Distribution Blocks for Oil, Brake & Fluid Line Systems

Distribution Blocks for Oil, Brake & Fluid Line Systems

Automotive distribution blocks split a single fluid or oil feed line into multiple outlets, allowing one pressurized source to supply several components simultaneously. They are essential for oil cooler systems, turbo oil feed lines, nitrous distribution systems, and remote filter setups where multiple parallel circuits must be fed from one inlet without pressure drop or leak points at each junction.

Popular Distribution Block Applications

Common applications include AN-fitting oil distribution blocks for turbocharger oil supply lines, brake line distribution blocks for custom hard-line brake systems, and multi-port blocks for oil cooler and remote filter plumbing on LS and Coyote swap builds. Billet aluminum distribution blocks with -4AN, -6AN, and -8AN ports provide the cleanest and most leak-resistant solution for track and competition vehicles.

What size AN fittings do distribution blocks typically use?

Most automotive distribution blocks use standard AN fittings ranging from -4AN for small oil feeds up to -8AN or -10AN for high-volume oil and fluid circuits. Matching the fitting size to your line diameter and flow requirements ensures proper pressure distribution without restriction across all outlets.

Can distribution blocks be used for both oil and fuel systems?

Yes. Billet aluminum distribution blocks are suitable for oil, fuel, water, and brake fluid depending on the seal material and fitting specification. Always confirm the block material and internal seals are compatible with the specific fluid type and operating temperature range for your application.

Shop distribution blocks alongside related plumbing hardware in our air intake systems collection, and find supporting exhaust and suspension upgrades for your build.