Mercruiser Manifold / Engine Block Drain Plugs

Sierra 18-4226 - Mercury Drain Plug
Your Price: $2.86
Save: $1.58
(35% Off $4.44)
Part # 18-4226 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 16 hrs 7 mins.
Replaces OEM part #
  • MERCURY MARINE 22-806608A1
Sierra
Replaces Sierra #:18-4226 Replaces Original Equipment Manufacturer(OEM):Mercruiser Replaces Original Equipment Manufacturer # (OEM #):806608A1 Fits Application:MCM & MIE V-6 & V-8 w/ center riser manifolds
Average Customer Review for Sierra 18-4226 - Mercury Drain Plug
Full StarFull StarFull StarFull StarFull Star Based On 4 Reviews | Write Review
Full StarFull StarFull StarFull StarEmpty Starplugs
by Rand from Xenia, Ohio on June 15, 2015
were used to replace old brittle plugs they worked fine.
Was this review helpful?
Full StarFull StarFull StarFull StarFull StarDrain plugs
by Raymond from Skippack, Pennsylvania on August 05, 2014
I had looked all over for these items. Iboats came through. Thanks
Was this review helpful?
Full StarFull StarFull StarFull StarFull StarDrain Plugs
by Randy from Juniata, Nebraska on May 20, 2013
Pretty simple, they got it right.
Was this review helpful?
Full StarFull StarFull StarFull StarFull StarDrain plug
by Thomas from Redwood Falls, Minnesota on May 12, 2013
As described very fast shipment: impressed!
Was this review helpful?
Q:
Can you tell me the tread size and count for this plug? I need to retap a hole with bad treads?
A:
According to our sources, the thread size is 1/2 x 13. However, the threads on this drain plug are deeper than the conventional design.
Q:
Will this fit a water drain plug on a 1988 mercruiser 3.0l?
A:
No it will not. According to Mercury's parts list the drain cock assembly located at the cylinder block is 18-4218.
Ask a question
Question & Answer Guidelines
This product ships in 1 business day.
Add to Cart and enter your Postal Code to determine the shipping charges and estimated delivery date.
Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Standard Shipping Policies