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For everything else boating related.

Wondering
"Where-'n-'Ell"
to get great parts for your outboard?

Right Here!

 

I'm Restoring A 1955 Merc MK55 Sandcast

1955 Mark 55 Sandcast Restoration

 

Meet the MasterTech!

Bill the Master Tech

 

If your Mfgr. says:

That motor's 7 years old.
Part is no longer available.
We lose $$ on service!
EPA made me do it!
Parts at central warehouse, you'll get them next month.
We don't make parts for those.
We only do warranty work.
Our techs only fix late models.
No clue what's wrong! So we'll work time & material.

Baloney!!

Contact
 the Mastertech!

 


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NEW & REBUILT GEARCASES

V-6 2.0L - 2.5L Motors

NEED A GEARCASE FOR A  V6 3.0L MERC? FIND IT HERE
NEED A GEARCASE FOR A  3 or 4 CYLINDER MERC? FIND IT HERE
UNFORTUNATELY, WE HAVE NO SOURCE FOR INLINE 6 GEARCASES

Concerned about your gearcase or water pump? Try our gearcase tips page.

warning symbolNOTE!! You MUST PROVIDE THE SERIAL NUMBER when ordering. I cannot send you the correct parts otherwise!
BE SURE to specify shaft length (measure from top of gearcase to top of driveshaft)
Driveshaft length is measured from the gearcase top to the top of the driveshaft. This length will be 2-3" longer than the one you order, e.g. your driveshaft measures 23" so the lower unit you need is listed as 20"

Please take the time to enter the model and serial number of your motor in the shopping cart at checkout.
Please also supply the folowing information. Thanks!

Length of Driveshaft

NEW and Rebuilt units carry a 1 (one) year warranty. This is a supplier warranty. Most units have core value (included in price). Return shipping for cores is prepaid, if you have a repairable unit. MasterTech will remit the core credit after evaluation by the rebuilder.

ALL SHIPPING CHARGES ARE INCLUDED (Continental US Only)
PLEASE NOTE: OVERSEAS SHIPMENTS (INCLUDING HAWAII, ALASKA, & U.S. TERRITORIES) REQUIRE EXTRA SHIPPING CHARGES.
CORE CHARGES FOR THESE GEARCASES ARE NOT REFUNDABLE AND NO CORE IS REQUIRED. THE PRICE REMAINS THE SAME.
Rebuilt and new gearcases are subject to availability.


