Description

Mercury MerCruiser Quicksilver 832830A45 is a genuine Black Max aluminum propeller in a 14.5″ diameter x 19″ pitch, right-hand rotation, 3-blade configuration. Current Mercury references position the Black Max family as a durable, general-purpose aluminum prop line built from patented Mercalloy for strong everyday performance and easy serviceability, while current part-specific listings identify 832830A45 as the 14.5 x 19 RH version commonly supplied with the Flo-Torq II hub kit 835257K1.

Key Features

• Genuine Mercury Black Max propeller, part number 832830A45.
• 14.5″ diameter x 19″ pitch, right-hand rotation, 3 blades.
• Aluminum construction using Mercury’s patented Mercalloy alloy.
• Current part-specific listings show it with Flo-Torq II hub kit 835257K1.
• Mercury describes Black Max as a strong all-around prop choice for boats up to 250 HP and speeds under 50 MPH.

Engine Compatibility

Current part-specific references commonly associate 832830A45 with Mercury and Mariner 90-115 HP FourStroke Command Thrust outboards, 135-300 HP TwoStroke and FourStroke outboards, and MerCruiser Alpha One and Bravo One sterndrives. The strongest supportable match is by gearcase, hub system, shaft application, and performance target rather than by horsepower alone.

Serial Number Fitment Notice

Verify fitment by engine serial number, drive model, gearcase, prop shaft, and hub kit before ordering. With 832830A45, the important checks are the exact 14.5 x 19 RH dimensions and the correct Flo-Torq II setup, especially because several Mercury props can share a similar size while using different hardware or targeting different RPM ranges.

When This Part Needs Replacement

Replace the propeller when blades are bent, chipped, cracked, heavily worn, or when the current prop no longer lets the engine run in the proper WOT RPM range for the boat’s real-world load. Because Black Max is Mercury’s practical all-around aluminum prop family, it is also a common replacement choice when a damaged prop needs dependable OEM-style performance with straightforward serviceability. This replacement guidance is a practical service inference supported by Mercury’s positioning of the Black Max family.

Installation Notes

Confirm the correct Flo-Torq II hub kit 835257K1 and installation hardware before mounting. Current Mercury references show Black Max props using several hub families depending on application, while current part-specific listings for 832830A45 consistently point to Flo-Torq II. After installation, prop selection should still be verified against the engine manufacturer’s recommended WOT RPM range under normal boat load.

Alternate/Superseded Part Numbers

Current Mercury dealer references show 832830ARA, 74874A4, 73508A4, 78120A4, 78120A40, and 78120A45 as earlier or superseded related OEM numbers connected to 832830A45.

Parts Desk Insight

The easy mistake with a prop like this is ordering by diameter and pitch only. For 832830A45, the better match is 14.5 x 19 RH + Black Max family + Flo-Torq II hub compatibility + correct engine RPM target, because that combination matters more than the size stamp alone when you want the boat to run the way it should.

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