ECS Tuning Billet Aluminium Power Steering/PS Pump Drive Pulley, Serpentine/Aux/Accessory Belt Upgrade Replacement - BMW M52/M54 E36 E46 E39 E53 X5 Z3 3 Series 5 Series - Hard Anodised

Billet Aluminium Steering Pump Drive Pulley Upgrade for BMW 3 Series and Z3

Stop cracked plastic ruining your day. This precision CNC milled and turned 6061-T6 billet aluminium steering pump drive pulley from ECS is a robust, long-term solution for the auxiliary belt system on popular BMW straight-six models. With a hardcoat anodised finish for excellent corrosion resistance, it is a straight swap for the brittle composite wheel that is known to fail with age and heat.

We use this pulley in our own workshop builds and customer cars. Feedback has been consistently positive for durability, fit and finish. It bolts up with the original fixings and runs on the standard serpentine belt, giving you OE-style fitment with motorsport-grade materials.

Why choose this alloy pulley

• 6061-T6 billet aluminium construction. Engineered for strength in high-heat engine bays.
• Hardcoat anodised surface. Excellent corrosion protection and a quality OEM-plus look.
• Direct bolt-on replacement. Uses factory belt length and OE hardware for hassle-free installation.
• Ideal preventative maintenance. Replace the fragile plastic wheel during steering pump or auxiliary belt service.
• Designed for daily road use, spirited driving, track days and drift builds that demand reliability.

Compatible BMW models

Engine codes: M52 and M54 inline six. Fits the following applications:

• BMW E36: 323i, 323is, 323ic 2.5 M52. 328i, 328is, 328ic 2.8 M52.
• BMW E46: 323i, 323Ci 2.5 M52. 325i, 325Ci, 325xi 2.5 M54. 328i, 328Ci 2.8 M52. 330i, 330Ci, 330xi 3.0 M54.
• BMW E39: 525i 2.5 M54. 528i 2.8 M52. 530i 3.0 M54.
• BMW E53 X5: 3.0 M54.
• BMW Z3: 2.5i 2.5 M54. 2.8 2.8 M52. 3.0i 3.0 M54.

Ideal time to install

Perfect when replacing a steering pump, tensioner, idler, or when refreshing the auxiliary drive belt. Swap out the ageing plastic pulley for a stronger alloy unit while access is easy.

Fitting service

Professional installation recommended. For expert fitting, contact MJ Modifications in Warwickshire for a quote. Email: info@mjmodifications.co.uk.

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