Mercury 175 Verado Specifications
| Engine Model: Mercury Verado 175 |
| Engine Type: 4-stroke inline 4-cylinder DOHC 16-valve gasoline outboard engine |
| Total Displacement: 105.7 cu.in (1.7 L) |
| Rated Engine Power: 175 Hp (130 kW) at 6400 rpm |
| Fuel System: Sequential Multi-Point Electronic Fuel Injection (EFI) |
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The Mercury Verado 175 represents the mid-range
offering in the four-cylinder supercharged Verado family, delivering 175
Hp from a remarkably compact 1.7-liter powerplant. This engine achieves
its power and acceleration via a revolutionary supercharger system that
provides forced induction across the entire operating range, generating
exceptional torque throughout the rev range rather than only at high
RPM.
The supercharger allows the engine to use more oxygen and fuel to create
more power, producing automotive-like responsiveness and unbeatable
torque. The Verado 175 features Digital Throttle and Shift (DTS)
controls, electro-hydraulic power steering as standard equipment, and
the Advanced MidSection (AMS) mounting system that cradles the powerhead
to virtually eliminate vibration during operation.
With superior corrosion protection including Mercury's exclusive XK360
aluminum alloy and extensive use of stainless steel components, the
Verado 175 is engineered for durability in demanding marine
environments. Slightly smaller than its six-cylinder siblings yet still
spectacular, the Verado 175 delivers the premium Verado experience in an
efficient, compact package.
Power Output: 175 hp (130 kW) at the propshaft.
Full Throttle Operating Range: 5800-6400 RPM.
Displacement: 1.7 Liters, 1732 cc, 105.7 Cubic Inches (CID).
Engine Type: Inline 4-cylinder, Four-Stroke, 16-valve Dual Overhead
Camshaft (DOHC) configuration.
Bore and Stroke: 3.23 inches x 3.23 inches (82 mm x 82 mm).
Induction System: Supercharged with charge air cooling and electronic
boost pressure control.
Fuel System: Computer controlled Sequential Multi-Port Electronic Fuel
Injection (EFI)
Fuel Requirements: Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON
with 10% Ethanol Maximum.
Ignition System: SmartCraft PCM Digital Inductive.
Charging System: Fully regulated belt driven 70-amp alternator producing
882 W output.
Engine Management: SmartCraft PCM 07 engine control module.
Control System: SmartCraft Digital Throttle and Shift (DTS) providing
smooth, instantaneous, predictable and quiet shifting, as well as
ultra-responsive throttle control.
Engine Protection: SmartCraft Engine Guardian system with comprehensive
operator warnings and automatic power reduction.
Steering: Electro-hydraulic power steering standard; Big Tiller
compatible; hydraulic power steering available.
Gear Ratio: 2.08:1.
Gearcase Options: 4.8-inch heavy-duty gearcase.
Shaft Length Options: 20 inches (508 mm) Long (L), 25 inches (635 mm)
Extra Long (XL), Counter Rotation available on 25-inch models.
Trim System: Power trim and tilt with SmartCraft programmable tilt.
Maximum Trim Range: 20 deg (-5° to 15°).
Maximum Tilt Range: 73 deg (-5° to 68°).
Shallow Water Trim Range: 20 deg.
Cooling System: Water cooled with thermostat and pressure control.
Lubrication System: Integrated dry sump.
Exhaust System: Through propeller hub discharge.
Gear Shift: SmartCraft DTS Forward-Neutral-Reverse (F-N-R).
Recommended Oil: Mercury FourStroke 25W-40 Marine Oil, NMMA certified
FCW SAE 25W-50.
Oil Capacity: Information not specified in search results.
Emissions Certification: CARB 2-Star rating with OEDA 2 Star exhaust
emissions rating.
The foundation of the Mercury 175 Verado is a precision-engineered
inline four-cylinder powerhead displacing 1.7 liters. The long-bolt
design anchors the block and cylinder head to the bedplate and
eliminates the effects of expansion and contraction. An exclusive oil
cooler maintains optimal oil temperature to extend the life of the
engine. The cylinder head incorporates advanced four-valve per cylinder
architecture with Dual Overhead Camshafts (DOHC), enabling optimum valve
placement for superior breathing efficiency.
Each cylinder benefits from two intake and two exhaust valves actuated
directly by the DOHC arrangement, maximizing volumetric efficiency
throughout the 5800-6400 RPM operating range. This 16-valve
configuration enhances both power output and operational smoothness,
contributing to the refined character expected from the Verado family.
The Verado valve train is maintenance-free for the life of the engine,
with non-adjustable valves requiring no servicing. The combustion
chambers are meticulously shaped to complement the supercharged
induction system and sequential multi-port Electronic Fuel Injection,
promoting complete fuel combustion and optimized thermal efficiency
under all operating conditions.
The supercharged induction system with charge air cooling distinguishes
the Mercury 175 Verado from conventional outboards in its power class.
