Stern Drive Upper Unit 90-121-01C with 29/27 Tooth Gear Ratio and Oil Recirculation Case - Mariners Warehouse
Stern Drive Upper Unit 90-121-01C with 29/27 Tooth Gear Ratio and Oil Recirculation Case - Mariners Warehouse

Stern Drive Upper Unit | 90-121-01C | 29/27 Tooth Gear Ratio

$2,795.00
$3,102.45
$2,795.00
(-10%)
SKU: SE90-121-01C
Key Features :
  • Precision-Engineered Tooth Gear Configuration
  • Integrated Oil Recirculation Case Design
  • High-Torque Performance Reliability
Please hurry! Only 100 left in stock
Subtotal: $2,795.00
Stern Drive Upper Unit 90-121-01C with 29/27 Tooth Gear Ratio and Oil Recirculation Case - Mariners Warehouse

Stern Drive Upper Unit | 90-121-01C | 29/27 Tooth Gear Ratio

$3,102.45 $2,795.00
Stern Drive Upper Unit 90-121-01C with 29/27 Tooth Gear Ratio and Oil Recirculation Case - Mariners Warehouse

Stern Drive Upper Unit | 90-121-01C | 29/27 Tooth Gear Ratio

$3,102.45 $2,795.00

    Restore dependable stern drive power with this premium aftermarket upper drive housing engineered for high-performance sterndrive systems. This upper unit features a modern case design equipped with an integrated front-facing oil recirculation system to optimize thermal management and lubrication. Manufactured for durability in demanding marine environments, it delivers smooth power transfer and structural integrity for engines rated up to 425HP.

    Ideal Applications

    • High-Horsepower Stern Drive Maintenance

    • Runabout and Cruiser Propulsion Repair

    • Performance Sterndrive Restoration

    • Brand: Premium Aftermarket Replacement
    • Part Number: 90-121-01C
    • OEM / Cross-Reference: 1589-8868H87
    • Engine Compatibility: Bravo 1 (1.36 Ratio), Bravo 2 (1.5 & 1.81 Ratios), Bravo 3 (1.36 & 1.81 Ratios)
    • Serial Range: 0F730000 and above
    • Tooth Count: 29/27
    • Maximum Horsepower: 425 HP
    • Case Style: New style with front oil recirculation passage
    • Fits specific 1.36 gear ratio configurations
    • Fits specific 1.50 and 1.81 gear ratio configurations
    • Compatible with sterndrive serial numbers 0F730000 and above
    • Verify Gear Ratio: Ensure your application matches the 29/27 tooth count configuration before ordering.
    • Oil Passage Match: Your existing lower unit MUST feature a matching oil passage to align with this modern front-recirculation style case.
    • Exclusions: This unit is NOT a replacement for high-performance 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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