Tohatsu 2-Stroke 110HP Outboard Marine Engine Parts

(2 products)

This page is for Tohatsu 2‑Stroke 110 HP outboard engines. Use it to find compatible parts and service information, including maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse our main Tohatsu 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 110 HP Model

Locate the identification plate: typically on the transom clamp bracket or swivel bracket. It lists model code, serial number, and sometimes shaft length.
Read the model code and suffix: letters often indicate starting/charging features, control type (tiller vs. remote), and shaft length (S/L/XL). The final characters may imply production year/series.
2‑Stroke specifics: confirm whether your engine uses premix or has oil‑injection. This affects service items like oil filters, hoses, and priming procedures.
Platform cues: conventional carbureted models lack a high‑pressure DI system, while later direct‑injection (TLDI) models have additional air/fuel plumbing and filters.

Engine Platform Overview

Conventional Carbureted 2‑Stroke (110 HP class)

Feature	Description
Configuration	Loop‑charged 2‑stroke, carbureted induction; remote oil‑injection or premix depending on model.
Common Models	110 HP 2‑stroke variants within the 90/110/115 family; model codes vary by shaft length and controls.
Advantages	Light weight, strong holeshot and mid‑range power, straightforward maintenance.
Notes	Many wear parts overlap with adjacent horsepower in the same family; always confirm by model and serial before ordering.

TLDI Direct‑Injection 2‑Stroke (110–115 HP class)

Feature	Description
Configuration	Air‑assisted direct‑injection 2‑stroke (TLDI) with dedicated high‑pressure fuel and air components.
Common Models	110/115 HP class DI models (naming varies by market); check code for shaft length and control type.
Advantages	Improved fuel economy and emissions versus carb models; strong torque and easy starting.
Notes	DI fuel/air filters and pumps are platform‑specific and not interchangeable with carbureted versions.

Routine Maintenance & Service Parts

Intervals below are general guidelines for typical recreational use. Always follow the 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 water intrusion/metal; replace gaskets and seals if needed.	Tohatsu Lower Unit Seal Kits
Spark plugs	Inspect 50 hours; replace ~100 hours	Use correct heat range/gap; fouling reduces acceleration and economy.	Spark Plug
Fuel filter / water separator	Inspect 50 hours; replace each season	Critical for both carb and DI systems; helps prevent lean conditions.	Fuel Filters
Water pump impeller / kit	Every 200 hours or 2–3 seasons	Replace sooner if stream is weak or after sand/silt exposure.	Tohatsu Water Pump Repair Kits
Anodes (internal/external)	Inspect 50 hours; replace when 50% depleted	Choose material for your water type (zinc/brackish, aluminum/brackish, magnesium/fresh).	Anodes
2‑Stroke oil injection system	Annually	Inspect remote tank screen, hoses, and pump prime; verify warning system.	Hoses
Thermostat	Every 2–3 seasons	Stuck stats cause over‑cooling (rich running) or overheating.	Tohatsu Outboard Parts
Propeller & hub inspection	Each season or after impact	Check for bent blades and fishing line at seals; verify pitch selection.	Propellers

Frequently Used Parts Categories

Routine Service: Service & Maintenance Kits
Cooling System: Tohatsu Water Pump Repair Kits
Fuel System: Fuel Filters
Ignition / Electrical: Electrical Items
Gearcase / Seals: Tohatsu Lower Unit Seal Kits
Propulsion: Propellers
Corrosion Protection: Anodes

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak tell‑tale stream or overheat alarm	Inspect intake screen for debris, tell‑tale hose for kinks, thermostat operation, and impeller wear.	Water pump kit, thermostat, intake screen
Poor acceleration or power loss	Check for prop damage or over‑pitch, fouled plugs, fuel restriction, or old fuel.	Propeller, spark plugs, fuel filter
Hard starting or rough idle	Prime fuel bulb, verify choke/enrichment, check for air leaks and carb contamination.	Fuel filter, hoses, gaskets, spark plugs
Excessive smoke (2‑stroke)	Verify oiling ratio (premix) or oil‑injection setting, ensure choke isn’t stuck, confirm thermostat closes when cold.	Oil system hoses, choke/enricher components, thermostat
Gearcase noise or metal in gear oil	Drain and inspect gear lube; check for fishing line at prop shaft damaging seals.	Lower unit seal kit, prop shaft seals, bearings

FAQs

Are parts interchangeable between different years or platforms?

Many wear items interchange within the same 90/110/115 HP family, but carbureted and TLDI direct‑injection models often use different fuel, electrical, and cooling components. Confirm compatibility by model code and serial.

When should the impeller be replaced?

As a rule of thumb, every 200 hours or 2–3 seasons, sooner if you operate in sandy or silty water or notice a weak tell‑tale stream.

How often should I change gear oil?

At least once per year or every 100 hours. If the drained oil looks milky or metallic, service seals and inspect internal components before further use.

What information helps confirm part compatibility?

Provide the model code, serial number, shaft length (S/L/XL), control type (tiller or remote), and whether the engine is carbureted or TLDI direct‑injection.

Ready to find parts by horsepower, year, and model? Browse the main Tohatsu collection to locate components tailored to your 110 HP 2‑stroke.

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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.