Original Bosch cylinder pin — part 3604710007 (also listed as 3.604.710.007). This genuine Bosch straight pin / needle is the small precision locating/retaining pin used inside the internal assembly of Bosch rotary-hammer units; it’s sold individually so you can replace the worn or missing pin and restore correct alignment.

Fits example models including the DBH740R (0607557501) and a range of Bosch 370 W and 740 W series type numbers used on earlier rotary-hammer models. If your tool’s parts diagram shows part number 3604710007 in the same location, this is the correct original Bosch replacement.

Neat, no-frills replacement: sold as a single genuine Bosch part, simply match the number on your diagram (3604710007 / 3.604.710.007) and swap the pin into the same bore — a straightforward repair using common hand tools. This item is one of the Bosch power tool parts you’ll want on hand when tackling small internal repairs, and it’s a basic, hard-to-replace example of the small power tool parts that keep a rotary hammer working like new.

Browse our full range of Bosch hammer drill parts.