5441700TP Mercruiser Bravo 3 Drive - 2.43:1 | Genuine Used Part

🔧 Product Description

Genuine MerCruiser Bravo Three Complete Sterndrive - Part Number: 5441700TP

A genuine MerCruiser Bravo Three complete sterndrive with a deep 2.43:1 overall reduction ratio.

The 2.43 ratio is used where additional propeller reduction is required for heavier boats, lower-powered engine packages or applications requiring strong acceleration and low-speed thrust.

⚙️ Key Features

• Genuine MerCruiser Bravo Three complete drive
• Correct part number 5441700TP
• Deep 2.43:1 overall reduction ratio
• Counter-rotating twin-propeller system
• Dual water pickups and cone-clutch shifting

🚤 Compatibility

Commonly used on

• MerCruiser Bravo Three deep-ratio sterndrive installations
• Heavy recreational boats requiring a 2.43 reduction

Typically suits

• Engine models:
• MerCruiser 4.3L V6 packages specified with Bravo Three 2.43
• MerCruiser 4.5L V6 packages specified with Bravo Three 2.43
• MerCruiser 5.0L V8 packages specified with Bravo Three 2.43
• MerCruiser 5.7L V8 packages specified with Bravo Three 2.43
• Selected diesel packages factory-matched to a Bravo Three 2.43 drive
• Bravo Three serial 0W250000 and above
• HP Range: Approximately 180HP - 425HP, dependent on vessel and engine package
• Engine Type: MerCruiser petrol or diesel sterndrive engine
• Drive Type: Bravo Three twin-propeller sterndrive
• Gear Ratio: 2.43:1
• Year Range: Approximately 2006 onward for the TP configuration

🔌 Function

The deep-ratio upper and lower gearing reduces propeller speed while multiplying torque. The counter-rotating propellers provide strong thrust and control for heavy hulls and loaded vessels.

⚠️ Common Signs of Failure

• Propeller-shaft seals leak gear lubricant
• Water enters the drive through damaged seals or bellows
• Gear or bearing noise increases under load
• Forward or reverse engagement slips or becomes delayed
• Excessive propeller-shaft movement or damaged splines

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 5441700TP current Bravo Three 2.43 drive for serial 0W250000 and above
• 5441700LP related earlier 2.43 drive configuration

OEM / Related Numbers

• 5-5441700TP
• 5441700TP
• 5-5441700LP
• 5441700LP
• 1656-8M0046682 related Bravo Three 2.43 lower gear housing
• 865440H52 related 2.20 / 2.43 upper driveshaft housing

Aftermarket / Verified Equivalents

• SEI Marine: SE128 complete Bravo Three replacement, 2.43 ratio
• Specialist remanufactured Bravo Three 2.43 drive
• No direct SE128 compatibility with Bravo X, XR or XZ drive variants

📦 Condition

• Genuine used part
• Removed from running drive where applicable
• In good working condition unless otherwise stated