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A strut bump stop is the elastomer element that defines how a strut behaves in the last part of its compression travel. On Honda models with compact damper layouts, this small part sits over the damper rod and stops the suspension from compressing metal to metal. Importers and workshop buyers normally arrive at it from one of four directions: the OE number 52722-S9A-014, the Honda model range, the dimensions and material, or a request for a custom-moulded equivalent. This page answers all four from a procurement point of view.
Also written as jounce bumper, bump stopper, or strut buffer, the part is a moulded elastomer sleeve fitted over the piston rod. During normal driving it stays clear of the mount. Under a hard compression event — a pothole, a speed bump, a fully loaded cabin — it engages progressively and turns what would be a metal impact into controlled resistance.
Elastomer parts age. Heat, ozone, road salt, and repeated compression cycles harden the material until it cracks and loses its progressive behaviour. From that point the damper begins to bottom out and the failure spreads to the mount and the shock absorber. For the wider range, see our auto parts catalogue.
The item described here is a strut bump stop for Honda applications, referenced under OE number 52722-S9A-014 and Bonpora number 4110064. The table below lists the data buyers usually ask for before requesting a quotation.
| Parameter | Value |
|---|---|
| Product name | Strut Bump Stop |
| OE number | 52722-S9A-014 |
| Bonpora no. | 4110064 |
| Fitment | Honda |
| Dimensions | Φ12 x Φ49.5 x 67.9 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 |
Φ12 mm is the inner bore that fits over the damper rod, Φ49.5 mm is the outer diameter of the elastomer body, and 67.9 mm is the free length. This is a compact, short-profile stop: a free length under seventy millimetres means the part engages earlier in the stroke, so bore and length must both match the original before a substitution is approved. A stop with the correct bore but the wrong free length engages earlier or later than the original, which changes load behaviour and generates fitment complaints after the parts have shipped.
Polyurethane suits this application. Compared with conventional rubber it resists tearing and oil exposure better, holds its shape across a wider temperature range, and can be moulded to a controlled hardness so the compression curve stays progressive rather than abrupt. That makes it a practical choice for daily-driven cars and for lightly loaded suspension setups alike.
In Honda part numbering, the 52722 prefix identifies the suspension bump stopper group, and the -S9A suffix code is commonly associated with CR-V platform applications. Fitment still varies by platform, model year, and whether the vehicle left the factory with standard or revised suspension, so the vehicle identification number or the part removed from the car remains the most reliable reference.
Bump stops are a low-unit-value, high-turnover line that supports higher-margin suspension sales. Sourcing them well is mostly about consistency rather than the lowest quotation.
Suppliers with OEM and custom design capability can produce stops to a customer drawing or sample, including non-standard bore sizes, different hardness grades, and application-specific profiles. This suits distributors building a private-label suspension range as well as workshops servicing vehicles with modified ride heights. If you need a made-to-spec part, our auto parts sourcing team can review drawings and samples alongside OE-referenced items.
For catalogue items held in stock, 15–30 days covers production and export preparation. New tooling adds development time, so plan the first order of a private-label line well before the selling season.
A worn bump stop is often discovered during damper replacement, but it can also be diagnosed from the driver seat.
Bump stops are normally replaced together with the damper mount and dust boot, since all three share the same access procedure and a similar service life. Replace both sides of the axle at the same time, support the suspension correctly before releasing fasteners, and torque components with the car at normal ride height. Compare the old elastomer part against the new item before installation to confirm that the three dimensions match.
No. The bump stop and the top mount are separate components in the same assembly. The mount carries load into the body; the bump stop is the elastomer element that limits compression travel. They are commonly replaced together, but they are not interchangeable.
Yes, provided the dimensions match the original. Polyurethane is a direct replacement material for this application, and the fitment decision is driven by bore, outer diameter, and free length rather than by material alone.
Where an existing mould matches your drawing, the OE reference is enough. Where the profile, hardness, or length differs, the part can be produced to your sample or drawing under an OEM programme. Send the drawing with the target annual volume for a specific quotation.
Quoted delivery is 15–30 days for stock-referenced items, with export packaging prepared for sea or air freight. Confirm the shipping method and destination port so the quotation reflects the right terms.
If you are sourcing strut bump stops for Honda applications, or need a custom-moulded stop to your own specification, send us the OE number, vehicle platform, and annual volume. We can confirm availability, provide dimensional data, and quote on neutral export packaging or private-label terms.
