Brandon Scott 1 Posted March 21, 2022 Hey, I’m new to owning an atv. Just got a 2021 Honda Rancher TRX 420 FM and was looking for a service repair manual? Seems like the 2014 and up are all the same, is that right? Anybody have a pdf or know a place I can buy a physical copy? Share this post Link to post Share on other sites
TBRider 1,406 Posted March 22, 2022 The pdf for the 2019 trx420 is in the library here. Top right icon, or search service manuals. 1 Share this post Link to post Share on other sites
Brandon Scott 1 Posted March 22, 2022 Thanks! Anybody happen to know the differential crush washer sizes? Share this post Link to post Share on other sites
Fishfiles 20,145 Posted March 22, 2022 I cll a crush washer the washer under the drain plugs , what do you call it , see you used plural crush washers ( front and back ??) this is the front I would never change them unless they are totally messed up , and I have never had to buy one before ---- I have rubbed them on emery paper to freshen them up before 046 GASKET (8MM) 90471-580-000 In Stock $3.54 $3.45 Share this post Link to post Share on other sites
Brandon Scott 1 Posted March 22, 2022 Oh ok, thanks man. Ya I was talking about the drain plug washers. I think the rear is a different size than the front. It’s recommended to change it out every time but it sounds like people rarely do. You’ve never had any leaking issues or anything? Share this post Link to post Share on other sites
Fishfiles 20,145 Posted March 22, 2022 Looks like they are all the same , you don't need to change them , unless they are bent to he!! --- rear final diff Straight axle - GASKET (8MM) 90471-580-000 Independent suspension GASKET (8MM) 90471-580-000 Share this post Link to post Share on other sites
Brandon Scott 1 Posted March 22, 2022 Sweet! Thanks for the help! 👍 1 Share this post Link to post Share on other sites
