Turbocharger for Acura RDX (2007-2012) 2.3L

Direct-Replacement Turbocharger for 2007-2012 Acura RDX (TB1/TB2)

What it Does: The Direct-Replacement Turbocharger restores factory boost pressure and resolves variable-geometry valve failure on the 2007-2012 Acura RDX 2.3L.

The Stock Acura RDX Variable Flow Turbocharger Failure

The factory Mitsubishi TD04HL-15TK31-VFT unit fitted to the K23A1 engine utilizes an internal Variable Flow Turbo (VFT) valve to regulate exhaust velocity across the turbine. Under chronic heat cycles and thermal expansion, the internal flow control valve shaft and linkage eyelet wear excessively, developing mechanical play that prevents full valve seating. This slop triggers chronic P2263 diagnostic codes, severe low-end boost lag, and erratic boost control. Additionally, high-mileage factory center housing rotating assemblies (CHRA) suffer journal bearing wear and oil seal degradation, venting oil directly into the intercooler piping.

The Engineering Solution

This brand-new replacement assembly installs directly onto factory manifold studs and oil/coolant plumbing without modification. Manufactured with a high-nickel ductile iron turbine housing and precision-balanced rotating assembly, the unit eliminates shaft deflection and radial play. The variable flow valve linkage and internal wastegate mechanism are machined to tight tolerances to resist binding and thermal distortion under sustained exhaust gas temperatures (EGTs), restoring factory spool characteristics, mid-range torque, and consistent manifold pressure.

What's Included

• 1 × Turbocharger

Technical Specifications

Compatibility

• 2007 Acura RDX 2.3L Turbocharged (FWD / SH-AWD)
• 2008 Acura RDX 2.3L Turbocharged (FWD / SH-AWD)
• 2009 Acura RDX 2.3L Turbocharged (FWD / SH-AWD)
• 2010 Acura RDX 2.3L Turbocharged (FWD / SH-AWD)
• 2011 Acura RDX 2.3L Turbocharged (FWD / SH-AWD)
• 2012 Acura RDX 2.3L Turbocharged (FWD / SH-AWD)

Frequently Asked Questions & Fitment Warnings

Does this fit the TB1/TB2 RDX?

Yes, this is a direct fit for the 2007-2012 Acura RDX equipped with the K23A1 2.3L engine.

What maintenance is required when replacing this turbo?

Clean or replace the oil feed and return lines, flush the intercooler tract, and change the engine oil and filter prior to installation to prevent oil starvation or particulate damage to the new CHRA.

The Acura Performance Standard

Designed to sustain the high-revving thermal demands of Acura's early forced-induction engineering, this unit delivers crisp spool response and reliable high-RPM boost stability across every drive cycle.