Pump AYC EVO 4-6
A restored Active Yaw Control (AYC) pump for the Lancer Evolution IV, V and VI — the hydraulic heart of the system that varies torque between the rear wheels through a corner. Each pump is stripped, ultrasonically cleaned and rebuilt with genuine replacement parts, then calibrated for pressure, flow and solenoid response and load-tested on the bench. This is a Stage 1 build: restored for improved performance and faster pressure build-up, which is what a worn AYC system tends to lose first. Supplied with a 12-month warranty and shipped worldwide.
Related units
Related articles
ACD/AYC Pump Fluid: Type, Change and Maintenance (Evo VII–X)
ATF SP III, about one litre, reservoir in the boot. How to check it, when to change it, and the AYC diff oil mix-up.
Read more →
Evo VII–IX ACD/AYC Codes 45, 46, 81 and 82: What They Mean
Codes 45 and 46 are the pressure sensor, 81 the pump relay, 82 no pressure. How to read them and what to check first.
Read more →
Evo X Codes C161E and C161C: What They Mean and How to Fix Them
C161E is a pressure problem, C161C is electrical. What each code means, what causes it and how to diagnose it.
Read more →