What engines are Mercury Black Max propellers designed for?

Black Max aluminum propellers fit most Mercury/Mariner outboards from 2.5 HP up to 250 HP and MerCruiser Alpha/Bravo One sterndrives (with appropriate Flo-Torq hub kits). Always verify gearcase size and WOT RPM range.

How do I choose the right Black Max pitch?

Match pitch to your engine’s recommended WOT RPM range and boat load. If your current prop over-revs, increase pitch; if it under-revs, decrease pitch. Use our size chart on this page as a starting point and water-test to confirm.

Do I need a Flo-Torq hub kit for a Black Max propeller?

Most models use Mercury’s modular Flo-Torq system. Some props include the hub; others require a separate kit. Check your engine/gearcase and part number to choose the correct hub hardware.

Are Black Max propellers good for everyday use?

Yes. Black Max props are durable Mercalloy aluminum with a value-first design—ideal for general-purpose boating on boats typically under 50 mph.

HO Sports Products

XXSmall (4)

XSmall (17)

XS/S (1)

Small (34)

Medium (34)

M/L (1)

Large (34)

XLarge (35)

2XLarge (29)

3XLarge (2)

4XLarge (1)

5XLarge (1)

1 (10)

2 (4)

3 (7)

4 (3)

4-8 (2)

7-11 (2)

8-9 (1)

10-11 (1)

10-14 (1)

10-15 (1)

12-13 (1)

65 (4)

66 (4)

67 (4)

68 (2)

63" (1)

65" (4)

67" (6)

69" (6)

8' (1)

9' (1)

10' (2)

11' (1)

12.6' (1)

13.6' (1)

10'x10' (3)

11.75'x3.5' (1)

11.75'x6.5' (1)

15'x5' (1)

4-8 ARTP (5)

5.5-9.5 ARTP (4)

7-11 ARTP (6)

8.5-12.5 ARTP (4)

10-15 ARTP (6)

4-5 Dbl (1)

4-8 Dbl (5)

5.5-9.5 Dbl (4)

6-7 Dbl (1)

7-11 Dbl (6)

8.5-12.5 Dbl (4)

10-15 Dbl (6)

4-5 RTP (2)

6-7 RTP (2)

65 / 4-8 ARTP (1)

67 / 10-15 ARTP (1)

67 / 7-11 ARTP (1)

69 / 10-15 ARTP (1)

XL/XXL (1)