Yamaha M/T Series Reliance Propeller - 3 Blade - 14-1/2 x 15 Pitch - RH Rotation - 68F-45970-20-00

Shop Yamaha M/T Series Reliance Propeller 68F-45970-20-00, a 3-blade stainless-steel Yamaha Reliance Series propeller with 14-1/2-inch diameter, 15 pitch, and right-hand rotation.

This Yamaha Reliance propeller is designed for compatible high-horsepower Yamaha in-line four-cylinder outboards, including select F150, F175, and F200 applications. The Reliance Series is built for strong acceleration, grip, and all-around performance on compatible Yamaha outboard setups.

Yamaha 68F-45970-20-00 is an OEM Yamaha Reliance propeller part number. The safest way to confirm fitment is to match the full part number, diameter, pitch, rotation, engine model, and recommended RPM range before purchasing.

Product Details

• Product name: Yamaha M/T Series Reliance Propeller
• OEM part number: 68F-45970-20-00
• Series: Yamaha Reliance Series
• Blade count: 3 blade
• Material: Stainless steel
• Diameter: 14-1/2 inches
• Pitch: 15
• Rotation: Right-hand rotation
• Brand: Yamaha
• Application: Compatible Yamaha outboard applications where 68F-45970-20-00 is specified
• Common model references: Select Yamaha F150, F175, and F200 outboards
• Search variants: Yamaha Reliance Series 15 M 14 1 2, Yamaha Reliance 14-1/2 x 15, 68F-45970-20-00, 68F 45970 20 00

What Yamaha 68F-45970-20-00 Is Used For

Yamaha 68F-45970-20-00 is a Yamaha M/T Series Reliance propeller used on compatible Yamaha outboards where this exact part number, diameter, pitch, and rotation are specified. It is a stainless-steel, 3-blade propeller designed for compatible high-horsepower in-line four-cylinder Yamaha applications.

This Yamaha Reliance propeller may be used when:

• The current propeller is damaged
• The existing propeller matches 68F-45970-20-00
• The boat needs a 14-1/2 x 15 pitch propeller
• Right-hand rotation is required
• The Yamaha parts diagram lists this part number
• The engine setup calls for a Reliance Series propeller
• The boat owner wants OEM Yamaha propeller fitment
• The current propeller is no longer delivering proper RPM or handling

Because propeller fitment affects acceleration, RPM, load carrying, fuel economy, and top-end performance, confirm fitment carefully before ordering.

What 14-1/2 x 15 Means on a Yamaha Reliance Propeller

The 14-1/2 x 15 size refers to the propeller’s diameter and pitch.

• 14-1/2 inches is the propeller diameter.
• 15 pitch is the theoretical forward movement per propeller revolution under ideal conditions.
• RH rotation means right-hand rotation.
• 3 blade refers to the number of propeller blades.
• M/T Series Reliance identifies the Yamaha propeller family.
• 68F-45970-20-00 identifies the OEM Yamaha part number.

The right propeller size helps the outboard operate within its recommended wide-open throttle RPM range. A propeller with the wrong pitch can cause poor acceleration, low RPM, over-revving, or reduced top-end performance.

Why Choose a Yamaha Reliance Series Propeller?

A Yamaha Reliance Series propeller is designed for compatible Yamaha outboard applications where OEM fitment and balanced performance matter. Stainless-steel construction helps support durability, grip, and performance compared with many basic aluminum propeller options.

Yamaha Reliance propellers are commonly chosen for:

• Compatible Yamaha F150, F175, and F200 applications
• Strong all-around boat performance
• Better durability than many aluminum propellers
• Improved grip in many boating conditions
• OEM Yamaha propeller matching
• Reliable right-hand rotation applications
• Restoring original-style performance
• Replacing a damaged or worn Reliance propeller

Always confirm the exact propeller size and part number before ordering.

How to Confirm This Yamaha Reliance Propeller Fits

Confirm fitment before ordering Yamaha Reliance Propeller 68F-45970-20-00. Propeller compatibility depends on engine model, gearcase, hub setup, rotation, diameter, pitch, and the boat’s performance needs.

Before buying, check:

• Yamaha outboard model
• Engine horsepower
• Gearcase size
• Existing propeller part number
• Existing propeller diameter and pitch
• Right-hand or left-hand rotation requirement
• Hub and hardware compatibility
• Recommended wide-open throttle RPM range
• Boat weight and typical load
• Current acceleration and top-speed performance
• Whether 68F-45970-20-00 appears in the parts diagram

If your existing propeller is stamped with 68F-45970-20-00 or your Yamaha parts diagram lists this part number, this is the correct product page to review.

