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Horsepower Year Sierra Impeller Plate Mallory Impeller Plate Sierra Plate & Cup Mallory Plate & Cup Sierra Cup Mallory Cup
5.5 1954-1964 18-3102          
6 1952-1978 18-3102          
7.5 1954-1958 18-3102          
9.5 1964-1973 18-3102          
10 1958-1963 18-3102          
10 1949-1957 18-3103          
9.9/15 1974-Up 18-3178 9-43404     18-3179 9-43525
9.9/15 (4-Stroke) 1995-Up 18-3178 9-43404     18-3179 9-43525
20 1982-1984         18-3358 9-43504
20 1985-Up 18-3359 9-43405     18-3358 9-43504
25 1969-1978 18-3103          
25 1979-1984         18-3358 9-43504
25 1985-Up 18-3359 9-43405     18-3358 9-43504
28 1978-Up         18-3358 9-43504
30 1984-Up 18-3359 9-43405     18-3358 9-43504
35 1980-1982 N/A       18-3358 9-43504
35 1983-Up 18-3359 9-43405     18-3358 9-43504
40 Comm. 1981-1990 18-3352          
40 1984-1985 18-3343 9-43403        
40 1986-1988 18-3343 9-43403        
45/55 1989 18-3343 9-43403        
48 1987-1988 18-3343 9-43403        
48 1989-1996 18-3127          
50 1971-1978 18-3343 9-43403        
50 1979-1985 18-3343 9-43403        
50 1986-1988 18-3343 9-43403        
55 1979-1985 18-3343 9-43403        
60 1986-1994 18-3127          
60 1995-Up 18-3127          
65 Comm. 1984-1994 18-3127          
65 Comm. 1995-Up 18-3127          
70 1974-1978 18-3127          
70 1979-1994 18-3127          
70 1995-Up 18-3127          
75 1974-1978 18-3127          
75 1979-1988 18-3127          
85 1969-1972 18-3182 9-43508        
85 1973-1977 18-3182 9-43508        
85 1978     18-3346 9-43505    
85 1979-1995     18-3346 9-43505    
90 1979-Up     18-3346 9-43505    
90 SL,DI 1995 & UP     18-3346 9-43505    
100 1979-Up     18-3346 9-43505    
100 Comm. 1984-Up     18-3346 9-43505    
105 Comm. 1998-2001     18-3346 9-43505    
115 1977-1978     18-3346 9-43505    
115 1979-Up     18-3346 9-43505    
115 SL,DL 1995 & UP     18-3346 9-43505    
120 25" 1993-2000     18-3346 9-43505    
125 ESX 25" 1993-1994     18-3346 9-43505    
125 ESX 25" 1994-1995     18-3346 9-43505    
125 ESX 25" 1993-1994     18-3346 9-43505    
130 1997 & UP     18-3346 9-43505    
130 25" 1994-2000     18-3346 9-43505    
135 25" 2001     18-3346 9-43505    
140 1977-1978     18-3346 9-43505    
140 1979-Up     18-3346 9-43505    
140 25" 1993     18-3346 9-43505    
140 25" 1994-2000     18-3346 9-43505    
150 1976-1978     18-3346 9-43505    
150 1979-Up     18-3346 9-43505    
150 20" 1993 & UP     18-3346 9-43505    
150 SL 20" 1994-98     18-3346 9-43505    
150 EL 20" 1996-1998     18-3346 9-43505    
150 25" 1993 & UP     18-3346 9-43505    
150 DI 1997 & UP -
[out of stock]
  18-3346 9-43505    
150 2000 & UP     18-3346 9-43505    
175 1976-1978     18-3346 9-43505    
175 SL 20" 1994-1998     18-3346 9-43505    
175 EL 20" 1996-1998     18-3346 9-43505    
175 25" 1993 & UP     18-3346 9-43505    
175 DI 1997 & UP     18-3346 9-43505    
175 2000 & UP     18-3346 9-43505    
200 1976-1978     18-3346 9-43505    
200 Comm. 1990     18-3346 9-43505    
200 25" & 30" 1993-1997     18-3346 9-43505    
225 20" 1993 & UP     18-3346 9-43505    
225 25" & 30" 1993-1997     18-3346 9-43505    
235 1978     18-3346 9-43505    
235 1979-Up     18-3346 9-43505    
V4 Cross 20" & 25" 1993 & UP     18-3346 9-43505    
V4 Loop 20" 1993 & UP     18-3346 9-43505    
V4,V6,V8 1982-1994     18-3346 9-43505    
V6,V8 20" 1993 & UP     18-3346 9-43505    
V6 & V8 25" & 30" 1993 & UP     18-3346 9-43505    
Sea Drives 1979-Up     18-3346 9-43505    
Horsepower Year Sierra Impeller Plate Mallory Impeller Plate Sierra Plate & Cup Mallory Plate & Cup Sierra Cup Mallory Cup

