Skip to product information
Usually ships in 2–4 business days.
22 806608A02 18 4226 Manifold and Block Drain Plug Screws for MerCruiser 5 Piece
$22.99
Sale price
$22.99
Regular price
Available to Order
Part Number(s)
Need help finding the right part? Talk with a parts expert today.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
Randy W. — Verified customer
Manifold & Block Drain Plug Screws Set for MerCruiser
This set of five drain plug screws replaces the manifold and block drains on MerCruiser marine engines, serving as OEM cross-reference for part numbers 22-806608A02 and 18-4226.
Overview
This drain plug screw set provides replacement screws for the manifold and block drains on MerCruiser engines. Each screw is designed to seal the cooling system during operation and allow easy drainage during storage or winterization. The set is ideal for boat owners and marine technicians performing routine engine maintenance.
Built For Performance
- Corrosion-resistant construction for marine environments
- Precision threads ensure secure seal
- Set includes both manifold and block plugs
- Simple installation with common tools
- Meets or exceeds OEM specifications
- Durable material withstands temperature extremes
On-The-Job Use
- Winterizing MerCruiser engines
- Draining coolant before storage
- Replacing worn or stripped drain plugs
- Routine cooling system maintenance
- Preparing engine for off-season layup
Specs At A Glance
| Part Number(s) | 22-806608A02, 18-4226 |
| Quantity | 5 |
Good To Know
Q: Are these screws compatible with all MerCruiser engines? A: These drain plug screws are designed for many MerCruiser V6 and V8 models, but always verify thread size and location for your specific engine.
Q: What material are these screws made of? A: They are constructed from corrosion-resistant materials suitable for saltwater and freshwater use.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.