UanofCn 4-Stroke 115HP Outboard Marine Engine Parts

(1 products)

This page is for UanofCn 4-Stroke 115HP outboard engines. It helps you find compatible parts and key service information, with maintenance tips, commonly replaced items, and troubleshooting guidance. You can also browse our main UanofCn collection. Scroll to the bottom of this page to start browsing parts for this engine, and remember that on the collection page you can use the Filter & Sort controls to narrow results by horsepower, year range, and part category/section.

Browse All UanofCn Parts

How to Identify Your 115HP Model

Locate the serial/nameplate on the transom bracket or swivel bracket. It typically lists model code, serial number, and shaft length.
Read the model suffix: common codes indicate shaft length (S/L/XL), starting/charging options, and remote vs. tiller controls.
For 4-stroke models, look for EFI/ECM labels and an engine oil filter on the powerhead side. Cowling decals often indicate displacement and induction type.
Use the exact serial number to match gaskets, cooling parts, and electrical items—small year-to-year changes can affect part compatibility.

Engine Overview

Inline-4 EFI 4-Stroke (Typical for 115HP Class)

Feature	Description
Configuration	Inline-4, EFI 4-stroke outboard; electronic ignition; remote or tiller variants.
Common Models	115HP EFI 4-stroke inline-4 models (various shaft lengths and control options).
Advantages	Quiet operation, good fuel economy, strong mid‑range torque, broad prop compatibility.
Notes	Match parts by serial number for water pump, thermostat, and ignition components; prop spline count and gearcase details can vary by generation.

Routine Maintenance & Service Parts

Intervals below are general guidelines for typical recreational use. Always follow your official service manual for model‑specific procedures and intervals.

Item	Interval*	Remarks	Parts Link
Engine oil + filter	100 hrs or annually	Warm engine; replace crush washer if applicable; verify level after run‑up.	Oil Filters
Gear oil (lower unit)	100 hrs or annually	Inspect for water intrusion/metal; replace seals if contamination is found.	Lower Unit Seal Kits
Spark plugs	100 hrs or annually	Inspect gap and color; replace if fouled, worn, or at interval.	Spark Plugs
Fuel filter / water separator	100 hrs or annually	Drain/replace; check for water/debris; use fresh fuel.	Fuel Filters
Water pump impeller / kit	2–3 seasons or 200 hrs	Replace sooner if weak tell‑tale or overheat occurs; inspect housing and key.	Water Pump Impeller Rebuild Kits
Anodes (sacrificial)	Inspect 50 hrs; replace at ~50% wear	Choose alloy for your water (zinc/brackish, aluminum/fresh, magnesium/fresh only).	Anodes

Frequently Used Parts Categories

Routine Service – Service & Maintenance Kits
Cooling System – Water Pumps
Fuel System – Fuel Filters
Ignition / Electrical – Electrical Items
Corrosion Protection – Anodes
Propulsion – Propellers
Seals & Gaskets – Gaskets

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak tell‑tale or overheat alarm	Inspect intake screens for blockage; verify hose pressure; check impeller condition.	Water pump kit, impeller, thermostat, intake screen
Poor acceleration / power loss	Check fuel quality; replace/inspect fuel filter; examine prop for damage/cavitation; verify spark plugs.	Fuel filter, spark plugs, propeller, intake gaskets
Hard starting / rough idle	Confirm battery charge and connections; inspect plugs; check for air leaks on fuel lines.	Spark plugs, fuel filter, fuel hoses, injector cleaning
Gearcase noise or metal in gear oil	Drain and inspect gear lube; pressure test for seal leaks; listen for bearing whine.	Lower unit seal kit, bearings, prop shaft seals

FAQs

Are parts interchangeable between different years or platforms?

Some service parts carry over, but many cooling, ignition, and fuel components change with updates. Always match by serial/model code and confirm shaft length and control type.

When should I replace the impeller?

As a preventative measure, replace the impeller every 2–3 seasons (or ~200 hours). In sandy or silty water, or if water flow weakens, service it sooner with a complete kit.

How often should gear oil be changed?

Change lower unit gear oil every 100 hours or annually. If you see milky oil or metal flakes, investigate immediately and pressure test for seal leaks.

What information helps confirm part compatibility?

Provide the model/serial number from the nameplate, shaft length, control type (tiller/remote), country of origin, and any existing part markings. Photos of the part and nameplate are very helpful.

Ready to find parts? Browse our main UanofCn collections by horsepower, year, and model to get what you need for your 115HP 4‑stroke.

Browse All UanofCn Parts

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