Description
Sierra 18-7798 Fuel Pump Diaphragm Kit
Sierra replacement Fuel Pump Diaphragm Kit. Sierra Marine engine parts are designed to meet or exceed OEM requirements.Kit Contains:
- (1) 18-7838 Fuel Pump Diaphragm
- Replaces Mercury 84265M
- Replaces Yamaha 677-24471-01-00
- (1) 18-7837 Fuel Pump Diaphragm
- Replaces Mercury 84262M
- Replaces Yamaha 677-24411-01-00
- Replaces Yamaha 677-24411-02-00
California Residents: WARNINGCancer and Reproductive Harm – P65Warnings.ca.gov


![Whitecap Teak Lumber – 1/2″ x 1-3/4″ x 72″[60813]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/whitecap-teak-lumber-1-2-x-1-3-4-x-72-60813.webp)

![Ocean Signal RescueME EDF1 Electronic Distress Flare – 7 Mile Range[750S-01710]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/ocean-signal-rescueme-edf1-electronic-distress-flare-7-mile-range-750s-01710.webp)

![GROCO 1-1/4″ Bronze Electric Flanged Seacock – 12V [FBVE-1250 12V]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/groco-1-1-4-bronze-electric-flanged-seacock-12v-fbve-1250-12v.webp)

![Blue Sea 1455 4 Position Switch CLB Square[1455]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/blue-sea-1455-4-position-switch-clb-square-1455.webp)
![Xantrex C-Series Solar Charge Controller – 40 Amps [C40]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/xantrex-c-series-solar-charge-controller-40-amps-c40.webp)