MERCURY V-6 2.0L - 2.5L GEARCASES
CYL
 DESCRIPTION CORE PRICE PURCHASE
V-6
 Mercury/Mariner New Lower
135-150 HP 1979-91 20"
2:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 NO CORE
REQUIRED		 ME-G6-03-N
$2,146
V-6
 Mercury/Mariner Rebuilt Lower
135-150 HP 1979-91 20"
2:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 NO CORE
REQUIRED		 ME-G6-03-R
$1,906
V-6
 Mercury/Mariner New Lower
135-150 HP 1979-91 25"
2:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 NO CORE
REQUIRED		 ME-G6-04-N
$2,146
V-6
 Mercury/Mariner Rebuilt Lower
135-150 HP 1979-91 25"
2:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 NO CORE
REQUIRED		 ME-G6-04-R
$1,906
V-6
 Mercury/Mariner New Lower
135-150 HP 1992-2001 20"
2:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 $200 ME-G6-03A-N
$2,046
V-6
 Mercury/Mariner Rebuilt Lower
135-150 HP 1992-2001 20"
2:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 $200 ME-G6-03A-R
$1,906
V-6
 Mercury/Mariner New Lower
135-150 HP 1992-2001 25"
2:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 $200 ME-G6-04A-N
$2,046
V-6
 Mercury/Mariner Rebuilt Lower
135-150 HP 1992-2001 25"
2:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 $200 ME-G6-04A-R
$1,906
CYL
 DESCRIPTION CORE PRICE PURCHASE
V-6
 Mercury/Mariner New Lower
135-150 HP 1985-1991 25"
2:1 Ratio 4-3/4" Hub COUNTER ROTATION
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 NO CORE
REQUIRED		 ME-G6-05-N
$2,326
V-6
 Mercury/Mariner Rebuilt Lower
135-150 HP 1985-1991 25"
2:1 Ratio 4-3/4" Hub COUNTER ROTATION
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 NO CORE
REQUIRED		 ME-G6-05-R
$2,086
V-6
 Mercury/Mariner Rebuilt Lower
135-150 HP 1992-2001 25"
2:1 Ratio 4-3/4" Hub COUNTER ROTATION
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) INCLUDED		 NO CORE
REQUIRED		 ME-G6-05A-R
$2,206
V-6
 Mercury/Mariner New Lower
150-200 HP 1979-1991 2.5L 20"
1.87:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 NO CORE
REQUIRED		 ME-G6-08-N
$2,146
V-6
 Mercury/Mariner Rebuilt Lower
150-200 HP 1979-1991 2.5L 20"
1.87:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 NO CORE
REQUIRED		 ME-G6-08-R
$1,906
V-6
 Mercury/Mariner New Lower
150-200 HP 1979-1991 2.5L 25"
1.87:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 NO CORE
REQUIRED		 ME-G6-09-N
$2,146
V-6
 Mercury/Mariner Rebuilt Lower
150-200 HP 1979-1991 2.5L 25"
1.87:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 NO CORE
REQUIRED		 ME-G6-09-R
$1,906
CYL
 DESCRIPTION CORE PRICE PURCHASE
V-6
 Mercury/Mariner New Lower
150-200 HP 1989-1991 25"
1.87:1 Ratio 4-3/4" Hub COUNTER ROTATION
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 NO CORE
REQUIRED		 ME-G6-10-N
$2,446
V-6
 Mercury/Mariner Rebuilt Lower
150-200 HP 1989-2006 25"
1.87:1 Ratio 4-3/4" Hub COUNTER ROTATION
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) NOT INCLUDED		 NO CORE
REQUIRED		 ME-G6-10-R
$2,086
V-6
 Mercury/Mariner New Lower
150-200 HP 1992-2007 2.5L 20"
1.87:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) INCLUDED		 $200 ME-G6-08A-N
$2,266
V-6
 Mercury/Mariner Rebuilt Lower
150-200 HP 1992-2007 2.5L 20"
1.87:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) INCLUDED		 $200 ME-G6-08A-R
$2,026
V-6
 Mercury/Mariner New Lower
150-200 HP 1992-2007 2.5L 25"
1.87:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) INCLUDED		 $200 ME-G6-09A-N
$2,266
V-6
 Mercury/Mariner Rebuilt Lower
150-200 HP 1992-2007 2.5L 25"
1.87:1 Ratio 4-3/4" Hub
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) INCLUDED		 $200 ME-G6-09A-R
$2,026
V-6
 Mercury/Mariner New Lower
150-200 HP 1992-2007 25"
1.87:1 Ratio 4-3/4" Hub COUNTER ROTATION
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) INCLUDED		 $250 ME-G6-10A-N
$2,566
V-6
 Mercury/Mariner Rebuilt Lower
150-200 HP 1992-2007 25"
1.87:1 Ratio 4-3/4" Hub COUNTER ROTATION
Also replaces old-style 1:7/8 ratio 4-1/4 Hub Units
(which have NO core value; the price remains the same)
ANODES (ZINCS) INCLUDED		 $250 ME-G6-10A-R
$2,206
DON'T SEE WHAT YOU NEED? JUST ASK.
 QUICK QUOTE FORM

Now that you have found what you need, please order it using the shopping cart above, the secure quick order form, or call in your order. Prices iinclude shipping by UPS 3 day within the 48 contiguous United States only. Some bulky and extremely heavy items may incur additional charges. You will be notified beforehand if this is the case. Remember, all orders receive free technical support from the MasterTech!

  
 

Please review our Warranty, Returns & Refunds policies before you place an order.

DISCLAIMER

The information provided on these pages is correct to the best of my knowledge, however the MasterTech makes no warranty, express or implied, regarding the use of, results of, or liability created from, application of this data. This information is disseminated in good faith, however MasterTech assumes NO LIABILITY whatsoever in regard to this service. The information, software, products, and services published on this web site may include inaccuracies or typographical errors. Changes are periodically added to the information herein. Mastertech may make improvements to this site at any time. Parts ordered from this website may or may not be in dealer stock at the time of order. Thank you for reading.

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Revised 8-7-09