21722513 Gear Set | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta DPS-B1 OX Helical-Spline Gear Set - Part Number: 21722513

A genuine matched helical propeller-spline gear set used in Volvo Penta DPS-B1 OX sterndrives with 2.32:1, 2.14:1 or 1.95:1 reduction. The gears must remain as a matched set and require correct bearing and shim setup.

⚙️ Key Features

• Precision-machined torque-transfer surfaces

• Factory gear, spline or flange geometry

• Designed for continuous propulsion or industrial load

• Requires correct bearing, fastener and shim setup

• Matched to the specific drive or engine configuration

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21722513 (current OEM reference)

OEM / Related Numbers:

• 3883621 - related / earlier gear-set reference

• 3888343-3888348 - bearing adjustment shims

• 3886895-3886905 - propeller-shaft adjustment shims

• 3883654 - propeller shaft

• 994697 / 184691 / 184765 - roller bearings

• 183272 - needle roller bearing

• 853807 / 853808 - sealing rings

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta oxidised-emissions DPS upper gear housings

Typically suits:

• Engine / drive models:

• DPS-B1 OX with 2.32:1 reduction

• DPS-B1 OX with 2.14:1 reduction

• DPS-B1 OX with 1.95:1 reduction

• HP Range: Engine-package dependent

• Engine Type: Volvo Penta Aquamatic Duoprop sterndrive

• Year Range: Approximately 2008 - current supported applications

• Fitment Note: Confirm drive ratio and serial number. Install as a matched set and complete the Volvo Penta backlash, preload and contact-pattern procedure.

🔌 Function

Transfers torque through the sterndrive at the specified ratio while maintaining the designed tooth-contact pattern and direction of rotation.

Common signs of failure:

• Abnormal whine, rumble or knocking

• Excessive backlash or shaft movement

• Pitting, scoring or fretting

• Metal debris in lubricant

• Vibration or premature bearing and seal wear

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging