21187493 Exhaust Riser Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D6 Marine Exhaust Riser Kit Installation Kit - Part Number: 21187493

A genuine Volvo Penta exhaust riser kit for a D6 marine wet-exhaust installation. The factory assembly carries water-cooled exhaust away from the turbocharger while maintaining the designed outlet height, hose direction, sensor position and thermal protection.

Volvo Penta produced several D6 riser and pipe geometries for inboard, Aquamatic and vessel-specific layouts. Engine product number, serial number, outlet orientation and exhaust-hose position must therefore be matched before ordering.

⚙️ Key Features

• Genuine Volvo Penta D6 exhaust riser kit

• Factory stainless / corrosion-resistant exhaust construction

• Designed for water-cooled marine exhaust service

• Includes the sealing and retention pieces supplied with the kit

• Installation geometry controlled by engine and vessel exhaust layout

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21187493 current / original OEM exhaust riser kit reference for its specified D6 installation

• Later 226712xx / 229488xx exhaust kits are related D6 revisions and are not automatic substitutes

OEM / Related Numbers:

• 21187493

• 21325765 / 21325767 related Volvo Penta V-clamp families - installation dependent

• 3817196 related exhaust insulation

• 21673187 related exhaust-temperature sensor

• 961671 / 961672 related exhaust-hose clamp families

• Volvo Penta D6 exhaust hose and turbocharger outlet components

Aftermarket / Verified Equivalents:

• Mopa Motorparts: OEM-quality exhaust pipe / riser by comparison number 21187493

• Marine stainless-fabrication specialist: custom replacement only after exact dimensional verification

📦 Kit Contents

• 21187493 formed exhaust riser / pipe assembly - 1

• 21187493 exhaust flange and sealing components - 1 set

• 21187493 V-clamp / retaining components - 1 set

• 21187493 insulation and mounting components - as supplied

• Volvo Penta does not publish separate service numbers for every component inside this kit; included pieces are serviced under kit number 21187493

• Temperature sensor, external exhaust hose and vessel-specific hose clamps are not confirmed as included

🚤 Compatibility

Commonly used on:

• Volvo Penta D6 inboard and Aquamatic water-cooled exhaust systems

• Vessel installations whose Volvo Penta exhaust drawing specifies this exact kit number

Typically suits:

• Engine models / systems:

• Volvo Penta D6-280, D6-300, D6-310, D6-330, D6-350, D6-370, D6-400 and D6-435 engine families only where the installation drawing specifies this exact kit

• D6 marine propulsion packages with the matching turbo outlet, riser height and exhaust-hose orientation

• HP Range: Approximately 280HP - 435HP, dependent on D6 version

• Engine Type: Volvo Penta 5.5-litre inline 6-cylinder common-rail marine diesel wet-exhaust system

• Year Range: Approximately mid-2000s - 2010s

• Fitment Note: Compare riser height, outlet angle, turbo flange, sensor provision and hose diameter; this configuration differs from 21187491

🔌 Function

The assembly routes turbocharger exhaust into the water-cooled exhaust hose, controls outlet geometry and protects nearby engine-room components from heat.

Common signs of failure:

• Cooling water or exhaust gas leaks from the riser

• Internal corrosion perforates the water jacket

• Exhaust backpressure rises because the passage is restricted

• V-clamp, flange or weld develops cracking

• Exhaust-temperature alarms occur from poor cooling-water flow

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging