MM4 gear wheel for BMW 3 Series E30 K1100 K1200 K1300 MOTOMETER speedometer instrument cluster

MM4 gear wheel for BMW 3 Series E30 K1100 K1200 K1300 MOTOMETER speedometer instrument cluster

Description:
The 4-component gear ratio is a frequent source of error on engine odometer meters of various models. The affected drives are installed worldwide in many vehicles of European, Japanese and American brands. Including motorcycles from BMW.

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

The tooth numbers 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 brown/beige)
MM4f = 23x22 teeth

Before purchasing, please open the instrument cluster and check the gears to determine the correct variants for you. Use the search function in the store and search for the gear designations (e.g. MM4 or E1).

The gear you are purchasing with this offer can be found in the offer title

Notes:
We have a variety of speedometer gears for motometers, VDO and other speedometers and instruments in our range. Unfortunately, the exact combination (vehicle model to gear variant) cannot be determined for every model, but we have separate offers in the store for the known and most common combinations.
Buying a used speedometer may save the repair, but there is a risk that the gearwheel will break in the near future.
In particular, storage times and cold temperatures cause additional damage to the gears. You also keep your original mileage with the repair!
If you have disassembled the speedometer, we also recommend replacing the bulbs. These lose performance noticeably over the years. They are available from every 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 are particularly gentle on the partner gear.

If you disassemble the speedometer in advance, please note that the shaft of the speedometer needle is very sensitive. Grip the speedometer needle in the center and turn it counterclockwise. Pull gently. Friction is all that keeps the needle on the shaft.

partworks GmbH is a German company that specializes in reverse engineering and the sale of spare parts for Porsche. Particular emphasis is placed on high quality and excellent service. More than 130,000 car fans around the world are already satisfied customers of the Paderborn-based company. As a specialist company for classic car spare parts, we are aware of the quality requirements of our customers. That's why you can be sure that the requirements for new developments are based very closely on the original and sometimes 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-9001-certified quality management confirms the thoroughness of our work. If you see the manufacturer specification partworks, this means that it is either an in-house development or an article from an original equipment manufacturer (OE quality). Original equipment manufacturers are those manufacturers who have supplied the original product to the vehicle manufacturer but cannot be active on the open market under their own brand.

Reference numbers:
6160444216
6160444316
1377302
1381851
1381871
1386499
110008357002
110008403021
110008403036
1244388
62117670139,   621.176.701.39,   621 176 701 39
62117670138,   621.176.701.38,   621 176 701 38
62117650308,   621.176.503.08,   621 176 503 08
62117718207,   621.177.182.07,   621 177 182 07
62117725815,   621.177.258.15,   621 177 258 15


Scope of delivery:
1 gear wheel / 1 gear

Suitable for:
general