57100-94520-000 55100-94530-OED Suzuki 20" Long Gearbox | Genuine Used Part

🔧 Product Description

Genuine Suzuki DT115 / DT140 20-Inch Standard-Rotation Gearcase and Driveshaft Assembly - Part Numbers: 57100-94520-000 / 55100-94530-0ED

A genuine Suzuki 20-inch lower-unit assembly for selected DT115 and DT140 V4 two-stroke outboards. Number 57100-94520-000 identifies the related driveshaft assembly, while 55100-94530-0ED identifies the gearcase housing. Together they describe the principal housing and shaft components of the used gearbox rather than a single supersession chain.

⚙️ Key Features

• Genuine Suzuki DT115 / DT140 lower-unit components
• 20-inch long-shaft configuration
• Standard propeller rotation
• Driveshaft assembly 57100-94520-000
• Gearcase housing 55100-94530-0ED

🚤 Compatibility

• Suzuki DT115 V4 two-stroke
• Suzuki DT140 V4 two-stroke
• 20-inch standard-rotation applications
• Approximate application era: mid-1980s through the later DT115 / DT140 production period
• Exact fitment is controlled by serial number and 945-series gearcase revision

🔌 Function

The driveshaft transfers engine torque into the gearcase, while the housing supports the reduction gears, shift mechanism, propeller shaft and cooling-water pump.

⚠️ Common Signs of Failure

• Driveshaft is bent or splines are worn
• Housing revision does not match internals
• Gear oil contains water
• Clutch dog or gears are worn
• Propeller shaft is bent
• Skeg or cavitation plate is damaged

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 57100-94520-000 and 55100-94530-0ED are companion driveshaft and housing numbers
• They are not a supersession pair
• Earlier 94504 / 94507 / 94510 housings represent earlier V4 production generations

OEM / Related Numbers

• 57100-94520-000 driveshaft assembly
• 55100-94530-0ED gearcase housing
• 55100-94504-02M early housing
• 55100-94507-02M revised housing
• Related 945-series forward and reverse gears, clutch dog and bearing carrier

Aftermarket / Verified Equivalents

• Specialist remanufactured DT115 / DT140 lower units
• Used genuine Suzuki 945-series complete assemblies
• Aftermarket seal, bearing, clutch and water-pump service kits
• No verified direct aftermarket bare housing

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated