Vauxhall Astra Rear Bumper: Fitment, Sensors & Common Damage
On the Astra, a genuine warning before any towbar fitting: splicing directly into CANBUS wiring instead of using a proper trailer module can cause lights to malfunction.
Illustration for editorial purposes
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OEM Part Number: confirm via VIN — rear bumper (aftermarket) Prasco OP4201051 / Diederichs 1808055
| Rear bumper covers (aftermarket) | Prasco OP4201051 (Rear, primed); Prasco OP4201061 (Rear, doors: 5, primed, with holes for parking sensors); Prasco OP4201071 (Rear, for vehicles with parking sensors, for vehicles with park assist, primed); Diederichs 1808055 (Rear, for vehicles without parking sensors, primed); Diederichs 1808056 (Rear, for vehicles with parking sensors, primed); Diederichs 1808057 (Rear, for vehicles with parking sensors, primed) |
|---|---|
| Lower sections, corners & trims | None listed separately |
| Genuine (OE) numbers quoted | None quoted in the catalogue listings — the genuine cover varies by body style, parking sensors and tow bar, so order it against your VIN |
| Fitment notes | Match body style, facelift date and the holes for parking sensors or exhaust trims; covers come primed and need painting to your paint code before fitting. |
A Genuine Warning If You're Having a Towbar Fitted — Vauxhall Astra Rear Bumper
Worth knowing before booking any towbar work: the CANBUS electrical system feeds bulbs different voltage levels depending on function — a genuinely important detail that means simply splicing a basic 7-pin trailer plug directly into the existing wiring, rather than using a proper trailer interface module, will cause the car's own lights to behave erratically once a trailer is connected. Insist on a dedicated CANBUS-compatible trailer module rather than a basic splice-in kit, and confirm your fitter genuinely understands this distinction.
Vauxhall Astra Rear Bumper: More Than Just a Plastic Panel
The Vauxhall Astra's rear bumper carries more hardware than older cars used to — parking sensors, a reversing camera housing, occasionally exhaust trim finishers — which is exactly why even a minor kerb knock can mean more than just ordering a replacement panel.
Vauxhall Astra Rear Bumper: Watch: Replacing It
The sequence is much the same on this generation: wheel-arch liner screws, the fixings along the boot aperture and under the lower edge, then unclip each corner from the wing and unplug any sensor loom before the cover comes away.
Vauxhall Astra Rear Bumper: What It Does
Beyond absorbing minor impacts, the rear bumper on higher trims of the Astra often houses parking sensors, a reversing camera, and sometimes integrated exhaust finishers. A bumper that looks compatible can still be missing the correct cutouts or wiring provisions for your specific trim's equipment.
Vauxhall Astra Rear Bumper: Generations, Derivatives & Colour
| Astra H (2004–2010), standard trims | Star Silver, Flame Red, Black Sapphire, Arctic White |
|---|---|
| Astra J (2009–2015), standard trims | Summit White, Flame Red, Star Silver, Black Sapphire |
| Astra J VXR (2012–2018) | The rear bumper is also styled differently on this trim |
| Astra K/L (2015–present), standard trims | Arctic White (no-cost), Crystal Silver, Quartz Grey, Diamond Black |
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Vauxhall Astra Rear Bumper: Common Damage, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Rear Bumper Guide for common damage types, confirming fitment (body style and sensor equipment matter here), and OEM vs aftermarket guidance.
More Vauxhall Rear Bumper
The same part, covered across other Vauxhall models.