Description
Mercury Black Max 8 x 8.25 RH Propeller (FP430)
This 3-blade plastic propeller has a diameter of 8 inches, a pitch of 8.25 inches and right-hand rotation for the manufacturer-listed applications below.
Key Features
- Three-blade plastic construction
- 8-inch diameter and 8.25-inch pitch
- Right-hand rotation
- Genuine Mercury replacement part for listed historical Chrysler applications
Applications
Replacement for the exact historical Chrysler applications listed above.
Fitment / Product Details
- Chrysler outboards: the manufacturer historical application chart lists FP430 for 6, 7.5 and 8 HP applications from 1978-1981. Match the exact engine model, shaft, original propeller and retaining hardware before ordering. The chart identifies 7.5 HP as a standard replacement application.
- Brand: Mercury
- Series: Black Max
- Part Number: FP430
- Material: Plastic
- Blades: 3
- Diameter: 8 inches
- Pitch: 8.25 inches
- Rotation: Right-hand (RH)
- Hub: Confirm the original engine-specific hub and retaining hardware before installation
- Condition: New
- UPC: 745061006683
What's Included
One Mercury FP430 Black Max plastic propeller. Confirm the original engine-specific hub and retaining hardware before installation. The manufacturer chart lists plastic material. The official part page currently marks FP430 PNLA; Wakeboss availability is determined by this listing. Hub type and spline count were not established reliably, so no generic fitment claim is made. Confirm any hardware reuse against the engine parts diagram.
Service Notes
Inspect the shaft and hardware before installation. Follow the engine manufacturer's instructions for lubrication, hardware selection and tightening torque. Select pitch to keep full-throttle RPM within the engine's specified range under your normal load. The manufacturer chart lists plastic material. The official part page currently marks FP430 PNLA; Wakeboss availability is determined by this listing. Hub type and spline count were not established reliably, so no generic fitment claim is made. Confirm any hardware reuse against the engine parts diagram.
Why You Should Buy
An OEM replacement for the specific historical Chrysler applications in the manufacturer chart.
Common Applications
Replacement for the exact historical Chrysler applications listed above. Match diameter, pitch, rotation, shaft, gearcase and attaching hardware before ordering.
FAQ
What does 8 x 8.25 RH mean?
Diameter is 8 inches, pitch is 8.25 inches, and rotation is right-hand.
Is a hub included?
Confirm the original engine-specific hub and retaining hardware before installation. The manufacturer chart lists plastic material. The official part page currently marks FP430 PNLA; Wakeboss availability is determined by this listing. Hub type and spline count were not established reliably, so no generic fitment claim is made. Confirm any hardware reuse against the engine parts diagram.
How do I confirm fitment?
Match the exact engine/drive model, year, shaft and gearcase to the manufacturer application chart. The total horsepower range covers several applications; it does not mean every engine in that range fits.
How should I choose pitch?
Use your current propeller and measured full-throttle RPM with the engine manufacturer's recommended range under normal boat load.
Is FP430 aluminum?
The manufacturer historical application chart identifies FP430 as plastic (PL).

