21697493 Lower Gear | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta lower gear spare part for IPS15, gear ratio 1,84. The lower gear is offered as a remanufactured exchange component and also as a genuine Volvo Penta spare part. It includes the intermediate housing, but the upper tension ring and rubber rings are not included.

🚤 Compatibility

Typically suits:

• Volvo Penta IPS15-C
• Volvo Penta D8A2-A MP
• Volvo Penta D8A4-A MP
• Volvo Penta IPS15-B
• Volvo Penta IPS15-A
• Volvo Penta D8A8-A MP

• Engine Family: IPS, D

⚙️ Key Features

• Genuine Volvo Penta IPS lower gear
• Drive model: IPS15-B
• Reduction ratio: 1.84:1
• Volvo Penta remanufactured alternative available
• Complete serial-specific lower-unit assembly
• Ratio 1.84:1. (Volvo assembly listing)
• Lower gear for IPS15
• Gear ratio 1,84
• Genuine Volvo Penta spare part; a remanufactured exchange alternative is also listed
• Gear ratio: 1,84
• Ips model: IPS15
• Supply: Genuine spare part

🔌 Function

Transfers power from the upper drive through the reduction gears to the contra-rotating propeller shafts.

⚠️ Common Signs of Failure

• Metal in the gear oil
• Water contamination
• Oil leakage at shaft seals
• Excessive backlash or vibration
• Loss of propulsion

🛠️ Service Notes

• Lower gears are supplied and worked on as a matched set — do not mix a new gear with used mating gears, and keep matched bearing pairs together
• Shim values must be re-established whenever gears, bearings or housings are changed; set tooth backlash and check the tooth contact pattern against the specification for your drive rather than reusing the old shim stack blind
• This work needs the correct Volvo Penta special tools and measuring gear; without them the gear set cannot be set up correctly and will not last
• Work clean, inspect the housing bores and bearing seats, and renew the seals and O-rings that are disturbed
• Fill with the specified lubricant to the correct level, then run the drive gently under light load before working it hard, and check the lubricant for metal afterwards
• The remanufactured exchange alternative for IPS15 at ratio 1,84 is 3801678
• The core criteria have to be met to gain the full advantage of a remanufactured IPS exchange unit - they are set out in the Core Management System (CMS), or ask your Volvo Penta support representative

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3801678 (Volvo Penta remanufactured exchange lower gear)

Other-Brand OEM Numbers

• VOE21697493

OEM Reman Alternatives

• Volvo Penta Reman: 3801678

Aftermarket / Verified Equivalents

• Housing: 21806821
• Seal: 21912312
• Shaft: 21816449

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging