MM4e MotoMeter gear for BMW E30 K75 K100 speedometer repair 28x22



Description:
The 4-component transmission is a frequent source of errors on Motometer odometers of various models. The drives affected are installed in many vehicles of European, Japanese and American brands around the world. Including motorcycles from BMW.

The drive consists of 4 gears:
- The driving gear E1 is identical for Allen and has 12 teeth (for VDO and Motometer)
- gear MM2 (Double gearwheel) in 4 variants (MM2, MM2c, MM2d, MM2e)
- gear MM3 (Double gearwheel) in 6 variants (MM3, MM3b, MM3c, MM3d, MM3e, MM3f)
- gear MM4 (Double gear) in 5 variants (MM4, MM4b, MM4c, MM4e, MM4f)

The numbers of teeth are assigned to the designations below:
MM2 = 44x16 teeth
MM2c = 44x17 teeth
MM2d = 43x16 teeth
MM2e = 43x17 teeth

MM3 = 40x22 teeth
MM3b = 40x28 teeth
MM3c = 38x23 teeth
MM3d = 38x28 teeth
MM3e = 39x28 teeth
MM3f = 40x34 teeth

MM4 = 35x22
MM4b = 28x22
MM4c = 33x26
MM4e = 28x22 (star-shaped teeth, original part is Braun / beige)
MM4f = 23x22 teeth

Before buying, we ask that you open the instrument cluster and check the gears to determine the correct variant for you. Use the search function in the shop and look for the gear names (e.g. MM4 or E1).

You can find out which gear you are purchasing with this offer from the offer title

Hints:
We have a large number of speedometer gears for Motometer, VDO and other speedometers and instruments in our program. Unfortunately, the exact combination (vehicle model to gear variant) cannot be determined for every model, but we have separate offers in the shop for the known and most common combinations.
Buying a used speedometer may save repairs, but there is a risk that the gear will break soon.
Storage times and cold temperatures in particular also damage the gears. In addition, you keep your original mileage with the repair!
If you have disassembled the speedometer, we recommend replacing the lightbulbs. These lose noticeably in performance over the years. They are available at any car dealership and accessories store.

Your advantages:
Our gears are injection-molded from high-quality thermoplastic material: This enables very good dimensional accuracy and an involute shape of the teeth, which run particularly gently on the partner gear.

partworks is a German brand that has specialized in the reproduction of young and old-timer spare parts. Particular emphasis is placed on high quality and good service. More than 15,000 car fans worldwide are already satisfied customers of the small company from Paderborn. As a specialist company for vintage spare parts, partworks GmbH is aware of the quality demands of its customers. Therefore, when it comes to redevelopments, you can be sure that the requirements are based very closely on the original or even exceed them. With our own engineering department and internal testing, we can ensure the reliability of our products. Last but not least, our DIN-ISO-certified quality management confirms the thoroughness of our work.

Reference Numbers:
6160444216, 6160444316, 1377302, 1381851, 1381871, 1386499, 110008357002, 110008403021, 110008403036, 1244388, 62117670139, 621.176.701.39, 621 176 701 39, 62117670131, 621 176.176.176.701.38, 62176.176.176.501 383.38, 621 176.176.701.38, 62176.176.701 503 08, 62117718207, 621.177.182.07, 621 177 182 07, 62117725815, 621.177.258.15, 621 177 258 15

Scope of delivery:
1 gear / 1 gear

Suitable for:
Generally

Item number: 2058