| Manufacturer | Model | Version | Engine code | Construction type | Construction start | Construction end | Pk | Power kw |
| AVIA | ||||||||
| MAGIRUS-DEUTZ | ||||||||
| Manufacturer | Productnumber |
| FIAT | 42061921 |
| RENAULT | 50 00 677 075 , 5000677075 |
| RENAULT | 5000677075 |
| RENAULT | 55 16 021 267 , 5516021267 |
| RENAULT | 5516021267 |
| DAEWOO | M408541 |
| DAF | 126 7988 , 1267988 |
| DAF | 1267988 |
| DAF | 131 0137 , 1310137 |
| DAF | 1310137 |
| DAF | 279 810 , 279810 |
| DAF | 279810 |
| DAF | 514 454 , 514454 |
| DAF | 514454 |
| DAF | 659 320 , 659320 |
| DAF | 659320 |
| IVECO | 42061921 |
| MAN | 81.30550-0044 , 81305500044 |
| MAN | 81305500044 |
| DEMAG | 1806 0840 , 18060840 |
| DEMAG | 18060840 |
| IVECO MAGIRUS | 2475546 |
| IVECO MAGIRUS | 2475547 |
| IVECO MAGIRUS | 2565803 |
| IVECO MAGIRUS | 42003396 |
| IVECO MAGIRUS | 42003397 |
| IVECO MAGIRUS | 42061921 |
| IVECO MAGIRUS | 6276678 |
| FAHR | 0627 6678 , 06276678 |
| FAHR | 06276678 |
| FAHR | 12123-300-620.00 , 1212330062000 |
| FAHR | 12123-300-620.01 , 1212330062001 |
| FAHR | 1212330062000 |
| FAHR | 1212330062001 |
| KAELBLE | 600 80 256 , 60080256 |
| KAELBLE | 60080256 |
| gottwald | 352 193 , 352193 |
| gottwald | 352193 |
| Usage numbers |
| 500 0083 21 |
| 500008321 |
| 4 |
| 00511E+12 |
The Clutch Release Bearing (500 0083 21) enables smooth and quiet clutch disengagement under load. Replacing a worn bearing with Porza quality restores silent operation and clutch reliability.
Use our vehicle compatibility checker or enter your car’s make, model, and year to confirm fitment. If you’re unsure, contact our support team for assistance. Or, for extra peace of mind, purchase our 100% Fitment Guarantee service at checkout.
While some parts are DIY-friendly, others may require professional installation. Check the product manual or consult a mechanic if unsure.
Most installations only require basic tools, but some may need specialty tools. Check the product details or installation guide for recommendations.
We offer both OEM and high-quality aftermarket parts. Each product listing specifies whether it's OEM or aftermarket.
The materials vary by product but are always designed for durability and performance. Check the product details for specific material information.
Most orders are processed within 24 hours and delivered within 2-5 business days. Expedited shipping options are also available at checkout.
We accept returns within 30 days of delivery, provided the item is unused and in its original packaging. Visit our Returns page for more details.
Yes! Most of our parts include a manufacturer warranty. Check the product details for specific coverage information.