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Home Marine gearbx NEW Advance D300A Heavy Duty Marine Gearbox 4.00:1 Reduction – Reliable Marine Transmission Solution
NEW Advance 300 Heavy Duty Marine Gearbox 5.44:1 Reduction – High Performance Marine Transmission
NEW Advance 300 Heavy Duty Marine Gearbox 5.44:1 Reduction – High Performance Marine Transmission $15,388.00 Original price was: $15,388.00.$12,300.00Current price is: $12,300.00.
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NEW Advance D300A Heavy Duty Marine Gearbox 4.48:1 Reduction – High-Performance Marine Transmission
NEW Advance D300A Heavy Duty Marine Gearbox 4.48:1 Reduction – High-Performance Marine Transmission $16,179.00 Original price was: $16,179.00.$13,500.00Current price is: $13,500.00.
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NEW Advance D300A Heavy Duty Marine Gearbox 4.00:1 Reduction – Reliable Marine Transmission Solution

$17,312.00 Original price was: $17,312.00.$14,000.00Current price is: $14,000.00.

The NEW Advance D300A Marine Gearbox helps maximize vessel performance by delivering consistent and efficient power from the engine to the propeller. Its heavy-duty components provide excellent load handling capability, helping operators achieve reliable operation and improved propulsion control.

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Description

The NEW Advance D300A Heavy Duty Marine Gearbox 4.00:1 Reduction is a high-performance marine transmission designed to deliver reliable power transfer, smooth operation, and exceptional durability in demanding marine environments. Built for heavy-duty applications, this gearbox provides efficient engine-to-propeller power management, making it an ideal choice for commercial vessels, workboats, fishing boats, and professional marine operations.

Featuring a 4.00:1 reduction ratio, the Advance D300A marine gearbox improves torque output and enhances vessel control at lower speeds while maintaining efficient propulsion performance. Its rugged construction and dependable design ensure long service life, even under challenging marine conditions.

Key Features:

  • Heavy-duty marine gearbox engineered for commercial and industrial marine use
  • 4.00:1 reduction ratio for optimized torque and propulsion efficiency
  • Provides smooth and reliable power transmission
  • Durable design built to withstand demanding marine environments
  • Improves vessel maneuverability and low-speed performance
  • Designed for long-term reliability and reduced maintenance requirements
  • Suitable for a variety of marine engine and propulsion systems

Product Benefits:

The NEW Advance D300A Marine Gearbox helps maximize vessel performance by delivering consistent and efficient power from the engine to the propeller. Its heavy-duty components provide excellent load handling capability, helping operators achieve reliable operation and improved propulsion control.

Whether you are replacing an existing marine transmission or upgrading your vessel’s drivetrain system, the Advance D300A 4.00:1 Reduction Gearbox offers the strength, efficiency, and reliability required for professional marine applications.

Product Specifications:

  • Product Name: NEW Advance D300A Heavy Duty Marine Gearbox
  • Reduction Ratio: 4.00:1
  • Gearbox Type: Marine Transmission / Reduction Gearbox
  • Application: Commercial and heavy-duty marine propulsion systems
  • Condition: New

Buy NEW Advance D300A Marine Gearbox 4.00:1 Reduction Online

Choose the NEW Advance D300A Heavy Duty Marine Gearbox 4.00:1 Reduction for dependable marine power transmission, enhanced torque performance, and long-lasting durability. Designed for marine professionals who require a strong and efficient gearbox solution for demanding operations.

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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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The Advance 300 Heavy Duty Marine Gearbox 4.10:1 Reduction is trusted by marine professionals for its robust construction, precision engineering, and dependable performance. Its optimized 4.10:1 reduction ratio provides exceptional torque multiplication, making it ideal for vessels that require increased pulling power, efficient propulsion, and reliable operation under heavy workloads.
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The NEW Advance 300 Heavy Duty Marine Gearbox 4.94:1 Reduction is a high-performance marine transmission designed to deliver exceptional torque, reliable power transfer, and long-lasting durability for demanding marine propulsion systems. Engineered for commercial fishing boats, workboats, tugboats, passenger vessels, cargo vessels, and recreational craft, the Advance 300 provides smooth and efficient operation in challenging marine environments.
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    wave inboard motors for sale

    Wave Inboard Motors
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    • 1963 SC-101, Greer, SC 29651
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