8M0123408 MerCruiser Bravo Three 15 1/2 x 24 LH Four-Blade Stainless Steel Front Propeller | Genuine Used Part

🔧 Product Description

Genuine MerCruiser Bravo Three 15 1/2 x 24 Left-Hand Four-Blade Stainless Steel Front Propeller - Part Number: 8M0123408

A genuine used Quicksilver / MerCruiser Bravo Three front propeller for the current four-blade-front and three-blade-rear counter-rotating system.

This listing is for the front propeller only. It is 15 1/2 inches in diameter with 24 inches of pitch and rotates left-hand. It must be paired with the matching 24-pitch right-hand rear propeller 8M0123407 or Mercury equivalent 8M8022430; it must not be mixed with the earlier Classic 3+3 propeller generation.

⚙️ Key Features

• Genuine Quicksilver / Mercury Marine Bravo Three front propeller
• 15 1/2-inch diameter x 24-inch pitch
• Four-blade stainless-steel construction
• Left-hand rotation with solid-steel spline hub
• Front propeller only; matching rear propeller required

🚤 Compatibility

Commonly used on

• MerCruiser Bravo Three current-generation 4+3 counter-rotating propeller systems
• 24-pitch applications using the matching right-hand rear propeller

Typically suits

• Engine models:
• MerCruiser Bravo Three sterndrives from approximately 1993 onward where the current 4+3 propeller geometry is specified
• MerCruiser 4.3L petrol packages - approximately 155HP-250HP
• MerCruiser 5.0L and 5.7L petrol packages - approximately 180HP-300HP
• MerCruiser 6.2L, 7.4L, 454, 496, 502 and 8.2L petrol packages
• MerCruiser 2.8L, 3.6L, 4.2L and 7.3L diesel packages with Bravo Three drives
• Pitch selection is controlled by hull, displacement, drive ratio and achieved wide-open-throttle RPM
• HP Range: Not fixed by horsepower; Bravo Three drive, ratio, hull and pitch controlled
• Engine Type: MerCruiser Bravo Three counter-rotating sterndrive
• Year Range: Approximately 1993 onward; current 4+3 generation only

🔌 Function

The front propeller rotates opposite the rear propeller to recover swirl energy and generate straight, efficient thrust. The four-blade front improves grip, acceleration and load carrying.

⚠️ Common Signs of Failure

• Front blades are bent, cracked or cavitation-damaged
• The front propeller is paired with the wrong rear pitch or generation
• Splines or thrust faces are worn
• Vibration develops after impact damage
• A current 4+3 propeller has been mixed with an earlier Classic 3+3 component

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 8M0123408 Quicksilver current front-propeller reference
• 8M8022420 Mercury OEM-equivalent 24P front propeller
• 8M8022429 related polished-finish Mercury front propeller

OEM / Related Numbers

• 8M0123408
• QS3325S
• 8M8022420
• 8M8022429
• 8M0123407 matching Quicksilver 14 x 24 rear propeller
• 8M8022430 matching Mercury 14 x 24 rear propeller

Aftermarket / Verified Equivalents

• Mercury Marine: 8M8022420 - direct OEM-equivalent 24P front propeller
• Quicksilver: QS3325S - alternate stocking number for 8M0123408
• Hill Marine Signature Four by Four: T24L4DS-883 front propeller
• Yanmar: 196350-09440 - related cross-brand 24P four-blade front propeller
• Hill Marine complete 24P Bravo Three matched propeller set

📦 Condition

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