Nissan Qashqai X-Trail Front Strut Bump Stop OE 54050-HV10A | PU

The OE 54050-HV10A is the front coil spring bumper that Nissan dealer catalogs call Bumper Assy-Bound or Suspension Strut Bumper. It slides over the piston rod of the front strut and cushions the last millimeters of travel before metal-to-metal contact. Aftermarket catalogs list the same piece as front strut bump stop, jounce bumper or stop buffer. Bonpora molds this profile as part number 4110243 in micro-cellular polyurethane, with a 21 mm bore, a 58.4 mm outer diameter and a 104 mm free height. One vehicle needs two pieces, one per front strut. The part is produced in China, covered by a 1 year warranty, packed in neutral export packaging and shipped within 15 to 30 days, with OEM and custom design support for project buyers.

What makes this reference interesting is how widely it travels. The same buffer serves the Nissan Qashqai II (J11), the X-Trail III (T32), the US-market Rogue Sport and Rogue, and the Renault Kadjar, Koleos II and QM6 built on the shared alliance platform. Around the base number sits a web of sibling references: HV10A and HV10B, 4CL0A and 4CL0B, 6FR0A, 5HA0A and 5HA0B, plus 4BA0A and 9FL0A in trade interchange lists. The sections below sort out fitment, the number family, supplier measurement differences, and the kit-versus-piece question.

What the Front Bound Bumper Does

The bumper works together with the coil spring and the dust cover. Under normal load the spring carries the weight and the buffer never engages. When the wheel drops into a deep pothole or the vehicle runs fully loaded, the spring compresses toward coil-bind and the polyurethane bumper becomes the final cushion. Its micro-cellular structure compresses progressively and rebounds without permanent set, protecting the damper seal and the top mount. A cracked or crumbling bumper lets the strut top out hard, and the resulting knock is one of the noises most often misdiagnosed as a failed shock absorber.

Fitting Position and Quantity

All catalog sources agree on the axle: front only, one piece per side. The genuine dealer listing shows positions Left, Right and Front, and the US catalog entry for the Rogue Sport states a required quantity of 2. The same reference fits both sides, so warehouses stock one part instead of a mirrored pair. The rear axle of the same vehicles uses a different, much shorter buffer from the 55240 group with its own numbers, so a front or rear mix-up is the first thing to rule out when a quoted size looks wrong. Buyers comparing related front strut components will find the same left-and-right logic across the range.

Specifications of Bonpora 4110243

Seven Nameplates, One Buffer

Alliance platform sharing puts this bumper under more badges than most buyers expect. The Qashqai J11 and the X-Trail T32 were developed on the same modular floor as the Renault Kadjar, and the Koleos II is the sibling of the X-Trail produced with Renault Samsung in Korea. The Rogue Sport is the North American name of the Qashqai J11, and the Rogue is the North American X-Trail. For a distributor this means one stock line covers the service pools of several market names plus their van derivatives.

Production Windows Worth Checking

The EPC windows show how one body code split into build variants. In the Qashqai line the 1.2 DIG-T HRA2DDT cars ran to 04-2021 in the J11E series while the H5FT 1.2 appeared in the J11R series from 10-2015, and the 1.3 DIG-T HR13DDT joined from 08-2018. The X-Trail line carries separate windows for the T32, T32R and T32RR build codes and for engines moved between plants. None of these cuts change the bumper reference, but they matter when an inquiry gives only a year and an engine. The safe routine is to confirm by VIN or by reading the number off the old part before a shipment is booked.

Newer Generations Use Different Parts

Coverage ends where the platform changed. The Qashqai J12 from 2021 and the X-Trail T33 from 2022 use their own suspension references, and none of the numbers in this family should be quoted for them by year alone. Trade catalogs that stretch coverage toward 2024 refer to remaining J11 and T32 stock in some markets, not to the new generation. When an inquiry names a 2021 or later build, ask for the VIN before offering 54050-HV10A.

The 54050 Number Family

Nissan part numbers put the function up front: the 54050 group is the front spring bumper, and the letters behind it tie the piece to plant, market and revision. Suppliers handle it differently: some list HV10A as the anchor, others 4CL0B or 6FR0A, and the largest cross lists carry the whole set on one page. US dealer data shows one direct supersession inside the family: 54050-4CL0B is shown as replaced by 54050-6FR0A for the Rogue Sport. The table below should be read as one physical profile with several catalog doors.

