AMT I-Shift Gearbox Solenoid Valve Unit (For WABCO / VOLVO / RENAULT)
Eliminate transmission shift lag and intermittent gear slip with this premium AMT Transmission Solenoid Valve Component. Engineered as a high-precision original equipment specification rebuild hardware by WABCO, this single valve module replaces degraded internal actuators within the transmission control housing to restore crisp, seamless automated manual transmission (AMT) responses.
📌 Key Highlights
- Official Reference Specification: Part material number 4420672931 (442 067 293 1), cataloged as premium genuine replacement gear hardware.
- Targeted Actuation Overhaul: Solves critical "gearbox communication faults" or solenoid mechanical jam codes that lock vehicles out of vital high/low split gears.
- Premium Mechatronic Integrity: Formulated with a net hardware weight of 0.10 kg (3.53 oz), built using structural composites capable of enduring high-frequency rapid pneumatic cycling.
- Direct-Fit Configuration: Designed to snap flawlessly into the factory transmission control housing matrix, ensuring zero air or pressure line leakage.
🔄 Comprehensive Cross References & Repair Kits
To guarantee a 100% accurate workshop installation, this mechatronic solenoid valve mirrors or functions alongside the following industry identifiers:
- VOLVO OE Numbers: 21911584, 21571886, 20817637 (Fits FH12, FH13, FM4 series platforms)
- RENAULT TRUCKS OE Number: 7421571886 / 74 21 571 886 (Suits Premium 2 & Magnum models)
- COJALI Parts Reference: 2261327
- Companion WABCO Circuit Ribbons: Pairs perfectly with WABCO mechatronic flexible circuit overlay kits 4462401224 and 4462403214.
🚚 Vehicle Fitment & Technical Suitability
| Manufacturer / Fleet | Compatible Commercial Models & Series | Gearbox Setup / Family Suitability | Service & Diagnostic Notes |
|---|---|---|---|
| VOLVO Trucks & Buses | FH12, FH13, FH 4, FM 4 Series; B5LH, B8R, B11R Coach Chassis Platforms | Compatible exclusively with **Volvo I-Shift (AT/ATO Series)** and **Renault Optidriver** 12-Speed automated transmissions (e.g., AT2412C, AT2512C). | Mechatronic inner control hardware. Clearing passive transmission codes and executing shift travel adaptation learning via a diagnostic tool (e.g., Volvo Tech Tool / PTT) is strictly required post-installation. |
| RENAULT TRUCKS | Premium 2, Magnum DXi, Kerax Heavy Vocational Lines |
Workshop Tip: When rebuilding the internal actuator stack, ensure that the mating surface of the connector board is completely free of oxidized debris or old metallic fluid shavings. Lightly test-cycle the solenoid stroke before final shell closure to avoid seal pinching.
⚙️ Detailed Technical Specifications
- Product Type: Automated Manual Transmission (AMT) Actuator Shifting Solenoid Valve
- Net Component Weight: 0.10 kg (3.53 oz)
- Transmission Control Units: Rebuilds WABCO 4213650020 and 4213650080 top covers
- Condition: 100% Brand New Premium Original Quality Replacement
