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Home Marine gearbx NEW Advance 300 Heavy Duty Marine Gearbox 3.53:1 Reduction
NEW Advance 300 Heavy Duty Marine Gearbox 3.00:1 Reduction
NEW Advance 300 Heavy Duty Marine Gearbox 3.00:1 Reduction $15,388.00 Original price was: $15,388.00.$12,250.00Current price is: $12,250.00.
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NEW Advance 300 Heavy Duty Marine Gearbox 4.10:1 Reduction
NEW Advance 300 Heavy Duty Marine Gearbox 4.10:1 Reduction $15,188.00 Original price was: $15,188.00.$12,500.00Current price is: $12,500.00.
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NEW Advance 300 Heavy Duty Marine Gearbox 3.53:1 Reduction

$15,500.00 Original price was: $15,500.00.$12,500.00Current price is: $12,500.00.

The Advance 300 Heavy Duty Marine Gearbox 3.53:1 Reduction is trusted by marine professionals for its rugged construction, precision engineering, and consistent performance. Its optimized 3.53:1 reduction ratio provides excellent torque multiplication, making it ideal for vessels that require maximum pulling power and efficient propulsion in demanding commercial and recreational applications.

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Description

The NEW Advance 300 Heavy Duty Marine Gearbox 3.53:1 Reduction is a high-performance marine transmission built to provide reliable power transfer, outstanding durability, and efficient propulsion for demanding marine applications. Designed for commercial fishing boats, workboats, tugboats, passenger vessels, cargo boats, and recreational craft, the Advance 300 is engineered to deliver dependable performance under continuous heavy-duty operation.

Featuring a 3.53:1 reduction ratio, this marine gearbox increases propeller torque while reducing output shaft speed, resulting in improved thrust, enhanced fuel efficiency, and superior low-speed maneuverability. Manufactured from high-quality marine-grade materials and precision-engineered components, the Advance 300 is built to withstand harsh marine environments and provide years of reliable service.

Whether you’re replacing an existing marine transmission or installing a new propulsion system, the Advance 300 Heavy Duty Marine Gearbox 3.53:1 Reduction is an excellent choice for operators who demand strength, reliability, and long-term performance.


Key Features

  • Brand New Advance 300 Heavy Duty Marine Gearbox
  • 3.53:1 reduction ratio for increased propeller torque and improved propulsion
  • Heavy-duty construction for commercial and recreational marine use
  • Smooth forward, neutral, and reverse gear operation
  • Precision-engineered gears for efficient power transmission
  • High torque capacity for continuous-duty marine applications
  • Corrosion-resistant marine-grade construction
  • Low maintenance design for reduced operating costs
  • Built for dependable performance in demanding marine environments

Specifications

  • Product Name: Advance 300 Marine Gearbox
  • Condition: New
  • Reduction Ratio: 3.53:1
  • Type: Heavy Duty Marine Transmission
  • Application: Marine Propulsion
  • Operation: Forward / Neutral / Reverse
  • Construction: Heavy-duty marine-grade materials

Ideal Applications

The Advance 300 Marine Gearbox 3.53:1 is ideal for:

  • Commercial fishing boats
  • Workboats
  • Tugboats
  • Passenger vessels
  • Cargo vessels
  • Inland waterway boats
  • Recreational boats
  • Marine engine replacement projects
  • Custom marine propulsion systems

Benefits

  • Maximizes propeller thrust for heavy-load applications
  • Improves fuel efficiency through optimized gear reduction
  • Enhances vessel control and low-speed handling
  • Delivers smooth, reliable gear engagement
  • Reduces engine stress during prolonged operation
  • Built for long-lasting performance in harsh marine environments

Why Choose the Advance 300 Marine Gearbox?

The Advance 300 Heavy Duty Marine Gearbox 3.53:1 Reduction is trusted by marine professionals for its rugged construction, precision engineering, and consistent performance. Its optimized 3.53:1 reduction ratio provides excellent torque multiplication, making it ideal for vessels that require maximum pulling power and efficient propulsion in demanding commercial and recreational applications.

Designed for reliability and durability, the Advance 300 helps reduce maintenance costs while delivering dependable performance on every voyage.


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Shipping & Delivery

Shipping & Delivery Policy

Wave Inboard Motors – waveinboardmotors.com Last updated: November 24, 2025

We ship worldwide from our main warehouse in Fort Lauderdale, Florida, USA and have secondary stocking points in California (West Coast) and Rotterdam (Europe).

 
 
CategoryShipping Method & CarrierEstimated Delivery Time (business days)Cost Calculation
Small Parts & AccessoriesUSPS Priority, FedEx Ground, DHL ExpressUSA: 2-5Cont. USA: 3-7
Engines & Generators (<500 kg)Freight LTL (R+L, Old Dominion, DSV)USA: 5-12EU/UK: 10-21
Large Engines / Gensets (>500 kg)Flatbed, container, or Ro-RoUSA: 7-21International: 14-45
Oversized / Crated ItemsSpecialized heavy-haul or ocean freightVaries by destinationQuote only – contact sales
 

Free Shipping (Continental USA only)

  • Orders over $300 (before tax) ship free via ground service
  • Engines & generators are excluded from free shipping

International Shipping

  • All duties, taxes, VAT, and customs clearance fees are the buyer’s responsibility
  • We provide commercial invoices and certificates of origin
  • EU customers: no VAT charged on B2B orders with valid VAT ID
  • Delivery Duty Paid (DDP) available on request (extra charge)

Processing Time

  • In-stock items: same or next business day
  • Special order / factory-direct items (most engines & generators): 3-21 days
  • You will receive a confirmed ship date when order is placed

Tracking & Updates

Every order receives a tracking number the moment it ships. You’ll get automated emails at:

  • Order confirmed
  • Item shipped (with tracking link)
  • Out for delivery
  • Delivered

Signature Requirement

All orders over $2,500 require an adult signature upon delivery.

Shipping Restrictions

  • We cannot ship to P.O. boxes for items over 70 lbs
  • Hazardous materials (batteries, some oils) may require ground-only shipping

Damaged or Lost Shipments

  • Inspect shipment immediately upon receipt
  • Photograph any damage and notify us within 48 hours
  • We file claims on your behalf and ship replacements at no cost

Contact for Freight Quotes or Expedited Shipping

Email: shipping@waveinboardmotors.com Phone: +1 (555) 123-4567 (Mon-Fri 9am-5pm EST)

We’re boaters too — we pack every order as if it were going on our own boat. Thank you for choosing Wave Inboard Motors!

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    wave inboard motors for sale

    Wave Inboard Motors
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