Afa Industries AFA Industries 8M4445 O-Ring Seal Part No: 8M4445

The AFA Industries 8M4445 O‑Ring Seal is an aftermarket equivalent to Caterpillar OEM part 8M‑4445, typically referenced under cross‑ref part Interstate‑McBee M‑8M4445. It’s specified to AS568A‑212 standard: ID 21.82 mm, cross‑section 3.53 mm, molded in silicone rubber (VMQ, Shore 70A) for excellent temperature tolerance and ozone resistance. This part is commonly used as a static seal in injector tube assemblies, hydraulic or pneumatic ports, and air interfaces on Cat engines, resisting compression set while maintaining leak-free operation. Lightweight and easy to install, it suits components subjected to moderate heat and pressure and helps maintain precision sealing in rebuild or OEM applications.