MM4B Gear for BMW 3 Series E30 K1100 K1200 K1300 MOTOMETER Speedometer Instrument Cluster
Description:
The 4-component gear is a common source of failure in Motometer odometers of various models. The affected drives are installed worldwide in many vehicles of European, Japanese, and American brands, including BMW motorcycles.
The drive consists of 4 gears:
- The driving gearE1is identical for all and has 12 teeth (for VDO and Motometer)
- GearMM2(double gear) in 4 variants (MM2, MM2c, MM2d, MM2e)
- GearMM3(double gear) in 6 variants (MM3, MM3b, MM3c, MM3d, MM3e, MM3f)
- GearMM4(double gear) in 5 variants (MM4, MM4b, MM4c, MM4e, MM4f)
The following are the tooth counts assigned to the designations:
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 your instrument cluster and inspect the gears to determine the correct version for your vehicle. Use the search function in our shop and search for the gear designations (e.g., MM4 or E1).
The gear you are purchasing with this offer is indicated in the offer title.
Notes:
We stock a wide variety of speedometer gears for Motometer, VDO, and other speedometers and instruments. Unfortunately, it is not possible to determine the exact combination (vehicle model to gear variant) for every model. However, we have separate offers in our shop for the most common combinations.
Buying a used speedometer might save you the cost of repair, but it carries the risk that the gear will break soon.
Storage periods and cold temperatures are particularly damaging to the gears. Furthermore, repairing your speedometer will preserve your original mileage reading!
If you have already disassembled the speedometer, it is also advisable to replace the bulbs. These lose a noticeable amount of brightness over the years. They are available at any car dealership and auto parts store.
Your advantages:
Our gears are injection-molded from high-quality thermoplastic: This allows for very good dimensional accuracy and an involute tooth shape that runs particularly smoothly against the mating gear.
If you disassemble the speedometer beforehand, please note that the speedometer needle shaft is very delicate. Grip the speedometer needle in the middle and turn it counterclockwise. Pull gently while doing so. Friction is all that holds the needle on the shaft.
Partworks GmbH is a German company specializing in reverse engineering and the distribution of spare parts for Porsche. Particular emphasis is placed on high quality and excellent service. More than 130,000 car enthusiasts worldwide are already satisfied customers of the company from Paderborn. As specialists in classic car parts, we are well aware of our customers' high quality standards. Therefore, you can be confident that our redesigned parts meet the exact specifications of the originals and, in some cases, even exceed them. With our own engineering department and internal testing, we can guarantee the reliability of our products. Our DIN ISO 9001-certified quality management system further confirms the thoroughness of our work. If you see the manufacturer's name "partworks," this indicates either an in-house development or an original equipment manufacturer (OEM) part (OE quality). OEMs are the manufacturers who supplied the original product to the vehicle manufacturer but cannot sell it under their own brand on the open market. Reference numbers: 6160444216, 6160444316, 1377302, 1381851, 1381871, 110008357002, 110008403021, 110008403036, 1244388, 62117670139, 62117670139, 62117670139, 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
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
Suitable for:
General
