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Automotive aftermarket buyers frequently search for 6Q0512131C when sourcing replacement suspension bump stops for VAG group vehicles. This rubber strut bump stop is a small but critical suspension component. It limits excessive compression of the shock absorber, protects the strut assembly from hard impact damage, and cushions extreme wheel travel on rough roads.
Many importers and distributors have common questions: which vehicles fit 6Q0512131C? What is the difference between 6Q0512131C and 6Q0512131B? What are the typical failure symptoms? How to confirm the correct part number before ordering. This buying guide clarifies these points to help global purchasers avoid wrong-part shipping errors.
6Q0512131C is the OE part number for front strut bump stop used on multiple VAG platform vehicles. It is installed inside the strut boot, working as a buffer limiter. Under heavy compression, the bump stop absorbs impact force and prevents metal-to-metal contact inside the shock absorber. Worn or cracked bump stops will accelerate shock absorber, strut mount and bearing damage.
6Q0512131C fits selected VW, Audi, Seat and Skoda models built on the PQ24 / PQ25 platform:
Volkswagen Polo (9N / 6R)
Audi A1 (8X)
Seat Ibiza (6L / 6J), Seat Cordoba (6L)
Skoda Fabia (6Y / 5J), Skoda Roomster (5J)
Note: Always cross-check vehicle VIN, production year and original part number before bulk orders. Some facelift models may use updated part supersession.
6Q0512131B is the earlier OE version, while 6Q0512131C is the updated supersession part.
6Q0512131B: Original early production version, older rubber compound formula. This part has been superseded by 6Q0512131C by the OEM.
6Q0512131C: Revised updated version, improved rubber formulation for better anti-aging and compression resistance. Dimension and mounting interface remain interchangeable with 6Q0512131B for most applications.
Important note: Even though they are interchangeable in most cases, some strict repair workshops and OEM customers require the latest part number 6Q0512131C. Buyers should confirm local market acceptance before purchasing.
The bump stop is made of foam / rubber compound. It gradually degrades under repeated compression, heat and road contaminants:
Rubber aging, cracking, crumbling or material powdering;
Loss of buffer elasticity, no shock limiting protection;
Metallic knocking noise when driving over deep potholes or heavy compression;
Accelerated failure of shock absorber, strut mount and strut bearing.
Many technicians overlook bump stop inspection. A failed bump stop can cause premature shock absorber damage and extra warranty claims for aftermarket sellers.
Cross verify VIN, car model, year and original part number;
Confirm whether your market accepts 6Q0512131C as replacement for old 6Q0512131B;
Check material quality: UV resistance, anti-aging rubber formula, dimension tolerance;
Confirm MOQ, lead time, packaging and after-sales policy for defective goods.
Bonpora supplies high quality OE replacement 6Q0512131C strut bump stop for global aftermarket distributors. View our product page: https://www.bonporaparts.com/en/auto-parts/oe-6q0512131c-strut-bump-stop-vw-audi-seat-skoda.html. Contact us for wholesale pricing and sample support.
A: In most cases yes. 6Q0512131C is OEM superseded version of 6Q0512131B. The mounting size and installation interface are compatible. Please confirm local market requirements before purchase.
A: It fits VW Polo, Audi A1, Seat Ibiza/Cordoba, Skoda Fabia/Roomster on PQ24 / PQ25 platform. Always match VIN and original part number to avoid wrong selection.
A: Aging bump stop will lose elasticity, crack or crumble. You may hear impact noise over big bumps. Without buffer protection, shock absorber and strut mount will wear out quickly.
A: Yes. Bonpora provides OE replacement 6Q0512131C strut bump stop. We support samples, bulk wholesale and custom packaging for global aftermarket importers and distributors.
Every suspension system depends on small components that rarely get attention until something goes wrong. The strut bump stop is one of them. This guide explains everything a buyer, distributor, or workshop needs to know about the OE 6Q0512131C strut bump stop supplied by Bonpora, including specifications, vehicle fitment, material advantages, sourcing tips, and custom manufacturing options.
The 6Q0512131C is a front strut bump stop, also called a suspension buffer or jounce bumper, originally fitted to Volkswagen platform vehicles and shared across Audi, Seat, and Skoda models built on the same chassis. It mounts on the shock absorber piston rod inside the strut assembly. When the suspension compresses fully, for example over a deep pothole or a heavy load, the bump stop compresses first and cushions the impact between the strut body and the top mount.
A good bump stop performs three jobs at the same time. First, it prevents metal-to-metal contact inside the strut, which would otherwise destroy the damper seals and the top mount. Second, it absorbs harsh secondary impacts so the cabin stays comfortable even when the wheel meets a sharp edge. Third, it protects the coil spring and surrounding components from over-travel. When the bump stop crumbles or degrades, drivers usually notice knocking noises over bumps, a harsher ride, and accelerated wear on the shock absorber itself. Replacing a worn bump stop costs a fraction of replacing a complete strut assembly, which is why workshops often recommend replacing it together with the shock absorber.
Bonpora supplies this bump stop under part number 4110009C with full dimensional control and consistent material formulation. The table below lists the key parameters for purchasing and quality checking.
| Item | Specification |
|---|---|
| Product Name | Strut Bump Stop |
| Bonpora Part No. | 4110009C |
| OE Number | 6Q0512131C |
| Fitment | Audi / Seat / Skoda / Volkswagen |
| Size | Diameter 18 mm x 57 mm, Height 113.5 mm |
| Material | Polyurethane (PU) |
| Country of Origin | China |
| Warranty | 1 Year |
| Delivery Time | 15 to 30 Days |
| Packaging | Neutral Export Packaging |
| Custom Service | OEM and Custom Design Support |
The 18 mm center hole diameter matches the shock absorber piston rod, while the 57 mm outer diameter and 113.5 mm height follow the original design, so no modification is needed during installation.
