Restore maximum dual-propeller propulsion and efficiency with this premium aftermarket lower unit engineered for high-performance sterndrive systems. This lower housing features an updated modern case design integrated with a front-facing oil recirculation system to optimize thermal cooling and continuous lubrication under heavy loads. Built for exceptional durability in demanding marine environments, it ensures smooth power delivery and structural integrity for engines rated up to 425HP.

Ideal Applications

  • Dual-Propeller Sterndrive Maintenance

  • Cruiser and Performance Boat Repair

  • High-Torque Propulsion Restoration

  • Brand: Premium Aftermarket Replacement
  • Part Number: 90-128-02BA
  • OEM / Cross-Reference: 1656-8866A36
  • Engine Compatibility: Bravo Three (1.65 Ratio)
  • Year Range: 1992 - Current
  • Physical Specifications: 18/25 Tooth Count, front oil recirculation passage
  • Maximum Horsepower: 425 HP
  • Drive Type: Stern Drive Lower Unit
  • Fits Bravo 3 1.65 gear ratio applications
  • Compatible with 1992 and newer production models equipped with matching architecture
  • Designed for standard high-performance dual-prop configurations
  • Verify Gear Ratio: Ensure your application specifically requires the 18/25 tooth count configuration before ordering.
  • Oil Passage Match: Your existing upper drive MUST feature a matching oil passage to align with this modern front-recirculation style case.
  • Exclusions: This unit is NOT a replacement for heavy-duty X, XR, or XZ model drives.
  • Installation Notice: Installation kit and anode kit are not included and must be sourced separately.

Mariners Warehouse vs Others

Built to match OEM standards while delivering reliable performance and peace of mind.

Features

Mariners Warehouse

Others

Performance ✔️
Warranty Support Reliable warranty Limited or unclear warranty terms
Customer Trust Trusted by thousands of marine customers Unverified buyer trust
Pre-tested before shipping for reliability ✔️
OEM performance standards ✔️
Simple return process ✔️

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