confirm your engine horsepower, model, and service requirements before ordering maintenance parts.
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.
- Maintenance kits must be new, unused, and in original packaging.
- Opened oil, lubricants, installed parts, and used maintenance items may not be returnable.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
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