Honda Marine 4-Stroke 175HP Outboard Engine Parts

(16 products)

This page focuses on Honda 4-Stroke 175HP outboard engines and helps you find compatible parts and service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Honda parts collection, then 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/section.

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How to Identify Your 175HP Model

Locate the engine identification plate: typically on the right stern bracket and/or near the swivel bracket. Note the model (e.g., BF175A) and the serial number.
Decode suffixes: letters near the model often indicate shaft length (L/XL/XXL), rotation (standard vs. counter), and control style. This helps confirm gearcase and rigging parts.
4‑Stroke specifics: the BF175 family uses electronic fuel injection (PGM‑FI). Confirm the exact model code to ensure correct fuel, ignition, and cooling components.
Year range hints: BF175 models share many service parts with BF200/BF225 of the same family, but verify by serial number before ordering.

Platform Overview

Honda BF175 Family (PGM‑FI V6)

Feature	Description
Configuration	4‑Stroke, 60° V6, SOHC, EFI (PGM‑FI), displacement ~3.5L (shared architecture with BF200/BF225)
Common Models	BF175A (various shaft lengths and standard/counter‑rotation options)
Advantages	Strong mid‑range torque, smooth EFI starting/idle, widely supported service parts, robust cooling and charging systems
Notes	Many routine service items (impeller kits, anodes, filters, plugs) overlap with BF200/BF225 of the same generation; always confirm by model and serial number.

Routine Maintenance & Service Parts

Intervals below are general guidelines for typical recreational use. Always follow the official Honda service manual for your exact model, hours, and usage profile.

Item	Interval*	Remarks	Parts Link
Engine Oil & Filter	Every 100 hours or annually	Use NMMA FC‑W rated oil and quality filter; warm engine before draining for a complete change.	Oil Filters
Gearcase (Lower Unit) Oil	Every 100 hours or annually	Inspect magnet on drain plug; milky oil indicates water intrusion—service seals as needed.	Honda Lower Unit Seal Kits
Spark Plugs	Inspect 100 hours; replace 200 hours or as needed	Check gap and condition. Replace if fouled, worn, or out of spec.	Spark Plugs
Fuel Filter(s)	Every 100 hours or annually	Replace inline and/or under‑cowl filters; drain any water separators regularly.	Fuel Filters
Water Pump Impeller / Kit	Every 200 hours or 2–3 seasons	Critical for cooling. Replace sooner if stream weakens or overheat alarms occur.	Honda Water Pump Repair Kits
Anodes (Internal & External)	Inspect every 50 hours; replace when 50% depleted	Essential for corrosion protection—check more often in salt or brackish water.	Anodes

Frequently Used Parts Categories

Routine Service Kits – Service & Maintenance Kits
Cooling System – Honda Water Pump Repair Kits
Fuel System – Fuel Filters
Ignition / Electrical – Electrical Items, Starters
Lower Unit / Sealing – Honda Lower Unit Seal Kits
Corrosion Protection – Anodes
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Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak tell‑tale stream / overheat alarm	Inspect intake screens for blockage; verify impeller condition; confirm thermostat operation.	Water pump kit, thermostat, intake screen, anodes
Poor acceleration / power loss	Check prop for damage/cavitation; replace fuel filters; inspect spark plugs; ensure clean fuel.	Fuel filters, spark plugs, propeller, anodes (drag/corrosion)
Hard starting / rough idle	Verify battery state; inspect/replace plugs; check for water in separator; confirm clean idle air path.	Spark plugs, fuel filters/water separator, electrical items
Gearcase noise / metal on drain plug	Change gear oil and inspect magnet; if excessive debris or milky oil, service seals and bearings.	Lower unit seal kits, bearings, fresh gear oil

FAQs

Are parts interchangeable between BF175 and BF200/BF225?

Many routine service parts (impellers, anodes, filters, some ignition items) are shared across this V6 family. However, confirm by model code and serial number, and note shaft length and rotation to ensure gearcase compatibility.

When should the impeller be replaced?

Inspect each season and replace every 200 hours or 2–3 seasons, sooner if water flow weakens, you operate in sandy/muddy water, or an overheat alarm occurs.

How often should lower unit gear oil be changed?

Every 100 hours or annually. Check more frequently for water ingress (milky oil) or metal debris on the drain‑plug magnet.

What information helps confirm part compatibility?

Provide the full model code (e.g., BF175A), serial number, shaft length (L/XL/XXL), rotation (standard or counter), and any known year range. Photos of the nameplate also help.

Ready to find parts for your Honda BF175? Browse the main Honda collection and filter by horsepower, year, and category.

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