Quicksilver Q4 14.6″ Diameter X 21″ Pitch, 4-Blade Stainless Steel Propeller, Left Hand Rotation Model # 21440698 Mfg # 8M0103531
€700.00
QUICKSILVER Q4 14.6″ Diameter X 21″ Pitch, 4-Blade Stainless Steel Propeller, Left Hand Rotation
The Q3 is a revolutionary propeller that improves both acceleration and top speed on center consoles, high-horsepower pontoons, and sterndrive powered runabouts. The design consists of high rake angles and thin blades resulting in the Q3 being the highest performing 3-blade propeller in the Quicksilver line-up.
Key Features
- 14.6″ diameter, 21″ pitch, left-hand rotation
- Stainless steel propeller
- Highest performing 3-blade propeller in the Quicksilver line-up
- Revolutionary prop that improves both acceleration and top speed
Description
Quicksilver Q4 14.6″ Diameter x 21″ Pitch
4-Blade Stainless Steel Propeller – Left Hand Rotation
Engineered for boaters who value reliability, precision, and consistent performance, the Quicksilver Q4 14.6″ Diameter x 21″ Pitch 4-Blade Stainless Steel Propeller with Left Hand Rotation represents a refined approach to modern marine propulsion. Rather than relying on generic designs, this propeller has been purpose-built to support smoother acceleration, improved handling, and dependable efficiency across a wide range of boating conditions.
Through thoughtful engineering and proven materials, performance expectations are not merely met—they are elevated.
Understanding the Quicksilver Q4 Series
A Design Philosophy Built Around Control
Within the Quicksilver lineup, the Q4 series has been recognized for its ability to deliver balanced thrust and enhanced grip. By utilizing a four-blade configuration, water contact is maintained more consistently. Consequently, power transfer is stabilized, and unwanted slip is significantly reduced.
Because control is prioritized at every speed range, confidence is naturally increased for all users, regardless of experience level.

Why Four Blades Matter
While three-blade propellers remain common, four-blade designs offer distinct advantages. Additional blade surface area allows torque to be distributed more evenly. As a result, smoother hole-shot performance is achieved, while mid-range responsiveness remains strong.
Moreover, stern lift is enhanced, which contributes to a more level ride and improved visibility during acceleration.
Key Product Specifications Explained
Precision Measurements That Impact Real-World Performance
Each specification of the Quicksilver Q4 14.6 x 21 propeller has been selected with intent:
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Diameter: 14.6 inches
A balanced diameter supports efficient water displacement while maintaining responsiveness. -
Pitch: 21 inches
Optimized for cruising efficiency and higher top-end speed when paired with compatible engines. -
Blade Count: 4
Increased blade contact improves grip, stability, and load-handling capability. -
Material: Stainless Steel
Superior strength ensures minimal flex and long-term durability. -
Rotation: Left Hand (Counter-Rotating)
Designed specifically for applications requiring counter-rotation to maintain balanced propulsion.
Through these combined elements, predictable and repeatable performance is consistently delivered.
Stainless Steel Construction Advantages
Strength That Preserves Performance
Unlike aluminum alternatives, stainless steel maintains blade shape under high stress. Therefore, hydrodynamic efficiency is preserved even at elevated RPM levels. Because flexing is minimized, engine output is translated into forward motion more effectively.
Additionally, impact resistance is increased, offering greater protection when navigating variable water conditions.
Corrosion Resistance for Long-Term Reliability
Saltwater and freshwater environments both demand durable materials. As stainless steel resists corrosion more effectively, long-term reliability is enhanced. Consequently, maintenance demands are reduced, and overall lifespan is extended.Quicksilver Q4 14.6 Diameter X 21
Left Hand Rotation: Purpose and Benefits
Designed for Balanced Engine Configurations
Left hand rotation propellers are commonly used in dual-engine or counter-rotating setups. By spinning opposite to standard right-hand props, torque imbalance is reduced. As a result, straighter tracking and improved steering balance are achieved.
When paired correctly, smoother handling and reduced operator fatigue are experienced.

Performance Benefits You Can Expect
Improved Acceleration and Throttle Response
Because water grip is maintained more consistently, acceleration feels smoother and more controlled. Instead of abrupt power delivery, a progressive and predictable response is experienced.
As a result, planing times are reduced without sacrificing comfort.
Enhanced Handling in Challenging Conditions
In rough water or during sharp turns, the additional blade provides increased bite. Consequently, ventilation and cavitation are minimized, allowing steering control to remain reliable.
