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| Material | Metal |
| Color | Silver or Green |
| Pattern | Solid |
| Compatible Models | Rancilio MD-40, MD-50, MD-80, Rocky, Kryo MD65 |
| Part Number | 39120035 |
Rancilio Doser Adjustment Ring Stopping Pin Spring This spring works with the stopping pin on Rancilio's doser adjustment ring, giving the ring a positive detent feel as you rotate it through its dose-size settings. SPECIFICATIONS 17 x 4 mm Rancilio #39120035 Same part as MR_173 COMPATIBILITY Fits: MD-40, MD-50, MD-80, Rocky and "Kryo" MD-65 dosers, essentially every Rancilio doser adjustment ring stopping pin INSTALLATION In-housing swap, requires opening the doser adjustment ring assembly. PRO TIPS If the doser adjustment ring spins loosely without the usual detent clicks as you set your dose size, this spring, not the ring or pin, is the near-universal cause across every Rancilio doser model.
The catalog often lists the same model at several merchants — worth a price check before you buy.