The 6Q0 prefix of this OE number belongs to the VW Polo platform family. Because Audi, Seat, and Skoda share many chassis components within the Volkswagen Group, the same bump stop serves several nameplates. Common applications include the VW Polo (9N series) and platform-related Seat and Skoda compact models. Importers should always confirm fitment by checking the OE number in a parts catalog such as ETKA or TecDoc rather than relying on the model name alone, because the same vehicle generation can use different bump stop variants depending on suspension equipment.
Professional buyers usually approach sourcing in one of three ways. Some search by OE number, entering terms like 6Q0512131C bump stop or 6Q0512131C supplier directly into a search engine, because the OE number guarantees the exact geometry. Others search by vehicle and part type, for example Polo 9N bump stop or Audi Seat Skoda suspension buffer, when they do not have the OE number at hand. A third group searches by supplier intent, such as polyurethane bump stop manufacturer in China or strut bump stop wholesale, when the goal is to establish a stable supply chain rather than buy one piece. Bonpora product pages are structured to serve all three search paths, and our shock absorber parts catalog groups bump stops, mounts, and related components by system for fast cross-referencing.
Original replacement bump stops are often made of microcellular foam rubber, which works well when new but loses elasticity over time. Heat cycles, ozone exposure, and repeated compression cause rubber to harden, crack, and finally crumble into pieces that drop into the strut. Bonpora manufactures this bump stop from polyurethane, a material with clear advantages for this application.
Higher tear strength: polyurethane resists splitting under sharp compression peaks, which extends service life on rough roads.
Better aging resistance: PU tolerates ozone, oil mist, and temperature swings far better than conventional rubber compounds.
Consistent density: controlled foaming gives each batch the same progressive compression curve, so damping behavior stays predictable.
Stable dimensions: lower creep means the bump stop keeps its working height longer and protects the damper for the full service interval.
For distributors, polyurethane also reduces warranty claims related to premature disintegration, one of the most common complaints for low-grade rubber bump stops. More material options can be found in our polyurethane bump stops range, which covers European, Asian, and American applications.
Beyond catalog parts, Bonpora supports full OEM and custom design service. Many importers need bump stops for vehicles that are no longer covered by the original supplier, or they need modified dimensions for tuned suspensions, commercial variants, or special equipment. The process is straightforward: send a sample, a drawing, or simply the OE number and key dimensions. Our engineering team confirms material hardness, foaming density, and geometry, then produces samples for approval before batch production. Typical custom projects move from inquiry to sample within two to three weeks. Buyers who need dedicated packaging, private labels, or bundle kits with dust boots and strut mounts can also request tailored solutions through our custom parts service page.
Every production batch passes dimensional inspection and compression testing before packing. Parts ship in neutral export packaging, which means no third-party branding appears on the boxes, an important point for importers who sell under their own label. The standard warranty period is one year, covering material and manufacturing defects. Delivery time is normally 15 to 30 days depending on order quantity and production schedule, and mixed containers with other suspension components are welcome. Flexible order quantities make it easy for new customers to test the market before committing to larger volumes.
Bump stops rarely fail without warning. Watch for these symptoms during service inspections: a hollow clunk when driving over speed bumps or potholes, visible rubber or PU debris inside the strut boot, uneven tire wear caused by changing suspension geometry, and rebound noises from the front axle after the vehicle crosses a dip. If the strut boot is torn, moisture and dirt reach the bump stop and accelerate its aging, so the boot should be replaced at the same time.
The bump stop slides over the shock absorber piston rod and sits between the dust boot and the top mount plate. Before assembly, clean the piston rod, check the rod surface for scratches, and lightly apply the grease specified by the shock absorber manufacturer. Make sure the bump stop seats fully and is not twisted, because a twisted buffer causes asymmetric compression and early cracking. Reassemble the strut with the spring compressor according to standard procedure, torque the top mount nut to the vehicle specification, and finish with a wheel alignment if the strut was removed completely. The whole job typically takes less than one hour per side for an experienced technician.
Because the 6Q0512131C serves several Volkswagen Group models, it is a high runner in the European car park. Distributors serving the VW, Audi, Seat, and Skoda aftermarket usually keep this reference in permanent stock, together with matching strut mounts and dust boots, so a complete front suspension service kit can be shipped from a single supplier. Bonpora supports consolidated orders and mixed containers, which reduces freight cost per unit and simplifies customs handling.
It fits Volkswagen Polo platform models and related Audi, Seat, and Skoda vehicles that share the same front strut design. Always verify by OE number 6Q0512131C in your parts catalog before ordering, because suspension variants within one model range may use different parts.
It is strongly recommended. A new shock absorber will reach full travel more often, and an old hardened bump stop will wear out quickly and transfer noise into the cabin. Replacing both at the same time saves labor cost and prevents a second disassembly.
Yes. Neutral export packaging and flexible minimum order quantities allow distributors and workshops to start with trial volumes. Contact our sales team with the part number 4110009C or OE 6Q0512131C for a quotation.
Yes. Send the sample or a drawing with key dimensions and material requirements. We confirm the specification, produce samples for approval, and then arrange batch production, typically with 15 to 30 days delivery after order confirmation.
Need 6Q0512131C strut bump stops in bulk
Bonpora supplies polyurethane suspension buffers for VW, Audi, Seat, and Skoda with OEM and custom design support, 1 year warranty, and 15 to 30 days delivery.
