# 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

## Details

- **Price:** 3300.0 AUD
- **Vendor:** Recmar
- **Tags:** Sawley’s AAM Aftermarket – Turbochargers | Marine Turbochargers & Engine Boost Systems

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3300.00 AUD | In stock |

## Images

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

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3801173-volvo-penta-d4-turbocharger-300hp-vlv-3887963-rec3801173)
> Updated: 2026-07-11