What is Volvo part 23417523?

Part 23417523 is the Concentric Pneumatic Clutch Actuator (CPCA) for the Volvo FMX460 (D12 460hp engine). It is the air-actuated cylinder that mounts concentrically around the gearbox input shaft and replaces the traditional clutch fork and external slave cylinder arrangement. It incorporates an integrated release bearing.

What does CPCA mean on a Volvo FMX460?

CPCA stands for Concentric Pneumatic Clutch Actuator. It is Volvo's proprietary design where the actuator cylinder sits concentrically around the gearbox input shaft. When the TCU signals clutch disengagement, air pressure (8–10 bar) pushes the piston, acting on the integrated release bearing, which presses the pressure plate release fingers. No external fork or slave cylinder is involved.

What is the operating pressure of CPCA 23417523?

The Volvo CPCA 23417523 operates at 8–10 bar air pressure sourced from the vehicle's main air system. A single pipe connection feeds the actuator. Always ensure the vehicle air system is fully pressurised and the pressure regulator is functioning correctly before diagnosing CPCA issues.

What are the symptoms of a failing CPCA 23417523?

Early: air leak audible at actuator, clutch drag or incomplete disengagement, slightly harder gear changes. Mid-stage: grinding noise on clutch engagement (worn internal release bearing), loss of actuator pressure causing inconsistent disengagement, I-Shift fault codes MID 130 PSID 30 (actuator position error) or PSID 29 (clutch slip). Critical: complete inability to disengage clutch — truck cannot select gears.

What is the cross-reference for 23417523?

The cross-reference for 23417523 is 21580956, which appears in the Volvo EPC as an alternate number for the same CPCA unit. Both numbers refer to the concentric pneumatic clutch actuator for the FMX460 D12 platform. Always verify against your chassis serial number.

Does 23417523 fit both I-Shift and manual FMX460?

Yes. Part 23417523 is the CPCA for both manual and I-Shift AMT equipped FMX460, FH460, and FM460 trucks. After CPCA replacement on I-Shift equipped vehicles, clutch calibration via VCADS Pro is mandatory before operation.

How do I replace the CPCA 23417523?

1. Depressurise the air system and disconnect the air line to the CPCA. 2. Support the gearbox on a transmission jack and remove it. 3. The CPCA slides off the input shaft as a complete unit — inspect the shaft for damage. 4. Fit new CPCA 23417523, align on shaft, reconnect air line to correct torque. 5. Refit gearbox and perform I-Shift clutch calibration in VCADS Pro.

Can I repair CPCA 23417523 or must I replace it?

The CPCA 23417523 is a sealed unit. Internal seal kits and individual components are not commonly available in the aftermarket. The standard repair is unit replacement. Attempting to rebuild a CPCA without OEM seal kits risks air leaks under pressure and immediate reoccurrence of the fault.

What fault codes does a failed CPCA 23417523 produce?

Common I-Shift fault codes from CPCA failure: MID 130 PSID 30 (clutch actuator position error — CPCA piston not reaching target), MID 130 PSID 29 (clutch slip detected — TCU cannot achieve disengagement). These can also appear from air supply issues, so always verify air pressure before condemning the CPCA.

Does 23417523 fit FMX500?

No. 23417523 is specified for FMX460 with the D12 460hp engine. FMX500 (D13 engine) uses a different CPCA — part 24211409. Always confirm fitment against your chassis serial number.

Can PTC supply 23417523 to UAE, Nigeria, or Kenya?

Yes. PTC exports from Mumbai to UAE, Nigeria, Kenya, Saudi Arabia, South Africa and 40+ countries. Airfreight for urgent CPCA orders. Full export documentation provided: commercial invoice, packing list, certificate of origin.

Is CPCA 23417523 OEM or aftermarket?

PTC supplies OEM-specification aftermarket CPCA units for 23417523, built to Volvo original bore, seal specification, and operating pressure ratings. Genuine Volvo parts are also available on request. OEM-spec quality is critical for this unit — seal failure under 8–10 bar air pressure causes immediate clutch disengagement loss.

Central Slave Cylinder 23417523 Volvo FMX460

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