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OE Quality
60-Day Returns
NationalPart #: KB-11786-Y
National KB-11786-Y Wheel Bearing and Race Set - Rear Outer
⚙️ 10 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$64.20Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and GMC, P30 and P3500
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Wheel Bearing and Race Set options
National KB-11786-Y Wheel Bearing and Race Set - Rear Outer
| Brand | National |
| Part Number | KB-11786-Y |
| Cone Bore (Inch) | 2.2500 |
| Cone Bore (MM) | 57.1500 |
| Cone Length (Inch) | 0.8640 |
| Cone Length (MM) | 21.9460 |
| Cone Radius (Inch) | 0.0930 |
| Cone Radius (MM) | 2.3620 |
| Cup Bore (Inch) | 3.8750 |
| Cup Bore (MM) | 98.4250 |
| Cup Length (Inch) | 0.7018 |
| Cup Length (MM) | 17.8260 |
| Cup Radius (Inch) | 0.0310 |
| Cup Radius (MM) | 0.7870 |
| Part Description | Taper bearing set |
| Standout (Inch) | 0.1250 |
| Standout (MM) | 3.1750 |
| Taper Bearing Cone | 387 |
| Taper Bearing Cup | 382 |
| Width (Inch) | 0.8268 |
| Width (mm) | 21.0000 |
This part fits 10 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1981 | Chevrolet | P30 | Rear Outer | |
| 1981 | GMC | P3500 | Rear Outer | |
| 1980 | Chevrolet | P30 | Rear Outer | |
| 1980 | GMC | P3500 | Rear Outer | |
| 1979 | Chevrolet | P30 | Rear Outer | |
| 1979 | GMC | P3500 | Rear Outer | |
| 1978 | Chevrolet | P30 | Rear Outer | |
| 1977 | Chevrolet | P30 | Rear Outer | |
| 1976 | Chevrolet | P30 | Rear Outer | |
| 1975 | Chevrolet | P30 | Rear Outer |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
1276251276261276271276281422561422571445251445261480671480681900702120222125212160156659569R91846567R919412402BS225218BT11786YKBFKB11786YK22KB11786-YKB11786YS615YR8
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.