800 engine question

I know the early 800's had problems . Are the new ones lasting longer? If so then what year did they get fixed? What mileage can you expect before major problems?

2015 and newer no issues. No problem with Axys motors. Like most motors top end after 3000 miles advisable.

They got good in 2014 or 2015, I had a. 2015 never had any issues

I have a 17 with 4300 kms and still going strong.

I unfortunately had an engine failure at 1400 km /2 months ago with my 800HO SKS. Pto side piston failure and destroyed engine. Luckily had extended warranty and got new engine. When at dealership looking the failure, there were two 800's with exact same failure.One 2016 and one 2017. Trend? not sure but staff not convinced of 800HO engine longevity. Note: I'm a longtime Polaris guy and still have a 2011 Assault with 5800km that is still running strong.(fix kit done at 2k and oil turned up.)

My 2012 pro was great sold it with 3400 trouble free kms on it, my 2013 had 5600 km on it when i sold it to a fella in Kelowna that was still riding it 2 yrs later with many more trouble free kms on it , I put a new top end in it as a preventative maintenance at 2500 k and had the oiler turned up as well as a slp stage 4 kit put on it from new, bought a 2016 axys 800 and it had a wiring harness issue and once that was replaced it ran great and a friend bought that off me and is still riding it with just over 7000 kms on the original motor and its still running strong.. for now!..LOL his son has close to 9000 kms on his 2013 pro 800 with the original motor and the oil pump was never turned up in it! a good friend has a 2014 and the motor went at around 3600 kms as a result of something rubbing holes in his oil lines so it was covered by warranty. I have heard many stories of the earlier models blowing up but when talking with one of the sled mechanics out here he said a lot of the ones he'd seen that blew up had bluing on the crank from heat which he attributed to a lack of oil and was a big believer in turning up the oilers on the older 800's.

The 800 improved greatly in my opinion in MY18. The improved cooling with updated thermostat and head reduced running temps greatly. Also the crankcase was updated to improve the lubrication and updated Mag end seals.

Lesser improvements were the EGT sensor was updated.

While the 800 suffered earlier years in the Pro chassis it was decent by 14 and generally reliable by 15. The H.O. I don’t think was terrible in 16-17 but I would opt for a 18 or later for the durability improvements.

The 2020’s, which are the last run of the 800, the crank taper was changed to match the 850’s. I would guess the MY20’s to be some of the best 800’s.