21570539 Compensator | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta 21570539 - Part Number: Exhaust Compensator

A genuine flexible exhaust compensator used on Volvo Penta TWD1644GE and TWD1645GE generator-drive engines. It absorbs thermal expansion, vibration and minor installation movement between rigid exhaust components, reducing stress on the outlet, fasteners and downstream pipework.

⚙️ Key Features

• Genuine Volvo Penta exhaust-system compensator

• Flexible construction absorbs heat expansion and vibration

• Used in TWD1644GE / TWD1645GE exhaust-outlet assemblies

• Designed for high-temperature industrial diesel exhaust

• Protects adjoining rigid exhaust components from fatigue loading

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21570539 (current OEM reference)

OEM / Related Numbers:

• 21562753 - exhaust outlet

• 467310 - V-clamp

• 969011 - gasket

• 3849220 - gasket

• 994441 - flange screw

• 990950 - flange lock nut

• 994411 - hexagon screw

• 990972 - hexagon nut

• 994896 - spring washer

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta TWD16 generator-drive exhaust systems

Typically suits:

• Engine models:

• TWD1644GE

• TWD1645GE

• HP Range: Generator rating dependent

• Engine Type: 16.1L inline six-cylinder turbocharged generator diesel

• Year Range: Approximately 2015 - 2025 production-era applications

• Fitment Note: Confirm the exhaust arrangement and engine serial number before ordering.

🔌 Function

Allows controlled movement between rigid exhaust sections as the system heats, cools and vibrates, preventing excessive load at the turbocharger and exhaust-outlet flanges.

Common signs of failure:

• Exhaust soot or gas leakage around the flexible section

• Cracking, fraying or distortion

• Metallic rattling under load

• Excessive movement of adjoining exhaust pipework

• Repeated gasket or flange failure caused by a seized compensator

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging