Sierra 18-4226 C-Drain Plug Mc #22-806608A02
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Sierra 18-4226 C-Drain Plug Mc #22-806608A02 Product Description
Keep your Mercruiser engine running smoothly with the Sierra 18-4226 C-Drain Plug, a reliable replacement designed specifically for straightforward oil drainage during routine maintenance. This precision-engineered part matches the original specifications of the Mercruiser 22-806608A02, ensuring a secure fit and leak-free performance. Boat owners trust it for its durability in harsh marine environments, preventing downtime and extending engine life.
Whether you're prepping for a long offshore trip or performing seasonal servicing, this drain plug simplifies the process, reducing the hassle of oil changes and minimizing the risk of contamination. Its robust construction withstands corrosion from saltwater exposure, making it a staple for both freshwater and saltwater enthusiasts.
Key Features and Benefits
- Exact OEM Match: Replaces Mercruiser 22-806608A02 with identical dimensions and threading for plug-and-play installation.
- Corrosion-Resistant Materials: Built from high-grade alloys that resist rust and degradation, ideal for marine use.
- Secure Sealing: Provides a tight seal to prevent oil leaks, ensuring efficient drainage without residue buildup.
- Easy Maintenance Access: Strategically designed for quick removal and reinstallation, saving time during service intervals.
- Proven Reliability: Sierra's reputation for quality aftermarket parts means fewer replacements and consistent performance.
Investing in this drain plug not only safeguards your engine's internals but also maintains optimal oil flow, which is crucial for lubrication and cooling under high-load conditions like towing watersports gear or cruising at speed.
Compatibility Guide
The Sierra 18-4226 fits a wide range of Mercruiser engines, particularly those requiring cylinder block drain plugs. It's commonly used in popular models from the GM-based V6 and V8 series. Always cross-reference your engine serial number to confirm fitment, as variations exist across model years. This plug supports both inboard and sterndrive setups, making it versatile for powerboats, pontoons, and yachts.
| Engine Type | Common Applications |
|---|---|
| GM V6/V8 | 4.3L, 5.0L, 5.7L blocks |
| Sterndrive | Alpha One, Bravo series |
| Inboard | Standard freshwater-cooled setups |
Simple Installation Steps
- Warm up the engine to operating temperature to thin the oil for easier drainage.
- Position the boat on a trailer or level surface and locate the drain plug on the cylinder block (typically lower port or starboard side).
- Place a catch pan underneath and use a 1/2-inch drive socket or wrench to loosen the plug counterclockwise.
- Allow oil to fully drain, then clean the threads and mating surface thoroughly.
- Apply a thin layer of marine-grade anti-seize to the new Sierra 18-4226 threads, then hand-tighten followed by a quarter-turn with the wrench to spec (avoid over-torquing).
- Refill with the recommended oil type and check for leaks after running the engine briefly.
Pro tip: Replace the drain plug during every oil change (every 100 hours or annually) to avoid seizing from old gasket material, which can lead to stripped threads or incomplete drainage.
Pro Maintenance Tips for Longevity
To maximize the lifespan of your Sierra 18-4226 drain plug and engine:
- Inspect for wear or damage during pre-launch checks—look for cracks or stripped edges.
- Flush the block with oil before draining to remove sludge buildup.
- Pair with a magnetic drain plug insert if debris is a concern in your operating waters.
- Store spares onboard for emergency swaps, as a faulty plug can sideline your outing.
- Combine with filter changes and fuel system servicing for comprehensive engine health.
Regular attention to drainage points like this one can prevent costly overhauls, keeping your boating adventures uninterrupted.
Frequently Asked Questions
What Mercruiser part does the Sierra 18-4226 replace?
It directly replaces the Mercruiser 22-806608A02 cylinder drain plug, offering identical fit and function.
Is the Sierra 18-4226 suitable for saltwater use?
Yes, its corrosion-resistant materials make it ideal for both freshwater and saltwater environments.
How do I know if this drain plug fits my engine?
Check your engine's serial number against Mercruiser compatibility charts; it's common for GM V6/V8 blocks.
Can I reuse my old drain plug?
It's best to replace it each oil change to ensure a proper seal and avoid thread damage.
What torque should I use when installing the Sierra 18-4226?
Hand-tighten then add a quarter-turn with a wrench; consult your engine manual for exact specs to prevent over-tightening.
Does this plug include a gasket or washer?
It features an integrated sealing design; no separate gasket is required.
How often should I replace the drain plug?
Replace during every oil change, typically every 100 hours of operation or annually.
Buy with the best price Sierra 18-4226 C-Drain Plug Mc #22-806608A02 for only $3 from NVN Marine! Same day shipping before 3pm.
Sierra 18-4226 C-Drain Plug Mc #22-806608A02 Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Sierra Engine Parts |
| Weight: |
0.01 lb |
Sierra 18-4226 C-Drain Plug Mc #22-806608A02 User Reviews
Sierra 18-4226 C-Drain Plug Mc #22-806608A02 Shipping & Return
| Shipping Weight: |
0.01 lb |
|---|---|
| Box Sizes: |
0.00 (h) x 4.00 (w) x 5.00 (l) |
| Cubic Feet: |
0.0 |
| Returnable: |
Yes |
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