Description

ZF AS-Tronic Pressure Limiting Valve is a critical component in the proper operation and safety of the automated gearbox systems found in many commercial trucks and buses. At Autolectronix, we proudly stock new OEM-quality and professionally refurbished pressure limiting valves, specifically compatible with ZF AS-Tronic gearboxes, widely used in heavy-duty applications by MAN, IVECO, and WABCO-based transmission systems.

The pressure limiting valve plays a vital role in maintaining air pressure regulation within the gear actuation system. A failing valve can lead to:

• Gear selection delays or failures

• Irregular shifting

• ECU fault codes

• Air leak issues or compressor overload

To keep your fleet on the road and operational, we offer both new valves and exchange/refurbished options for cost-effective repairs.

🔍 Compatible Truck Brands and Module Numbers

This valve suits several ZF AS-Tronic platforms across major truck manufacturers:

• WABCO: 421 355 931 2 / 475 015 061 0

• MAN: 89.32690-6016 / 891.32690-6016

• IVECO: 42541044 / 503556744

Whether you're servicing a MAN TGS, IVECO Stralis, or similar models utilizing ZF AS-Tronic technology, this valve ensures air system pressure control is reliable, allowing smooth and fault-free gear shifting under all load conditions.

🔧 New vs. Refurbished Options Available

• Brand New Unit – R3500
  (Includes a refundable R500 core credit when old unit is returned.)

• Refurbished/Exchange Unit – R2000
  (Fully tested, reconditioned, and backed by our standard 3-month warranty.)

All valves undergo stringent testing for leaks, pressure regulation, and solenoid integrity, matching OEM specs.

📦 What’s Included

• Pressure Limiting Valve Assembly (as shown in image)

• New mounting O-ring

• Nuts and washers for immediate fitment

• Installation guidelines (on request)

All new and refurbished valves are cleaned, pressure tested, and warrantied for 3 months, provided installation is performed by a qualified technician.

🛠️ Common Symptoms of Valve Failure

If your truck is experiencing any of the following, a faulty pressure limiting valve could be to blame:

• “Gearbox malfunction” warning light

• Air pressure drops during gear changes

• Constant compressor cycling

• Gear skip or stuck-in-neutral faults

Don’t wait until it becomes a breakdown situation. Send us your faulty unit for a quick repair or exchange.

📞 Get in Touch

• 📧 Email: sales@autolectronix.co.za

• 📞 Phone: +27 31 700 1420

• 📍 Address: Unit 4 Lubex House, 4 Ivy Road, New Germany, KZN

We ship nationwide and support fast courier services for both incoming and outgoing modules. Bulk orders and fleet discounts available upon request.