Tohatsu 2-Stroke Outboard Marine Engine Parts

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This page is for Tohatsu 2‑Stroke outboard engines. It helps you find compatible parts and service information, with maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Tohatsu collection. Scroll to the bottom of this page to start browsing parts for your 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 Tohatsu 2‑Stroke Model

Nameplate location: Find the model/serial plate on the transom bracket or clamp bracket; a secondary sticker may be under the engine cowling.
Model code and suffix: The core model is followed by suffix letters that indicate shaft length (S/L/XL), control type (tiller vs. remote), and starting system (manual vs. electric). Year codes may be embedded or shown separately.
2‑Stroke specifics: If oil‑injected, look for an oil tank and lines; premix models will not have an oil reservoir. Note the number of cylinders and carburetors to distinguish platform families.
Record details: Capture the full model code, serial number, and any suffix letters before ordering parts for the best compatibility match.

Engine Platform Overview

Portable 2‑Stroke (small displacement)

Feature	Description
Configuration	Carbureted 2‑Stroke, single or inline‑2 cylinder, manual start common
Common Models	Portable 2‑Stroke outboards in the low‑hp range
Advantages	Very light weight, simple maintenance, easy to transport
Notes	Routine service focuses on spark plugs, fuel filter, and impeller; verify shaft length for prop and gearcase parts

Midrange 2‑Stroke (general‑purpose)

Feature	Description
Configuration	Carbureted 2‑Stroke inline‑2 or inline‑3, manual or electric start, tiller or remote
Common Models	General midrange 2‑Stroke outboards used for fishing and utility boats
Advantages	Strong hole‑shot, straightforward tuning, broad parts availability
Notes	Water pump and gearcase service are key to reliability; confirm gear ratio and prop spline when selecting propellers

Direct‑Injection 2‑Stroke (selected models)

Feature	Description
Configuration	Direct‑injection 2‑Stroke with specialized fuel/air components
Common Models	Select higher‑output 2‑Stroke variants
Advantages	Improved fuel economy and emissions compared to carbureted 2‑Strokes
Notes	Many parts are platform‑specific; verify model code carefully before ordering fuel/air components

Routine Maintenance & Service Parts

Intervals below are general guidelines; always follow the service schedule and specifications in your official Tohatsu owner’s manual.

Item	Interval*	Remarks	Parts Link
Gear oil (lower unit)	Every 100 hours or annually	Check for water intrusion or metal flake; reseal if contamination is found	Tohatsu Outboard Parts
Spark plugs	Every 100 hours or annually	Use the specified heat range; set gap to spec; replace if fouled or worn	Spark Plugs
Fuel filter / water separator	Every 100 hours or sooner in poor fuel conditions	Replace element and inspect fuel lines for softness or cracking	Fuel Filters
Water pump impeller / kit	Every 2–3 seasons or ~200 hours	Replace sooner if tell‑tale is weak or overheat alarm sounds	Tohatsu Water Pump Repair Kits
Anodes (internal & external)	Inspect often; replace when ~50% consumed	Use alloy type appropriate for your water (fresh/brackish/salt)	Anodes
Oil‑injection system (if equipped)	Annually	Inspect tank screen, lines, and pump operation; purge air after service	Hoses
Premix fuel/oil (non‑injection)	Every refuel	Mix at the ratio specified in your manual; use fresh fuel and TC‑W3 2‑Stroke oil	Tohatsu Outboard Parts

Frequently Used Parts Categories

Routine Service — Tohatsu Outboard Parts
Cooling System — Tohatsu Water Pump Repair Kits
Gearcase Seals — Tohatsu Lower Unit Seal Kits
Fuel System — Fuel Filters
Ignition / Electrical — Electrical Items
Propellers & Guards — Propellers | Propeller Guards
Corrosion Protection — Anodes

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak tell‑tale stream or overheat alarm	Inspect intake screen for blockage, verify impeller condition, and confirm thermostat operation	Water pump kit, thermostat, intake screen
Hard starting or rough idle	Squeeze primer bulb, confirm choke/enrichment works, check spark plug condition and gap, look for stale fuel	Spark plugs, fuel filter, carburetor service parts
Poor acceleration or loss of power	Inspect propeller for damage/cavitation, test fuel pump output, clean/replace filters, verify compression	Propeller, fuel pump, fuel filter, spark plugs
Excessive smoke (2‑Stroke)	Confirm correct fuel/oil ratio, check for stuck choke, and verify oil‑injection settings (if equipped)	Spark plugs, carburetor gaskets/needle & seat, oil‑injection components
Gearcase noise or metal in gear oil	Drain and inspect gear oil, check for fishing line on prop shaft, evaluate seals and bearings	Lower unit seal kit, prop shaft seals, shims/bearings

FAQs

Are parts interchangeable between different years or platforms?

Many wear items (impellers, anodes, plugs) interchange across multiple years, but platform differences (carbureted vs. direct‑injection, cylinder count, and shaft length) affect compatibility. Always confirm with the exact model code, serial number, and suffix.

When should I replace the water pump impeller?

As a preventive measure every 2–3 seasons or ~200 hours, and immediately if cooling flow is weak, water intake screens were blocked, or the engine overheated.

How often should the lower unit gear oil be changed?

At least once per year or every 100 hours, whichever comes first. Inspect for milky oil or metal particles; contamination indicates the need for seal inspection and possible reseal.

What information do I need to confirm part compatibility?

Provide the full model code, serial number, shaft length (S/L/XL), control type (tiller/remote), starting system (manual/electric), and any known year or platform details.

Ready to find parts by horsepower, year, and model? Browse the main Tohatsu collection to filter and sort for your exact 2‑Stroke outboard.

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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.