Do you provide genuine OEM parts?

Yes. We can provide genuine parts, OEM parts, and high-quality aftermarket parts according to customer requirements and budget.

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Yes. We regularly participate in domestic and international automotive and truck parts exhibitions, helping us stay connected with global customers and industry developments.

How many years of export experience do you have?

We have extensive experience serving customers in South America, the Middle East, Africa, and Central Asia, supplying truck parts, trailer parts, and customized OEM solutions.

Are you a manufacturer or a trading company?

We cooperate directly with authorized manufacturers and OEM factories. With strong supply chain resources and export experience, we provide one-stop procurement solutions for heavy truck and trailer spare parts.

Who is Jinan Wopu Auto Parts Co., Ltd.?

Jinan Wopu Auto Parts Co., Ltd. is a professional supplier of heavy truck parts and trailer components in China. We specialize in chassis parts, truck axle assemblies, trailer axle assemblies, engine assemblies, transmission assemblies, and spare parts for SINOTRUK, SHACMAN, FAW, FOTON, HONGYAN, and Beijing Benz trucks.

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LOCATION : Home - Products - Other Truck Parts - BEIBEN NG80 - Leaf Spring Central Bolt M18x320mm / M18x340mm / M18x360mm / M18x380mm / M18x400mm for Mercedes-Benz NG SK & Beiben NG80

Leaf Spring Central Bolt M18x320mm / M18x340mm / M18x360mm / M18x380mm / M18x400mm for Mercedes-Benz NG SK & Beiben NG80

✔ Leaf Spring Central Bolt / Spring Pack Center Bolt
✔ Available Sizes: M18x320mm, M18x340mm, M18x360mm, M18x380mm, M18x400mm
✔ Compatible with Mercedes-Benz NG Series
✔ Compatible with Mercedes-Benz SK Series
✔ Compatible with Beiben NG80 Heavy Trucks
✔ Secures and Aligns Leaf Spring Pack Assembly
✔ High-Tensile Alloy Steel Construction
✔ Heat-Treated for Maximum Strength and Durability
✔ Excellent Resistance to Vibration and Heavy Loads
✔ OEM Standard Direct Replacement Component

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Product Description

Product Introduction

The Leaf Spring Central Bolt is a critical fastening component used in Mercedes-Benz NG, SK series and Beiben NG80 trucks. Installed through the center of the leaf spring pack, it holds all spring leaves together as a complete assembly and serves as a locating pin between the spring pack and axle seat, preventing movement during vehicle operation.

Manufactured according to OEM standards, these center bolts feature precision-machined threads, high-strength alloy steel material, and superior fatigue resistance. They are widely used for suspension overhaul, leaf spring rebuilding, and commercial truck maintenance applications.

Technical Specifications

Item	Specification
Product Name	Leaf Spring Central Bolt
Size Options	M18x320mm / M18x340mm / M18x360mm / M18x380mm / M18x400mm
Vehicle Brand	Mercedes-Benz / Beiben
Compatible Models	NG / SK / NG80
System	Chassis & Suspension System
Component Type	Leaf Spring Fastening Bolt
Position	Center of Leaf Spring Pack
Material	High-Tensile Alloy Steel
Strength Grade	10.9 / 12.9 Available
Manufacturing Process	Forging + Heat Treatment + Thread Rolling
Function	Clamps and Locates Leaf Spring Assembly
Surface Treatment	Zinc Plated / Anti-Corrosion Coating
Condition	Brand New
OEM Standard	Yes
Quality Test	Thread / Hardness / Tensile Strength Tested
Installation	OEM Direct Replacement
Packaging	Export Standard Packaging
Origin	China

Vehicle Fitment

Vehicle Brand	Compatible Models
Mercedes-Benz	NG Series
Mercedes-Benz	SK Series
Beiben	NG80

Payment & Shipping

Category	Options
Payment Methods	T/T, PayPal, Western Union, MoneyGram, L/C, Alibaba Trade Assurance
Shipping Methods	DHL, FedEx, UPS, TNT
Delivery Time	3–7 Days (Express), 20–45 Days (Sea Freight)
Trade Terms	EXW, FOB, CIF, CFR, DDP
Shipping Scope	Worldwide Shipping

Related Products Categories

Engine Parts System

Section/System	Common Spare Parts
Cylinder Block & Cylinder Head	Cylinder Block, Cylinder Head, Cylinder Liner, Piston, Piston Ring, Cylinder Head Gasket
Crankshaft System	Crankshaft, Connecting Rod, Bearing, Thrust Washer
Valve Train	Intake Valve, Exhaust Valve, Camshaft, Rocker Arm, Valve Spring
Fuel System	Injector, Fuel Pump, Fuel Filter
Cooling System	Water Pump, Thermostat, Radiator
Lubrication System	Oil Pump, Oil Cooler

Transmission & Drivetrain Parts

Section/System	Common Spare Parts
Clutch System	Clutch Disc, Pressure Plate, Release Bearing
Gearbox System	Gearbox Assembly, Gear Set, Bearing, Seal
Differential System	Differential Assembly, Crown Wheel & Pinion, Differential Bearing
Driveshaft System	Propeller Shaft, Universal Joint, Drive Shaft Center Bearing, Flange Fork, Slip Yoke, Center Support
Axle System	Axle Shaft, Wheel Hub, Planetary Gear, Side Gear

Chassis & Suspension Parts

Section/System	Common Spare Parts
Front Axle	Steering Knuckle, Kingpin Kit, Tie Rod, Wheel Hub
Rear Axle	Axle Housing, Hub, Differential Housing
Suspension System	Leaf Spring Central Bolt, Leaf Spring, Leaf Spring Bracket, Leaf Spring Seat, Torque Rod, Balance Shaft, Spring Shackle, Suspension Saddle, Console Bracket, Shock Absorber, U-bolt
Steering System	Steering Gearbox, Drag Link, Steering Pump
Brake System	Brake Drum, Brake Shoe, Brake Chamber, Brake Valve, Brake Caliper, Slack Adjuster

Cabin & Body Parts

Section/System	Common Spare Parts
Cabin Assembly	Cabin Body, Mounting, Lock System
Electrical System	Headlamp, Tail Lamp, Wiring Harness
Interior	Dashboard, Switch Panel, Instrument Cluster
Exterior	Bumper, Grille, Fender, Step