EMP Drain Plug 3/4 Inch NPT x 1 Inch Hose, Replaces 22-807155, Corrosion-Resistant Brass Fitting

The EMP Drain Plug (22-22000-2) is a corrosion-resistant brass fitting sized 3/4 inch - 14 NPT x 1 inch hose, built for draining applications on marine exhaust manifolds. Brass construction resists the corrosive effects of raw water and exhaust condensation, making it a durable choice for below-waterline and engine-block drain points. The NPT-threaded end allows it to thread directly into a tapped drain port, while the 1 inch hose end accepts standard marine hose for directing drained water or coolant away from the engine. This drain plug is used in Mercruiser exhaust manifold applications and is a direct replacement for OEM part number 22-807155, letting you restore a factory-fit seal without sourcing the original manufacturer part. Its compact brass body is built to hold up under repeated draining and re-installation, a routine task for winterizing and off-season storage of sterndrive and inboard engines. Whether you are replacing a corroded or stripped original plug or performing scheduled maintenance, this fitting provides a reliable, leak-resistant connection point.

Specifications

• Brand: EMP
• Manufacturer Part Number: 22-22000-2
• Thread Size: 3/4 inch - 14 NPT x 1 inch Hose
• Material: Corrosion-Resistant Brass
• Application: Mercruiser Exhaust Manifold
• Weight: 0.28 pounds
• UPC: 840080455808
• Replaces (OEM): 22-807155

Fitment

Used in Mercruiser exhaust manifold drain applications.

Replaces (OEM)

• 22-807155

Frequently Asked Questions

What does the EMP 22-22000-2 drain plug replace? It is a direct replacement for OEM part number 22-807155.

What size threads does this drain plug use? The EMP 22-22000-2 uses a 3/4 inch - 14 NPT thread on one end and a 1 inch hose connection on the other.

What is this drain plug made of? It is made of corrosion-resistant brass, which holds up well against raw water and exhaust condensation.

How much does the EMP 22-22000-2 drain plug weigh? It weighs 0.28 pounds.

What application is this drain plug designed for? The 22-22000-2 is used in Mercruiser exhaust manifold drain applications.

Is this an OEM or aftermarket part? The EMP 22-22000-2 is an aftermarket brass drain plug engineered to replace OEM number 22-807155 with equivalent fit and function.

Can this fitting be used with standard marine hose? Yes, the 1 inch hose end of the 22-22000-2 accepts standard 1 inch marine hose.

Why would I need to replace a drain plug like this? Drain plugs corrode or crack over time from exposure to raw water and heat cycling, and the EMP 22-22000-2 provides a corrosion-resistant brass replacement for OEM part 22-807155.

Does the NPT threading seal without additional parts? The 3/4 inch - 14 NPT threads on the 22-22000-2 are tapered pipe threads designed to seal when properly installed; using thread sealant is standard practice for a leak-free fit.

Is this drain plug part of routine winterizing? Yes, drain plugs like the EMP 22-22000-2 are commonly removed and reinstalled during winterizing and off-season draining of exhaust manifolds.