ACD & AYC
Pump Restoration
Fully reconditioned active center differential and active yaw control pumps for the Mitsubishi Lancer Evolution. Bench-tested, warrantied, shipped worldwide.
Why specialists
trust the bench
Every unit passes the same process — diagnostics, restoration, calibration and load testing — before it ships.
Repair
Professional pump restoration to OEM+ specification.
Warranty
12-month warranty on every rebuilt unit we ship.
Parts
Genuine components in stock and ready to fit.
Fast
5–7 day turnaround on most restored units.
Featured units
Full cycle pump restoration
Complete restoration and maintenance for ACD and AYC pumps — from diagnostics through calibration, with optional Stage 1 and Stage 2 upgrades.
Trade in your old pump
Send photos of your unit for evaluation and get $150 – $350 credit toward a restored pump.
Latest 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.
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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.
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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 →