BS428X22 Transmission Piston Bushing ZL20-035002

Product Introduction

This ZL20-035002 BS428X22 transmission piston bushing is a precision inner sleeve component used inside wheel loader transmission. It matches the hydraulic piston assembly of the gearbox, serving as the sliding support guide for piston movement. It reduces friction during piston reciprocating motion, maintains piston coaxiality, stabilizes hydraulic pressure output for clutch engagement and disengagement, ensuring smooth gear shifting of the loader transmission.

The bushing is made of high-grade alloy steel, processed through turning, grinding and surface strengthening treatment. The inner and outer circular surfaces achieve high dimensional accuracy and low surface roughness, which minimizes wear and prevents oil leakage between mating parts. The pre-machined locating hole ensures accurate assembly positioning. The material features good hardness and impact resistance, adapting to repeated hydraulic impact and continuous vibration inside the transmission during long loading operations. It effectively avoids jamming and premature wear caused by metal friction.

Manufactured strictly in accordance with OEM dimensional standards, this transmission piston bushing can directly replace original spare parts without modification. We supply OEM equivalent and premium aftermarket quality grades. Every finished bushing undergoes dimensional inspection and surface quality check before shipment. Export-grade packaging and complete customs documents are available for overseas construction machinery repair shops and equipment distributors.

Key Features

• Part number: ZL20-035002, BS428X22 transmission piston bushing for wheel loader gearbox
• Alloy steel raw material, surface strengthening treatment, excellent wear resistance
• Precision grinding inner & outer circle, tight tolerance, stable matching clearance
• Pre-processed positioning hole for accurate assembly
• Low friction coefficient, reduces piston jamming risk, protects transmission shifting performance
• Strict dimension control, direct replacement without secondary machining
• In stock, factory direct export, mixed container loading available

Why Choose Our ZL20-035002 Transmission Piston Bushing

1. Professional Construction Machinery Transmission Parts Specialization

We specialize in full-range precision gearbox spare parts for wheel loaders. Our team masters transmission assembly tolerance and fitting requirements, providing accurate part matching and professional technical guidance for loader transmission overhaul projects.

2. Strict Machining & Dimensional Precision Control

All bushings are produced by precision turning and internal/external grinding. Each finished piece is measured with calipers to verify diameter, length and hole position, eliminating hidden risks such as dimension out of tolerance, poor roundness and surface defects.

3. Multiple Quality Grades for Global Market

We offer OEM equivalent and premium aftermarket versions to meet different procurement demands. OEM equivalent products match original structural performance and dimensions completely. The aftermarket option provides cost-effective replacement for regular fleet maintenance, both with stable quality guarantee.

4. Ready Stock & Fast Shipment

We maintain abundant spot inventory of ZL20-035002 transmission piston bushings. Products are sorted by part number for quick picking. We support shipment within 3–7 working days and mixed loading with other loader spare parts to cut logistics expenses.

5. Export-Grade Packaging & Full Set Documents

The piston bushing is packed with anti-rust oil and shockproof packaging in export cartons to avoid scratches and deformation during long ocean transport. Our foreign trade team provides complete customs documents including packing list, commercial invoice and inspection certificate for smooth import clearance.

6. Rich Global Export Service Experience

We serve worldwide construction machinery dealers and maintenance teams. We provide pre-sales part verification and responsive after-sales support, solving compatibility problems promptly and establishing long-term stable cooperative relationships.