CORE REQUIRED: YES (within 21 days). The pump will come with a USPS priority shipping label to ship your old pump back. Ship it back in the same box. I am trusting you to send your old pump back and I pay for the return label up front. When payment is made you'll receive an email asking you to confirm you have a core to exchange or you can add a message to seller when you checkout stating "I have a good core". (A good core needs to be complete and without physical damage and extreme corrosion. If a failed attempt to rebuild the pump was made please let me know If you don't have an old pump to exchange please contact me prior to purchase.)
This is a Rebuilt OEM Sherwood G9901 raw water / sea water pump that was used on a wide range of Volvo Penta and OMC V6 and V8 engines including 4.3L, 5.0L, 5.7L, 5.8L, 7.4L and 8.2L. In can be used in place of Volvo Penta #3858847. The pump comes with the impeller pre-lubed and ready to install. If you have any fitment questions or need a pump for another model please send me a message. The pump has a 6.5" pulley and this Sherwood pump is a good alternative to the Volvo Penta pump since it is easily serviceable and rebuildable.
Part Number: G9901 (use as 3858847)
Superseded Part Numbers: 3852398, 3855778, 3851623
Symptoms of a bad raw water pump: Pump may leak water out of the weep hole, growling or howling sound from bad bearing, engine overheats or high exhaust temperature due to low output.
What is a good core? The main components of the pump are the Pulley, Bearing Housing and the Impeller Housing. I'm not picky when it comes to the overall condition of the core, however, do not send me back a pump that is known to be bad. Signs of a non-rebuildable core are 1) a cracked pulley 2) a bearing that pulls right off the pulley shaft 3) physical damage from someone trying to rebuild it. 4) Extreme salt water & rust from a pump that has been sitting and rusting for years. Other than those all other cores are fine. If you have questions just let me know.
Rebuild Service: I also offer a service to rebuild your existing raw water pumps. Please review my other listings to see this service or send me a message. It is a flat rate repair and the following parts are replaced; Bearing, Seal, O-ring, Impeller, Retainer Ring & Bolts. Here is a list of some of the other Volvo Penta Part numbers for the following engines. (3.0L, 4.3L, 5.0L, 5.7L, 8.1L) 21214599, 3857202, 3862482, 3812693, 21212799, 3812519, 21214596, 3862487, 3812697, 21255090, 3812520, 21214601, 3860795, 3862484, 3812695, 21212800, 3812518, 21214595, 3862485, 3812696, 21212798, 3812522