This stability supports safer and more enjoyable outings for everyone on board.
Designed With Inclusive Boating in Mind
Performance That Supports Every User
Whether cruising with family, towing watersports enthusiasts, or navigating offshore routes, this propeller adapts to diverse needs. Because ease of use and dependability are emphasized, confidence is supported across different skill levels.
Furthermore, compatibility with a wide range of engines ensures accessibility without unnecessary complexity.
Hydrodynamic Design and Water Flow Optimization
How Blade Geometry Influences Efficiency
At the core of the Quicksilver Q4 14.6″ x 21″ 4-Blade Stainless Steel Propeller lies an advanced hydrodynamic profile. Each blade has been shaped to manage water flow efficiently while maintaining consistent pressure distribution. Because turbulence is minimized, drag is reduced, and forward thrust is preserved.
As water moves across the blade surface, controlled lift is generated. Consequently, smoother propulsion is achieved without unnecessary resistance. Rather than forcing power through the water, energy is guided efficiently, resulting in balanced performance.
Reduced Cavitation Through Intelligent Engineering
Cavitation often occurs when pressure drops form air pockets along the blade surface. With the Q4 design, blade spacing and curvature have been optimized to maintain stable pressure zones. Therefore, cavitation risk is significantly lowered, even during aggressive acceleration or high-load operation.
As a result, vibration is minimized, and long-term drivetrain stress is reduced.
Acceleration Performance and Hole-Shot Efficiency
Faster Planing Without Compromising Comfort
During initial throttle engagement, consistent water contact is maintained by the four-blade configuration. Because grip is increased, the engine can transfer power more effectively. Consequently, faster planing is achieved with less bow rise.
Rather than feeling abrupt, acceleration remains smooth and controlled. This characteristic is especially valuable when passengers are on board, as comfort and safety are preserved.
Improved Load-Carrying Capability
When additional weight is introduced—whether from gear, fuel, or passengers—performance demands increase. Fortunately, the added blade surface area allows thrust to remain stable under load. Therefore, performance consistency is preserved even in fully loaded conditions.
This adaptability ensures reliability across varied boating scenarios.
Mid-Range Control and Cruising Stability
Predictable Throttle Response at Cruising Speeds
Mid-range performance is where many boaters spend most of their time. Within this range, the Quicksilver Q4 14.6 x 21 propeller delivers refined control. Because RPM fluctuations are reduced, throttle response feels steady and predictable.
As a result, cruising becomes more efficient and less fatiguing over extended distances.
Enhanced Directional Stability
Directional stability plays a critical role in overall handling. With increased blade engagement, lateral movement is minimized. Consequently, straight-line tracking is improved, especially in crosswinds or choppy water.
This stability allows greater confidence during long cruising sessions.

Fuel Efficiency and Engine Load Management
Optimized Power Transfer for Lower Fuel Consumption
Fuel efficiency is influenced not only by engine design but also by propeller efficiency. Because stainless steel blades resist flexing, energy loss is minimized. Therefore, more engine output is converted into usable thrust.
Over time, this efficiency contributes to reduced fuel consumption, particularly at cruising RPMs.
Reduced Engine Strain Over Time
Consistent propulsion reduces unnecessary engine stress. As torque is distributed evenly across four blades, drivetrain components experience smoother operation. Consequently, wear is minimized, supporting long-term engine health.
This benefit is especially valuable for boaters who log frequent hours on the water.
Handling Benefits in Real-World Conditions
Confident Turning and Maneuverability
Sharp turns demand reliable grip. With the Q4 design, additional blade contact ensures water remains engaged during directional changes. As a result, steering response remains precise without sudden loss of control.
Because ventilation is reduced, tighter turns can be executed with confidence.
Improved Performance in Rough Water
Challenging water conditions require stability. Fortunately, the added blade enhances bite in aerated or disturbed water. Consequently, consistent thrust is maintained even when waves disrupt surface flow.
This capability supports safer navigation in unpredictable environments.
Compatibility With Modern Engine Setups
Designed for Counter-Rotating Applications
Left hand rotation plays a vital role in balanced propulsion systems. When used in twin-engine configurations, opposing rotation offsets torque effects. Therefore, smoother handling and improved balance are achieved.
Proper pairing ensures optimal performance while reducing steering corrections.
Broad Engine Compatibility
The Quicksilver Q4 series has been engineered to support a wide range of sterndrive and outboard engines. Because standardized hub systems are utilized, installation flexibility is enhanced.
This inclusive compatibility allows more boaters to benefit without extensive modifications.