The supercharger provides forced induction across the entire operating
range, generating exceptional torque throughout the rev range rather
than only at high RPM. This supercharged power delivery provides
remarkable acceleration and the ability to keep heavily loaded boats on
plane at slower speeds while climbing larger waves with ease.
The charge air cooling system reduces intake air temperature after
compression, increasing air density for improved combustion efficiency
and power output. Electronic boost pressure control precisely manages
supercharger output to match operating conditions and protect the
engine. At low rev rates below 3000 RPM, the supercharger remains
inactive, allowing the engine to use little more fuel than the naturally
aspirated F115, contributing to excellent fuel efficiency in the
critical low-to-mid range.
Only when the throttle lever is fully opened does the supercharger
engage, providing the instant boost that delivers tremendous hole shot,
unrivaled mid-range punch, and excellent top speed. The supercharger
housing features marine-grade anodized aluminum construction with
Teflon-coated rotors for corrosion resistance and durability. The belt
driving the supercharger is super reliable and inexpensive to replace,
while the timing chain is 100 percent service-free for the life of the
engine.
The Mercury Verado 175 employs a sophisticated Computer Controlled
Sequential Multi-Port Electronic Fuel Injection (EFI) system that
precisely meters fuel delivery to each cylinder based on continuous
input from multiple engine sensors. This advanced system monitors
parameters including intake air temperature, manifold absolute pressure,
engine coolant temperature, and throttle position to calculate optimal
fuel requirements for any operating condition encountered.
The sequential multi-port design delivers fuel individually to each
cylinder in perfect synchronization with its intake stroke, providing
superior cylinder-to-cylinder distribution and instantaneous throttle
response compared to batch-fire systems. This precision fueling is
essential for achieving the 175 Hp output while maintaining smooth
operation across the broad 5800-6400 RPM power band.
The system ensures reliable starting, seamless acceleration, and
consistent performance whether idling in harbors or running at wide-open
throttle in demanding conditions. The fuel calibration is specifically
developed for supercharged applications, optimizing power delivery while
maintaining the durability required for extended operation. The system
operates on regular unleaded fuel with minimum 87 Octane (R+M/2) or 90
RON rating, providing flexibility and reduced operating costs.
The Mercury Verado 175 utilizes an integrated dry sump lubrication
system engineered to ensure reliable oil delivery to all critical
components under all operating conditions. This advanced system
maintains a positive pressure oil supply to the crankshaft main
bearings, connecting rod bearings, camshaft journals, and 16-valve
valvetrain regardless of engine attitude or operating conditions.
The dry sump design provides several advantages including reduced risk
of oil starvation during extreme maneuvers, improved oil cooling, and
more consistent lubrication during high-performance operation. The
system circulates Mercury FourStroke 25W-40 Marine Oil, NMMA certified
FCW SAE 25W-50, specifically formulated for the demanding marine
environment with enhanced corrosion protection properties and the film
strength required for supercharged applications. An exclusive oil cooler
maintains optimal oil temperature to extend the life of the engine.
The water-cooled cooling system utilizes a positive displacement water
pump drawing water through gearcase-mounted pickups and circulating it
through precision-engineered cooling passages within the cylinder block
and cylinder head. A thermostat regulates coolant flow to maintain
optimal operating temperatures for combustion efficiency and component
longevity, allowing the engine to reach efficient operating temperatures
quickly before opening to permit full circulation.
The system includes pressure control to maintain adequate cooling flow
across all engine speeds and operating conditions encountered. This
thermostatically controlled system ensures consistent operating
temperatures for optimal combustion efficiency, fuel economy, and
component longevity.
Overheat sensors interface with the SmartCraft Engine Guardian system to
provide operator warnings and automatic power reduction if cooling
system anomalies occur. The cooling capacity is engineered to provide
consistent performance in varying water temperatures, supporting the
engine's capability for sustained operation in diverse environments.
| Mid Section and Lower Unit |
The midsection of the Mercury Verado 175 features the innovative
Advanced MidSection (AMS) design that cradles the powerhead to virtually
eliminate vibration during operation. This specially designed cradle
mounting system surrounds the powerhead with precision-engineered mounts
that isolate vibration while in motion. As thrust load increases during
acceleration and high-speed operation, the AMS mounting system stiffens
progressively to improve handling characteristics.
This design provides more lift and better top speed performance while
eliminating the crabbing effect felt in large displacement four-stroke
outboards. The AMS represents a significant advancement in outboard
mounting technology, contributing to the refined driving experience.
The lower unit features a heavy-duty 4.8-inch gearcase engineered for
minimal hydrodynamic drag while maintaining exceptional durability. The
forward-neutral-reverse (F-N-R) gear engagement is accomplished through
the SmartCraft Digital Throttle and Shift (DTS) system, providing
instantaneous response and smooth shifting by eliminating the hesitation
of traditional mechanical cable systems.
