Mercury MerCruiser OEM Exhaust Manifold Drain Elbow Kit 862210A01 | V6 & V8 Center-Rise Manifold

Mercury / MerCruiser OEM Exhaust Manifold Drain Elbow Kit — Part No. 862210A01 / 22-862210A01

About This Kit

The 862210A01 / 22-862210A01 is a genuine Mercury Marine / MerCruiser OEM stainless-steel exhaust manifold drain elbow kit for selected MerCruiser V6 and V8 engines equipped with center-rise exhaust manifolds. The elbow provides the manifold drain connection used when draining the cooling system for winterization, service, or storage. The kit contains everything needed to replace the drain fitting: the stainless-steel elbow, drain plug, and O-ring seal. This kit supersedes the earlier 806926A1 / 22-806926A1.

On certain center-rise V6 and V8 exhaust-manifold assemblies, Mercury diagrams show two 862210A01 kits per engine — one per manifold bank. Confirm the quantity in your exhaust-manifold diagram before ordering.

Compatible Applications

Confirm the engine model, serial number, and exhaust-manifold configuration before ordering. This kit is specified for selected:

• MerCruiser MCM V6 sterndrive engines with center-rise exhaust manifolds
• MerCruiser MCM V8 sterndrive engines with center-rise exhaust manifolds
• MerCruiser MIE V6 inboard engines with center-rise exhaust manifolds
• MerCruiser MIE V8 inboard engines with center-rise exhaust manifolds

The defining fitment detail is the center-rise exhaust manifold design with this style of drain elbow connection. This kit is not automatically correct for every MerCruiser V6 or V8 — the applicable parts diagram must call for 862210A01 or its predecessor 806926A1 at the manifold drain location.

When to Replace

• The elbow is cracked, corroded, or physically damaged
• The drain plug no longer seals correctly or is stripped
• The O-ring is cut, hardened, or allowing water to weep around the fitting
• The drain fitting was damaged during winterization or cooling-system service
• Thread or sealing-surface damage prevents reliable drainage or closure

A leaking manifold drain fitting should be repaired promptly — an open or weeping drain can allow water to remain in the exhaust manifold passages and cause corrosion damage over time.

Installation Notes

• Allow the engine and exhaust system to cool completely before beginning work
• Drain the cooling system fully before removing the old fitting
• Inspect the manifold drain port threads and sealing surface for corrosion or damage before installing the new elbow
• Install the supplied O-ring in the correct position before threading in the elbow
• Do not overtighten — the stainless elbow threads into an aluminum or cast-iron manifold and over-torquing can damage the manifold threads
• Install the drain plug securely after the elbow is fitted
• Run the engine and inspect the drain connection for any weeping or leakage after completing the installation
• Follow the applicable Mercury service manual for torque values and procedure

Kit Contents

• Stainless-steel 22-degree drain elbow
• Drain plug
• O-ring seal

Superseded Part Numbers

• 862210A01 / 22-862210A01 — current part number
• 806926A1 / 22-806926A1 — superseded by 862210A01

Related Components

The following parts appear in the same exhaust-manifold drain and cooling-system assemblies:

• 8M0119211 — drain plug kit (related drain hardware)
• 32509 — quad ring (sealing component in related drain assemblies)
• 807988A03 — exhaust elbow assembly (used in the same exhaust system family)

Technical FAQ

How many kits does my engine need?
Certain MerCruiser center-rise V6 and V8 exhaust configurations use two 862210A01 kits per engine, one on each manifold bank. Confirm the quantity in your specific exhaust-manifold parts diagram before ordering.

Does 862210A01 replace 806926A1?
Yes. 862210A01 is the current Mercury part number and direct replacement for the earlier 806926A1 / 22-806926A1.

Why is a stainless-steel elbow important here?
The drain elbow sits at the lowest point of the exhaust manifold cooling passage and is exposed to standing water whenever the manifold is drained or partially drained. Stainless-steel construction resists the corrosion that commonly affects this location on engines used in saltwater or mixed freshwater/saltwater environments.

What happens if the drain fitting leaks?
A weeping drain fitting allows water to escape from the manifold cooling jacket under pressure, which can cause the cooling system to lose water and lead to overheating. It can also allow water to pool around the manifold and cause corrosion damage to the manifold body and mounting surfaces over time.

Parts Desk Insights

862210A01 comes up most often during fall winterization — the drain fitting gets removed every year and over time the O-ring hardens, the plug gets cross-threaded, or the elbow corrodes at the manifold port. If the old fitting is fighting you coming out, inspect the manifold port threads carefully before installing the new kit. Damaged manifold threads are a much bigger problem than a corroded fitting. The other thing to watch: some V6 and V8 center-rise manifold setups take two of these per engine. Pull the diagram before ordering one, because coming back for a second kit delays the winterization job.