21550240 Lower Gear | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta DPR-A Complete Lower Gear, 1.4 Ratio - Part Number: 21550240

A complete lower-gear assembly for Volvo Penta DPR-A propulsion drives using the catalogue-designated 1.4 reduction ratio.

⚙️ Key Features

• Complete lower-gear unit

• Catalogue ratio designation: 1.4

• Matched gears, shafts and bearings

• Counter-rotating propeller-drive construction

• Requires drive-specific setup and oil specification

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• Current OEM reference: 21550240

OEM / Related Numbers:

• 21550240

• Ratio identification: 1.4

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

• DPR-A marine propulsion drive

• Drive identification plate and serial number must match the 1.4-ratio assembly

🔌 Function

The lower gear changes the direction of drive and transfers power from the vertical shaft to the counter-rotating propeller shafts.

Common signs of failure or damage:

• Abnormal gear noise

• Metal debris in the lubricant

• Water-contaminated drive oil

• Propeller-shaft play

• Drive overheating

• Loss of propulsion

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging