Parts for your 2017 Toyota Crown-Bump stops

2017 Toyota Crown bump-stops

Based on Toyota’s own technical documentation for the S210-series Crown (2013–2018), including the Toyota Repair Manual (RM series) and the Toyota Electronic Parts Catalogue, the 2017 Toyota Crown is fitted with bump-stops (also called jounce bumpers) on both the front and rear dampers. In Toyota EPC they’re listed as “Bumper, Front Spring” and “Bumper, Rear Spring”, typically paired with the dust boot on the strut/shock assembly. So yes—bump-stops are relevant, present, and doing quiet but critical work on every 2017 Crown, whether Royal, Athlete, or models equipped with AVS.

On this Crown, bump-stops act like a compact, progressive-rate helper spring at the very end of suspension travel. They cushion big hits, keep the suspension from bottoming out, and stop metal-on-metal contact that can damage the strut, control arms, or top mounts. They also help tune how the car feels at the limit of travel—smoothing harsh bumps, protecting tyres from fouling, and keeping geometry in check so the Crown stays composed and comfortable on rough Kiwi backroads or Aussie bitumen.

With age, bump-stops can perish, crack, or collapse—especially if the shocks have wept oil onto them or the dust boots have split. If the Crown feels crashy on sharp edges, thumps over speed humps, or you can see crumbly foam when the wheel’s off, the bump-stops are likely past it. They’re inexpensive compared with shocks and are best replaced as a set when doing front or rear dampers. For AVS-equipped cars, the correct Toyota-spec bump-stop matters because it’s matched to the damper’s tuning. Lowering the Crown? Opt for a shorter, progressive bump-stop designed for reduced travel to avoid riding the stops.

As part of routine servicing, it’s smart to inspect the bump-stops and dust boots every 20,000–30,000 km or annually, especially once the vehicle is 5–10 years old. Use quality OE or equivalent parts, ensure the boots seat properly to keep grit out, and torque the strut top nuts to spec after refit. Fresh alignment afterwards will keep tyre wear tidy and the Crown driving like it should.

• Tell-tales: thumps on big bumps, harsh end-of-travel feel, perished foam, split boots, oil contamination.
• Best practice: replace with shocks/struts, match AVS/non-AVS parts, align after installation.
• Driving benefits: quieter ride, better control at full compression, longer damper life.

Does the 2017 Toyota Crown actually have bump-stops?

It does. Toyota’s service literature and EPC list front and rear spring bumpers on the S210 Crown. They sit on the damper shafts under the dust boots and come into play at full compression to prevent bottoming out.

What are the signs the bump-stops need replacing on a Crown?

Look for a sharp thud on big hits, a harsher ride, or visible cracking and crumbling when the wheel is off. Oil-soaked or split dust boots often go hand-in-hand with tired bump-stops, so check both together.

Should bump-stops be changed when fitting new shocks or lowering springs?

Yes, it’s wise. New shocks deserve fresh bump-stops and boots. If lowering, use shorter, progressive bump-stops suited to the reduced travel to avoid riding the stops and to keep the ride comfy and controlled.