My Account
Shopping Cart

Sierra 18-7843 Fuel Pump Diaphragm for Yamaha Outboard Engines

Manufacturer

Part Number

18-7843
Sale Price

$15.54

In Stock (5)

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 Sierra 18-7843 is a replacement fuel pump diaphragm engineered for Yamaha 2-stroke outboard engines. This diaphragm is a direct aftermarket replacement for Yamaha OEM part numbers 6E5-24411-00-00, 6E5-24411-01-00, and 6E5-24411-10-00, and is used in conjunction with the Sierra 18-7788 Fuel Pump Kit and the Sierra 18-7349 Fuel Pump.

The fuel pump diaphragm is a critical component of the mechanical fuel lift pump system. As the diaphragm flexes, it creates the pressure differential needed to draw fuel from the tank and deliver it consistently to the engine. A worn or cracked diaphragm can result in reduced fuel pressure and poor engine performance, making timely replacement essential for reliable operation.

Key Features:

  • Replaces Yamaha OEM part numbers: 6E5-24411-00-00, 6E5-24411-01-00, 6E5-24411-10-00
  • Meets or exceeds original equipment specifications
  • Compatible with Yamaha 2-stroke outboard engines ranging from 100 HP to 300 HP (approximately 1984–2006)
  • Designed for use with Sierra 18-7788 Fuel Pump Kit and Sierra 18-7349 Fuel Pump
  • Also cross-references Mallory 9-35327 (as part of the 18-7788 kit)

Sierra International is a trusted manufacturer of marine engine replacement parts, and each Sierra product is built to meet or exceed the performance of the original equipment part it replaces. This diaphragm is also sold as part of the Sierra 18-7799 Fuel Pump Diaphragm Kit, which includes both the 18-7842 and 18-7843 diaphragms.

Good

great price no hassle checkout, fast delivery

Good

Order was easy on line with great payment options. Called to inquire about order the next day and got immediate response. Item was shipped within 36 hours of order.

easy transaction with amazon!

You have an user friendly interface and well displayed, most important information about the product. I also appreciate technical information to make sure that I buy right product. I had a very good experience.

Pretty easy forward

Ordered my Cargo Liner on Tuesday got it in Saturday. Best price I could find on the Net, Fast delivery and great communications..will definitely buy from these guys again ****

Product was the cheapest I could find. One other store was cheaper but did not have my product in stock. Autoplicity shipped within 2 days and the product arrived as described. I am happy with my purchase and would do business with Autoplicity again. The only thing I marked them on was that I wish they shipped within 1 day instead of 2.

Easy to find and to pay with amazon.

Extremly fast shipping - Ordered and shipped in less than 12 hours. Cheapest prices I could find after thorough searching. They beat the guys with free shipping.

quick and express-like. maybe too expressy

easy to find and good prices

Autoplicity was a great place to shop. By far the lowest price on the rack that I purchased. Fast shipping and overall very satisfied.<br><br>

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