Introduction

5603200306 is an OEM-standard rear leaf spring assembly exclusively designed for BEIBEN heavy-duty truck rear suspension systems. As a core load-bearing and shock-absorbing component of the chassis, it undertakes main vehicle load bearing, road vibration buffering and chassis stability maintenance during full-load transportation and complex road driving. Manufactured in strict accordance with BEIBEN original factory specifications and heavy-duty commercial vehicle industry standards, this leaf spring adopts high-quality spring steel and integral lamination heat treatment molding technology. It features strong toughness, excellent fatigue resistance and stable damping performance, effectively solving common faults such as chassis jitter, severe bumping, spring deformation and suspension sinking. It provides reliable load-bearing support and stable buffering effect for BEIBEN heavy trucks, ensuring long-term safe and stable driving under high-load and harsh working conditions.

Key Features

✅️Standard OEM Specification & Perfect BEIBEN Compatibility

With the exclusive part number 5603200306, this rear leaf spring fully conforms to original lamination quantity, overall radian, installation hole position and dimensional tolerance standards of BEIBEN heavy-duty truck rear suspension. It perfectly matches original spring pins, bushings and suspension brackets without secondary cutting, drilling or modification. It supports direct integral replacement, achieving 100% fitting accuracy and maintaining the original chassis suspension coordination and load-bearing balance.

✅️High-Quality Spring Steel Material & Super Load-Bearing Capacity

The leaf spring is made of high-purity high-strength spring steel raw material, adopting multi-layer lamination superimposed structure and integral compression molding process. With uniform internal texture and high structural density, it boasts ultra-strong compression resistance and load-bearing performance. It can stably bear long-term heavy-load gravity and instantaneous impact load, effectively avoiding suspension collapse, spring bending and overall deformation, fully meeting the heavy-duty operation demands of engineering and freight trucks.

✅️Professional Heat Treatment & Excellent Fatigue Resistance

Each spring steel plate undergoes strict integral quenching and tempering heat treatment and stress relief process. It eliminates internal processing stress, obtains excellent mechanical toughness and anti-fatigue performance. It adapts to long-term frequent vibration, reciprocating compression and alternating load impact, avoiding plate breakage, elastic failure and permanent deformation, greatly extending the service life of the rear suspension system.

✅️Precise Lamination Matching & Stable Damping Performance

Adopting precise lamination matching and radian calibration technology, each steel plate fits closely and bears force evenly without local stress concentration. It realizes gradual and stable vibration buffering and elastic reset, effectively reducing chassis jitter, body shaking and road bump feeling during driving. It significantly improves vehicle straight-line stability, cargo protection effect and overall driving comfort.

✅️Premium Surface Treatment & Strong Harsh Environment Adaptability

The surface of the leaf spring is treated with professional anti-rust painting and anti-corrosion strengthening process, with excellent wear resistance, oxidation resistance and erosion resistance. It effectively resists damage from dust, rainwater, sediment and humid saline-alkali environments in mining areas, construction sites and mountain roads. It maintains stable elastic performance and structural integrity for a long time with ultra-low failure rate.

✅️Strict Quality Inspection & High Comprehensive Cost Performance

Every finished 5603200306 rear leaf spring undergoes rigorous load-bearing test, elastic fatigue test, dimensional calibration and surface quality inspection to reach OEM quality standards. Featuring stable performance, strong durability and simple installation, it effectively reduces chassis suspension maintenance frequency and overall operating costs. It is a high-quality and cost-effective original replacement part for daily maintenance and overhaul of BEIBEN heavy truck rear suspension systems.

Detail

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Contact with clear photo of engine nameplate or chassis number:

Linda Zhang

Whatsapp:+86 176 6066 8410

EMAIL:sales16@chinatruck.cc