SeaKnots

The Seawater pump (part # 129271-42500) for the Yanmar 4JH engine costs approx. $750.

The Seawater pump (part #129670-42512) for the Yanmar 3JH engine costs approx $260.

All parts on these two parts are interchangeable except 2 - the drive gear, and the discharge hose connection.

You can turn the 3JH pump into a 4JH pump by either moving the drive gear and outlet connection from your old 4JH pump to the 3JH pump, or by purchasing a new gear (part #128271-42700 for $132), and a straight discharge connection (part #X01357681 for $22), and putting those on the 3JH pump.

Either way you have a seawater pump for the 4JH engine at half or less of the cost. Hope this will help some or you guys/gals.

Post this information on any site you can. I have put it on "Cruising & Sailing Forums".

Owning a boat is expensive enough without getting ripped off on parts.

Views: 334

Reply to This

Latest Activity

Cliyerlye posted photos
Aug 30
johnyosin updated their profile
Aug 29
Profile Iconpattem digital, Hagenman, johnyosin and 6 more joined SeaKnots
Aug 28
Cliyerlye posted a photo

Poe 2 Currency

Path of Exile 2 orbs offer several key advantages for players looking to advance through its numerous quests. Understanding how best to utilize them will allow for successful progression through Path of Exile's many quests and upgrades. Click here…
Aug 28
Cliyerlye posted photos
Aug 23
Cliyerlye posted photos
Aug 22
Cliyerlye posted a photo

BF6 No Recoil

Upgrade your aim with improve your accuracy with BF6 No Recoil solution that is designed to ensure flawless shooting with Battlefield 6. You may require either the BF6 Logitech Script or the BF6 Razer Macro We offer recoil-free accuracy to every…
Aug 19
Cliyerlye posted a photo

USASexGuide

USASexGuide.us.com is a reliable resource for honest, authentic adult reviews throughout the USA. Visit forums filled with authentic observations, intimate discussions as well as local insight. When you look up USA Sex Guide or USAsexguide and…
Aug 15
ADVERTISE ON SEAKNOTS CONTACT US AT: 
candrac@sailforwater.com

© 2025   Created by CAN DRAC.   Powered by

Badges  |  Report an Issue  |  Terms of Service