My Account
Shopping Cart

Marine Products International 400-4003 4" x 10' White Vinyl Bilge Vent Blower Hose

Manufacturer

Marine Products International

<p>For over four decades, Marine Products International has been a trusted name in the watersports industry, delivering high-quality equipment and boat accessories to enthusiasts across the nation. Founded in 1981 and based in Salt Lake City, Utah, this premier supplier has built a reputation for excellence by combining deep industry expertise with an unwavering commitment to customer satisfaction.</p><h3>A Legacy of Watersports Excellence</h3><p>What sets Marine Products International apart is their comprehensive understanding of what watersports enthusiasts need to make the most of their time on the water. Whether you're a seasoned wakeboarder carving up the wake, a beginner learning to water ski, or a family looking to outfit your boat with essential safety gear, this brand has spent decades curating a product lineup that addresses every skill level and interest.</p><h3>Comprehensive Product Range</h3><p>Marine Products International specializes in a diverse array of watersports equipment designed to enhance your on-water experience. Their inventory spans everything from performance wakeboards and precision water skis to innovative wakesurf boards that bring the surfing experience to inland waters. Beyond the boards and skis, they offer critical safety equipment including properly-fitted life vests that meet or exceed safety standards, ensuring that fun on the water never comes at the expense of protection.</p><h3>Quality Boat Accessories and Parts</h3><p>Recognizing that a great day on the water depends on a well-equipped vessel, Marine Products International also provides an extensive selection of boat parts and accessories. From maintenance essentials to performance upgrades, their boat component offerings help keep watercraft running smoothly and efficiently. This holistic approach—supporting both the athletes and their boats—demonstrates the brand's comprehensive understanding of the watersports lifestyle.</p><h3>Commitment to Service</h3><p>Marine Products International distinguishes itself not only through product quality but also through accessibility and customer support. Their dedication to serving the watersports community extends beyond traditional business hours, ensuring that customers can get the guidance and information they need when planning their next adventure or addressing equipment needs.</p><p>With more than 40 years of industry experience, Marine Products International continues to be a go-to resource for watersports enthusiasts seeking reliable equipment, knowledgeable service, and the gear that transforms ordinary days into unforgettable experiences on the water.</p>

Part Number

400-4003
06/23/2036 12:19 PM
Sale Price

$17.63

In Stock (10+)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Marine Products International (MPI) 400-4003 is a 4-inch diameter, 10-foot length white vinyl vent hose designed for marine bilge ventilation systems. Part of MPI's 400 Series, this blower ducting hose is built to safely route bilge gases and fumes away from enclosed boat engine compartments.

Key Features:

  • 4" Inside Diameter — 4" I.D. (101.6mm) / 4-1/8" O.D. (104.8mm) for compatibility with standard marine blowers and fittings
  • 10-Foot Length — Provides ample run length for most bilge blower installations
  • Wire-Reinforced PVC Construction — Flexible vinyl hose supported by an anodized wire helix for shape retention and crush resistance
  • 3.5 mil wall thickness with .034" wire thickness for durable, long-lasting performance
  • UV, Ozone & Weather Resistant — Withstands harsh marine environments and prolonged sun exposure
  • Flame-Retardant — Will not support a flame, meeting critical marine safety requirements
  • White Color — Standard white finish for the 400 Series

The MPI 400-4003 vent hose is a trusted OEM-style replacement widely used by boat builders and marine technicians. It is compatible with standard 4-inch in-line bilge blowers and connects easily with common marine hose clamps and fittings.

So far so good

Found part quickly. Price was competitive.

Using Amazon to check out is great!

best price

Quick and efficient

Good seller

Quick and easy

Great web site!

Fast. Quality . Low price

So far so good painless and good price, no it's a great price.

Great price and shipping. Just now placed another order because I can rely on them to get my parts to me quick.

Quick and easy to navigate

Great Pricing (lowest i can find anywhere) and Quick Shipping, Product has no damage from shipping! Thank you Autoplicity!

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy