Derale Performance Multi Purpose Fitting
Derale Performance Multi Purpose Fittings: The Missing Link in Your Cooling System
A high-performance oil cooler or transmission cooler is only as effective as the plumbing that connects it. That's where Derale Performance multi purpose fittings come in — the purpose-built hardware that ties every cooling circuit together cleanly, securely, and leak-free. These fittings are not an afterthought in Derale's catalog; they are an essential part of a complete cooling system strategy developed by a brand with deep roots in performance.
Derale Performance is a division of CP Auto Products, Inc., a third-generation family-owned California company and a charter member of the original Speed Equipment Manufacturers Association (SEMA) since 1963. That legacy of precision and passion for quality carries directly into their fittings and plumbing hardware, which are engineered to work seamlessly alongside the brand's full range of coolers, fans, and accessories.
What Derale Multi Purpose Fittings Cover
The Derale multi purpose fitting lineup is built to handle the most common — and some of the trickiest — connection challenges in cooling system plumbing. Their range spans multiple fitting types and configurations, including:
- AN to NPT Adapter Fittings — Available in straight, 45-degree, and 90-degree configurations, these adapters bridge the gap between AN-style performance plumbing and standard National Pipe Thread ports, making almost any plumbing project simpler and more flexible.
- Male Adapter Fittings — Sizes such as -8AN x 1/2" NPT and -10AN x 1/2" NPT let builders match line sizes to cooler ports with precision and confidence.
- Tube Adapter Fittings — Constructed from aluminum with anodized finishes for durability, these adapt aluminum tubing to AN or NPT type fittings across most low-pressure applications.
- NPT to Hose Barb Adapters — Available in both straight and 90-degree versions, in aluminum and brass, these fittings make transitions from threaded ports to rubber hose connections clean and reliable.
- Compression Fittings — Designed for transmission line installations, these allow a clean in-line splice into existing transmission cooler lines without cutting or flaring.
- NPT Reducer Fittings — Brass straight reducers allow downsizing between common NPT sizes, giving builders the flexibility to match mismatched port sizes throughout a cooling circuit.
Why Derale Fittings Belong in Your Build
What sets Derale's multi purpose fittings apart from generic plumbing hardware is the system-level thinking behind them. Derale manufactures many of its products in-house and sources components from US-based suppliers wherever possible, maintaining strict quality standards across every part of the cooling system — right down to the fittings. Whether you are routing lines to a remote oil cooler, plumbing a transmission cooler bypass, or adapting AN-style hard lines to a cooler core, these fittings are designed to match Derale's own cooler port dimensions and thread specifications for a confidence-inspiring fit.
For builders who are already investing in Derale coolers, fans, or complete system kits, sourcing fittings from the same manufacturer eliminates the guesswork around thread compatibility, material match, and finish consistency. Browse the full Derale Performance brand page to explore their complete cooling ecosystem, or shop the entire multi purpose fittings category to find the exact adapter your project needs.