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EMP EMP Water Pump Case #46-46425 $54.89 $65.86
EMP 46-46425 Water Pump BaseEMP Water Pump Case #46-46425Normalized SKU: 4646425UPC Code: 840080489377
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EMP EMP Water Pump Case #46-46424 $73.34 $88.00
EMP 46-46424 Water Pump BaseEMP Water Pump Case #46-46424Normalized SKU: 4646424UPC Code: 840080489353
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EMP EMP Water Pump Cover #46-09930 $5.08 $5.98
EMP 46-09930 Water Pump BaseThis product replaces:840080492995, 338893Normalized SKU: 4609930UPC Code: 840080492995
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EMP EMP Pump Base #46-01843 $28.66 $34.21
EMP 46-01843 Water Pump BaseThis product replaces:840080437422Normalized SKU: 4601843UPC Code: 840080437422
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EMP EMP Pump Base #46-01112 $37.18 $44.38
EMP 46-01112 Water Pump BaseThis product replaces:840080489186Normalized SKU: 4601112UPC Code: 840080489186
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EMP EMP Water Pump Base #46-01110 $32.07 $38.28
EMP 46-01110 Water Pump BaseThis product replaces:840080429793, 46-77516A, 1Normalized SKU: 4601110UPC Code: 840080429793
NEW ARRIVAL -17% sale
EMP Qualifies for Free Shipping EMP Water Pump Base Mercury/Mariner V6 150-225 HP #46-00051
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EMP EMP Water Pump Base Mercury/Mariner V6 150-225 HP #46-00051 $40.49 $48.58
EMP 46-00051 Water Pump Base This water pump base is a direct replacement for Mercury OEM part 96146A6, built for Mercury and Mariner V6 150-225 HP outboards from 1976 through 1988. The base is the foundation of the water pump assembly, bolting to the gear housing and providing the sealing surface and mounting platform for the pump components above it. A cracked or warped base is a reliable source of cooling water leaks at the lower unit, and it's a part worth inspecting any time the pump is apart. If you're doing a water pump rebuild on one of these V6 engines and the base shows cracks, erosion, or a damaged sealing surface, this is the replacement to reach for. It installs in the same location as the original with no modifications needed. Compatible Applications: Mercury/Mariner V6, 150-225 HP (1976-1988) Replaces OEM Part Number: Mercury 96146A6 Also Crosses With: Sierra: 18-3416 GLM: 12350 Mallory: 9-43305 Normalized SKU: 4600051UPC Code: 840080491905
NEW ARRIVAL -8% sale
EMP Qualifies for Free Shipping EMP Water Pump Base Mercruiser 2.5/3.0/4.5L #46-00049
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EMP EMP Water Pump Base Mercruiser 2.5/3.0/4.5L #46-00049 $35.19 $37.91
EMP 46-00049 Water Pump Base This water pump base is built for early MerCruiser inboard/outboard applications, specifically the 2.5L and 3.0L 4-cylinder 120-140 hp engines and the 4.5L V6 160 hp MC-1 Drive units from 1967 through 1969. It fits gear housings with a flush, screw-in design, so make sure your housing matches that configuration before ordering. It's a direct replacement for Mercury OEM part 48748A1. The base forms the foundation of the water pump assembly, sealing against the gear housing and providing the mounting surface for the pump components above it. Getting this piece right matters for keeping your cooling system sealed and flowing properly. Compatible Applications:MerCruiser 2.5L-3.0L, 4-cyl, 120-140 hp (1967-1969)MerCruiser 4.5L V6, 160 HP MC-1 Drive (1967-1969)Requires flush, screw-in gear housing Replaces OEM Part Number: Mercury 48748A1 Also Crosses With:Sierra: 18-3421GLM: 12330Mallory: 9-43309 Normalized SKU: 4600049UPC Code: 840080442068
-17% sale
Sierra Not Qualified for Free Shipping Sierra Outer Plate Water Pump Base #18-3521
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Sierra Sierra Outer Plate Water Pump Base #18-3521 $9.25 $11.04
Sierra 18-3521 Water Pump Base Outer Plate Water Pump Base Normalized SKU: 183521UPC Code: 808282291662
Sold out -17% sale
Sierra Not Qualified for Free Shipping Sierra Outer Plate Water Pump Base #18-3520
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Sierra Sierra Outer Plate Water Pump Base #18-3520 $10.77 $12.86
