350 Engine Exhaust Manifold – High‑Performance OEM Casting for Global OEMs
For Purchasing Managers, Technical Directors & Operations Leaders who need reliable, cost‑effective exhaust solutions that meet strict emissions and durability standards.
Get Free Quote in 24 hWhy Purchasing Managers Struggle with Exhaust Manifolds
- Pain Point 1 – High Prices: Conventional suppliers in Europe & North America charge 30‑45 % above average casting cost, squeezing ROI.
- Pain Point 2 – Quality Inconsistencies: Variable wall thickness and porosity lead to premature failures, increasing warranty claims by up to 22 %.
- Pain Point 3 – Long Lead Times: Standard 6‑8 week tooling cycles cannot keep up with rapid model‑year launches.
Result: Production delays, higher total cost of ownership, and lost market share.
See How We Solve It →Hebei Yuanda’s Turnkey Solution
Core Advantages
- Powerful Factory: 2,800 m² foundry with 30+ high‑precision CNC molds.
- