Ski-Doo 850 ETEC Stage 3 Engine Rebuild kit Crankshaft, Pistons, Cylinder MXZ Renegade Summit XRS Freeride Back Country 2017-25

MCB Pro-Series Engine kits are simply the highest quality engine rebuild kits available. Period!

Professionally re-manufactured OE crankshafts that are 100% disassembled, maganafluxed, gauged, indexed and trued to perfection.
We ONLY use Koyo and FAG bearings that exceed OE specs to ensure long life and replace all parts that show ANY wear at all.

These assemblies are built by skilled craftsmen that take pride in producing precision parts that can stand the abuse of a powersports environment.
Our MCB pistons are made to OUR specifications in an ISO9001 environment and have proven for many years to have better than OE durability while increasing overall performance.

MCB pioneered the SD Dual-ring piston design solving numerous problem all at once and we continue to refine each and every part we sell, giving the customer peace of mind that he is buying a premium, well engineered, product.
Our rings are manufactured by the exact same plant that provides rings for F1 teams /Ducati / and TRD Racing

The Pro-Series engine kits are COMPLETE with everything you need to rebuild your engine.


*** PLEASE BE AWARE THAT WE WILL REQUIRE YOU TO SEND BOTH YOUR CRANKSHAFT AND CYLINDER TO US PRIOR TO YOUR ORDER BEING SHIPPED - PLACE YOUR ORDER AND AFTER
DOING THAT WE WILL SEND YOU AN EMAIL WITH SHIPPING INSTRUCTIONS TO GET THEM TO US - PLEASE DO "NOT" SHIP YOUR CORES UNTIL YOU RECEIVE THE EMAIL ***


FITS:
SKI-DOO 850 ETEC
MXZ - MXZ XRS - MXZ TNT - Summit - Summit X - Renegade - Adrenaline 2017-24


MCB STAGE-3 KIT Includes:
- Pro-Series ready to install crank/rod assembly with bearing distance gauge and shim kit as well as a full set of very specific instructions for installing the crankshaft. (if you have previously built an 850 and have the distance gauge and shims, they can be removed from this kit in the drop down menu as you are detailing your order)
- MCB Premium Hypereutectic CAST (single ring) Pistons , Premium Rings, Pins with the option to choose Premium MCB FORGED (dual ring) Pistons and with optional FORGED Severe Duty (dual ring) Pistons for Turbo applications.
- Premium caged pin bearings
- Wossner circlips (the best)
- Teflon crank seals
- Complete premium Interface gasket kit that includes all the Viton o-rings for the head, power valves, etc.
- All necessary Viton o-rings and pump seals to completely rebuild the engine.
Although we highly recommend you download a Factory service manual for your specific model for torque values, and other specifications ,we include detailed top end instructions to help you along the way.