Fuel Pump Assembly for Mercury/Mariner 9.9-30HP 4-Stroke Models (803529T04)

OEM Part Numbers 803529T04 Compatible Models Mercury/Mariner Four-Stroke Engines: 10 HP Carbureted 2-Cylinder 15 HP Carbureted 2-Cylinder...
Vendor: JLM Marine
Availability: In Stock
Product Type: Fuel Pump
$51.50
$72.00
$51.50
Subtotal: $51.50
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JLM MARINE

Fuel Pump Assembly for Mercury/Mariner 9.9-30HP 4-Stroke Models (803529T04)

$72.00 $51.50

Fuel Pump Assembly for Mercury/Mariner 9.9-30HP 4-Stroke Models (803529T04)

$72.00 $51.50

OEM Part Numbers

803529T04

Compatible Models

  • Mercury/Mariner
    • Four-Stroke Engines:
      • 10 HP Carbureted 2-Cylinder
      • 15 HP Carbureted 2-Cylinder (includes Seapro)
      • 20 HP Carbureted 2-Cylinder
      • 25 HP EFI 3-Cylinder (includes 25 JET EFI & SEAPRO)
      • 30 HP EFI 3-Cylinder

Explosion Diagram

Fuel Pump And Lines Mechanical

Technical Specifications

  • Weight: 251g
  • Package Dimensions: 12x10x8.5 inches

Package Contents

  • Fuel Pump Assembly
  • Hose Clamp: 8M0129429 (9x1mm)
  • O-Ring: 16109003 (3x30mm OD) - Quantity: 2

Installation Instructions

  1. Ensure the engine is turned off and has cooled down completely.
  2. Relieve any pressure in the fuel system.
  3. Disconnect the battery to prevent accidental ignition.
  4. Remove the existing fuel pump assembly carefully.
  5. Install the new fuel pump assembly, ensuring all connections are secure and aligned.
  6. Reconnect the battery and pressurize the fuel system.
  7. Start the engine and inspect for proper operation and leaks.

Important Notes

  • Verify product images/specifications match your original part before purchase.
  • This is an aftermarket replacement part, not an OEM component.
  • Professional installation is recommended for safety and performance.

We can ship to virtually any address in the world with free shipping available for most regions.

For our typical US and Canadian customers , our shipping timeframes are as follows:

  • Amazon FBA: orders will be delivered within 1-5 business days after placing the order (during certain special periods such as major promotions, Christmas, etc., the delivery time of Amazon FBA may be affected).
  • US warehouse shipment: orders will be delivered within 7 days after placing the order.
  • China warehouse shipment: orders will be delivered about 12 days after placing the order.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.

As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.

We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.

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