3801173 Aftermarket Volvo Penta D4 Turbocharger 300hp 3887963 | Sawley's Select Marine Parts

🔧 Product Description

Sawley's Select Marine Parts BorgWarner-Spec K26 Aftermarket Turbocharger - Part Number: 3801173

A new direct-fit aftermarket marine turbocharger manufactured to replace the BorgWarner K26 unit fitted to Volvo Penta D4-300 diesel engines.

This turbocharger is matched to the 3.7-litre inline four-cylinder D4 common-rail engine. It replaces the original Volvo Penta turbocharger reference 3887963 and corresponds with Volvo Penta remanufactured or exchange number 3801173.

⚙️ Key Features

• Direct-fit aftermarket replacement for Volvo Penta 3801173 and 3887963

• BorgWarner K26 marine turbocharger specification

• Designed specifically for Volvo Penta D4-300 engines

• Suits Aquamatic, inboard and commercial-drive configurations

• Extensive BorgWarner and aftermarket cross-reference coverage

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 3887963 current new Volvo Penta turbocharger reference

• 3801173 Volvo Penta remanufactured / exchange reference corresponding to 3887963

• 3835914 earlier related Volvo Penta turbocharger reference

• 3829638 earlier related Volvo Penta turbocharger reference

OEM / Related Numbers:

• Volvo Penta: 3801173

• Volvo Penta: 3887963

• Volvo Penta: 3835914

• Volvo Penta: 3829638

• Volvo Penta: 23027443

• BorgWarner: 53269987105

• BorgWarner: 53269887105

• BorgWarner: 53269707105

• BorgWarner: 5326-998-7105

• BorgWarner: 5326-988-7105

• BorgWarner: 5326-970-7105

• BorgWarner: K26

• BorgWarner: K26-3071QYAKB8.72GAAXB

• Mounting gasket set: 3588435

• Recmar mounting gasket: REC3588435

Aftermarket / Verified Equivalents:

• Recmar: REC3801173

• Repower Marine: RM3801173

• BorgWarner: 53269987105

• BorgWarner: 53269887105

• BorgWarner: 53269707105

• Goldfarb Reman: 53269987105DRR

🚤 Compatibility

Commonly used on:

• Volvo Penta D4-300 common-rail marine diesel engines

• Aquamatic sterndrive, inboard and commercial-drive propulsion packages

Typically suits:

• Engine models:

• Volvo Penta D4-300A-A

• Volvo Penta D4-300A-C

• Volvo Penta D4-300A-D

• Volvo Penta D4-300A-E

• Volvo Penta D4-300A-F

• Volvo Penta D4-300D-A

• Volvo Penta D4-300D-C

• Volvo Penta D4-300D-D

• Volvo Penta D4-300D-E

• Volvo Penta D4-300D-F

• Volvo Penta D4-300I-A

• Volvo Penta D4-300I-C

• Volvo Penta D4-300I-D

• Volvo Penta D4-300I-E

• Volvo Penta D4-300I-F

• HP Range: 300HP

• Engine Type: 3.7L inline four-cylinder, four-stroke, common-rail, turbocharged and intercooled marine diesel

• Rated Speed: 3500rpm

• Year Range: Approximately November 2006 onward, dependent on engine suffix and production number

🔌 Function

The turbocharger converts exhaust-gas energy into compressor-wheel rotation. Pressurised air is supplied through the charge-air cooler, allowing the D4-300 engine to produce its rated power and torque efficiently.

Common signs of failure:

• Reduced boost and slow vessel acceleration

• Engine cannot reach rated rpm

• Excessive black smoke during acceleration

• Blue smoke or increased lubricating-oil use

• Whining, scraping, siren or grinding noises

• Oil present in the compressor outlet or charge-air cooler

• Excessive shaft movement

• Compressor or turbine wheel damage

📦 Condition

• Sawley's Select Marine Parts aftermarket replacement

• Brand new

• Supplied in original or equivalent packaging