# 27864850A02 Mercury MerCruiser Elbow Gasket | Genuine Quicksilver OEM Part

## 🔧 Product Description

**Genuine Quicksilver Dry Joint Restricted Exhaust Elbow Gasket - Part Number: 27-864850A02**

Genuine Quicksilver dry joint exhaust elbow gasket used between the manifold and riser / elbow on MerCruiser GM V6 and V8 dry joint exhaust systems. This is the restricted-flow style gasket used where the serial-numbered dry joint exhaust diagram specifies 27-864850A02.

## ⚙️ Key Features

-   Genuine Quicksilver OEM dry joint elbow gasket
-   Correct Mercury part number 27-864850A02
-   Restricted-flow dry joint gasket style
-   Used between exhaust manifold and riser / elbow
-   Fits MerCruiser GM V6 and V8 dry joint exhaust systems where specified
-   Must be replaced whenever the riser / elbow is removed

## 🚤 Compatibility

### Commonly used on

-   MerCruiser dry joint exhaust manifold and riser assemblies
-   MerCruiser GM V6 and V8 petrol engines from the dry-joint exhaust era
-   Exhaust elbow / riser service on 4.3L, 5.0L, 5.7L and 6.2L engines

### Typically suits

-   Engine models:
-   MerCruiser 4.3L dry joint exhaust applications, 2002 and newer where specified
-   MerCruiser 4.3L MPI Alpha / Bravo dry joint applications where specified
-   MerCruiser 5.0L dry joint exhaust applications where specified
-   MerCruiser 5.0L MPI Alpha / Bravo dry joint applications where specified
-   MerCruiser 5.7L dry joint exhaust applications where specified
-   MerCruiser 5.7L MPI Alpha / Bravo dry joint applications where specified
-   MerCruiser 350 MAG MPI dry joint exhaust applications where specified
-   MerCruiser 350 MAG MPI Horizon dry joint applications where specified
-   MerCruiser MX 6.2L MPI Bravo dry joint applications where specified
-   MerCruiser MX 6.2L MPI Horizon Bravo dry joint applications where specified
-   MerCruiser Scorpion / Black Scorpion dry joint exhaust applications where specified
-   Engine Type: MerCruiser GM V6 and V8 petrol engines with dry joint exhaust
-   Engine Range: 4.3L, 5.0L, 5.7L and 6.2L where specified
-   System Type: Exhaust elbow / riser gasket
-   Flow Type: Restricted

## 🔌 Function

The gasket seals the dry joint between the exhaust manifold and riser while controlling cooling-water flow through the restricted gasket passages.

## ⚠️ Common Signs of Failure

-   Water or rust staining at riser joint
-   Exhaust leak or ticking noise
-   Salt build-up around gasket face
-   Water intrusion risk at elbow joint
-   Gasket crushed, split or deteriorated
-   Riser removed and gasket requires replacement

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   27-864850A02 current OEM restricted dry joint gasket reference
-   27-864850A2 formatted service reference
-   27-864850A1 earlier related restricted dry joint gasket reference
-   27-864850 earlier gasket family reference

### OEM / Related Numbers

-   27-864850A02
-   864850A02
-   27864850A02
-   27-864850A2
-   864850A2
-   27-864850A1
-   864850A1
-   Dry joint restricted riser gasket
-   Exhaust elbow gasket
-   Riser gasket

### Aftermarket / Verified Equivalents

-   Sierra: 18-0722
-   Barr Marine: MC47-27-864850
-   H2O / aftermarket dry joint restricted gasket equivalents for 27-864850A02
-   Recmar / aftermarket restricted dry joint gasket equivalents
-   Match restricted-flow gasket style; do not substitute full-flow or closed gasket unless the cooling diagram calls for it

## 📦 Condition

-   Genuine Quicksilver part
-   Brand new
-   Supplied in original or equivalent packaging

## Details

- **Price:** 98.5 AUD
- **Vendor:** Quicksilver
- **Type:** Gaskets & Seals
- **Tags:** Quicksilver Marine Parts | Oils Service Kits & Engine Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 98.50 AUD | In stock |

## Images

- 27864850A02 Mercury MerCruiser Elbow Gasket | Genuine Quicksilver OEM Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/27864850a02-mercury-mercruiser-elbow-gasket-genuine-quicksilver-oem-part)
> Updated: 2026-09-06