When to Replace a Yamaha Reliance Propeller

Replace a Yamaha Reliance propeller when it is damaged, bent, cracked, worn, slipping, or no longer helping the engine reach the correct RPM range. Even small propeller damage can affect handling and engine performance.

Common signs that a propeller should be inspected or replaced include:

• Bent blades
• Chipped blade edges
• Cracks or impact damage
• Excess vibration
• Slower acceleration
• Loss of top speed
• Engine over-revving
• Engine failing to reach recommended RPM
• Cavitation or ventilation issues
• Hub slipping
• Damage after hitting sand, rocks, or debris

A damaged propeller should be inspected before the next trip, especially if vibration or RPM changes appear after impact.

What to Order With a Yamaha Reliance Propeller

When replacing a Yamaha propeller, inspect the full propeller hardware setup. Replace related hardware only when it is worn, corroded, bent, missing, or specified in the parts diagram or service procedure.

Related parts to verify in the diagram include:

• Yamaha prop nut
• Thrust washer
• Spacer
• Cotter pin
• Hub components
• Propeller hardware kit
• Marine grease
• Propeller wrench
• Lower-unit gear lube
• Drain screw gaskets
• Propeller shaft seals, if damage is suspected

If fishing line is found behind the propeller, inspect the seal area before reinstalling the prop.

Basic Yamaha Propeller Replacement Steps

Always follow Yamaha service guidance for your specific outboard. In general, propeller replacement involves removing the old propeller, inspecting the shaft and hardware, greasing the shaft, and reinstalling the correct propeller and hardware.

Basic process:

1. Turn off the engine and remove the safety lanyard.
2. Shift the engine into neutral.
3. Remove the cotter pin or locking hardware.
4. Remove the propeller nut.
5. Remove the washer, spacer, or related hardware.
6. Slide the old propeller off the shaft.
7. Inspect the propeller shaft for fishing line, corrosion, or damage.
8. Clean and lightly grease the propeller shaft.
9. Install the correct thrust washer and propeller.
10. Reinstall the spacer, washer, nut, and locking hardware.
11. Tighten according to Yamaha service guidance.
12. Confirm the propeller spins freely and is securely installed.

Do not reuse damaged cotter pins, heavily corroded prop nuts, or worn propeller hardware.

Frequently Asked Questions About Yamaha Reliance Propeller 68F-45970-20-00

What is Yamaha 68F-45970-20-00?

Yamaha 68F-45970-20-00 is an OEM Yamaha M/T Series Reliance propeller part number. This product is a 3-blade stainless-steel propeller with 14-1/2-inch diameter, 15 pitch, and right-hand rotation.

What does 14-1/2 x 15 mean on this Yamaha Reliance propeller?

The 14-1/2 x 15 size means the propeller has a 14-1/2-inch diameter and a 15 pitch. Pitch affects acceleration, RPM, load carrying, and top-end performance.

What does RH rotation mean?

RH rotation means right-hand rotation. Always confirm whether your Yamaha outboard setup requires right-hand or left-hand rotation before ordering a propeller.

How do I know if 68F-45970-20-00 fits my Yamaha outboard?

Confirm fitment by checking your Yamaha outboard model, gearcase, existing propeller part number, diameter, pitch, rotation, and parts diagram. If your current propeller or diagram lists 68F-45970-20-00, this is the correct product page to review.

Is this a Yamaha OEM Reliance propeller?

Yes, 68F-45970-20-00 is an OEM Yamaha Reliance Series propeller part number. Always match the full part number, size, and rotation before ordering.

Can I choose this propeller by pitch only?

No, pitch alone is not enough. You should also confirm diameter, rotation, hub setup, engine model, gearcase, current RPM range, and OEM part number.

When should I replace a Yamaha Reliance propeller?

Replace a Yamaha Reliance propeller if the blades are bent, chipped, cracked, worn, causing vibration, or preventing the engine from reaching the recommended RPM range.

What hardware should I inspect when replacing this Yamaha propeller?

When replacing this Yamaha propeller, inspect the thrust washer, spacer, prop nut, cotter pin, hub components, propeller shaft, and any fishing line or corrosion behind the propeller.