21496659 Turbocharger | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Holset HE500WG Turbocharger - Part Number: 21496659

Heavy-duty wastegated turbocharger for high-output Volvo Penta D11A marine engines. This unit is based on the Holset HE500WG platform and is cross-referenced to Holset 4033771H. It compresses intake air to increase cylinder air mass, power and combustion efficiency while the wastegate regulates maximum boost pressure. The application uses a water-cooled turbine housing and pneumatic wastegate control.

⚙️ Key Features

• Genuine Volvo Penta high-output marine turbocharger

• Holset HE500WG wastegated turbo platform

• Holset manufacturing reference 4033771H / 4033771

• Water-cooled turbine-housing configuration

• Suits D11A marine propulsion ratings up to the documented 670 hp calibration

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21281646 → Supersedes 21496659

OEM / Related Numbers:

• 21496659

• 21281646

• 3801486

• 3801405

• 3801221

• Holset 4033771H

• Holset 4033771

• Holset 3788863

• Holset 2836741

• Holset 2836749

• Holset 3772476

• Holset 3778869

• Holset 3781266

Aftermarket / Verified Equivalents:

• Turbochargers Direct: TUR-104655-TDR remanufactured HE500WG

• Recmar: REC21496659

• Holset service cartridge/CHRA: 4034062H

• Holset service repair kit: 3580762

🚤 Compatibility

Commonly used on:

• Volvo Penta D11A high-output marine propulsion engines

Typically suits:

• Engine models:

• D11A-A

• D11A-B

• D11A-C

• D11A-C MP

• D11A-D MP

• D11A-D IPS

• D11A-E

• D11A-E MP

• HP Range: Includes high-output applications up to approximately 670 hp

• Engine Type: 10.8/11-litre inline-six turbocharged marine diesel

• Fitment Note: Confirm the complete turbo data-plate number, exhaust housing and engine serial number because turbine housings and actuator settings differ by rating

🔌 Function

Uses exhaust-gas energy to compress intake air, increasing available oxygen for efficient combustion and rated engine power while the wastegate limits excessive boost.

Common signs of failure:

• Blue, grey or black exhaust smoke

• Reduced boost pressure, slow acceleration or loss of power

• High-pitched whine, scraping or siren noise

• Excessive oil in the compressor or turbine housing

• Excessive shaft movement or damaged compressor blades

• Coolant or exhaust leakage around the turbine housing

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging