864591T02 Mercury MerCruiser Elbow Exhaust Dry Joint | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Dry Joint Exhaust Elbow - Part Number: 864591T02

A genuine Quicksilver dry-joint exhaust elbow / riser for MerCruiser V6 and V8 petrol engines using the centre-riser dry-joint exhaust system. This 14-degree exhaust elbow helps route exhaust gases and cooling water safely away from the engine while reducing the risk of water reversion through the dry-joint design.

⚙️ Key Features

• Genuine Quicksilver OEM dry-joint exhaust elbow

• Correct Mercury part number 864591T02

• 14-degree dry-joint centre-riser exhaust elbow

• Used on selected 4.3L V6, 5.0L, 5.7L and 6.2L V8 MerCruiser engines

• Replaces earlier 864309T01 exhaust elbow reference

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 864591T02 → Supersedes 864309T01

• 864309T01 earlier OEM exhaust elbow reference

OEM / Related Numbers:

• 864591T02

• 864591T

• 864309T01

• 864591-C casting reference

Aftermarket / Verified Equivalents:

• Sierra: 18-1845

• Recmar: REC864591T02

🚤 Compatibility

Commonly used on:

• MerCruiser V6 and V8 dry-joint exhaust systems

Typically suits:

• Engine models:

• MerCruiser 4.3L V6 engines with centre-riser dry-joint exhaust

• MerCruiser 5.0L V8 engines with centre-riser dry-joint exhaust

• MerCruiser 5.7L V8 engines with centre-riser dry-joint exhaust

• MerCruiser 350 MAG MPI engines with dry-joint exhaust where 864591T02 is specified

• MerCruiser 6.2L MPI engines with centre-riser dry-joint exhaust

• MerCruiser V6 / V8 GM engines with 14-degree dry-joint riser layout through 425HP where specified

• MerCruiser 2002 and newer MIE GM V8 350 / 377 CID dry-joint exhaust applications, serial 0M317000 and up where specified

• HP Range: V6 / V8 MerCruiser applications through 425HP where specified

• Engine Type: MerCruiser GM petrol V6 / V8

• System Type: Dry-joint exhaust elbow / riser

🔌 Function

The exhaust elbow routes exhaust gases and cooling water from the manifold into the exhaust hose while maintaining the dry-joint separation design at the manifold connection.

Common signs of failure:

• Rust staining around elbow joint

• Water leakage at the riser gasket area

• Internal corrosion or restricted water passages

• Exhaust fumes or water seepage

• Water intrusion risk from corroded exhaust elbow

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging