AFA Industries 8M4389 O-Ring Seal
The AFA Industries 8M4389 O‑ring replicates Cat OEM specifications with dimensions conforming to the original standard. Lightweight (~0.01 lb), it’s designed for static sealing—such as injector tube inputs or hydraulic flanges—and meets OEM tolerances for reliable sealing performance. Ideal for applications subjected to moderate oil or engine temperature exposure.
$0.69
Specifications
The AFA Industries 8M4389 Seal O‑Ring is engineered as a precision aftermarket replacement for Caterpillar part 8M‑4389, intended for static seal locations including injector or pressure flange fittings. It meets Cat spec dimensions and is molded from durable nitrile or similar elastomer, providing reliable performance in engine oil or moderate-temperature environments. Sold by part distributors to meet AS-standard fit and function.
Weight
0.01
Compatibility
Alternative Part Numbers
Caterpillar 8M‑4389
AFA 8M4389
AFA 8M4389
