Exhaust Elbow Gasket – Fits MerCruiser V6 & V8 Sterndrive/Inboard Engines (Replaces 8M2004414)
Exhaust Elbow Gasket – Fits MerCruiser V6 & V8 Sterndrive/Inboard Engines (Replaces 8M2004414) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Free standard shipping on all orders under 1 KG
Exhaust Elbow Gasket – Fits MerCruiser V6 & V8 Sterndrive/Inboa...
Product Details
This Exhaust Elbow Gasket creates a reliable seal between the exhaust elbow and manifold on MerCruiser sterndrive and inboard engines. It is designed for V6 (4.3L) and V8 (5.0L, 5.7L, 6.2L) gasoline models from 2008 and newer that are equipped with a standard (raw water) cooling system.
It serves as a direct replacement for Mercury/Quicksilver part number 8M2004414 and GLM Marine 37880.
- Bolt-on installation for standard cooling systems.
- Engineered for gasoline sterndrive and inboard applications.
- Seals the connection between the exhaust elbow and manifold.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury/Quicksilver | 8M2004414 |
| GLM Marine | 37880 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| MerCruiser | V6 (4.3L) Sterndrive | 4.3L (262 CID) | 4-Stroke | 2008 and newer | 8M2004414 | Standard cooling system only |
| MerCruiser | V8 (305 CID) Sterndrive | 5.0L (305 CID) | 4-Stroke | 2008 and newer | 8M2004414 | Standard cooling system only |
| MerCruiser | V8 (350 CID) Sterndrive | 5.7L (350 CID) | 4-Stroke | 2008 and newer | 8M2004414 | Standard cooling system only |
| MerCruiser | V8 (377 CID) Sterndrive | 6.2L (377 CID) | 4-Stroke | 2008 and newer | 8M2004414 | Standard cooling system only |
| MerCruiser | V6 (4.3L) Inboard | 4.3L (262 CID) | 4-Stroke | 2008 and newer | 8M2004414 | Standard cooling system only |
| MerCruiser | V8 (305 CID) Inboard | 5.0L (305 CID) | 4-Stroke | 2008 and newer | 8M2004414 | Standard cooling system only |
| MerCruiser | V8 (350 CID) Inboard | 5.7L (350 CID) | 4-Stroke | 2008 and newer | 8M2004414 | Standard cooling system only |
| MerCruiser | V8 (377 CID) Inboard | 6.2L (377 CID) | 4-Stroke | 2008 and newer | 8M2004414 | Standard cooling system only |
Technical Specs
- Product Type
- Exhaust Elbow Gasket
- Application
- Standard (raw water) cooling systems
- Fuel Type
- Gasoline
- Connection
- Exhaust Elbow to Manifold
- Fitting Type
- Bolt-on
- Package Dimensions
- 22.0 x 17.0 x 2.0 cm (8.66 x 6.69 x 0.79 in)
- Weight
- 0.09 kg (0.2 lb)
- Warranty
- Limited 1 year (Quicksilver)
What’s in the Box
- 1 x Exhaust Elbow Gasket (Replaces 8M2004414)
Installation Notes
- Ensure the engine is completely cool and disconnect the battery for safety.
- Drain the cooling system as required to prevent spills when removing components.
- Carefully unbolt and remove the exhaust elbow from the manifold.
- Remove the old gasket and thoroughly clean both mating surfaces. All traces of old material and corrosion must be removed for a proper seal.
- Place the new gasket into position, ensuring it is correctly aligned.
- Re-attach the exhaust elbow and hand-tighten the bolts.
- Using a torque wrench, tighten the bolts to the manufacturer's specified torque sequence and value.
- Refill the cooling system, reconnect all hoses, and reconnect the battery.
- Start the engine and carefully inspect for any exhaust or water leaks around the gasket.
Troubleshooting & FAQ
How do I confirm this gasket fits my MerCruiser engine?
This gasket fits specific MerCruiser V6 (4.3L) and V8 (5.0L, 5.7L, 6.2L) sterndrive and inboard engines from 2008 and newer. Critically, it is only for models with standard (raw water) cooling systems. Please review the detailed compatibility table on this page to verify your specific model and year.
What are the signs of a failing exhaust elbow gasket?
Common symptoms include visible water leaking from the joint between the manifold and elbow, unexpected water in the bilge, engine overheating, or steam coming from the engine compartment. A failed gasket can lead to serious engine damage if not addressed.
Can this gasket be used in saltwater environments?
Yes, it is designed for standard cooling systems which draw raw water (be it freshwater or saltwater) directly from the environment to cool the engine. The materials are selected for marine use.
Do I need to use sealant or adhesive with this gasket?
These gaskets are typically designed for a dry installation. Applying sealant can sometimes interfere with a proper seal. We recommend following the procedures in your engine's official service manual. If the manual specifies a sealant, use the recommended type.
How often should this part be replaced?
There is no fixed replacement interval. It should be replaced whenever the exhaust elbow is removed for service, or immediately if any signs of a leak are detected. Regular inspection of the exhaust system is recommended.
Can a bad gasket cause water to enter the engine cylinders?
Yes. A significant gasket failure can allow cooling water to leak into the exhaust passages. If this water gets into the cylinders (a condition known as hydrolock), it can cause severe or catastrophic engine damage. This is why addressing leaks promptly is critical.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. All parts are manufactured in an ISO 9002 facility and are batch-inspected for quality and consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options will appear at checkout if available for your location.
Warranty & returns
This product is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window, provided the item is unused and in its original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards: We supply marine parts engineered to OEM-level tolerances and rigorously tested for real-world conditions.
- Fast Global Fulfillment: We offer free standard delivery to most regions, with typical transit times of 5–15 days.
- Manufacturer-Direct Value: By removing middlemen, we deliver fair pricing without compromising on materials or quality control.
Payment & Security
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