K-series Transmission Guide
W William Davidson

K-series Transmission Guide

Sep 27, 2017 · Tech Articles
  • Tranny notes I have put together:
    1) 01-06 accord euro-r and 05-06 rsx-s have same tranny.
    2) 01-06 itr has the same 1-3 gear ratios as the 02-06 rsx-s, euro-r, and 06 si but has different 4-6 gear ratios.
    3) K20A2, K20A euro-r, K20Z1 all have the same 1-6 gear ratios.
    4) all 6-speed tranny’s except 02-04 rsx-s & 06+ CTR, have the same 4.764 FD.
    5) 06 si and 04-06 tsx have same 6th gear.

     

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D David Goldman
May 3, 2023

Will a d-series trans fit with a K20 or K24

J Josh
May 3, 2023

So I bought a k20a accord euro r 6 speed lsd for my ek with an eg/da subframe conversion, and I’ve heard that’s a tsx trans and need ekk4 mounts. This chart leads me to believe Its an rsx casing, and I need ekk2 mounts. Anyone have some insight for me before I waste $500 on incorrect mounts?

B BBW
May 3, 2023

I have k20A from a jdm accord euro R. The tranny is ASP3 which doesn’t show in your chart.

M Marcin
May 3, 2023

Hi, I am doing k20a2 AWD with 5 speed gearbox with crv II from k20a4 engine. I would like to do short runs and a 6-speed gearbox, but I do not know where to choose the ratio. K20a2 (npq3) does not match. I heard that someone was making a hybrid with crv III r20a2. I am asking for hints.

D Damion hamilton
May 3, 2023

Factory spec for the automatic k20a3 tranns