Practical Benefits for Diverse Boating Styles
Ideal for Recreational and Performance Use
From relaxed cruising to high-demand towing, performance remains adaptable. Because acceleration, control, and stability are balanced, the propeller performs reliably across varied use cases.
This versatility eliminates the need for multiple propeller options.
Supporting Watersports and Towing Applications
Watersports require strong low-end torque and steady pull. With increased blade surface, consistent thrust is delivered at lower speeds. Consequently, towing performance feels smoother and more predictable.
Participants benefit from improved ride quality and safety.
Installation Considerations and Fitment Guidance
Proper Installation for Optimal Performance
Correct installation plays a critical role in how effectively the Quicksilver Q4 14.6″ Diameter x 21″ Pitch 4-Blade Stainless Steel Propeller with Left Hand Rotation performs. When installed using the recommended hub system, vibration is minimized and power transfer is optimized. Because alignment is maintained, smoother operation is consistently achieved.Quicksilver Q4 14.6 Diameter X 21
Rather than treating installation as a simple swap, attention is encouraged to ensure peak performance is unlocked.
Hub System Compatibility Explained
Quicksilver propellers are designed to work with interchangeable hub kits. By using the correct hub, shock absorption is improved during gear shifts. Consequently, drivetrain components are better protected from sudden torque changes.Quicksilver Q4 14.6 Diameter X 21
This modular approach allows the propeller to adapt to a wide range of engine brands without sacrificing reliability.
Quicksilver Q4 14.6 Diameter X 21 Maintenance and Long-Term Ownership Benefits
Reduced Maintenance Through Durable Design
Stainless steel construction offers inherent resistance to wear and corrosion. Therefore, frequent repairs and replacements are less likely to be required. Because blade integrity is preserved, performance remains consistent over time.
Routine inspections are still recommended; however, overall maintenance demands remain minimal.
Long Service Life in Freshwater and Saltwater
Exposure to harsh marine environments can degrade inferior materials. Fortunately, stainless steel resists pitting and oxidation more effectively. As a result, long-term usability is enhanced, even in saltwater conditions.
This durability supports peace of mind for long-term ownership.
Cost Efficiency and Value Over Time
An Investment That Delivers Ongoing Returns
While stainless steel propellers often represent a higher upfront cost, value is delivered through longevity and performance consistency. Because efficiency is maintained, fuel savings accumulate over time.
Additionally, reduced engine wear contributes to lower service costs throughout ownership.
Fewer Replacements Compared to Aluminum Props
Aluminum propellers are more susceptible to bending and fatigue. In contrast, the Q4’s stainless steel blades maintain their shape under stress. Consequently, replacement frequency is reduced, improving total cost of ownership.
This long-term reliability supports smarter purchasing decisions.
Performance Comparison: Four-Blade vs. Three-Blade Propellers
Stability and Control Advantages
Four-blade propellers maintain greater water contact at all times. As a result, enhanced stability is achieved, especially during acceleration and cornering. Three-blade alternatives may offer marginally higher top-end speed; however, control and smoothness are often reduced.
For many applications, consistent performance outweighs minimal speed gains.
Comfort and Ride Quality Differences
With smoother power delivery, vibration is reduced. Consequently, ride comfort is improved for everyone on board. Because load handling is more predictable, stress on the operator is also minimized.
This comfort advantage becomes increasingly noticeable during longer outings.
Stainless Steel vs. Aluminum: Material Comparison
Performance Under Load
Stainless steel resists flexing when torque increases. Therefore, blade pitch remains accurate at higher speeds. Aluminum blades, by comparison, may flex and lose efficiency under similar conditions.
This rigidity supports reliable performance in demanding situations.
Quicksilver Q4 14.6 Diameter X 21 Durability and Impact Resistance
While aluminum may absorb minor impacts, it often deforms permanently. Stainless steel, on the other hand, maintains structural integrity in most conditions. As a result, performance degradation is less likely.selecting a propeller
This resilience contributes directly to long-term reliability.
Quicksilver Q4 14.6 Diameter X 21 Safety and Handling Considerations
Improved Control Enhances On-Water Safety
Predictable handling reduces the likelihood of sudden maneuvering issues. Because thrust remains consistent, steering inputs feel natural and controlled. Consequently, safer navigation is supported in crowded or challenging waterways.
This benefit is especially important when passengers or towed riders are involved.
Reduced Fatigue for Operators
Smooth acceleration and stable cruising reduce constant throttle adjustments. As a result, operator fatigue is minimized during extended use.
