Volvo Penta 4-Stroke 370HP Marine Engine Parts

(3 products)

This page is tailored for Volvo Penta 4-Stroke 370HP outboard engines and helps you quickly find compatible parts and service information. Inside you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Volvo Penta collection. Scroll to the bottom of the page to start browsing parts for this engine, and remember you can use the “Filter & Sort” controls on the collection page to narrow results by horsepower, year range, and part category/section.

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How to Identify Your 370HP Model

Find the engine identification plate: typically on the engine block or top cover; on sterndrive packages you may also see a tag on the transom shield/drive.
Read the model code and suffix: for example “D6‑370” followed by letters/numbers indicating revision level and electronic control generation (e.g., EVC). The suffix can affect parts such as sensors, wiring, and brackets.
Note the installation type: inboard, V‑drive, or sterndrive (AQ/DP). Exhaust elbows, raw-water routing, and some cooling components differ by configuration.
Capture the serial/production number: many service items (filters, impellers, alternators) have serial‑range changes; use serials to refine parts selection.

Engine Platform Overview

Volvo Penta D6‑370 Platform

Feature	Description
Configuration	Inline‑6, common‑rail 4‑stroke diesel, turbocharged with compressor (supercharger) and EVC electronic controls.
Common Models	D6‑370 variants (e.g., D6‑370D) used in inboard, V‑drive, and sterndrive packages.
Advantages	High torque across the rev range, strong mid‑range performance, efficient fuel consumption, robust cooling and charging systems.
Notes	Many parts are serial‑range specific. Exhaust elbows (AQ, inboard, V‑drive), alternator brackets, and raw‑water pump details may vary by year/configuration. Confirm serial and installation type before ordering.

Routine Maintenance & Service Parts

Intervals below are typical guidelines for heavy‑duty marine diesels; always follow your official Volvo Penta service manual and local duty cycle requirements.

Item	Interval*	Remarks	Parts Link
Engine oil & filter	Every 200 hrs or annually	Use marine‑grade oil meeting manufacturer specs; replace filter with each oil change.	Oil Filters
Primary/secondary fuel filters	Every 200 hrs or annually (or if contaminated)	Replace both the on‑engine and pre‑filter/separator elements as required.	Volvo Penta Fuel filters
Air filter	Inspect 100 hrs; replace 200–400 hrs	Restricted filters reduce boost and increase smoke; replace sooner in dusty/salty environments.	Volvo Penta Air Filters
Raw‑water pump impeller	Every 200 hrs or 1–2 seasons	Replace proactively; inspect cam plate and housing for wear.	Volvo Penta Impellers
Anodes (engine/drive)	Inspect 50–100 hrs; replace when 50% consumed	Match anode material to water type (salt, brackish, fresh) to protect coolers and drive.	Volvo Penta Anodes
Gear oil (sterndrive)	Every 100 hrs or annually	Check for water intrusion (milky oil). Replace sealing washers; pressure/vac test if needed.	Volvo Penta
Drive seals (if leaks found)	As needed	Service seals and pressure test if water or metal is found in gear oil.	Volvo Penta Lower Unit Seal Kits
Belts (serpentine/alternator)	Inspect 100 hrs; replace 400–600 hrs or if cracked/noisy	Check tensioners and idlers; glazing or dust indicates slip/wear.	Belt
Thermostat	2–3 years or if temperature control is unstable	Replace if overheating or slow warm‑up persists after basic checks.	Volvo Penta

*Intervals are general recommendations; confirm for your serial range and duty cycle.

Frequently Used Parts Categories

Routine Service: Volvo Penta Service & Maintenance Kits
Cooling System: Volvo Penta Water pumps
Fuel System: Volvo Penta Fuel filters
Air & Filtration: Volvo Penta Air Filters
Ignition / Electrical: Volvo Penta Starters
Exhaust Components: Volvo Penta Manifolds
Corrosion Protection: Volvo Penta Anodes

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
High temperature or overheat alarm	Inspect sea‑water intake screen/strainer, raw‑water pump impeller, coolant level, and heat exchanger for fouling.	Water pump kit, impeller, thermostat, anodes, intake screen/strainer gaskets.
Poor acceleration or loss of power	Check fuel quality, replace primary/secondary filters, inspect charge‑air hoses and aftercooler for leaks/restriction; verify turbo actuation.	Fuel filters, air filter, turbocharger, charge‑air hoses, sensors.
Hard starting or rough idle	Confirm battery voltage and starter performance; purge air from fuel system; check glow‑plug circuit and high‑pressure fuel supply.	Starter, sensors, fuel lift pump, fuel filters, wiring harness components.
Gearcase noise or milky gear oil	Inspect prop for damage, verify oil level/condition, pressure test drive for leaking seals.	Propellers, lower‑unit seal kit, bearings, sealing washers.
Black smoke or soot under load	Check for restricted air filter, intercooler fouling, or fueling imbalance; verify boost leaks.	Air filter, hoses, injectors, turbocharger, aftercooler service parts.

FAQs

Are parts interchangeable between different D6‑370 years or configurations?

Some service items are common, but many components (cooling, exhaust elbows, sensors, brackets) vary by serial range and installation type (inboard, V‑drive, sterndrive). Always confirm serial and configuration before ordering.

When should the raw‑water impeller be replaced?

Replace every 200 engine hours or 1–2 seasons, whichever comes first, or immediately if blades show set, cracks, or missing tips. Inspect the pump housing and cam for wear during service.

How often should sterndrive gear oil be changed?

Change every 100 engine hours or annually. If the oil appears milky or metallic, pressure test the drive and service seals before returning to service.

What information do I need to confirm part compatibility?

Provide the full model designation (e.g., D6‑370) plus the engine serial/production number and the installation type (inboard, V‑drive, or sterndrive). Photos of the nameplate and the parts you’re replacing also help ensure a correct match.

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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.