No change on the supercharger supplier (IHI), however, the bearings were improved on 2017+.
Hellcat 2.4L supercharger is running for $4000-$7500-ish.
Part Number: 68373302AB (per TechAuthority February 11, 2020)
2019 - 68373302AB
2018 - 68373302AA - Supersession(s): 68373304AA, 68373304AB, 68373304AC, 68373304AE
2017 - Supersession(s): 68271244AB, 68271244AG, 68271244AI, 68271244AJ, 68271244AL, 68271244AM
2016 - Supersession(s): 68271244AB, 68271244AG, 68271244AI, 68271244AJ, 68271244AL
2015 - Supersession(s): 68165960AA, 68165960AB, 68165960AC, 68165960AD, 68165960AE, 68165960AF, 68271244AA, 68271244AB, 68271244AG, 68271244AI, 68271244AJ, 68271244AL
Supercharger Rebuilds:
Jon Bond offers 3 stages:
Stage 1- $1733 - OEM
Stage 2- $2200 - supports up to 18,000 rpm, upgraded bearings/coatings
Stage 3- $3200 - supports up to 22,000 rpm
A 2.85 pulley and stock lower spins ~14psi @ 17,800 rpm.
Stock OEM ~11.6psi @ 14,800 rpm
https://www.jonbondperformance.com/...ercharger-performance-rebuild/?v=868f8823ca02
Redeye 2.7L Supercharger is running $9500-ish:
Part#: 68454113AB (per TechAuthority February 11, 2020)
The advantage here is less rotor rpm, heat, and longevity ~ 14.5psi @ 15,340 rpm compared to a 2.4L with smaller pulley and higher rpm.
If you get a Mopar part and have it installed at the dealership, you get a 2yr/unlimited mile warranty on the part (
https://www.mopar.com/content/dam/mopar/pdf/warranty/mopar_parts_accessories_warranty_statement.pdf). That could be beneficial if the OEM bearings go out. As shown above, there have been multiple revisions with the 2.4L Supercharger.
I had my first supercharger warrantied with part# 68271244AG; which is already making driver side bearing noise after 1 year. Another forum member had 68165960AD and just got it replaced with 68271244AM.