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90° Exhaust Manifold Drain Elbow Assembly – For MerCruiser V6 & V8 Stern Drive and Inboard Engines

Sale price $23.65 Regular price $36.00

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U.S. orders usually arrive within 6–15 days, depending on stock location and destination.


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If you have any questions, feel free to email us at info@seasierra.com, and we’ll get back to you within 20–36 hours.

Product Details

This 90° Exhaust Manifold Drain Elbow Assembly is a replacement manifold drain fitting for MerCruiser V6 and V8 stern drive and inboard engines equipped with center-rise manifolds. It is intended for applications using the matching manifold drain connection and provides a practical replacement for a cracked, damaged, or leaking drain elbow.

Cross-reference numbers listed for this application include Mercury and Mercury Quicksilver references 22-806926A1, 22806926A1, 806926A1, 22-862210A01, 22862210A01, and 862210A01. Related aftermarket references include Sierra Marine 18-4224, OBR Red Rhino MR-512, Mallory Marine 9-41200, and GLM 13990 and 13991.

  • 90° drain elbow assembly for a manifold drain connection.
  • Designed for MerCruiser V6 and V8 stern drive and inboard engines with center-rise manifolds.
  • Sold as a single replacement assembly, not a multi-piece kit.
  • Confirm the existing fitting, manifold configuration, and reference number before ordering.

Part Number Matrix

Use the following references to compare the existing drain elbow with this replacement. Part-number references should be confirmed against the engine and manifold configuration.

Brand or Reference Part Number
Mercury / Mercury Quicksilver 22-806926A1
Mercury 22806926A1
Mercury 806926A1
Mercury / Mercury Quicksilver 22-862210A01
Mercury 22862210A01
Mercury 862210A01
Sierra Marine 18-4224
OBR Red Rhino MR-512
Mallory Marine 9-41200
GLM 13990
GLM 13991

Engine & Model Compatibility

This listing is for the following application. Because MerCruiser fitment can vary by manifold design, verify the center-rise manifold configuration and compare the existing fitting before installation.

Engine Brand Engine Configuration Drive or Installation Manifold Requirement Application References
MerCruiser V6 Stern drive or inboard Center-rise manifold 22-806926A1; 22-862210A01; Sierra 18-4224
MerCruiser V8 Stern drive or inboard Center-rise manifold 22-806926A1; 22-862210A01; Sierra 18-4224

Technical Specs

Product Type
Exhaust manifold drain elbow assembly
Fitting Style
90° elbow
Application
Manifold drain connection
Engine Configuration
MerCruiser V6 and V8 engines
Installation Type
Stern drive or inboard engines with center-rise manifolds
Product Format
Single replacement assembly

What’s in the Box

  • 1 x 90° exhaust manifold drain elbow assembly

Installation Notes

  1. Make sure the engine is switched off and completely cool before beginning work.
  2. Place a suitable container beneath the manifold drain area to catch residual water or coolant.
  3. Remove the existing drain elbow carefully and inspect the manifold connection for damage or contamination.
  4. Compare the replacement elbow with the original part, including the elbow orientation and connection style.
  5. Clean the mating threads or sealing surfaces as appropriate for the application.
  6. Install the replacement elbow by hand until properly seated, then tighten according to the engine or manifold manufacturer's service instructions.
  7. Do not overtighten the fitting, since excessive force can damage the fitting or manifold.
  8. Run the engine only after the installation is complete and check the drain area for leaks.

Troubleshooting & FAQ

How do I confirm that this drain elbow fits my engine?

This replacement is listed for MerCruiser V6 and V8 stern drive and inboard engines with center-rise manifolds. Compare your existing fitting with the product image and check the listed Mercury, Sierra, Mallory, or GLM reference number. If your manifold design or fitting orientation differs, consult the engine service manual before ordering.

Is this product a complete exhaust manifold?

No. This listing is for a 90° manifold drain elbow assembly only. It does not include an exhaust manifold, riser, hose, gasket set, or other manifold hardware unless specifically stated in the package contents.

Is this a kit or a single replacement part?

This item is a single product rather than a kit. The package contains one replacement drain elbow assembly.

What are the common signs that the drain elbow needs replacement?

Visible cracking, deterioration, leaking around the fitting, damaged threads, or difficulty removing or tightening the existing elbow can indicate that replacement is needed. Inspect the fitting during routine service and winterization.

Can I reuse the old seal or sealing material?

Do not reuse damaged or deteriorated sealing material. The correct sealing method depends on the specific manifold and fitting configuration, so follow the engine or manifold manufacturer's service instructions.

Do I need a special tool for installation?

Installation generally uses standard hand tools suitable for the fitting. Use the service manual's recommended procedure and avoid applying excessive torque.

Is this an OEM part?

This listing is for a replacement assembly. The Mercury and Mercury Quicksilver numbers are reference numbers used to identify the application; the replacement itself should not be represented as a genuine Mercury OEM component.

Safety & Important Info

  • Verify the engine configuration, manifold style, fitting orientation, and reference number before ordering.
  • Work only on a cool, switched-off engine and follow the applicable service manual.
  • Check carefully for leaks after installation and before normal operation.
  • This is a replacement component, not a complete exhaust manifold or manifold hardware kit.

About Sea Sierra

  • Marine Parts Selection — We supply replacement components for common marine engine and stern-drive applications.
  • Application-Focused Listings — Product information is organized around engine configuration and reference-number matching.
  • Practical Replacement Support — Compare the original component and service-manual requirements before installation.

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