B8-23D
B8-23D Alternator Bearing 8×23×14
- Size
- 8 × 23 × 14 mm
- Cross-ref
- WAI 10-800-4PFI B8-23DAssembly A3TG0081; A3TG0081A; A3TG0091; A3TG0091A
IATF 16949 CertifiedSince 2011 · Jiashan County, China
OTT 62303-2RS is a sealed single-row deep groove ball bearing, 17×47×19 mm, with C3 internal clearance. Catalog cross references: PFI 62303-2RS C3; WAI 6-2303-4. PFI lists this bearing specification at the drive end of Marelli alternators on Fiat trucks and tractors. Match the bearing dimensions, seals and internal clearance during selection.
Interchangeable with
Technical data
| Dimensions | 17×47×19 mm |
|---|---|
| Seal / Marking | 2RS; C3 internal clearance |
| Structure | Deep groove ball |
| Position | Drive end (Marelli, PFI catalog reference) |
| Assembly Manufacturer | Pramo (OTT confirmation); Marelli (PFI catalog) |
OTT 62303-2RS Alternator Bearing 17×47×19 is interchangeable with the following brand part numbers:
| Brand | Part Number |
|---|---|
| WAI | 6-2303-4 |
| PFI | 62303-2RS C3 |
Available in OTT branded packaging or custom OEM packaging. Individual bearings are sealed in PE bags, packed in branded carton boxes, then palletized in wooden crates for export shipping.






Same product line
B8-23D Alternator Bearing 8×23×14
B10-27D Alternator Bearing 10×27×14
B10-50D Alternator Bearing 10×27×11
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Share an OE or competitor number, a drawing or target dimensions and your annual volume. Samples available for qualified projects.