551100-87D21-OED 551100-88D01-OED Suzuki 25" Extra Long Gearbox | Genuine Used Part

🔧 Product Description

Suzuki 25-Inch Extra-Long Gearcase - Listing Numbers: 55100-87D21-0ED / 55100-88D01-0ED

The supplied source text contained malformed numbers 551100-87D21-OED and 551100-88D01-OED. Suzuki marine numbering conventions indicate the likely corrected forms shown above, with 0ED as the colour suffix. However, a reliable OEM catalogue link between these two numbers, a complete supersession chain and an exact engine application could not be validated.

⚙️ Key Features

• Genuine used Suzuki gearcase as supplied
• Likely corrected number format 55100 rather than 551100
• Likely colour suffix 0ED rather than letter OED
• Described as 25-inch extra-long shaft
• Exact internal gearcase family remains unverified

🚤 Compatibility

• FAILED VALIDATION - INCOMPLETE DATA
• The supplied listing describes a 25-inch extra-long Suzuki gearcase
• Exact horsepower, model years, standard or counter rotation and serial range remain unverified
• Do not list this unit as DF90-DF140 or DT150-DT200 without confirming the donor-engine identification

🔌 Function

The gearcase transfers engine power to the propeller and houses the gears, shafts, shift mechanism and cooling-water pump, but exact configuration must be established before sale.

⚠️ Common Signs of Failure

• Incorrect model identification
• Wrong gear ratio or propeller rotation
• Driveshaft spline mismatch
• Shift-rod length mismatch
• Gear oil contamination
• Housing or internal impact damage

🔄 Supersession & Cross Reference

OEM Supersession Chain

• FAILED VALIDATION - INCOMPLETE DATA
• No defensible OEM supersession between 55100-87D21-0ED and 55100-88D01-0ED was located
• The item must be identified from casting marks, driveshaft spline count, gear ratio and donor-engine serial number

OEM / Related Numbers

• Supplied marking 551100-87D21-OED
• Likely formatted marking 55100-87D21-0ED
• Supplied marking 551100-88D01-OED
• Likely formatted marking 55100-88D01-0ED
• Related 87D-series Suzuki gearcase service components

Aftermarket / Verified Equivalents

• No verified direct aftermarket equivalent
• No cross-brand OEM equivalent can be assigned safely
• A matching used Suzuki unit must be selected by physical dimensions, ratio, rotation and spline count

📦 Condition

• Genuine used part
• Exact model identification requires casting and internal inspection
• In good working condition unless otherwise stated