Variable Swirl System Mag Valve 1-82563871-0 / 1825638710 For ISUZU CXZ 10PE1 6WF1 — OEM-Spec Solenoid Valve, 0.6–0.9 Kg, Metal Construction

The Variable Swirl System Mag Valve with OEM references 1-82563871-0 / 1825638710 (factory reference: VALVE; MAG, VARIABLE SWIRL SYSTEM) is a verified replacement intake air control solenoid for ISUZU CXZ, CYZ, and EXZ heavy-duty trucks equipped with the 10PE1, 10PD1, 10PC1, and 6WF1 diesel engines. This valve is the critical control element within ISUZU's Variable Swirl System (VSS) — an advanced intake technology designed to actively manage intake air motion for superior combustion efficiency.

The MAG Valve receives signals from the engine control unit based on speed, load, and temperature, and precisely regulates airflow through the intake system to control the intensity of the intake swirl. This precision ensures the air-fuel mixture is optimized for every operating condition — creating a strong swirl at low speeds for improved combustion stability and a weaker swirl at high speeds for increased power output. The valve is constructed from high-strength metal and heat-resistant plastic, designed to withstand the extreme heat, continuous vibration, and corrosive contaminants of the engine bay without degradation.

This is the intake air swirl control solenoid for the VSS system. It is not an exhaust brake valve, not a vacuum switching valve (VSV) for the brake system, and not a service brake component. Confirm the required system component before ordering.

The valve is confirmed for ISUZU CXZ with the 10PE1 engine, with platform coverage extending to CXM/10PE1, 10PD1, 10PC1, 6WF1, CYZ/CYH, and EXZ/6WG1 applications. Confirm the engine code and chassis model before ordering.

Reference data shows a net weight of 0.6 kg (Japanese/French/Spanish listings) and 0.9 kg (Russian listing), with material described as metal (German listing) or high-strength metal and heat-resistant plastic (Russian listing). Confirm weight and material specification at inquiry if precise matching is required.

• OE Reference & Part Name Verified: 1-82563871-0 / 1825638710 — confirmed as "VALVE; MAG, VARIABLE SWIRL SYSTEM" across Japanese, French, Spanish, Russian, and German supplier catalogs.
• Engine & Vehicle Coverage Verified: ISUZU CXZ 10PE1 — confirmed across multiple language portals. Platform coverage extends to CXM/10PE1, 10PD1, 10PC1, 6WF1, CYZ/CYH, and EXZ/6WG1.
• Function Verified: The valve is the critical control element within ISUZU's Variable Swirl System (VSS), regulating intake airflow to control swirl intensity for optimized combustion at all engine speeds.
• Material Verified (Variant-Dependent): Metal (German listing) / high-strength metal and heat-resistant plastic (Russian listing) — confirm at inquiry.
• Net Weight Verified (Variant-Dependent): 0.6 kg (Japanese/French/Spanish listings) / 0.9 kg (Russian listing) — confirm at inquiry.
• HS Code Verified: 84138100 — confirmed by Russian supplier data.
• Cross-Reference Density Verified: 1-82563871-0, 1825638710, 1-82563871-2, 1825638712 are consistently grouped as interchangeable or related references across multiple catalogs.
• Warranty Reference: 3 months (Japanese/French/Spanish listings) — confirm tier at inquiry.
• MOQ & Supply Reference: Small quantity accepted with quantity discounts (Japanese/French/Spanish listings); supply capacity 1,000 pcs/month; delivery 15–20 days (Japanese/French) / 1–15 days (German).
• Packaging Verified: Neutral box / Color box / Customer-branded packaging available.

