Basic Info

• OE Part No.: 0501 341 674

• Product Type: Intarder Hydraulic Retarder Proportional Solenoid Valve / Retarder Pressure Modulation Valve

• Brand: ZF OEM Matching Transmission Retarder System Repair Spare Parts

• Compatible Gearbox: ZF Traxon 12TX series AMT, upgraded ZF 16S Ecosplit series manual transmission equipped with original Intarder hydraulic retarder

• Applicable Vehicles: Sinotruk Sitrak, MAN TGS/TGX, DAF CF/XF, Iveco Stralis heavy-duty tractors

• Working Voltage: 24V DC

• Material: High-strength precision alloy valve body, stainless steel spool, HNBR high-temperature resistant multi-channel sealing assembly, anti-vibration encapsulated electromagnetic coil

• Net Weight: approx 0.42kg (reference value)

• Matching Components: Retarder ECU, retarder temperature & pressure sensors, retarder housing, main hydraulic circuit of transmission

• Function: Convert ECU electric control signal into proportional hydraulic pressure, adjust oil filling rate of retarder working cavity, achieve stepless control of hydraulic braking torque

• Category: Heavy Truck ZF Transmission Intarder Hydraulic Retarder System Repair Spare Parts

Material & Advantages

1. Precision machined alloy valve body and stainless steel spool, low hysteresis, rapid signal response, guarantee continuous linear adjustment of braking force

2. Imported HNBR composite multi-layer sealing structure, resistant to high-temperature gear oil corrosion, effectively prevent internal hydraulic oil cross leakage

3. High-stability fully encapsulated coil, strong anti-electromagnetic interference, stable operation under vehicle vibration and wide temperature environment

4. Standard OEM mounting hole layout, oil port thread and wiring plug interface, direct bolt-on installation during overhaul without modification

5. Accurate linear pressure output, avoid downhill retarder jitter, insufficient braking or sudden loss of braking power

6. Adapt to long-distance mountain downhill transportation and continuous heavy-load working conditions with frequent retarder use

Application Scenarios

• Replace unstable, leaking, signal-abnormal original retarder proportional valve marked 0501 341 674 for ZF transmission with Intarder

• Fix vehicle faults including retarder no braking force, intermittent braking, uneven braking strength, ECU reporting retarder solenoid valve fault codes, slow retarder response

• Complete integrated hydraulic retarder disassembly overhaul and regular maintenance for fleets equipped with ZF gearbox fitted with Intarder

• Assemble matched retarder sensors and control pipelines following official ZF Intarder assembly standards

Supply & After-sale

• MOQ: 1 piece

• Warranty: 6–12 months (exclude contaminated transmission oil, wiring short circuit, collision damage and natural sealing aging)

• Packaging: Independent shockproof foam + sealed carton packaging to protect valve spool and sealing surface from scratch

• Remarks: Confirm gearbox type and original valve part number before ordering; 0501 341 674 cannot be interchanged with 0501 330 120. Retarder ECU parameter calibration is recommended after installation.

Gearboxes assembly include brand ZF, Eaton, FAST, Allison, DONGFENG, DC, Benz, volvo, HOWO, WLY etc. Gearboxes parts includegear, synchronizer, PTO, housing, bearings, shaft, top cover, sensors, wireness, repair kits... etc.

Our products have been exported to more than 50 countries and regions such as Korea, Chile, Russia, Kazakhstan, USA, Ecuador, Turkey, Iran, Africa, Latin America, etc., and have been unanimously recognized by customers.

In the future, we will be committed to creating higher-end quality and more intimate service. And a more comfortable customer experience to build Yongliwei company into an auto parts supplier with excellent corporate culture, scientific development concept and continuous innovation ability.

Shiyan Yongliwei Industry and Trading Co., Ltd. is a modern enterprise integrating design, development, production and sales of gearbox assembly and gearbox parts.

Our company was founded in Hubei province, China, and has been specialized the truck gearboxes in Chinese offline market for 21 years .Our parts are the leader of gearboxes area in the China now.

Our company was set up in the largest truck parts production base in the world –Shiyan city, Hubei, China, to meet the demand for products in the Asia and South American markets, a professional international trade sales team was born in Hubei in 2021.

Shiyan Yongliwei is focusing on creating high quality, high technology and high standard gearboxes and its parts.

* 8000 square meters of large warehouse.

* A number of maritime, land, air transport international logistics companies work closely together.

* To provide you with convenient, fast and low-cost e-commerce one-stop service.