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FLASHSALE26

14" Propeller Safety Guard – Fits Mercury, Yamaha, Honda, BRP, Suzuki 70-100 HP (Replaces SeaSierra SP62814)

Regular price $141.00

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Delivery and Shipping

Orders are typically processed within 1–2 business days.


U.S. orders usually arrive within 6–15 days, depending on stock location and destination.


International delivery times may vary due to customs processing.


Tracking information will be provided once your order ships.

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This 14" Propeller Safety Guard is designed for 70-100 HP outboard motors from manufacturers including Mercury, Yamaha, Honda, BRP, and Suzuki. It is compatible with propellers up to 13.5 inches in diameter and intended for vessels with a maximum speed of 25 mph (approx. 22 knots).

This part is a direct replacement for SeaSierra SP62814.

  • Installation requires drilling and mounting to the cavitation plate and skeg.
  • Constructed from rigid polypropylene with stainless steel hardware for durability.
  • The bright red color offers high visibility for added safety.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number
SeaSierra SP62814

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Mercury engines, this guard fits 70-100 HP models, excluding Big Foot & High Thrust types.

For Yamaha engines, this guard fits 70-100 HP models, excluding High Thrust models.

For Honda engines, this guard fits standard 70-100 HP models.

For BRP (Evinrude/Johnson) engines, this guard fits 70-100 HP models, excluding E-TEC models.

For Suzuki engines, this guard fits standard 70-100 HP models.

Brand HP Range Application Notes
Mercury 70-100 HP Except Big Foot & High Thrust models
Yamaha 70-100 HP Except High Thrust models
Honda 70-100 HP Standard models
BRP (Evinrude/Johnson) 70-100 HP Except E-TEC models
Suzuki 70-100 HP Standard models

Technical Specs

Product Type
Propeller Safety Guard
Installation
Mounted to cavitation plate and skeg via bolts (drilling required)
Material
Rigid polypropylene plastic with 304 stainless steel hardware
Color
Safety Red
Dimensions
44 × 34.5 × 25 cm (package dimensions)
Weight
2.774 kg (6.12 lbs)
Maximum Propeller Size
13.5" diameter
Maximum Vessel Speed
25 mph (22 knots)
Other Technical Attributes
Not suitable for Big Foot or High Thrust models (require larger 16" model)

What’s in the Box

  • 1 × Polycarbonate Propeller Guard
  • 9 × Sets of Installing Bolts
  • 1 × Drill Bit

Installation Notes

  1. Position the guard on the underside of the cavitation plate, ensuring equal distance between the guard and the propeller during rotation.
  2. Align the guard as far forward on the cavitation plate as possible.
  3. Remove the trim tab under the cavitation plate before installation.
  4. Drill 6 holes through both the cavitation plate and guard on each side, insert bolts, washers, and Nyloc nuts, and loosely tighten.
  5. Drill 2 holes through the lower skeg as illustrated, insert bolts, washers, and Nyloc nuts, and securely tighten.
  6. Finally, tighten the bolts on the cavitation plate.

Troubleshooting & FAQ

What vessels is this guard intended for?

This propeller guard is designed for vessels that do not exceed 25 mph (or approximately 22 knots) and are equipped with a propeller up to 13.5 inches in diameter.

Will this fit my Mercury Big Foot or Yamaha High Thrust motor?

No, this model is not suitable for Big Foot or High Thrust models. These engine types require the larger 16" propeller guard model to ensure proper fit and function.

What tools are required for installation?

Installation requires basic hand tools for tightening bolts and a drill with a 5/16" bit, which is included in the package.

Does this guard affect boat performance?

Yes, it is designed to increase propeller efficiency and boat acceleration, which can help reduce overall fuel consumption. It also enhances boat control and handling.

Is the trim tab compatible with this guard?

No, you must remove the trim tab located under the cavitation plate before installing the propeller guard.

What is the guard made from?

The guard is made of a special, rigid polypropylene material that is rust-resistant, lightweight, and durable. The included hardware is 304 stainless steel.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

  • Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
  • This is an aftermarket replacement, not an OEM component.
  • Professional installation is recommended for safety and performance.

About Sea Sierra

  • Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
  • Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
  • Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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