Basic Info

• OE Part No.: 318 479 009

• Brand: SACHS (ZF Group Germany original suspension brand)

• Cross Reference OE: MAN 81437016072, DAF 1707478, Sinotruk WG9925680012, Eurotec 95007639

• Product Type: Rear Axle Double-Tube Hydraulic Telescopic Shock Absorber

• Applicable Vehicles: Sinotruk Sitrak, FAW J7, MAN TGS/TGX, DAF CF/XF, Iveco Stralis heavy haul tractors

• Matching Suspension: Rear leaf spring / air suspension auxiliary damping assembly

• Mounting Method: Top pin mounting, bottom rubber eye bushing

• Material: High-strength seamless steel cylinder barrel, hard chrome plated piston rod, forged end lugs, HNBR high temperature resistant sealing system, anti-foam high viscosity damping fluid

• Net Weight: approx 4.15kg (reference value)

• Standard Damping System: Twin-tube hydraulic damping, compression & rebound dual-stage damping valve

• Matching Components: Rear leaf spring, suspension bracket, rubber bushings, mounting bolts

• Function: Absorb rear axle road impact vibration, restrain frame bounce, reduce suspension parts fatigue damage, improve driving stability and comfort

• Category: Heavy Truck Suspension Rear Axle Damping System Repair Spare Parts

Material & Advantages

1. Thick seamless high tensile steel cylinder body, anti-deformation under long-term heavy-load impact, anti-corrosion electrophoretic coating

2. Piston rod hard chrome superfinishing, scratch resistant, low friction, effectively avoid seal cutting and oil leakage

3. Multi-stage composite damping valve, independent compression and rebound damping adjustment, stable damping force under full-load / empty load switching

4. Imported HNBR multi-lip integrated sealing assembly, resistant to high temperature, dust and mud splash, long service life without frequent oil leakage

5. Built-in anti-foam hydraulic oil, prevent damping force attenuation caused by oil aeration during continuous bumpy driving

6. Standard OEM mounting hole spacing, pin and eye dimension, direct bolt-on installation without modification during overhaul

7. Optimized heavy-load damping curve, adapt to long-distance full-load highway logistics and mountain rough road transportation conditions

Application Scenarios

• Replace oil-leaking, damping-failure, noisy original rear shock absorber marked 318 479 009 for heavy tractors

• Fix vehicle faults: continuous rear frame bouncing, unstable high-speed driving, suspension abnormal knocking noise, rapid leaf spring fatigue fracture

• Complete rear suspension overall overhaul and regular maintenance for logistics heavy truck fleets

• Assemble matched rubber bushings and mounting bolts following official SACHS suspension assembly standards; replace shock absorbers in pairs on left and right rear axles for balanced damping

Supply & After-sale

• MOQ: 1 piece

• Warranty: 6–12 months (exclude collision rod scratch, mud corrosion seal damage, overload impact and natural aging abrasion)

• Packaging: Independent shockproof carton + plastic protective sleeve for piston rod, prevent chrome surface scratch and cylinder deformation

• Remarks: Confirm vehicle rear suspension model before ordering; it is recommended to replace left and right rear shock absorbers as a pair to avoid inconsistent damping force on both sides

Gearboxes assembly include brand ZF, Eaton, FAST, Allison, DONGFENG, DC, Benz, volvo, HOWO, WLY etc. Gearboxes parts includegear, synchronizer, PTO, housing, bearings, shaft, top cover, sensors, wireness, repair kits... etc.

Our products have been exported to more than 50 countries and regions such as Korea, Chile, Russia, Kazakhstan, USA, Ecuador, Turkey, Iran, Africa, Latin America, etc., and have been unanimously recognized by customers.

In the future, we will be committed to creating higher-end quality and more intimate service. And a more comfortable customer experience to build Yongliwei company into an auto parts supplier with excellent corporate culture, scientific development concept and continuous innovation ability.

Shiyan Yongliwei Industry and Trading Co., Ltd. is a modern enterprise integrating design, development, production and sales of gearbox assembly and gearbox parts.

Our company was founded in Hubei province, China, and has been specialized the truck gearboxes in Chinese offline market for 21 years .Our parts are the leader of gearboxes area in the China now.

Our company was set up in the largest truck parts production base in the world –Shiyan city, Hubei, China, to meet the demand for products in the Asia and South American markets, a professional international trade sales team was born in Hubei in 2021.

Shiyan Yongliwei is focusing on creating high quality, high technology and high standard gearboxes and its parts.

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