Bilstein B4 dampers are the OE replacement line, valved to restore the ride quality and ride height the car left the factory with rather than to change them. This is a monotube shock absorber measuring 276 mm collapsed and 436 mm extended, with a bar pin lower mount and a stem upper mount, made in Germany and sold individually. Monotube construction gives a larger piston and keeps gas and oil separated, which is why Bilstein's replacement units hold their damping on long rough roads better than the twintube originals many of these cars wore from new.
Specifications
| Type | OE replacement monotube shock absorber (Bilstein B4) |
| Collapsed Length | 276 mm |
| Extended Length | 436 mm |
| Upper Mount | Stem |
| Lower Mount | Bar pin |
| Origin | Made in Germany |
| Position | Rear |
| Quantity | 1 (sold individually) |
| Part Number | 24-007139 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1977-1978 | Mercedes-Benz | 230 | W123 |
| 1977-1983 | Mercedes-Benz | 240D | W123 |
| 1978-1981 | Mercedes-Benz | 280CE | W123 |
| 1977-1981 | Mercedes-Benz | 280E | W123 |
| 1978-1985 | Mercedes-Benz | 300CD | W123 |
| 1977-1985 | Mercedes-Benz | 300D | W123 |
| 1979-1985 | Mercedes-Benz | 300TD | W123 |
Shipping
- Orders placed before 3 PM ET typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
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