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Among suspension wear parts, the strut bump stop handles one of the least visible but most repetitive jobs on the front axle: absorbing the final stage of suspension compression. OE number 55326-1E000 is a frequently requested Hyundai reference among aftermarket distributors, importers, and suspension rebuilders. Bonpora supplies this part under No. 4110235 as a polyurethane strut bump stop, size Φ11 x Φ54.1 x 110.5 mm, with OEM and custom design support for buyers who need original-referenced or tailored replacement parts. This guide outlines the product, its fitment context, and the sourcing routes trade buyers use most.
A strut bump stop — sometimes called a jounce bumper or suspension bump stop — mounts on the damper rod of a strut assembly, typically inside or beside the dust cover. During ordinary driving it never makes contact. It only engages when the suspension compresses past its designed travel: a deep pothole, an overloaded trunk, a speed bump taken too quickly, or a hard cornering event on a loaded axle.
When the stop is missing or crumbled, the strut reaches metal-to-metal travel. Workshops know the symptoms well: a sharp clunk over sharp inputs, accelerated seal and rod wear on the damper, and a harsh ride that new shock absorbers alone cannot fix. Because bump stops cost a fraction of a strut cartridge, replacing them during strut service is inexpensive protection for the more expensive component — one reason distributors stock them alongside shock absorber parts.
The table below lists the main parameters of Bonpora No. 4110235, the replacement part matched to OE 55326-1E000.
| Parameter | Value |
|---|---|
| Product Name | Strut Bump Stop |
| OE Reference | 55326-1E000 |
| Bonpora No. | 4110235 |
| Fitment | Hyundai |
| Size | Φ11 x Φ54.1 x 110.5 mm |
| Material | Polyurethane |
| Country of Origin | China |
| Warranty | 1 Year |
| Delivery Time | 15-30 Days |
| Packaging | Neutral Export Packaging |
| Custom Service | OEM & Custom Design Support |
Three dimensions deserve the closest attention during cross-referencing: the rod hole diameter (11 mm), the outer diameter (54.1 mm), and the free height (110.5 mm). This is a relatively long stop, so height matters even more than usual — a part that is shorter or taller than the original engages earlier or later than intended and changes how the suspension feels at full compression.
OE 55326-1E000 belongs to the 55326 parts group, which Hyundai parts catalogs use for suspension bump stoppers. The 1E suffix is commonly associated with the Accent model line and its platform-sharing sibling models within the Hyundai-Kia family. Because one platform family can cover several models, trim levels, and model years across both brands, fitment should always be verified rather than assumed. Trade buyers typically confirm in one of three ways:
Different buyer profiles approach the same product from different angles, and their search habits reflect it.
Wholesalers and catalog-driven distributors usually search by the OE reference itself — 55326-1E000 bump stop or 55326-1E000 supplier. This route gives the tightest match because the part number ties directly to tooling and dimensional records. When sending an OE number, include the target quantity and any packaging requirements so the supplier can confirm mold availability and quote in one round.
Repair chains and regional distributors tend to search vehicle-first: Hyundai bump stop, Hyundai suspension bump stop, or a model-level phrase such as bump stop for Accent. Vehicle-based searching works well, but within one platform family it can surface several similar stops. Confirming the OE number or the three key dimensions before ordering prevents shipping a part that looks correct but engages at the wrong point of travel.
Suspension assemblers and engineering distributors sometimes work in reverse: they hold dimensions and material requirements but no OE reference. In that case, quote the three key dimensions and the material (polyurethane, hardness if known). The factory can match an existing mold or, if nothing fits, open a new one. The jounce bumper and bump stop catalog from Bonpora covers the standard range, and unmolded sizes move through the custom program.
Brands and larger distributors often combine both approaches: a standard reference part with private-label packaging, or a modified design with adjusted hardness or geometry. Bonpora supports OEM & custom design service — from drawings or physical samples — including material tuning and branded export packaging. The custom workflow is described on the custom parts page.
Bump stops operate in one of the harshest zones of the suspension: repeated high-strain compression, exposure to water, road salt, and grit, plus wide temperature swings. Conventional rubber stops harden and crack with age, and a split bump stop is one of the most common workshop findings during strut replacement on higher-mileage vehicles.
Polyurethane microcellular foam behaves differently. Its closed-cell structure compresses progressively and recovers without permanent set, and it resists aging, ozone, and temperature extremes better than standard rubber compounds. For the buyer this translates into two practical benefits: longer shelf life in the warehouse, and damping behavior that stays consistent across the service life of the part. Bonpora applies the same material family across its shock absorber parts range, which simplifies sourcing when a distributor consolidates suspension wear parts with one factory.
Bonpora manufactures under an IATF 16949 quality system. For bump stop production this covers, in practice: incoming material verification for the polyurethane systems, in-process control of foaming parameters, and dimensional inspection of finished parts against the mold specification. Batch samples are checked for hardness and compression behavior so that replacement batches behave consistently with earlier deliveries.
The part is supplied with a 1-year warranty. As with any suspension component, the warranty covers manufacturing defects; applying the part to the correct fitment remains the responsibility of the buyer — one more reason the OE-number verification step above matters.
Standard supply uses neutral export packaging, which suits distributors who re-box under their own brand. Each stop is bagged and cartoned to prevent compression damage in transit; custom packaging and logo printing are available within the OEM program. Production and delivery take 15-30 days depending on order size and season, and mixed loading with other suspension references is possible for container programs.
The reference sits in the Hyundai 55326 bump stopper group, and the 1E suffix is commonly associated with the Accent model line and related platform-sharing models. Because fitment spans several models and model years, we recommend confirming by OE number, dimensions (Φ11 x Φ54.1 x 110.5 mm), or VIN before ordering. Send the reference and our team will check it against mold records.
Yes. Existing molds cover the standard range; if your requirement differs in size, hardness, or geometry, the custom program can develop the part from a drawing or a physical sample. Mold opening and sampling timelines are confirmed case by case.
Standard catalog parts are available in distributor-friendly quantities, and production plus delivery typically run 15-30 days. Exact MOQ depends on the reference and packaging choice — neutral export packaging ships fastest, while private-label packaging adds production time.
Start with the three key dimensions: rod hole diameter, outer diameter, and free height. Then compare the foam texture and the mounting method (through-rod versus cup type). If you send a sample or a dimensional drawing, the factory will confirm the match before quotation.
For pricing on Bonpora No. 4110235 (OE 55326-1E000), send the OE number, target quantity, and destination port to our sales team. OEM and custom design inquiries are welcome — include a drawing or sample description and we will respond with mold feasibility, unit pricing, and delivery terms for your market.
