Flushing Attachments; Sterndrive Water Pickups - MerCruiser Sterndrive 4.3L TKS Owner's Manual

Section 5 - Maintenance
IMPORTANT: Bravo models equipped with closed cooling require dual water pickups and
must be equipped with a through the hull or through the transom pickup in addition to the
sterndrive water inlets.
IMPORTANT: Alpha engines with the sterndrive water inlet blocked off at the gimbal
housing, and using a through the hull water inlet, need a supply of cooling water available
to both the sterndrive unit and to the engine during operation

Flushing Attachments

Flushing Device
Dual Water Pick‑up Flush Gearcase Seal Kit

Sterndrive Water Pickups

There are two types of water pickups available on Mercury MerCruiser sterndrives: dual
water, and side pickups. Dual water pickups require the flushing attachment (44357Q 2)
and the flush seal kit (881150K 1), and side pickups require the flushing attachment
(44357Q 2).
Dual Water Pickup
NOTE: Flushing is needed only for salty, brackish, mineral laden or polluted water
applications. Flushing is recommended after each outing for best results.
Page 82
Attaches to the water intakes; provides a fresh water
connection when flushing the cooling system or operating the
engine.
9192
Blocks off the front water inlet holes on the dual water inlet
gearcases.
9194
5752
91‑44357Q 2
91‑881150K 1
5773
Side Pickup
90-860171061 DECEMBER 2006