Comfort and control combine to create a more enjoyable boating experience.
Ideal Buyer Profiles for the Quicksilver Q4 14.6 x 21
Who Benefits Most From This Propeller
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Recreational boaters seeking smoother handling
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Watersports enthusiasts requiring strong low-end torque
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Offshore cruisers navigating variable conditions
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Twin-engine boat owners using counter-rotating setups
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Boaters prioritizing long-term durability and efficiency
Because performance versatility is emphasized, a wide range of users are supported.
Buyer Questions Answered With Clarity and Confidence
Common Concerns Addressed Proactively
Before a purchase is made, clarity is often sought. For this reason, frequently asked questions surrounding the Quicksilver Q4 14.6″ Diameter x 21″ Pitch 4-Blade Stainless Steel Propeller with Left Hand Rotation are addressed transparently. By anticipating buyer concerns, confidence is strengthened and decision fatigue is reduced.
Is a 21-Inch Pitch Right for My Boat?
Pitch selection influences speed and engine RPM. A 21-inch pitch is typically selected for setups where cruising efficiency and higher top-end speed are desired. Because each engine and hull combination differs, manufacturer guidelines should always be referenced.Quicksilver Q4 14.6 Diameter X 21
When matched correctly, balanced performance is achieved without overloading the engine.
Will This Propeller Improve Fuel Efficiency?
Fuel efficiency improvements are often experienced due to reduced blade flex and optimized hydrodynamic design. Because stainless steel maintains its shape under load, wasted energy is minimized. Consequently, smoother RPM ranges and lower fuel consumption may be observed, particularly during cruising speeds.Quicksilver Q4 14.6 Diameter X 21
Actual results will vary depending on operating conditions and boat configuration.
Is Left Hand Rotation Necessary for My Setup?
Left hand rotation is required in counter-rotating engine configurations. By opposing standard right-hand rotation, torque effects are neutralized. Therefore, straight-line tracking and balanced steering are improved.
Proper rotation selection ensures compatibility and optimal handling.
Can This Propeller Be Used for Watersports?
Watersports performance is enhanced through consistent low-end torque. Because the four-blade design maintains water contact at lower speeds, steady pull is delivered. As a result, towing applications feel smoother and more controlled.
Participants benefit from improved stability and comfort.
Real-World Use Case Scenarios
Confident Cruising With Family and Friends
During leisure cruising, smooth acceleration and stable handling enhance comfort. Because vibration is reduced, onboard conversations remain uninterrupted. Consequently, shared experiences feel more relaxed and enjoyable.
This refinement supports inclusive boating moments for everyone onboard.
Reliable Performance for Towing and Watersports
Strong hole-shot performance is essential when towing skiers or wakeboarders. With increased blade surface area, thrust delivery remains consistent. Therefore, smoother launches and sustained pull are achieved.Quicksilver Q4 14.6 Diameter X 21
Safety and enjoyment are supported for both operators and participants.
Stability for Offshore and Open-Water Navigation
Open-water conditions introduce unpredictability. Fortunately, enhanced grip in aerated water maintains thrust consistency. As a result, control is preserved even in challenging environments.
This reliability builds confidence when conditions change unexpectedly.Quicksilver Q4 14.6 Diameter X 21
Quicksilver Q4 14.6 Diameter X 21 Understanding Diameter and Pitch Selection
Why Diameter Matters
Diameter determines how much water is moved with each rotation. A 14.6-inch diameter provides a balanced approach, offering sufficient thrust without excessive drag. Because water displacement is optimized, efficiency is maintained across speed ranges.
Proper diameter selection ensures responsive handling and engine health.
How Pitch Affects Speed and Load
Pitch influences how far the propeller travels through the water per revolution. A 21-inch pitch favors higher speed potential while maintaining efficiency. However, incorrect pitch selection can strain the engine.Quicksilver Q4 14.6 Diameter X 21
Therefore, compatibility checks remain essential before installation.
Brand Trust and Quicksilver Engineering Excellence
A Legacy of Marine Innovation
Quicksilver has built a reputation for quality through decades of marine engineering. By combining research-driven design with rigorous testing, dependable products are consistently delivered.boat propellers near me
This commitment to excellence is reflected in the Q4 series.
Quicksilver Q4 14.6 Diameter X 21 Quality Control and Manufacturing Standards
Each propeller undergoes strict quality checks before distribution. Because tolerances are maintained precisely, balance and performance consistency are ensured.boat propellers near me
As a result, buyers receive a product that meets professional standards.





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