Suzuki 28HP 2-Stroke Outboard Engine Parts

(3 products)

This page is for Suzuki 2‑Stroke 28HP outboard engines. Use it to find compatible parts and service information, including routine maintenance tips, common replacement items, and troubleshooting guidance. You can also browse the main Suzuki collection. Scroll to the bottom of this page to start browsing parts for this engine, and 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 28HP Model

Find the identification plate on the transom or swivel bracket. It lists the model code and serial number required for exact parts matching.
Reading Suzuki 2‑stroke codes: the “DT” prefix denotes 2‑stroke models; suffix letters/numbers indicate shaft length (S/L/XL), control type (tiller/remote), and production revision/year.
Platform clues: many 28HP 2‑stroke units share components with period DT25/DT30 models. Confirm cooling‑system and gearcase parts by model/serial.
Oil system: some engines were premix, others oil‑injected. Look for an oil tank and pump. This affects service parts and maintenance steps.

Engine Overview

28HP 2‑Stroke class (Suzuki DT family)

Feature	Description
Configuration	Inline‑2, carbureted 2‑stroke with CDI ignition; lightweight gearcase optimized for small craft.
Common Models	28HP 2‑stroke variants within the DT family; many service items are similar to contemporary DT25/DT30 models.
Advantages	Low weight, simple carburetion, easy dockside service, strong mid‑range torque for small boats.
Notes	Cooling‑system and lower‑unit parts often cross‑reference with other DT models of the same era; verify by model/serial. Impeller sizing on some DT 9.9/25/28 families can be shared—confirm dimensions before ordering.

Routine Maintenance & Service Parts

Intervals below are general guidelines. Always follow the official service manual for your exact model and usage conditions.

Item	Interval*	Remarks	Parts Link
Gear oil (lower unit)	Every 100 hrs or annually	Inspect for water intrusion (milky oil). Replace seals if contaminated.	Suzuki Lower Unit Seal Kits
Spark plugs	Inspect 50 hrs; replace ~100 hrs	Check gap and color; replace if fouled or worn.	Suzuki Spark plug
Fuel filter / water separator	Inspect 50 hrs; replace annually	Keep a spare onboard; ethanol fuels accelerate clogging.	Suzuki Fuel filters
Water pump impeller / kit	200 hrs or every 2–3 seasons	Shorten interval in sandy/silty water or weak telltale flow.	Suzuki Water Pump Repair Kits
Anodes (zincs)	Inspect 50 hrs; replace when 50% depleted	Match material (aluminum/zinc/magnesium) to your water type.	Suzuki Anodes
2‑stroke oiling (premix or injection)	Every outing (premix); inspect lines annually (injection)	Use TC‑W3 oil. Premix engines typically run 50:1; oil‑injected units: inspect pump & hoses, bleed air after service.	Suzuki Hoses

Frequently Used Parts Categories

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

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak telltale or overheat alarm	Inspect intake screens for debris, verify impeller condition, confirm thermostat operation.	Water pump kit, intake screen, thermostat, gaskets
Poor acceleration / power loss	Check prop for damage/cavitation, replace clogged fuel filter, confirm spark plug condition and carb adjustments.	Propeller, fuel filter, spark plugs, fuel hoses
Hard starting / rough idle	Drain old fuel, verify choke/enrichment operation, inspect plugs and fuel lines for air leaks.	Spark plugs, fuel filter, hoses, primer bulb
Excessive smoke (2‑stroke)	Confirm correct premix ratio (typically 50:1), check oil injection pump setting (if equipped), and plug heat range.	Spark plugs, oil lines/hoses, intake reeds (inspection)
Gearcase noise / metal in gear oil	Check oil level and color, pressure‑test gearcase for seal leaks, inspect prop shaft for fishing line damage.	Lower unit seal kit, bearings, gear oil

FAQs

Are parts interchangeable between different years or DT platforms?

Some service parts (impellers, seals, anodes, plugs) may be shared across DT models of the same era, but changes by year/shaft length/control type are common. Always confirm with the exact model code and serial number.

When should I replace the water pump impeller?

As a preventative service, replace every 2–3 seasons or ~200 hours—sooner if you operate in sandy/silty water or the telltale stream weakens. Consider a full pump kit if the housing or wear plate shows scoring.

How often should I change lower unit gear oil?

At least annually or every 100 hours. If the oil appears milky (water intrusion) or burnt/metallic, service immediately and pressure‑test the gearcase for leaking seals.

What information do you need to confirm compatibility?

Please provide the model code, serial number, shaft length (S/L/XL), control type (tiller/remote), and a photo of the nameplate. Photos of the existing part also help verify dimensions and revisions.

Ready to find parts? Browse the main Suzuki collection and filter by horsepower, year, and model to zero in on components for your engine.

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