27863724 Mercury MerCruiser Restrictor Gasket | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Restricted Exhaust Elbow Gasket - Part Number: 27-863724

Genuine Quicksilver restricted-flow exhaust elbow gasket used between the manifold and riser / elbow on MerCruiser wet-joint centre-rise exhaust systems. This partially open restrictor gasket is used on standard-cooling MerCruiser GM V6 and V8 applications where the cooling system requires restricted riser flow.

⚙️ Key Features

• Genuine Quicksilver OEM restrictor gasket

• Correct Mercury part number 27-863724

• Listing reference: 27863724

• Restricted-flow wet-joint elbow gasket

• Used on standard-cooling centre-rise exhaust systems

• Not the full-flow 27-863726 gasket and not for dry-joint exhaust systems

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 27-863724 current OEM restricted gasket reference

• 27-41313 related earlier restrictor gasket reference

• 27-41813 related earlier restrictor gasket reference where specified

OEM / Related Numbers:

• 27-863724

• 863724

• 27863724

• 27-41313

• 41313

• 27-41813

• 41813

• Restrictor gasket

• Restricted exhaust elbow gasket

• Standard cooling riser gasket

• Wet-joint riser gasket

• 27-863726 related full-flow gasket

Aftermarket / Verified Equivalents:

• Sierra: 18-0897

• Barr / Osco restricted wet-joint gasket equivalents where matched

• Recmar / RM0897 restricted riser gasket equivalent

• Aftermarket 27-863724 / 27-41313 / 27-41813 restrictor gasket replacements

• Do not substitute full-flow or block-off gaskets unless the cooling diagram requires them

🚤 Compatibility

Commonly used on:

• MerCruiser standard-cooling wet-joint exhaust systems

• GM V6 and V8 centre-rise manifold / riser joints

• Restricted cooling flow exhaust configurations

Typically suits:

• Engine models:

• MerCruiser 4.3L GM V6 centre-rise wet-joint exhaust applications

• MerCruiser 5.0L GM V8 centre-rise wet-joint exhaust applications

• MerCruiser 5.7L GM V8 centre-rise wet-joint exhaust applications

• MerCruiser 6.2L GM V8 wet-joint exhaust applications where specified

• MerCruiser 7.4L / 454 big-block wet-joint exhaust applications where specified

• MerCruiser 8.2L / 502 big-block wet-joint exhaust applications where specified

• MerCruiser GM V6 / V8 standard-cooling centre-rise manifolds, commonly 1981-1997 service families where 27-863724 is specified

• Engine Type: MerCruiser GM V6 and V8 petrol engines with wet-joint centre-rise exhaust

• System Type: Exhaust elbow / riser restrictor gasket

• Flow Type: Restricted / standard cooling

🔌 Function

The gasket seals the manifold-to-riser joint while restricting cooling-water flow through the riser passages according to the engine cooling design.

Common signs of failure:

• Rust staining around riser joint

• Exhaust leak or ticking noise

• Water leakage at gasket face

• Riser removed during exhaust service

• Wrong full-flow gasket installed in a restricted system

• Gasket crushed, split or delaminated

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging