OEM Rubber Suspension Bump Stops Factory

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Custom Suspension Rubber Buffer Manufacturers

Business For 17 Years
ABOUT LIANJUN
Anhui Lianjun Rubber Technology Co., LTD., formerly Wenzhou Lianjun Vehicle Parts Co., LTD., was founded in 2009, referred to as "Lianjun Rubber". Lianjun Rubber is located in Ningguo city, Anhui province—automobile NVH rubber damper production base, the factory covers an area of 13,000 square meters, close to Hangzhou city (less than 100km).Lianjun Rubber focusing on NVH rubber damper elements of R&D, manufacturing and sales for Mercedes-Benz and BMW chassis systems. Anhui Lianjun Rubber Technology Co., LTD. is China custom Rubber Suspension Bump Stops Manufacturers and Suspension Rubber Buffer Factory, we offer Suspension Bump Stop for sale.Its main products are Engine mounts, Drive shaft support bearing, Transmission mounts, Support drive shaft, Sturt mounts, Bushing and other series of auto rubber material products, nearly 1000 specifications. Lianjun Rubber is committed...
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Rubber Buffer For Suspension Industry knowledge

Anhui Lianjun Rubber Technology Co., LTD. is a China-based manufacturer of NVH rubber damper elements for Mercedes-Benz and BMW chassis systems. Our Suspension Rubber Buffer range covers suspension rubber buffers, bump stops and compression cushions matched to specific OE part numbers for S-Class, C-Class, CLK, E-Class, GLK, SLK and legacy W126/C126/S124 platforms.

The Ningguo production site covers 13,000 square meters and supports nearly 1,000 product specifications across engine mounts, strut mounts, bushings, transmission mounts, driveshaft supports and suspension buffers. That allows us to support a complete chassis service package under one Products program, rather than treating the suspension buffer as a one-off replacement part.

OEM-Matched Suspension Buffer Range

We position the range around direct-replacement OE matching. Each buffer is developed for the specific compression travel, mounting profile and damper assembly of the target chassis. The following profiles are available within the category:

Model code Vehicle application OE reference Fitment note
LJ-032 Mercedes-Benz S-Class W140 1991–1998, W220 1998–2005, W221 2005–2013 1403250184 Compression stop for strut and damper assemblies
LJ-030 Mercedes-Benz W140 S-Class S280–S600 / 300 SE, SEL, S320 1991–1999 1403250384 Direct replacement for original bump stop profile
LJ-031 W140 S-Class 1991–1998; C140 S-Class Coupe 1992–1999 1403250484 Impact protection during full compression
LJ-029 Mercedes-Benz 380SEC C126 1263210784 Classic chassis buffer
LJ-028 Mercedes-Benz W126 1263210984 Front suspension bump stop cushion
LJ-073 W126, C126, S124 1263211084 Suspension buffer for axle compression control
LJ-055 C / CLK / E / GLK / SLK 2103250184 Widely applied buffer profile
LJ-054 C, CLK, E, GLK & SLK 2103250284 Rear suspension rubber buffer replacement
LJ-033 C, CLK, E, GLK & SLK 2103250384 Shock-absorbing rear suspension buffer
LJ-034 C, CLK, E, GLK & SLK 2103250484 Smooth-ride rear suspension buffer
LJ-035 C, CLK, E, GLK & SLK 2103250584 High-performance rear suspension buffer
LJ-205 C, CLK, E & SLK 2103210184 Durable rear suspension buffer profile

Application Fit and Working Conditions

Suspension rubber buffers work as the final compression element between the damper, spring seat and chassis. Under heavy load, rough road input or full suspension travel, they absorb impact energy and prevent metal-to-metal contact that would otherwise damage the shock absorber, spring or top mount.

  • Front and rear axle bump stops for strut, coil spring and damper assemblies
  • Heavy-load and uneven-road applications where suspension compression is frequent
  • Noise, vibration and harshness control during suspension bottoming
  • Protection of shock absorbers, springs, strut mounts and surrounding chassis hardware
  • Classic and later Mercedes-Benz platforms where OE profile retention is critical

The selected rubber must withstand repeated compression, temperature variation, road chemicals and long static load without cracking or taking a permanent set. Our buffers use high-elasticity rubber formulated for wear resistance, compression recovery and aging resistance.

