Mercruiser Water Pump Bases

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Sierra Water Pump Base

Mallory Water Pump Base

#1 Units with plastic flush screw in gear housing 2495186-2763441 18-3421 9-43309
#1 Units (Except MR-ALPHA) w/o flush screw in gear housing 2763442-6854392 18-3417 9-43306
MR/ALPHA I 6854393-D594568 18-3420 9-43308
Your Price: $24.40
Save: $10.31
(29% Off $34.71)
Part # 18-3417 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 3 hrs 39 mins.
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Replaces OEM part #
  • MERCURY MARINE 46-57234A1
Your Price: $23.14
Save: $7.70
(24% Off $30.84)
Part # 18-3420 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 3 hrs 39 mins.
Replaces OEM part #
  • MERCURY MARINE 46-44292A3
Your Price: $33.92
Save: $12.05
(26% Off $45.97)
Part # 18-3421 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 3 hrs 39 mins.
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Replaces OEM part #
  • MERCURY MARINE 46-48748A1
Your Price: $23.99 (Out of stock)
Save: $16.14
(40% Off $40.13)
Part # 9-43309 ValueShip™ Eligible
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):46-48748A1
Fits Application:Mercruiser units w/ flush plug
Sierra
Average Customer Review for Water Pump Base - 18-3420 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull Star1988 Mercruiser 3.0 L
by Dawn from Union Gap, Washington on June 15, 2013
Works great!
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