Volvo Penta 4-Stroke 440HP Marine Engine Parts

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This page is dedicated to Volvo Penta 4‑Stroke 440HP marine engines (e.g., D6‑440). Use it to find compatible parts and service information, including maintenance tips, commonly replaced components, and troubleshooting guidance. You can also browse our main Volvo Penta collection. Scroll to the bottom to start browsing parts for this engine, and on any collection page use the Filter & Sort controls to refine by horsepower, year range, and part category/section.

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How to Identify Your 440HP Model

Locate the engine identification plate on the top/front of the engine (often on the rocker/valve cover) or on the starboard side of the block. Record the full model designation and serial number.
Read the model code: for example, D6‑440 variants may include suffixes that denote emission generation and control system (EVC), as well as drive type (inboard shaft vs. sterndrive).
4‑Stroke common‑rail diesel characteristics: D6‑series engines typically use an electronically controlled common‑rail fuel system with turbocharging; many 440HP variants also incorporate a supercharger for low‑rpm boost.
Confirm the drive: If paired with a sterndrive (e.g., DPH/DPS), gearcase service parts (propellers, seals, anodes) are drive‑specific; inboard shaft installations will use different running gear.

Platform Overview

Volvo Penta D6‑440 Marine Diesel

Feature	Description
Configuration	Inline‑6, 4‑stroke, common‑rail diesel with turbocharger; many variants include a belt‑driven supercharger for strong low‑rpm torque.
Common Models	D6‑440 marine diesel in inboard or sterndrive configurations (EVC‑controlled). Always verify with the full model and serial number.
Advantages	High torque, efficient cruise fuel economy, broad powerband, and refined electronic control.
Notes	Service parts (filters, belts, anodes, raw‑water pump components) are typically shared within the D6 family but can vary by serial range and drive. Confirm by engine/drive serials before ordering.

Routine Maintenance & Service Parts

Intervals below are general guidelines for many diesel inboard/sterndrive applications. Always follow the Volvo Penta service manual for your exact engine and drive.

Item	Interval*	Remarks	Parts Link
Engine oil + filter	Every 100 hours or annually	Use marine‑approved diesel oil; replace filter at each oil change.	Volvo Penta Service Kits
Fuel filters (primary/secondary)	Every 200 hours or annually (sooner if fuel quality is uncertain)	Drain water separators regularly; carry spares on board.	Volvo Penta Fuel Filters
Raw‑water pump impeller/kit	Every 200 hours or 2 years (inspect each season)	Replace sooner if overheat, weak telltale, or vane set observed.	Volvo Penta Water Pump Repair Kits
Anodes (engine/drive)	Inspect every 50 hours; replace when ~50% consumed	Use correct alloy (zinc/aluminum/magnesium) for your water type.	Volvo Penta Anodes
Air filter	Inspect 200 hours; replace as required	Restricted filters raise smoke and EGT under load.	Volvo Penta Air Filters
Serpentine/drive belt	Inspect every 100 hours; replace 300–400 hours or if cracked/noisy	Check tensioner/idler condition during belt service.	Belts
Sterndrive gear oil (if equipped)	Every 100 hours or annually	Monitor for water intrusion (milky oil) and metal on the drain plug magnet.	Volvo Penta Collections

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak water flow or overheat alarm	Inspect seawater intake screen/strainer, raw‑water impeller, and hoses; verify thermostat operation.	Water pump repair kit, impeller, thermostat, intake screen/strainer, hoses/clamps.
Poor acceleration or power loss under load	Check fuel quality, replace fuel filters, inspect charge‑air hoses and clamps for leaks; verify turbo/supercharger drive condition.	Fuel filters, air filter, turbo hoses/clamps, sensors (MAP/MAP temp), belt/tensioner.
Hard starting or rough idle	Prime/bleed fuel system, inspect for air leaks at filter heads and lines, test batteries and connections; read fault codes.	Fuel filters, sensors, battery cables, service kit items.
Gearcase noise or metal in gear oil (sterndrive)	Check oil level/condition, water intrusion, propeller shaft for fishing line, and seal surfaces.	Seal kit, bearings, propeller hardware, gear oil, bellows (as applicable).
Excess smoke (black/soot) at throttle‑up	Inspect/replace air filter, verify boost hoses/clamps, and check for fouled aftercooler.	Air filter, hoses, clamps, aftercooler service gaskets, turbo components.

FAQs

Are parts interchangeable between different D6 years or platforms?

Many routine service items are shared across the D6 family, but changes by serial range, emission generation, and drive type can affect fit. Always confirm with your full engine and (if applicable) drive serial numbers.

When should the raw‑water impeller be replaced?

As a rule of thumb, replace every 200 hours or two seasons—sooner if you experience overheat events, weak telltale flow, or find damaged vanes during inspection.

How often should sterndrive gear oil be changed?

Typically every 100 hours or annually. Always replace contaminated (milky) oil immediately and investigate seals or water intrusion sources.

What information do you need to confirm compatibility?

Provide the engine model and full serial number, drive model/serial (if sterndrive), installation type (inboard vs. sterndrive), and the specific part or system you are servicing.

Ready to find the right parts? Browse the main Volvo Penta collection and refine by horsepower, year, and model to locate compatible components for your D6‑440.

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If you’re unsure about your model, send us a clear photo of the nameplate and the part you need, and we’ll help verify compatibility.