Sierra 18-3520 Water Pump BaseSierra Outer Plate Water Pump Base #18-3520Normalized SKU: 183520UPC Code: 808282291655
Sold out -17% sale
Sierra Not Qualified for Free Shipping Sierra Water Pump Base Seal #18-8310
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Sierra Sierra Water Pump Base Seal #18-8310 $10.88 $12.99
Sierra 18-8310 Water Pump BaseWater Pump Base SealOEM Interchange:MERCURY MARINE: 26-30900Sierra Water Pump Base Seal #18-8310Normalized SKU: 188310UPC Code: 808282234539
-17% sale
Sierra Not Qualified for Free Shipping Sierra Water Pump Base #18-3445
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Sierra Sierra Water Pump Base #18-3445 $68.72 $82.46
Sierra 18-3445 Water Pump BaseWater Pump BaseOEM Interchange:MERCURY MARINE: 46-812966A7Sierra Water Pump Base #18-3445Normalized SKU: 183445UPC Code: 808282111922
Sold out -17% sale
Sierra Not Qualified for Free Shipping Sierra Water Pump Base #18-3423
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Sierra Sierra Water Pump Base #18-3423 $39.06 $46.87
Sierra 18-3423 Water Pump BaseWater Pump BaseOEM Interchange:MERCURY MARINE: 46-73640A1Sierra Water Pump Base #18-3423Normalized SKU: 183423UPC Code: 030999315953
-17% sale
Sierra Not Qualified for Free Shipping Sierra Water Pump Base #18-3424
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Sierra Sierra Water Pump Base #18-3424 $45.14 $54.16
Sierra 18-3424 Water Pump BaseWater Pump BaseOEM Interchange:MERCURY MARINE: 46-77177A1Sierra Water Pump Base #18-3424Normalized SKU: 183424UPC Code: 808282230449
Sold out -17% sale
Sierra Not Qualified for Free Shipping Sierra Water Pump Base #18-3422
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Sierra Sierra Water Pump Base #18-3422 $38.53 $45.99
Sierra 18-3422 Water Pump BaseWater Pump BaseOEM Interchange:MERCURY MARINE: 46-77516A1Sierra Water Pump Base #18-3422Normalized SKU: 183422UPC Code: 030999315946
-17% sale
Sierra Not Qualified for Free Shipping Sierra Water Pump Base #18-3416
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Sierra Sierra Water Pump Base #18-3416 $47.28 $56.74
Sierra 18-3416 Water Pump BaseWater Pump BaseOEM Interchange:MERCURY MARINE: 46-96146A6Sierra Water Pump Base #18-3416Normalized SKU: 183416UPC Code: 030999315892
-17% sale
Sierra Not Qualified for Free Shipping Sierra Water Pump Base #18-3420
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Sierra Sierra Water Pump Base #18-3420 $38.35 $45.77
Sierra 18-3420 Water Pump BaseWater Pump BaseOEM Interchange:MERCURY MARINE: 46-44292A3Sierra Water Pump Base #18-3420Normalized SKU: 183420UPC Code: 030999315922
-17% sale
Sierra Not Qualified for Free Shipping Sierra Water Pump Base #18-3419
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Sierra Sierra Water Pump Base #18-3419 $31.42 $37.50
Sierra 18-3419 Water Pump BaseWater Pump BaseOEM Interchange:MERCURY MARINE: 46-42579A3Sierra Water Pump Base #18-3419Normalized SKU: 183419UPC Code: 030999315915
-17% sale
Sierra Not Qualified for Free Shipping Sierra Water Pump Base #18-3417
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Sierra Sierra Water Pump Base #18-3417 $38.07 $45.44
Sierra 18-3417 Water Pump BaseWater Pump BaseOEM Interchange:MERCURY MARINE: 46-57234A1Sierra Water Pump Base #18-3417Normalized SKU: 183417UPC Code: 030999315908
Sold out -17% sale
Sierra Not Qualified for Free Shipping Sierra Water Pump Base #18-3421
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Sierra Sierra Water Pump Base #18-3421 $36.22 $43.23
Sierra 18-3421 Water Pump BaseWater Pump BaseOEM Interchange:MERCURY MARINE: 46-48748A1Sierra Water Pump Base #18-3421Normalized SKU: 183421UPC Code: 030999315939

Frequently Asked Questions

First Choice Marine is an online marine retailer carrying a diverse line of marine parts and accessories and related items from industry-respected and demanded manufacturers and suppliers. Through our diverse distributor network, we are able to access over 150,000 items, including our current site inventory, new products being added, and special order items. If you need it on your boat... we are your one-stop shop!

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