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Full Flow Dry Joint Exhaust Elbow Gasket – Fits MerCruiser V6 & V8 (Replaces 27-864547A02, 864547A1)
- $26.00
$59.00- $26.00
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Full Flow Dry Joint Exhaust Elbow Gasket – Fits MerCruiser V6 & V8
This full flow dry joint exhaust gasket is designed for MerCruiser 4.3L, 5.0L, 5.7L, 6.2L, and 6.3L V6 and V8 stern drive and inboard engines manufactured in 2002 and newer. It provides a reliable seal between the exhaust manifold and the elbow/riser.
This part is a direct replacement for MerCruiser part numbers 27-864547A02 and 864547A1, as well as Sierra 18-0721.
- Gasket Style: Full Flow (Open) for standard cooling systems.
- Installation Type: Designed specifically for dry joint exhaust systems.
- Material: Constructed from durable metal to withstand the harsh marine environment.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| MerCruiser | 27-864547A02 |
| MerCruiser | 864547A1 |
| Sierra | 18-0721 |
Compatible Engine Models
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| MerCruiser | 350 MAG | Various | 4-Stroke | 2002 and newer | 27-864547A02 | Dry joint exhaust manifolds only |
| MerCruiser | 4.3L | Various | 4-Stroke | 2002 and newer | 27-864547A02 | Dry joint exhaust manifolds only |
| MerCruiser | 5.0L | Various | 4-Stroke | 2002 and newer | 27-864547A02 | Dry joint exhaust manifolds only |
| MerCruiser | 5.7L | Various | 4-Stroke | 2002 and newer | 27-864547A02 | Dry joint exhaust manifolds only |
| MerCruiser | 6.2L | Various | 4-Stroke | 2002 and newer | 27-864547A02 | Dry joint exhaust manifolds only |
| MerCruiser | 6.3L | Various | 4-Stroke | 2002 and newer | 27-864547A02 | Dry joint exhaust manifolds only |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Exhaust Elbow/Riser Gasket |
| Installation | Dry Joint Type |
| Gasket Style | Full Flow (Open) |
| Material | Metal |
| Shape | Rectangular |
| Application | Exhaust Manifold to Elbow/Riser |
| Engine Type | V6 & V8 MerCruiser Stern Drive and Inboard Engines |
| Engine Compatibility | 4.3L, 5.0L, 5.7L, 6.2L, 6.3L |
| Engine Year Range | 2002 and newer |
| Warranty | Varies by manufacturer (typically 1-2 years) |
Package Contents
- 1 x Dry Joint Gasket Open (27-864547A02)
Installation Guide
- Ensure the engine is completely cool and disconnect the battery.
- Drain the engine coolant from the exhaust manifold to a level below the riser joint.
- Unbolt and carefully remove the exhaust elbow/riser from the manifold.
- Thoroughly clean both mating surfaces. Remove all traces of old gasket material, rust, and debris until the surfaces are smooth and bare.
- Position the new dry joint gasket onto the manifold, ensuring it is correctly aligned with the bolt holes and passages.
- Reinstall the exhaust elbow/riser. Hand-tighten the bolts first, then torque them to the manufacturer's specified sequence and values.
- Refill the cooling system, reconnect the battery, and start the engine.
- Carefully inspect the gasket area for any signs of water or exhaust leaks.
Troubleshooting & FAQ
Q: Is this gasket for catalyzed or non-catalyzed engines?
A: This is a full flow (open) gasket, typically used on engines without catalytic converters. Engines with catalytic converters often require a restricted gasket (with a smaller opening) to create appropriate backpressure. Always match the new gasket to your original part.
Q: What are the signs my exhaust elbow gasket has failed?
A: Common symptoms of a failed gasket include external water leaks from the joint between the manifold and riser, engine overheating, or a loss of performance. In severe cases, it can lead to water intrusion into the cylinders, causing significant engine damage.
Q: Do I need to use sealant with this gasket?
A: No. Dry joint gaskets are designed to be installed dry. The use of sealant can interfere with the seal and may cause premature failure. Ensure both mating surfaces are perfectly clean and flat before installation.
Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
- Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
- Fast Global Shipping: Free delivery worldwide in 5–15 days.
- Direct from Manufacturer: Competitive pricing without compromising quality.
Мы осуществляем доставку практически по любому адресу в мире, при этом для большинства регионов доступна бесплатная доставка.
Для наших типичных клиентов из США и Канады сроки доставки следующие:
- Amazon FBA : заказы будут доставлены в течение 1–5 рабочих дней после размещения заказа (в определенные особые периоды, такие как крупные акции, Рождество и т. д., время доставки Amazon FBA может быть изменено).
- Доставка со склада в США : заказы будут доставлены в течение 7 дней после размещения заказа.
- Доставка со склада в Китае : заказы будут доставлены примерно через 12 дней после размещения заказа.
Когда вы размещаете заказ, мы оценим даты отправки и доставки для вас на основе доступности ваших товаров и выбранных вами вариантов доставки. В зависимости от выбранного вами поставщика услуг доставки, предполагаемые даты доставки могут отображаться на странице расценок на доставку.
Также обратите внимание, что стоимость доставки многих товаров, которые мы продаем, основана на весе. Вес любого такого товара можно найти на странице с его подробностями. Чтобы отразить политику транспортных компаний, с которыми мы работаем, все веса будут округлены до следующего целого фунта.
Основанная в 2002 году, компания JLM Marine зарекомендовала себя как специализированный производитель высококачественных морских деталей, базирующийся в Китае. Наша приверженность совершенству в производстве заслужила нам доверие ведущих мировых морских брендов.
Как прямой поставщик, мы обходим посредников, что позволяет нам предлагать конкурентоспособные цены без ущерба качеству. Такой подход не только поддерживает экономическую эффективность, но и гарантирует, что наши клиенты получают наилучшую ценность напрямую от источника.
Мы рады расширить свое присутствие через розничные каналы, предлагая наш опыт и приверженность качеству непосредственно владельцам и любителям лодок по всему миру.
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