Critical Specifications for Correct Selection

We confirm the following parameters when preparing a suspension buffer proposal:

  • OE part number and vehicle platform
  • Body profile, internal bore, mounting neck and retaining groove geometry
  • Free length and compressed working height
  • Rubber durometer range and compression-deflection characteristics
  • Front or rear position and axle-load condition
  • Existing damper rod diameter or spring seat interface where applicable

Customization and Configuration Approach

We configure each order from the OE number, a sample part or a technical drawing. The R&D center supports customized services for different molds, allowing us to address non-standard combinations of profile, hardness and mounting detail when a standard OE cross-reference is not sufficient.

  • OE cross-reference and vehicle model confirmation
  • Sample or drawing evaluation before tooling confirmation
  • Material hardness and compression-load adjustment where required
  • Customer-specific packaging, labeling and private-label options
  • Pre-production sample approval for visible quality and fit

Quality Assurance and Production Scope

Production control focuses on dimensional fit, material consistency, molding integrity and part finish. Each item is managed by OE reference and internal model code, allowing traceability from raw material through final inspection. We provide free samples so procurement and engineering teams can verify form, hardness and installation fit before series delivery.

Our factory supports stable large-scale production and delivery capability. The 13,000-square-meter facility is organized for both high-volume OE-matched profiles and smaller customized batch requirements.

Installation and Maintenance Considerations

The buffer is designed as a direct replacement, meaning no modification is normally required during installation. It mounts into the damper rod, spring seat or retaining groove exactly as the original part. Replacement is appropriate when the existing buffer is cracked, collapsed, missing, swollen or shows permanent compression set.

For W220/W221 and C/CLK/E/GLK/SLK chassis work, we recommend inspecting related suspension bushings and strut mounts during the same service interval. Replacing the buffer together with worn companion parts helps restore consistent suspension travel and NVH behavior.

Information We Use to Configure Your Solution

The following project inputs allow us to prepare an accurate configuration and quotation:

  • Target vehicle and OE number — chassis model, year range and original part reference
  • Sample or original part — a marked sample or dimensioned drawing speeds confirmation
  • Front or rear position — verifies strut, damper or spring-seat application
  • Required volume — sample, trial or annual quantity drives production and packaging planning
  • Branding and packing requirements — neutral, private label or customer-specific marking
  • Delivery destination and documents — export packing and documentation needs are included in the proposal

Packaging, Delivery and After-Sales Support

We support the project from pre-sales evaluation through manufacturing and after-sales service. Free samples are provided for visible quality and secure cooperation. Delivery planning is based on the agreed order quantity, production schedule and customs documentation required for each destination.

Our suspension buffer products sell in the domestic market and export to multiple countries and regions. The same quality and service approach is applied whether the order is a small evaluation batch or a continuing series supply program.

Frequently Asked Questions

Which Mercedes-Benz models are covered by these suspension rubber buffers?

Our range covers Mercedes-Benz W140, C140, W220, W221, W126, C126, S124 and C/CLK/E/GLK/SLK applications. The correct item is confirmed from the vehicle OE number and axle position.

Can you supply according to OE number only?

Yes. We use the OE reference as the primary matching key and verify it against the vehicle application, sample or drawing where available.

Do you provide samples before a bulk order?

We provide free samples so you can evaluate part form, hardness, installation fit and finish before series delivery is arranged.

Are these buffers direct replacements?

Yes. They are developed as direct replacement parts that follow the original mounting profile and installation method without modification.

Can you support private labeling or customer-specific packing?

We include customer-specific branding, neutral packing and labeling requirements in the configuration and quotation. Details are confirmed before production.

What information do I need to provide for a proposal?

Provide the OE number, vehicle model, front or rear position, quantity and any packaging or document requirements. A sample or drawing is helpful for non-standard fitment confirmation.