MasterTech
Marine

Overton's
For everything else boating related.

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

Right Here!

 

An OMC Nightmare!

OMC Nightmare!

 

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!

 


,

 
banner with sunset over water in ship yard
 
 


Click here to order by phone

Important!!! You must allow JavaScript to run to use the drop-down navigation menu.
Please allow a few moments for the menu to load.
INTERNET EXPLORER users must also " allow blocked content" if the pop-up appears.

 


CONNECTING RODS AND
CRANKSHAFTS
FOR YOUR

OUTBOARDS

The first efforts to rebuild a damaged outboard crankshaft revealed that this was a difficult, if not an impossible task! They must be strong and hard enough to withstand the punishment delivered by roller bearings under heavy loads and high Rpm's.

In recent years, a reliable process has been developed to rebuild the surfaces on the outboard crankshaft. Journals are restored to standard size & hardness (RC 58-63) by resizing, rebuilding the journal with a special welding process, regrinding and heat treating. They are then shot-peened to relieve stresses and magnaflux-inspected to ensure highest quality.

This is the answer to those overpriced OEM cranks! The following table lists the readily available shafts and their cost. IF you have something other than what is shown here, most any crankshaft for older models can be repaired!

Cores value are as stated. Core value must be determined upon receipt of the old shaft, and examination by the rebuilder, so all shafts are sold outright subject to appraisal of the core. The basic rebuildable shaft will have good splines, and no more damaged journals than the number of cylinders of the motor. Part numbers and applications are provided by crankshaft rebuilder.

The crankshafts are listed by # of cylinders and horsepower. Just select the correct # of cylinders, HP, & year, and before checkout, BE SURE to fill out this little box with the SERIAL #, as these cranks vary as to year AND model.

You may elect to use the quick order form and and bypass the cart if you wish, just be sure to give me as much info as possible!

warning symbolNOTE!! EXTREMELY IMPORTANT !! You MUST PROVIDE THE SERIAL NUMBER when ordering. I cannot send you the correct parts otherwise since crankshafts can vary from model to model in the same year!!

Please take the time to enter the SERIAL NUMBER of your motor!
Click "SUBMIT" then just hit your browser's back button and order the crankshaft. SERIAL # will be stored in the shopping cart and sent in with your order. Thanks!

SERIAL #

First On line purchase?

SHIPPING IS NOT INCLUDED ON CRANKSHAFT ORDERS!!
DUE TO VARYING WEIGHTS, SHIPPING WILL BE CALCULATED
AT TIME OF ORDER, GENERALLY AROUND $20


CLICK HERE FOR CONNECTING RODS

MERCURY/MARINER CRANKSHAFTS

3 CYLINDER MOTORS
HP
YEARS ORDER
PART #
PRICE
SELECT
50-60 HP
       RECONDITIONED
1991-97 ME-U74
491.00
50 HP
       RECONDITIONED
1998-03 ME-U96
491.00
60 HP
       RECONDITIONED
1998-03 ME-U98
491.00
70-90 HP
       RECONDITIONED
1987-93 ME-U76
625.00
70-90 HP
       RECONDITIONED
1994-97
(SERIAL # 0G437999 —> BACK
ME-U78
625.00
70-90 HP
       RECONDITIONED
1997-03
(SERIAL # 0G438000 —> UP
ME-U124
625.00
INLINE 4 CYLINDER  MOTORS
HP
YEARS ORDER
PART #
PRICE
SELECT
MANY
MANY 6634N
570.00
V4   MOTORS
HP
YEARS ORDER
PART #
PRICE
SELECT
100-125 HP
        RECONDITIONED
1988-03 ME-U82
741.00
135-150 HP
  LARGE TOP OIL INJECTED
        RECONDITIONED
1984-90 ME-U84
741.00
135-150 HP
  OIL INJECTED
        RECONDITIONED
1991-01 ME-U86
741.00
V6   MOTORS
HP
YEARS ORDER
PART #
PRICE
SELECT
150XR4 2.4L
175-200 HP
2.4L
   SMALL TOP OIL INJECTED
        RECONDITIONED
1984-91 2.4L ME-U88
741.00
150 EFI 2.5L
150-200 HP
2.5L CARB
        RECONDITIONED
(ALL OIL INJECTED

135-175 HP
2.5L DFI
        RECONDITIONED   
 (ALL OIL INJECTED

1991-04 2.5L




1998-05 2.5L
ME-U90
741.00
2.0L, 2.4L, 2.5L
       NEW
1976-91
INCLUDES
#496 UPPER MAIN
& #445 CENTER MAIN
BEARINGS
953C
1,284.00
2.0L, 2.4L, 2.5L
       NEW
1992-UP
INCLUDES #756 UPPER MAIN
& #167 CENTER MAIN
BEARINGS
953C
1,234.00
225-250 HP 3.0L
   8-SPLINE CARB & EFI
       REMAN
1994-94 3.0L ME-U94
771.00
2.5L V6 SPORTJET
       NEW
MERC # 455-834980T3 455C
905.00
225-250 HP 3.0L
   13-SPLINE CARB & EFI
       REMAN
1996-03 3.0L ME-U92
855.00
Some cranks listed only as new are sometimes available REMAN also. 
  CALL FOR PRICE & AVAILABILITY
DON'T SEE WHAT YOU NEED? JUST ASK.
QUICK QUOTE FORM

MERCURY/MARINER CONNECTING RODS
CYLINDERS/HP
NEW,
or USED
OEM PART #
ORDER THIS
PART #
PRICE
PURCHASE
2 & 3 CYL
NEW
640-9612A7
640N
$85.00
3 & 4 CYL
    TOP GUIDED
NEW
646-818846A3
646N
$110.00
40 & 50 HP 4 CYL
USED
632-7621A3
632R
$84.00
3 & 4 CYL
    BOTTOM GUIDED
USED
638-9002A2
638R
$117.00
V-6
    BOTTOM GUIDED
NEW
636-8118A5
636N
$99.00
V-6 2.0L & 2.5L (LATE)
   TOP GUIDED
NEW
644-818141A2
644N
$109.00
V-6 2.0L & 2.5L (EARLY)
USED
625-5250
625R
$109.00
V-6 2.5L OPTIMAX
    Large Pin
NEW
600-877853A04
600-877853A2
600N
$152.00
V-6 3.0L
NEW
647-822373A2
647-822373A3
647-822373A7
647N
$283.00
V-6 3.0L
USED
647-822373A2
647-822373A3
647-822373A7
647R
$117.00
DON'T SEE WHAT YOU NEED? JUST ASK.
QUICK QUOTE FORM
 
 

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.