Yanmar 4-Stroke 220HP Marine Engine Parts

(2 products)

This page is dedicated to Yanmar 4‑Stroke 220HP marine diesel engines. Use it to find compatible parts and service information, including maintenance tips, frequently replaced items, and troubleshooting guidance. You can also browse the main Yanmar collection. Scroll to the bottom of this page to start browsing parts for this engine. On the collection page, use the Filter & Sort controls to narrow results by horsepower, year range, and part category.

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How to Identify Your 220HP Model

Find the Yanmar nameplate: typically on the engine block or rocker cover. It shows the model code (e.g., 4LH‑STE, 4LHA‑DTE, 4LHA‑STP) and serial number.
Decode the suffix: letters often indicate turbo/aftercooler and specification package. Record any marine gear ID plate (e.g., Kanzaki/ZF model) as it can affect certain parts.
Distinguish platforms: 220HP engines are commonly from the inline‑4 4LH/4LHA family. Inline‑6 families (6LP/6LY) exist in nearby power ranges—count cylinders and note turbo/exhaust elbow layout to avoid mix‑ups.
Electronic vs. mechanical: if an ECU/ECM label is present, note its part tag; some sensors and filters differ from purely mechanical variants.

Platform Overview

Yanmar Inline‑4 Turbo Diesel (4LH / 4LHA family)

Feature	Description
Configuration	Inline‑4, 4‑stroke, direct‑injection marine diesel, turbocharged (many with aftercooler)
Common Models	4LH‑STE, 4LHA‑DTE, 4LHA‑STP (representative 200–240 HP variants)
Advantages	Compact footprint, strong mid‑range torque, straightforward maintenance, widely supported filters/impellers/anodes
Notes	Many service items share across suffixes, but verify by model + serial. Exhaust elbows and turbo parts are model‑specific—match casting/turbo tags during replacement.

Routine Maintenance & Service Parts

Intervals below are typical guidelines for Yanmar 4‑stroke marine diesels. Always follow the official service manual for your exact model, duty cycle, and operating environment.

Item	Interval*	Remarks	Parts Link
Engine oil + filter	Every 100 hours or annually	Use marine‑grade diesel oil; replace filter at each oil change	Yanmar Oil filters
Fuel filters (primary/secondary)	100 hours or each season; sooner with poor fuel	Drain water separators regularly; replace elements as needed	Yanmar Fuel filters
Air filter	Inspect 100 hours; replace 200–300 hours	Clean or replace sooner in dusty/salty environments	Yanmar Air filters
Water pump impeller	Annually or 100–200 hours	Replace sooner after dry‑run or overheat events	Impellers
Raw‑water pump (complete)	2–3 years, or if leaking/noisy	Rebuild/replace if seal weep or bearing play is present	Water pumps
Anodes (pencil/heat exchanger)	Inspect 50–100 hours; replace when 50% consumed	Critical for corrosion control in coolers and manifolds	Anodes
Drive belts	Inspect 100 hours; replace 200–300 hours	Check tension and glazing; carry a spare aboard	Belts
Marine gear oil (Kanzaki/ZF)	100–200 hours or annually	Follow gearbox spec (oil type/quantity); monitor for water contamination	Yanmar Service & Maintenance Kits
Exhaust mixing elbow (inspection)	200–300 hours or every 2 years	Replace if restricted, corroded, or leaking; critical for backpressure and cooling	Yanmar Elbows

Frequently Used Parts Categories

Service & Maintenance Kits – Yanmar Service & Maintenance Kits
Cooling System – Water pumps
Impellers – Impellers
Fuel Filters – Yanmar Fuel filters
Oil Filters – Yanmar Oil filters
Turbochargers – Yanmar Turbos
Exhaust Elbows – Yanmar Elbows

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak water flow or overheat alarm	Inspect sea strainer, intake, impeller, pump seals, thermostat, and heat‑exchanger anodes	Water pump impeller/kit, thermostat, anodes, complete pump
Poor acceleration or black smoke	Check air filter restriction, fuel filters, boost hoses, exhaust mixing elbow backpressure, turbo condition	Air filter, fuel filters, exhaust elbow, turbo components
Hard starting or rough idle	Verify battery voltage and cables, bleed fuel system, check for air leaks, assess glow plugs/injectors (as applicable)	Fuel filters, hoses/clamps, electrical items, injector service
Gearbox noise or milky oil	Check marine gear oil level/condition, cooler leaks, alignment, and prop condition	Service kit, oil seals, gaskets, cooler service parts

FAQs

Are parts interchangeable between different years or platforms?

Some filters and anodes overlap across 4LH/4LHA variants, but turbos, elbows, pumps, and sensors can differ by suffix and serial range. Always match parts to your exact model and serial.

When should the raw‑water impeller be replaced?

Replace annually or every 100–200 hours. Change sooner if the pump ran dry, the telltale stream weakens, or after any overheat event.

How often should marine gear oil be changed?

Typically every 100–200 hours or annually, following the gearbox manufacturer’s specification for oil type and interval. Inspect for water contamination and metallic debris at each service.

What information helps confirm part compatibility?

Provide the engine model (e.g., 4LHA‑STP), full serial number, marine gear model, and photos of the nameplate, turbo tag, and exhaust elbow casting if applicable.

Ready to find what you need? Browse the main Yanmar collection by horsepower, year, and model to locate compatible parts for your 220HP engine.

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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.