The Bilstein B4 OE Replacement front strut assembly, Bilstein part 22-045751, is a twin-tube, gas-pressure strut from the brand's B4 line. The manufacturer positions the B4 series as a way to restore a vehicle's original ride and handling while meeting or exceeding OE standards. For a 98-10 Volkswagen Beetle Base with worn factory struts, this replacement returns the factory-style ride and body control without the cost of a full coilover conversion. Bilstein's German-engineered damping in a twin-tube body gives a noticeably more controlled feel than a budget unit, and it is a practical choice for a daily driver or a light autocross car that needs predictable front-end behavior.
Fitment is the first thing to verify. The product title covers the 98-10 Beetle Base, but fitment data varies across sources, with some listings also covering Golf IV and Jetta IV applications and noting sport suspension equipment. Confirm your exact year, trim, and suspension package against the manufacturer's application data before ordering. Owners on user forums recommend inspecting the strut-tower top nuts, which can stretch, and replacing them along with the strut bearings and bushings. Searches for "Beetle front strut replacement," "B4 twin-tube front strut," and "VW Beetle 98-10 sport suspension strut" will lead to this exact part.
Fitment data differs between sources, so the manufacturer recommends confirming the correct application for your specific vehicle before installation. Check your year, trim, and sport suspension package against the manufacturer's application data before ordering.
Whether components transfer depends on what is included with your assembly. The manufacturer's general strut instructions describe transferring parts such as the spring, upper mount, and dust boot from the old unit with a spring compressor when they are not supplied with the new strut. Check the packing list for your specific part.
Owners on user forums report that worn or stretched top nuts in the strut tower can cause problems, and they recommend replacing them with new strut bearings and bushings during the job.
This is a moderately involved front-end job. Raise the car safely on jack stands, loosen the wheel lugs, and disconnect the sway bar end link so the knuckle can move freely. Owners on user forums suggest supporting the hub with a scissor jack and raising it until the strut pins line up in the knuckle slot. Pay close attention to the orientation of the strut bearing when reassembling the top mount. Use a spring compressor if you need to transfer the spring, and keep your tools ready for the top nuts, which can be difficult to remove. The manufacturer's general strut instructions also advise against fully tightening rubber-mounted attachments until the vehicle is at ride height. Plan on a wheel alignment after the install.