$8.99 - Sierra 18-3179 Water Pump Cup
Compare at $9.99
Part # 18-3179
$11.99 - Sierra 18-3346 Cup And Plate Assembly
Compare at $13.99
Part # 18-3346
$10.99 - Sierra 18-3358 Water Pump Cup
Compare at $12.49
Part # 18-3358
$8.99 - Sierra 18-3455 Insert Cup
Compare at $9.69
Part # 18-3455
$8.99 - Mallory Water Pump Cup 9-43525
Compare at $9.54
Part # 9-43525
$11.99 - Mallory Cup & Plate Assembly 9-43505
Compare at $13.44
Part # 9-43505
$9.99 - Mallory Cup, Water pump 9-43504
Compare at $11.49
Part # 9-43504
$9.99 - Mallory Cup, Water pump 9-43503
Compare at $11.30
Part # 9-43503
Sierra
Johnson Water Pump Cup 18-3179 Water Pump Cup
Sierra 18-3179 Water Pump Cup
Replaces OEM part #
  • OMC 324097


Evinrude Gearcase Exploded View 18-3346 Cup And Plate Assembly
Sierra 18-3346 Cup And Plate Assembly
Replaces OEM part #
  • OMC 435027


Evinrude Gearcase Exploded View 18-3358 Water Pump Cup
Sierra 18-3358 Water Pump Cup
Replaces OEM part #
  • OMC 328751


Johnson Water Pump Cup 18-3455 Insert Cup
Sierra 18-3455 Insert Cup
Replaces OEM part #
  • OMC 340619
For: Johnson/Evinrude 40, 50, 25 Jet, 30 Jet 1995-Up, E-Tec 40/50/60 HP All

johnson water pump cup-mallory water pump cup 9-43525
Mallory Water Pump Cup 9-43525
Replaces Original Equipment Manufacturer(OEM):Johnson/Evinrude
Replaces Original Equipment Manufacturer # (OEM #):324097
Fits Application:9.9/15

johnson water pump cup-mallory cup & plate assembly 9-43505
Mallory Cup & Plate Assembly 9-43505
Replaces Original Equipment Manufacturer(OEM):Johnson/Evinrude
Replaces Original Equipment Manufacturer # (OEM #):435027
Fits Application:85 hp - V6

johnson water pump cup-mallory cup, water pump 9-43504
Mallory Cup, Water pump 9-43504
Replaces Original Equipment Manufacturer(OEM):Johnson/Evinrude
Replaces Original Equipment Manufacturer # (OEM #):328751
Fits Application:25-35 hp

johnson water pump cup-mallory cup, water pump 9-43503
Mallory Cup, Water pump 9-43503
Replaces Original Equipment Manufacturer(OEM):Johnson/Evinrude
Replaces Original Equipment Manufacturer # (OEM #):338486
Fits Application:V-4, V-6

This product typically leaves our warehouse in 1 business day.

To determine the shipping cost and estimated delivery date for this item click Add to Cart, then click Calculate Shipping inside your shopping cart.

General Policy

We work hard to provide you with the best value in product prices and shipping charges, and to get your order to you in a timely, safe, and convenient manner. Internet sales involve the cost of getting the product to you, and shipping carriers base that cost on the size and weight of the package, plus the distance the package travels from our warehouse to your door. We keep our product prices low, negotiate low shipping charges from our carriers and pass those savings on to you, and we don't charge sales tax (except for residents of Utah), so your order from iboats.com is the best value for all your boating needs.

