Tohatsu 2-Stroke Outboard Marine Engine Parts

(73 products)

This page is dedicated to Tohatsu 2‑Stroke outboard engines. Use it to find compatible parts, routine service information, maintenance tips, commonly replaced items, 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

Locate the nameplate/serial tag on the transom bracket or swivel bracket; it lists model code and serial number.
Model codes often include suffixes that indicate shaft length, starting/charging system, and control type. Match the full code and suffix to ensure parts compatibility.
Note whether your engine uses premix fuel or an oil‑injection system, as fuel/oil system parts will differ.
Portable models (small single/twin) differ from mid‑range inline multi‑cylinder platforms; cooling, ignition, and gearcase parts may not interchange.

Platform Overview

Portable 2‑Stroke (typical 2–20 hp class)

Feature	Description
Configuration	Lightweight carbureted 2‑Stroke, typically single or twin‑cylinder with manual start options.
Common Models	Portable 2–20 hp 2‑Stroke models (tiller or remote variants depending on suffix).
Advantages	Simple maintenance, easy transport, strong low‑speed response for small boats and dinghies.
Notes	Verify shaft length and starting/charging options; impellers, plugs, and anodes are common service items.

Mid‑Range 2‑Stroke (typical 25–90 hp class)

Feature	Description
Configuration	Carbureted inline multi‑cylinder 2‑Stroke with manual or electric start and remote control options.
Common Models	General 25–90 hp 2‑Stroke models used on aluminum fishing boats, skiffs, and inflatables.
Advantages	Good power‑to‑weight, responsive throttle, straightforward service procedures.
Notes	Cooling and gearcase components are model‑specific; confirm model code and serial to select correct kits.

Routine Maintenance & Service Parts

Intervals below are general guidelines; always follow the procedures and intervals in your official service manual for your exact model and operating conditions.

Item	Interval*	Remarks	Parts Link
Gear oil (lower unit)	Every 100 hours or annually	Inspect for metal or water; replace drain/fill gaskets as needed.	Tohatsu Lower Unit Seal Kits
Spark plugs	Inspect every 50 hours; replace ~100 hours or as needed	Check gap and heat range per manual; fouling indicates rich mix or oiling issues.	Spark Plugs
Fuel filter / in‑line filter	Every 100 hours or annually	Replace more often with ethanol fuel or contaminated tanks.	Fuel Filters
Water pump impeller / kit	Every 2 seasons or 200 hours (sooner for sandy/silty use)	Weak tell‑tale stream or overheat alarm suggests service is due.	Tohatsu Water Pump Repair Kits
Anodes (internal & external)	Inspect every 50 hours; replace at ~50% consumed	Use correct alloy for your water (salt, brackish, fresh).	Anodes
Thermostat	Inspect annually; replace ~2 years or as needed	Stuck thermostat can cause cold‑running or overheat issues.	Tohatsu Outboard Parts
2‑Stroke oiling (premix or oil injection)	Check each service interval	Verify oil type and ratio per manual; inspect hoses, pump, and tank for leaks or air.	Tohatsu Outboard Parts

Frequently Used Parts Categories

Cooling System – Tohatsu Water Pump Repair Kits
Lower Unit Service – Tohatsu Lower Unit Seal Kits
Ignition & Tune‑Up – Spark Plugs
Fuel System – Fuel Filters
Corrosion Protection – Anodes
Propulsion – Propellers
Electrical & Charging – Electrical Items

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak tell‑tale stream or overheat alarm	Inspect intake screens for blockage; verify impeller condition and thermostat operation.	Water pump kit, thermostat, intake screen, anodes.
Hard starting / rough idle	Confirm fresh fuel; check choke/enrichment; inspect spark plugs and idle mixture settings.	Spark plugs, fuel filter, carburetor components, hoses.
Poor acceleration / power loss	Check propeller for damage; test fuel flow and venting; inspect plugs and compression.	Propeller, fuel filter, spark plugs, ignition components.
Excessive smoke (2‑Stroke)	Verify fuel/oil ratio or oil‑injection function; ensure choke releases; check for flooded carb.	Spark plugs, fuel system parts, oiling system hoses and pump components.
Gearcase noise / metal in gear oil	Inspect oil level/condition; check for water intrusion; test prop shaft and bearings.	Lower unit seal kit, bearings, shims, gear set (model‑specific).

FAQs

Are parts interchangeable between different years or platforms?

Some hardware and service items may be shared, but many cooling, ignition, and gearcase parts are model‑specific. Always use the full model code and serial number to verify compatibility.

When should the impeller be replaced?

As a rule of thumb, replace the impeller every 2 seasons or ~200 hours, and sooner if you see a weak tell‑tale stream, overheat alarms, or if the engine was run dry or in sandy/silty water.

How often should gear oil be changed?

Change lower unit gear oil at least every 100 hours or annually. Inspect for water (milky oil) or metal. If contamination is found, service seals before returning to use.

What information do you need to confirm part compatibility?

Please provide the model code, serial number, shaft length, starting/charging type, and control type (tiller vs remote). Photos of the nameplate and the part needing replacement are helpful.

Ready to find parts by horsepower, year, and model? Browse the full Tohatsu catalog and use the Filter & Sort controls to narrow your results.

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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.