DELPHI FITTINGS
Hydraulic Fittings Manufacturer for North American OEMs
Our fittings show up, lock tight, and don’t quit. As the ISO 9001 certified factory behind your supply chain, we deliver reliability direct from China. Welcome to Delphi Fittings™.
Browse Hydraulic Fittings Get Wholesale PricingWhy Smart Buyers Work Directly With Us
Our Parts Don't Fail
Anyone can talk about 'quality' - we control it. We run our own zinc-plating line. We pressure-test our fittings. We control the process from raw bar stock to the shipping crate. That's not a slogan; it's how we guarantee your fittings hold up.
You're Buying from the Factory Floor
We don't have a trading desk. We have a team of engineers. When you get a quote from us, you're paying for steel, machining, and QC - not for layers of agents. This is how smart OEMs and distributors protect their margins.
Inventory That Ships. Now.
Downtime is your enemy, and a back-ordered part is a killer. Our shelves hold over $2 million in ready-to-ship inventory across 3,000+ part numbers. Your order doesn't wait for a container - it's waiting for a label.
Got a Blueprint? We'll Machine It.
We are a manufacturing partner, not just an order-taker. Our engineers work with OEMs every day to turn custom drawings into precision-forged reality. When the part you need doesn't exist in a catalog, talk to us.
Logistics Without the Headache
Tired of supply chain excuses? We ship from our factory near Ningbo port to your dock. We know the paperwork, the incoterms, and the carriers. You get real updates and parts that show up on time. Period.
Your Direct Line to a 290,000 sq. ft. Hydraulic Fitting Factory
Since 1998, Delphi Fittings (legally Yuhuan Dongfei Machinery Co., Ltd.) has been the factory, not the middleman. Trust isn't built with slogans; it's earned with calipers and an in-house plating line. When you partner with us, you're dealing directly with the ISO 9001 certified institution that machines, tests, and ships your components. Learn more about our story and our facility.
About the Name: Why "Delphi"?
In ancient Greece, the Oracle at Delphi gave clear, unambiguous answers to high-stakes questions. An engineer with a blueprint is in the same boat—you can't afford to guess if a fitting will hold 6,000 PSI. We chose the name Delphi because our job is to provide that certainty. Every fitting we machine is a clear, reliable component that does its job, every time. No guesswork. Just the right answer, forged in steel.
Explore Our Featured Hydraulic Fitting Categories
We offer a comprehensive selection of hydraulic fittings and adapters readily available for sale. Browse some of our most popular categories:
The Factory Floor: The Source of Your Competitive Edge
Factories don’t usually make people say “damn” - but ours tends to. Walk through the floor and you’ll see over 400 machines cutting steel like clockwork. Bar stock goes in one end, finished parts come out the other - same dimensions, every time. It’s not fancy. It’s precise. That’s the difference between a supplier that delivers once, and one that delivers for years.
We don’t chase capacity. We built it. With over 160 CNCs running 24/7 and a plating plant in-house, we control the outcome, not the excuses. You don’t get batch variation. You don’t get surprise delays. You get fittings that match spec, thread clean, and seal the first time - or we don’t ship them. Simple as that.
Plating? Ours happens 50 feet from where the parts are made. No trucks. No outsourcing. No guessing. That’s why when customers crack open a box from Delphi, they know what they’re holding: parts that hold pressure, hold up under salt spray, and hold your name on the line.
Vetted by the Partners Who Depend On Us
We're not just a supplier; we're a critical link in our partners' supply chains. Here's what they have to say about working directly with the factory floor.
"Before Delphi, our supply from Asia was a roll of the dice. Now, it's a fixed variable. Their quality is ironclad—the plating is consistent, the threads are clean, and we've seen a measurable drop in field complaints. They're a true manufacturing partner, not just another name on a spreadsheet."
Peter Stitt
Procurement Director, Fluid Fittings Australia
"When your brand is on the hose, the fitting it's attached to has to be perfect. There is zero room for error. We partner with Delphi for their manufacturing control. Having direct access to their engineers and knowing they run their own plating gives us the supply chain confidence we need to deliver a world-class product, container after container."
Maria Flores
Head of Global Sourcing, Balflex
Factory Know-How: Guides That Actually Help
Not sure which fitting to spec? These no-BS guides cut through the noise. Real-world answers to real-world problems – from thread ID to leak control, pressure ratings, and more.
The Hydraulic Fittings Sourcing Playbook: For Buyers Who Lead
- Chapter 1: Beyond the Price Tag – The True Cost of a Fitting
- Chapter 2: The Global Factory Map – Where Your Fittings REALLY Come From
- Chapter 3: Weaponizing the Spec Sheet – Using SAE, DIN & ISO to Guarantee Quality
- Chapter 4: The Factory Audit Playbook – What Your Supplier Hopes You Don't See
- Chapter 5: The Art of the Deal – Deconstructing Supplier Costs for Maximum Leverage
- Special Chapter: Top Hydraulic Fitting Manufacturers Around The World (Parker, Brennan, Eaton, China) – A Buyer's Guide
- → View the Full Hydraulic Fittings Sourcing & Procurement Playbook
Hydraulic Fittings: Specs, Threads & Standards
- How to Identify Hydraulic Fitting Threads (JIC, NPT, BSP)
- JIC vs. ORB vs. ORFS: Which Seal Type Actually Works?
- NPT vs BSPT Threads: What Every Tech Should Know
- Leak-Free Under Pressure: The Case for ORFS Fittings
- Should You Upgrade to Stainless Steel Hydraulic Fittings?
- The NPT Fittings Playbook: Sizing, Sealants & Pitfalls
- Fitting Safety 101: Pressure Hazards & Best Practices
- → View the Full Hydraulic Fittings Wiki
Application Insights & Custom Machining
- AN vs. JIC: Are They Interchangeable in the Real World?
- Can You Mix Fitting Brands? (Yes, But Read This First)
- Teflon Tape vs. Pipe Dope: Sealing NPT Threads the Right Way
- How to Tighten JIC Fittings Without Leaking or Cracking
- SAE Flange Fittings: Code 61 vs. Code 62 Explained
- DIN 2353 Metric Compression: The Global Bite-Type Standard
- JIC 37° Fittings: Deep Dive into SAE J514 Compliance
- → Learn About Custom Machined Fittings
Latest Fluid Power Industry News
- Market Report: 2025 Innovations in Hydraulic Efficiency
- Analysis: Key Trends in Sustainable Fluid Power
- Briefing: Material Science Breakthroughs for Hydraulic Parts
- Outlook: North American Fluid Power Market 2025
- Forecast: Global Fluid Power Market Growth & Analysis
- → Access All Industry Development Reports
Our Global Manufacturing Hub
We're located in the heart of China's industrial hardware region, with strategic access to the Port of Ningbo for efficient global logistics.
Good Suppliers Are Hard to Find. Here We Are.
You’ve seen the facility. You know our process. You understand our principles. Now, ask yourself: do you want parts from a reseller's spreadsheet or from a factory that takes quality as seriously as you do? If you’re a wholesaler, OEM, or distributor who is finished with excuses, let’s talk. We're ready to get to work.
Request a Factory-Direct Quote See Our Full Product Catalog