Our standard shipping method is UPS ground, which typically takes 2-5 additional transit days after the order has left our warehouse, depending on your delivery address. We also offer other shipping options, including expedited delivery, and the actual delivery date will depend on the shipping options you choose.

Shipping to Canada

Most products sold by iboats.com can be purchased and shipped to Canada. Some restrictions apply to certain items, such as hazardous materials, over-weight products, and the method of shipping. Available product lines, shipping rates and fees may vary depending on the delivery address for your order.

Currently, iboats.com offers ground shipping to all Canada provinces. Our Canadian brokerage service accelerates your orders through the Customs clearance process and facilitates the delivery of your order through Canada Post or the best method based on your shipping address. We do not currently offer expedited shipping methods to Canada.

At iboats.com we want to simplify your transaction and give you a pleasing purchasing experience so you'll come shop with us again and again. We therefore calculate all the duties, taxes, and other fees specific to Canadian orders and show you the total landed cost of getting the order to your door. There are no hidden fees and will be no surprise COD charges when the package is delivered to you.

Order History & Tracking

We provide several methods to track your order and keep you informed of your order status and expected delivery date. After completing an iboats.com purchase transaction, an account will automatically be created for your provided email address. You'll receive an email from iboats.com Customer Service informing you of your new User Account and the many benefits it provides. If you don't wish to have an iboats.com Account with password, do nothing and your account won't be registered; however, you can respond to the instructions in the email and easily register your account and setup a password. This will allow you to sign in to your account by choosing the Order Status link from any iboats.com page, where you can browse your order history and track the status of all your orders - tracking numbers are displayed that link to the delivery carrier's tracking webpage.

If you have provided your email address during checkout, we will also email you your invoice, which includes a link for tracking your order and viewing the current status of your order. Refer to your invoice email and tracking link any time you wish to track the status of your order

Friendly Return Policy

  • If the merchandise you received was defective, damaged, or an error was made by iboats.com, simply return the merchandise within 30 days of the original shipping date for a full refund.
  • See the specific requirements and instructions below for United States or Canadian orders.

Returns for U.S. Customers

We want to make it as easy as possible for you to return an unwanted item; after all, we want you to return again and again as a satisfied iboats.com customer, and to also continue recommending us to your friends.

As mentioned above, if the merchandise you received was defective, damaged, or an error was made by iboats.com, simply return the merchandise within 30 days of the original shipping date for a full refund. Merchandise must still be in brand-new, unused condition with all original packaging in good condition; plus parts, accessories, manuals, and/or warranty cards included. Please note that all return merchandise must be accompanied by an RA (Return Authorization) number issued by iboats.com. To receive your RA number simply call our Returns Department toll-free at 1-800-914-1123 or email us at returns@iboats.com.

If for some reason you need to return merchandise for reasons other than those mentioned above, follow the same procedures, obtaining an RA number from iboats.com, within 30 days of the original shipping date. Please note that there may be restocking fees, shipping costs, or product change order costs associated with some returns. Feel free to check with the iboats.com Returns Department for specific terms, conditions, and eligibility.

Returns for Canadian Customers

We request that all Canadian customers verify and re-check that the products you are ordering are what you want and are correct for your application or intended use. iboats.com does not accept any return merchandise on Canadian orders, unless the merchandise you received was defective, damaged, or an error was made by iboats.com. In such cases, return the merchandise within 30 days of the original shipping date for a full refund, following the procedures below.

Canadian orders involve many additional costs dealing with Customs, Provincial taxes, brokerage fees, and more, making product returns complicated and very expensive and costly for both the customer and iboats.com. Again, help us serve you best by verifying that the products you are ordering are what you want so we don't have any costly returns or have to deny a return.

If a return meets the criteria mentioned above, merchandise must still be in brand-new, unused condition with all original packaging in good condition; all parts, accessories, manuals, and/or warranty cards included. Please note that all return merchandise must be accompanied by an RA (Return Authorization) number issued by iboats.com. To receive your RA number call our Customer Service Department toll-free at 1-800-914-1123, Tuesday-Friday, 10am-7pm EST, or email us at returns@iboats.com. We will provide further details on where and how to mail the merchandise. Please note that returns sent from rural Canadian addresses may take up to five weeks to process after the package is mailed.

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