The 2.08:1 gear ratio provides an optimum balance between acceleration
and top-end speed for a wide range of applications. The water pump is
strategically positioned for easy inspection and service access. Counter
rotation gearcases are available in the 25-inch shaft length for
twin-engine applications requiring opposite propeller rotation.
The Power Trim and Tilt system on the Mercury Verado 175 is a SmartCraft
programmable electro-hydraulic actuated mechanism providing complete
control over engine angle relative to the transom. The trim function,
utilized while underway, allows the operator to optimize boat attitude
for varying conditions, improving fuel efficiency, ride quality, and
performance.
The SmartCraft programmability enables integration with vessel control
systems for enhanced operational convenience. The maximum trim range
extends to 20 deg, spanning from -5 deg to 15 deg, which includes useful
shallow water drive capability for operating in minimal water depths
without propeller strike.
The tilt function raises the engine completely clear of the water for
trailering, launching, beaching, and maintenance access, with a maximum
tilt range of 73 deg from -5 deg to 68 deg. The hydraulic system is
self-contained and engineered for smooth, responsive operation under all
conditions. The trim range is calibrated to support the unique handling
characteristics of the AMS mounting system and supercharged power
delivery.
The Mercury Verado 175 is designed to accommodate a comprehensive range
of propeller options, allowing precise performance tailoring for
specific boat and application requirements. For best all around
performance from any outboard and boat combination, a propeller should
be selected that allows the engine to operate in the upper half of the
recommended full throttle RPM range of 5800-6400 with the boat normally
loaded.
This RPM range provides better acceleration while maintaining maximum
boat speed. If changing conditions cause the RPM to drop below the
recommended range, such as warmer more humid weather, operation at
higher elevations, increased boat load, or a dirty boat bottom or
gearcase, a propeller change or cleaning may be required to maintain
performance and ensure the outboard durability.
Checking full throttle RPM using an accurate tachometer with the engine
trimmed out to a balanced-steering condition without causing the
propeller to break loose is essential for proper propeller matching. The
Verado 175 is compatible with various propeller series including the
Enertia stainless steel propeller, with applications such as the Bar
Crusher 670HT utilizing an 18-inch Enertia stainless prop to achieve
approximately 40 knots at WOT. The engine is typically supplied without
a propeller, recognizing that propeller selection is best determined by
a qualified dealer based on the buyer's specific vessel and performance
expectations.
Dry Weight: The lightest model configuration weighs 510 lbs (231 kg).
Comparative Weight: 231 kg base engine without oil, propeller, or
integral steering cylinder.
Shaft Length Options: 20 inches (508 mm) Long, 25 inches (635 mm) Extra
Long.
Transom Height: 508 mm for Long shaft model, 635 mm for Extra Long shaft
model.
Installation Hardware: The outboard must be secured to the transom with
four 12.7 mm (1/2 inch) diameter mounting bolts and locknuts provided,
installed with two bolts through the upper set of holes and two bolts
through the lower set of holes.
The Mercury Verado 175 is designed for straightforward maintenance,
incorporating features that simplify routine service procedures. Mercury
Marine recommends servicing intervals every 100 hours or annually after
the first 20 hours or three months. The recreational usage warranty
extends to five years provided servicing is undertaken by an authorized
Mercury Marine service centre.
Powerhead access is very good for such a complex engine, with the sump
oil level dipstick, spark plugs with integrated ignition coils in the
caps, and belt-driven alternator easily reached. Key maintenance
requirements include regular engine oil and filter changes using Mercury
FourStroke 25W-40 Marine Oil or NMMA certified FCW SAE 25W-50. The belt
driving the supercharger is super reliable and inexpensive to replace,
while the timing chain is 100 percent service-free for the life of the
engine and the valves are non-adjustable and also require no servicing.
Gearcase lubricant requires regular inspection and replacement at
specified intervals. The water pump impeller should receive annual
inspection with replacement as needed. Sacrificial anodes require
regular inspection and replacement when significantly eroded to maintain
galvanic corrosion protection. The SmartCraft Engine Guardian system
monitors critical engine parameters and provides operator alerts through
the VesselView system, helping prevent damage before it occurs.
Freshwater flushing after operation in salt, brackish, or polluted water
is essential, facilitated through designated attachment points. After
more than 130 hours of saltwater use in one test, zero corrosion was
observed anywhere on or in the engine, attesting to the effectiveness of
the corrosion protection systems.
The Mercury Verado 175 is designed for a wide range of boating
applications where refined supercharged power is desired. The engine is
suitable for lighter offshore boats, bay boats, and premium pontoons,
providing a refined alternative to traditional two-stroke engines.
Multi-species fishing boats utilize the engine's supercharged torque for
quick planing and efficient cruising when covering extensive water.
Pontoon boats and tritoons realize the benefits of the exceptional
low-end torque for pulling watersports participants and maintaining
speed with passenger loads.
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