4d56 Exhaust Manifold – High‑Performance, OEM‑Ready, Fast Delivery
Cut costs, boost engine efficiency, and secure on‑time delivery – perfect for Purchasing Managers & Technical Directors in the USA.
Get Free Quote in 24 hWhy Your Current Exhaust Manifolds Hold You Back
- High Purchase Price: Traditional suppliers charge 20‑30 % above market, squeezing your ROI.
- Inconsistent Quality: Cracks, porosity, and dimensional drift cause warranty claims and production downtime.
- Long Lead Times: 6‑8 weeks from order to delivery slows assembly lines and delays shipments.
- Limited Material Options: Lack of aluminum or stainless‑steel options forces you to compromise on weight and corrosion resistance.
- Poor Technical Support: Generic datasheets and no OEM/ODM design assistance increase engineering effort.
According to a 2025 industry survey, **38 %** of U.S. automotive parts buyers cited “unreliable supplier lead time” as the top barrier to scaling production. Get a faster, cheaper solution now.
Your Competitive Edge with YD’s 4d56 Exhaust Manifold
Core Advantages
- Cost‑Effective Pricing: Our North‑China foundry network reduces material cost by up to **28 %** vs Western OEMs.
- Premium Quality Assurance: ISO 9001, CE, RoHS, and **5‑point dimensional control** guarantee ≤ 0.02 mm tolerance.
- OEM/ODM Flexibility: Full‑scale design support—from CAD‑modeling to prototype testing.
- Fast Shipping: 3‑5 business‑day dispatch from Shijiazhuang; air‑freight options meet JIT demands.
- Material Variety: Cast iron (GJS‑500), aluminum (Al‑Si12), stainless steel (AISI 304/316).
Technical Specification
| Parameter | Specification | Units |
|---|---|---|
| Model | 4d56 | ‑ |
| Material | Cast Iron / Al‑Si12 / AISI 304 | ‑ |
| Weight (typical) | 2.8‑3.4 | kg |
| Operating Temp. | ‑40 ~ +850 | °C |
| Flow Rate | ≥ 120 CFM | ‑ |
| Surface Finish | Ra ≤ 0.8 µm | µm |
| Lead Time (Standard) | 3‑5 business days | ‑ |
Where the 4d56 Manifold Excels
Heavy‑Duty Diesel Engines – Improves exhaust scavenging, reducing fuel consumption by **3‑5 %**.
Marine Generators – Corrosion‑resistant stainless‑steel option complies with ABS and IMO standards.
After‑Market Performance Kits – Lightweight aluminum version adds **12 %** power gain without compromising durability.
exhaust-manifold-with-turbo exhaust-manifold-in-engine
Case Study: A leading U.S. off‑road equipment manufacturer replaced its legacy manifolds with YD’s 4d56 aluminum version. Within 4 months, warranty claims fell 42 % and overall engine output rose 6 %.
Frequently Asked Questions
What is the minimum order quantity (MOQ) for the 4d56 exhaust manifold?
Standard MOQ is 500 pcs. For OEM/ODM projects we can lower it to 200 pcs with a small tooling surcharge.
Can you provide custom material or finish options?
Yes. Our foundry network supports cast iron, Al‑Si12, AISI 304/316, and surface treatments such as nitriding, powder coating, or ceramic coating.
What are the payment terms for first‑time buyers?
30 % T/T deposit, 70 % balance against BL copy. For verified accounts we accept L/C at sight.
How is shipping handled to the United States?
We offer both sea freight (20‑ft container, 25‑30 days) and air freight (3‑5 days). All shipments are fully insured and tracked.
Do you provide after‑sales technical support?
Our engineering team offers 24 / 7 email and WhatsApp support. We also provide on‑site troubleshooting for large OEM contracts.
Ready to Reduce Costs & Accelerate Production?
Limited‑time offer: **Free engineering sample** (up to 2 kg) shipped within 48 hours. No commitment, no hidden fees.
Request Free Sample Email Sales TeamOr WhatsApp us now: +86 1933 3738 338 Ben / +86 1933 3736 198 Linda
Customer Voices
- James K., Operations Manager, John Deere – “The 4d56 manifold’s lightweight aluminum version shaved 15 kg off our engine pack, improving fuel efficiency without sacrificing durability.”
- Susan L., Supply Chain Lead, Harley‑Davidson – “We received a 25 % price reduction and a 5‑day lead time. The ROI was realized in the first production run.”
- Tom R., Purchasing Director, Caterpillar – “Y‑D’s ISO‑9001 documentation made our internal audit a breeze. The quality consistency is remarkable.”
About the Author
Alex Cheng – Senior International Business Engineer, Hebei Yuanda Trade Co., Ltd.
With 15 years in metal‑casting supply chains across North America and Europe, Alex leads OEM/ODM projects for heavy‑duty engine components. He holds a B.Eng. in Mechanical Engineering (Tsinghua University) and is a certified ISO 9001 auditor.
Contact: info@ydcastings.com | Phone: +86‑311‑808‑126‑83
According to a 2025 industry survey, **38 %** of U.S. automotive parts buyers cited “unreliable supplier lead time” as the top barrier to scaling production. Get a faster, cheaper solution now. Heavy‑Duty Diesel Engines
Trusted By Industry Leaders
What Our Clients Say
Compliance & Certifications
ISO 9001, CE, RoHS, FCC, GS, CB, VDE, SAA, IPPC, and specific industry approvals (ASTM A536 for cast iron, AMS‑6417 for aluminum). All certificates are available on request.