6B4-45300-31-4D Lower Unit Assy Gear Box for 2-storke Yamaha Outboard Motor Parts 9.9HP 15HP E9.9DMH E15DMH, 6B4-45300-01-4D(S), 6B4-45300-11-4D(L)

• Customization: Available
• After-sales Service: Yes
• Warranty: 1 Year
• Model NO.: 6B4-45300-01/11/31-4D
• Standard: ISO
• Customized: Non-Customized
• Surface Treatment: Oil Blooming
• Material: Aluminum Alloy
• Type: Gearbox
• Engine: 2 Stroke
• Engine Capacity: 1-2L
• Cylinders: 2
• Engine Position: Outboard
• Fuel Type: Gasoline
• Engine Power: 9.9HP 15HP
• Applicable Brand: YAMAHA
• Unit Assy: Lower Casing & Drive 1
• Intake System: Reed Valve
• Fuel System: Carburetor
• Condition: New
• Transport Package: Box
• Trademark: YALUME MARINE
• Origin: China, Japan, Taiwan
• HS Code: 8409911100
• Production Capacity: 20000

Product Description

 

Detailed Photos

Installation Instructions

Product Description

6B4-45300-00-4D (S)
Lower Unit Assy, Yamaha,
For Outboard: Yamaha 9.9, Yamaha 15

6B4-45300-10/11-4D (L)
Lower Unit Assy, Yamaha,
For Outboard: Yamaha 9.9, Yamaha 15

6B4-45300-30/31-4D (X)
Lower Unit Assy, Yamaha,
For Outboard: Yamaha 15

Material:
Our Gearbox is made of aluminum alloy which offers a good balance of strength, weight, and corrosion resistance.

The gear box 6B4-45300 for Yamaha outboard motors is part of the lower unit assembly.
Its primary functions include:
 

1. Power Transmission: It transfers power from the engine to the propeller, allowing the boat to move.

2. Gear Reduction: The gearbox reduces the engine's RPM to a more manageable speed for the propeller, optimizing performance and efficiency.

3. Directional Control: It allows for steering and maneuverability by changing the angle of the propeller in relation to the hull.

4. Support: It houses bearings and supports the propeller shaft, ensuring stability during operation.

What's the differences between long and short gearbox?
 

The long and short gear boxes for Yamaha outboards accommodate different transom heights.

A long shaft is used for deeper transoms, while a short shaft suits shallower ones.

This ensures optimal performance and efficiency in various boat designs and water conditions.

More Products We Have:
 

BEARING	HOUSING,WATER PUMP
BOLT / SCREW	IMPELLER
BUSHING / COLLAR	VALVE / JET,MAIN
BRACKET	KEY,WOODRUFF
CABLE, REMOTE/STEERING /	MOUNT DAMPER
THROTTLE/STEERING SYSTEM	NUT
CAP LOWER CASING	OIL SEAL
CARBURETOR ASSY / REPAIR KIT	O-RING
CDI / CABLE,BATTERY / RELAY ASSY	OUTER PLATE
COIL / PLUG,SPARK	PIN,CROSS/DRIVE/
CARTRIDGE INSERT	STRAIGHT/COTTER
CLIP	PISTON
CLUTCH DOG / BALL	PISTON PIN
CONNECTING ROD	PISTON RING
CRANK PIN	PROPELLER
CRANKSHAFT	PROPELLER SHAFT
DIAPHRAGM	WATER PUMP REPAIR KIT
DAMPER, WATER SEAL	REMOTE CONTROL ASSY
DRIVE SHAFT	SEAL,LABYRINTH
FILTER	SLEEVE LINER
FUEL PUMP	SPACER
FUEL PARTS	SPRING
FLOAT	STARTER
GASKET	SWITCH ASSY
GASKET KIT	THERMOSTAT
GEAR / PINION ASSY	WASHER/SHIM
TAB-TRIM	ANODEIN
NEW GEAR

 

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