Crowngear set/differential case for BMW 3 Series E21 320i (1979)
This Crowngear set/differential case technical drawing provides a detailed breakdown of the assembly for the 3 Series E21 320i. It includes part names, part numbers and all associated mounting hardware for vehicles produced between 1979.
| No. | Description | Supp. | Qty | From | Up To | Part Number | Price | Notes | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 01 | Crowngear set | I=40:11=3,64 | 1 | 09/1979 | 33121211831 | $804.08 | Shop at ECS Tuning | |||
| 02 | Differential case | 1 | 33131212369 | $150.66 | ENDED | Shop at ECS Tuning | ||||
| 03 | Lock bolt | M10X19 | 8 | 33131212693 | $1.59 | Shop at ECS Tuning | ||||
| 04 | Roll pin | 5X40 | 1 | 07119941377 | $0.22 | ENDED | Shop at ECS Tuning | |||
| 05 | Bevel gear shaft | 1 | 33131206094 | $14.84 | Shop at ECS Tuning | |||||
| 06 | Diaphragm spring | 2 | 33131201538 | $0.98 | ENDED | Shop at ECS Tuning | ||||
| 07 | Shim | 1,400MM | 2 | 33131205021 | $3.06 | Shop at ECS Tuning | ||||
| 07 | Shim | 1,450MM | 2 | 33131205022 | ENDED | Shop at ECS Tuning | ||||
| 07 | Shim | 1,500MM | 2 | 33131205023 | ENDED | Shop at ECS Tuning | ||||
| 07 | Shim | 1,550MM | 2 | 33131205024 | ENDED | Shop at ECS Tuning | ||||
| 07 | Shim | 1,600MM | 2 | 33131205025 | ENDED | Shop at ECS Tuning | ||||
| 07 | Shim | 1,650MM | 2 | 33131205026 | ENDED | Shop at ECS Tuning | ||||
| 07 | Shim | 1,700MM | 2 | 33131205027 | ENDED | Shop at ECS Tuning | ||||
| 07 | Shim | 1,75MM | 2 | 33131210406 | $3.06 | ENDED | Shop at ECS Tuning | |||
| 07 | Shim | 1,80MM | 2 | 33131210407 | $3.06 | ENDED | Shop at ECS Tuning | |||
| 08 | Bevel gear | 2 | 33131204990 | $39.48 | Shop at ECS Tuning | |||||
| 09 | Side gear | 2 | 33131204959 | $61.97 | Shop at ECS Tuning | |||||
| 11 | Lock Ring | 2 | 09/1978 | 33131207280 | $0.25 | Shop at ECS Tuning |
Notes
- ENDED = the part has been discontinued (no longer available).
See Also
Frequently Asked Questions
- What assembly is shown in the BMW 3 Series E21 320i Crowngear set/differential case?
- This technical diagram illustrates the Crowngear set/differential case within the Rear Axle group for the 3 Series E21 320i produced during 1979. It provides a detailed exploded view of the components, identifying key parts such as the Crowngear set (Part #33121211831).
- Which models use the hardware listed in this Crowngear set/differential case?
- The hardware and components featured in the Crowngear set/differential case are specific to the 3 Series E21 320i produced during 1979. These technical specifications ensure that parts like the Crowngear set (33121211831) are correctly matched to the vehicle's structural and mechanical requirements.
- How do I find specific parts within the Crowngear set/differential case assembly?
- Each item in the Crowngear set/differential case corresponds to the numbered list below the illustration. For the 3 Series E21 320i, you can identify the Crowngear set by locating its position on the schematic, which then links to the official BMW part number 33121211831 for the Rear Axle section.