• Loss of low-end torque / poor drivability: A malfunctioning VSS valve prevents the system from creating a strong low-speed swirl, leading to poor fuel atomization, unstable idling, and reduced low-end torque.
• Increased fuel consumption: Inefficient combustion due to incorrect swirl intensity results in higher fuel consumption and elevated operating costs.
• Elevated NOx emissions / failed emissions inspection: The VSS valve's role in optimizing combustion directly affects NOx emissions. A failed valve can cause failed emissions inspections.
• Rough idling / unstable engine operation: Incorrect intake air motion disrupts combustion stability at idle, producing rough idling and inconsistent engine speed.
• Diagnostic trouble codes (DTCs): An uncertified or malfunctioning valve may trigger diagnostic trouble codes related to the VSS system.
• Reduced power output at high speed: The VSS system's ability to weaken swirl at high speeds for increased power is compromised, reducing top-end performance.

• Engine and chassis are the first checks: This VSS solenoid is confirmed for CXZ with 10PE1, with platform coverage extending to CXM, CYZ, CYH, and EXZ. Confirm the engine code and chassis model against the vehicle documentation before ordering.
• Suffix variant caution: 1-82563871-2 is a related reference used for CXZ2003/6WF1 applications. While grouped as a family member, do not assume it is dimensionally or electrically identical to 1-82563871-0 without confirming the original unit's marking and connector configuration.
• Coil resistance and connector are critical for diagnostics: The valve is an ECU-controlled solenoid. Confirm the coil resistance value and connector pin configuration against the original unit if diagnostic code matching is required. These specifications are not publicly published.
• Material and weight vary by supply channel: Confirm whether the application requires the 0.6 kg or 0.9 kg variant, and whether metal or metal + heat-resistant plastic construction is specified.

1. Confirm the required part first: Verify the original valve is the Variable Swirl System MAG Valve and that the connector pin count, coil resistance, and port configuration match the replacement. Compare the physical form to the original unit.
2. Disconnect the electrical connector: Release the connector latch carefully — do not pull on the wires. Inspect the connector pins for corrosion; a corroded connector can mimic valve failure.
3. Label and disconnect the intake/vacuum hoses: Note the port positions and hose routing before disconnecting. Plug the hoses to prevent contamination.
4. Remove the old valve: Unbolt the valve from its mounting location. Note the orientation and any brackets or spacers.
5. Install the new valve: Position the 1-82563871-0 valve in the original mounting location. Verify that the airflow direction (if indicated) is correct before tightening.
6. Reconnect the hoses and electrical connector: Reconnect the intake/vacuum hoses to the correct ports. Plug in the electrical connector until the latch clicks.
7. Clear codes and verify operation: Use a diagnostic tool to clear any stored VSS-related codes. Start the engine and verify that the valve actuates correctly through the ECU's diagnostic routine. Check for smooth idle and responsive acceleration.
8. Check for leaks: Inspect the hose connections for vacuum/intake leaks. A leak will disrupt swirl control and may cause diagnostic codes to return.

• Inspect the valve, hoses, and electrical connector at every major service or every 40,000–60,000 km — look for brittle hoses, corrosion, and carbon buildup.
• Replace brittle vacuum/intake hoses whenever the valve is serviced — a collapsed or leaking hose can mimic valve failure.
• Clear diagnostic codes and verify coil resistance after installation to confirm the new valve is functioning correctly within the ECU's expected parameters.
• Use only a verified OEM or OEM-specification valve — uncertified solenoids may lack the critical calibration for correct swirl control, leading to poor fuel atomization and drivability issues.

• Standard packing: Neutral box / Color box / Customer-branded packaging — confirmed by supplier terms.
• Package contents: 1 × Variable Swirl System Mag Valve. Mounting hardware, hoses, and electrical connector pigtail are not included unless explicitly stated — confirm at inquiry.
• Set options: Valve only (standard) / valve + hose kit (where available) — specify at inquiry.
• Suitable for: ISUZU CXZ / CXM / CYZ / EXZ intake and emissions system repair shops, heavy-duty commercial truck fleet maintenance departments, diesel engine air management specialists, spare parts distributors, and export wholesalers.