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Yamaha Replacement Lower Unit | 30" | 4 Stroke | 90-429-B30F
SEI Marine
MPN : 90-429-B30F
Overview & Technical Specs
| Product Overview | |
|---|---|
| Fits | Yamaha |
| Unit Type | Lower Unit |
| Warranty | 3 Year Fault Free Warranty |
| Weight | 75.0 lb |
| Item Condition | New |
| Technical Specifications | |
| Combustion | 4 Stroke |
| Gear Ratio | 2:00 |
| Rotation | Counter |
| Shaft Length | 30" |
Increments of 1
Minimum of 1
Maximum of
10Low stock
10In stock, ready to ship
Sale price
$1,645.00 USD
-100%
Regular price
Regular price
$1,645.00 USD
Unit price
per
Yamaha Replacement Lower Unit | 30" | 4 Stroke | 90-429-B30F
Sale price
$1,645.00 USD
Regular price
Regular price
$1,645.00 USD
Unit price
per
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Description
Replacement Yamaha® Outboard Lower Unit — SE429 Series (4-Stroke)
Aftermarket replacement, built to fit. The SE429 series is a complete, ready-to-install lower unit for Yamaha 4-Stroke applications covered by this family. Engineered for smooth shifting, dependable operation, and long service life, each unit arrives fully assembled to make repair or replacement straightforward.
Product Summary
- Direct replacement fit for Yamaha 4-Stroke models supported by the SE429 series
- Pre-assembled gearcase — water pump and all internal components installed
- Precision-machined internals — gears, shafts, and bearings for smooth, reliable performance
- Cost-effective — dependable aftermarket solution at a fraction of factory pricing
- Ready to install — saves time and simplifies the swap
- Durable black finish — can be refinished to match your engine
Fitment Tip: Coverage varies within the SE429 family. Verify your exact engine model, model year, shaft length, gear ratio, and rotation before purchase.
Application
Compatible with Yamaha 4-Stroke outboard models supported by the SE429 series. For help confirming the correct unit, contact us.
Yamaha® is a registered trademark of Yamaha Motor Co., Ltd. This is an aftermarket replacement part and is not manufactured by or affiliated with Yamaha. Names are used for fitment reference only.