Front 54050 or Rear 55240

A one-digit habit saves quotations: the front group starts 54050 and the rear group starts 55240. The T32 rear stop is a different shape altogether, about 68 mm long with a 70 mm width, filed under 55240-JD000 and 55240-JG000 with febi 103458 and Blue Print ADN180163 as its aftermarket twins. Inquiries that only say T32 bump stop should get one axle question before a price is sent, and the wider chassis and suspension parts range follows the same group-number logic.

Same Buffer, Different Rulers

Suppliers measure the same tapered profile in different places, so the catalog figures look scattered until they are lined up. The bore is stepped: about 21 mm at the base and about 26 mm at the upper step, which is why one supplier prints 21.5 and another prints 26 for the same hole. Heights cluster between 101.5 and 104 mm, with one Blue Print reference at 111 mm that likely includes the mounting collar in its reading. None of the figures is wrong; they are different rulers on one piece.

For ordering, the OE number stays the primary key and the dimension band becomes the check: a confirmed piece should read roughly 101 to 104 mm tall, 58 to 59 mm across, with a 21 mm base bore. Anything far outside that band belongs to another family and needs a re-check before an offer.

How Buyers Find This Part

Part type plus size

Searches like front strut bump stop 58 mm, PU jounce bumper 21 mm bore or bound bumper 104 mm land in this family. The height band between 101 and 104 mm is the fastest filter, because the rear piece of the same cars measures only 68 mm.

Part type plus OE number

Buyers who hold a number search 54050-HV10A bump stop, 54050-4CL0B equivalent or 6FR0A jounce bumper. Any of the family references leads to the same profile, so quotations should name the full cross set to be found.

Model plus part

Typical combinations are Nissan Qashqai J11 front bump stop, X-Trail T32 bound bumper, Rogue Sport jounce bumper and Kadjar front spring bumper. Model-based searches work, yet the production windows above explain why a VIN check belongs in the reply.

Supplier plus custom request

Project buyers with a sample or a drawing search custom PU bump stop manufacturer and OEM jounce bumper supplier. The same molding line that produces 4110243 serves molded polyurethane bump stops variations in height, bore and hardness, and the OEM and custom parts service page explains the drawing-to-sample process.

Kits and Single Pieces in the Cross Lists

One trap deserves its own section: several numbers that look like bare buffers are protection kits. Monroe lists PK482 and PK509 under the family, and the PK prefix stands for protection kit, a bellows plus the stop. KYB files 910344 and 910345 as dust cover kits whose contents include the bound bumper. GSP 5408290PK and 5408420PK repeat the pattern, and Original Imperium 360020K2 is a two-piece set. A buyer who orders one of these expecting a single molded piece receives a box with a bellows inside, and the unit price cannot be compared with a bare stop.

Quotations should name which shape is offered, and kit buyers should be asked whether the matching bellows is needed as well. Separate quotation lines for kit and piece avoid confusion and returns.

Factory-Direct Supply of the 54050 Profile

Bonpora produces the 54050 family profile in-house as number 4110243 and ships it from China in neutral export packaging under a 1 year warranty, with a standard dispatch window of 15 to 30 days. Molded polyurethane lets the same tool set serve height, bore and hardness variations for fleet and project inquiries, and OEM and custom design support covers customers who arrive with a drawing or a sample instead of a number. Wholesale buyers can request the profile with or without the dust cover, packed under their own brand. Every batch is checked for height, outer diameter and bore before packing, which keeps the dimension band from the table above stable across orders. For prices on 54050-HV10A equivalents or a tailored polyurethane profile, send the target dimensions or the OE number and the quotation follows within one working day.

Frequently Asked Questions

How many pieces does one vehicle need?

A front set is two pieces, one left and one right, and the same reference fits both sides. The rear axle takes a different buffer from the 55240 group, so two front pieces never cover a full vehicle.

Is 54050-HV10A the same part as 4CL0B or 6FR0A?

Suppliers treat them as one profile and cross-list them on the same product pages, and US dealer data shows 4CL0B replaced by 6FR0A inside the family. Run the physical checks anyway: about 102 mm height, 58 mm outer diameter, 21 mm base bore. If those agree, the references work interchangeably.

Does the part fit a Qashqai built in 2022?

J11 and T32 production windows run into 2022, so some 2022 cars are covered, but the J12 and T33 generations from 2021 and 2022 use different references. Confirm by VIN rather than by model year.

Should the offer include the dust cover kit?

It depends on the repair. Workshops replacing a complete strut often take the kit, while distributors restocking the bare stop order the single piece. KYB 910344 and 910345, Monroe PK482 and PK509 and the GSP PK numbers are kits with a bellows included, while febi 172141 and its twins are bare buffers. Bonpora quotes both configurations on request.