header image
   In Your Cart: Items  
(click to view cart) We take these cards  PayPal logo


MASTERTECH'S
MARINE ENGINE PARTS CENTER
WE HAVE ANSWERS TO YOUR PARTS PROBLEMS

Merc Logo   
MASTERTECH   POWERHEAD REBUILD KIT

 

 

Mercury 40-50 HP Classic 4 Inline rebuild kit
Click for large image
(opens in new window)


40 HP 1990-1997
45 HP 1986-1989
50 HP 1970-1985
 "Classic Inline 4" Models

4-Cylinder 2.565" Bore
Oversizes available:.010, .015, .020, .030, .040
"It's a Classic -- bring it back to life"

Note: Please be aware that rod bolts are NOT available
for 50 HP (all) and 45 HP (prior to 1986, below serial B110787).
The rods for 45 HP were redesigned at that point and the old bolts
& nuts are no longer made. You must re-use them.
Newer 45 HP and all 40 HP use the bolts in the kit (see drawing).

KIT CONTAINS:

    Merc rod bolts
  • PISTONS with RINGS, WRISTPINS, and RETAINERS
  • Complete Gasket & Seal Kit
  • Crankshaft Upper & Lower Main Bearing
  • Crankshaft Center Main Bearings
  • Connecting Rod Big End Bearings
  • Connecting Rod Small End Bearings
  • Connecting Rod Bolts (40 HP & Later 45 HP)


ALSO INCLUDED:

  • Gasket Sealing Compounds and Crankcase Sealer
  • Rebuilding Tips Guide
  • Technical Assistance from the Mastertech !

Kit 100-05-1x

Desired Piston Size:

$545.00
 Same price regardless of size

 
       
 

DON'T SEE WHAT YOU NEED? JUST ASK.
 QUICK QUOTE FORM

 

 



We pay the freight out in USA on all orders over $100.00. Orders less than this amount will have a shipping and handling charge of $8.75 added. Some bulky and heavy items will incur additional charges. You will be notified beforehand if this is the case. All orders normally ship via USPS. 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.


Revised: March 31 2021