![420 / 250 O-Ring (Blower to Manifold) [#9217]](https://theblowershop.com/wp-content/uploads/2022/03/9300-250O-RING-450-1.jpg "420 / 250 O-Ring (Blower to Manifold) [#9217] 1")
420 / 250 / 256 O-Ring (Blower to Manifold) [#9217]
$24.20
CompareO-ring for a 250/420 B&M or the 256 Weiand Supercharger
| Weight | 1 lbs |
|---|---|
| Dimensions | 4 × 4 × 4 in |
![420 MEGA Bearing & Seal Kit [#9010]](https://theblowershop.com/wp-content/uploads/2022/03/BM-1-1-1-100x100.jpg)
![420 Shaft & Coupler Kit (LONG 5.7" - 6.1") [#9248]](https://theblowershop.com/wp-content/uploads/2022/03/BM-8-1-1-1-100x100.jpg)
Related products
![B&M 420 MEGABLOWER REPLACEMENT BILLET STEEL BEARING RETAINER PLATES [#9176]](https://theblowershop.com/wp-content/uploads/2022/03/IMG_5704-scaled-1-300x300.jpg)
![420 Medium Coupler (5.0" - 5.4" Snout Length) [#9242]](https://theblowershop.com/wp-content/uploads/2022/03/Shaft-5-1-205x300.jpg)
Quick View
![420 MEGA Bearing & Seal Kit [#9010]](https://theblowershop.com/wp-content/uploads/2022/03/BM-1-1-1-300x300.jpg)
Quick View
![10 Rib Idler Pulley W/ Bearing (Weiand / Holley) [#9250]](https://theblowershop.com/wp-content/uploads/2022/03/B-Comp-4.png)
Quick View
![MEGA / 420 Base Gasket (single gasket) [#9210]](https://theblowershop.com/wp-content/uploads/2022/03/9210-420BASEGSKT-450-1-300x300.jpg)
Quick View
![B&M MEGA / 420 Billet Front Cover Polished (B&M Snout) [#9171]](https://theblowershop.com/wp-content/uploads/2022/03/9171-450-1-1-300x297.jpg)