Mercury Quicksilver 300 Hour Service Kit 8M0133617
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The Mercury / Quicksilver 8M0133617 300 Hour Service Kit is a complete OEM maintenance kit designed for L6 Verado EFI 4-stroke outboards (200–350 HP).
This kit includes all required components to perform the 300-hour scheduled service, covering fuel, ignition, cooling, and wear items. It ensures proper engine performance, reliability, and compliance with Mercury maintenance intervals.
Designed specifically for inline 6-cylinder Verado engines, this kit eliminates the need to source individual service parts and guarantees correct OEM fitment and performance.
Key Features
- Genuine Mercury / Quicksilver OEM kit
- Complete 300-hour service package
- Designed for L6 Verado EFI 4-stroke outboards
- Covers fuel, ignition, cooling, and wear components
- Ensures proper maintenance interval compliance
- Direct OEM replacement components
Engine Compatibility
Mercury Verado L6 4-Stroke Outboards
- 200 HP
- 225 HP
- 250 HP
- 275 HP
- 300 HP
- 350 HP (see note below)
Serial Range
- 2B144123 and newer
Fits inline 6-cylinder (2.6L) Verado platforms (G5)
Fitment Notes
- Designed for L6 Verado EFI 4-stroke engines only
- Includes anodes (350HP models may require additional anodes)
- Not compatible with V6 or V8 Verado platforms
What's Included (Kit Contents)
Typical kit includes:
- Oil filter
- Low-pressure fuel filter
- High-pressure fuel filter
- Gearcase drain seals (2)
- Spark plugs (6)
- Thermostat kit
- Water pump impeller repair kit
- Alternator / serpentine belt
- Anode kit
Specifications
- Part Number: 8M0133617
- Service Interval: 300 hours
- Engine Type: L6 Verado EFI 4-stroke
- Horsepower Range: 200–350 HP
- Cooling System: Raw water cooled outboards
When This Kit Is Required
- Scheduled 300-hour service
- High-hour engine maintenance
- Preventive service on Verado platforms
- Restoring performance and reliability
Installation Notes
- Follow Mercury service manual procedures
- Replace all included components during service
- Oil and gear lube sold separately
- Inspect additional wear items (hoses, clamps, etc.)
- Record service interval after completion
Alternate / Superseded Part Numbers
- Mercury / Quicksilver: 8M0133617
Parts Desk Insight
This kit is specific to inline-6 Verados — don’t mix it up with the newer V6/V8 kits. Wrong kit = missing parts or wrong thermostat.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
In-stock OEM parts: ship same or next business day.
Other in-stock products: ship within 1–3 business days.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.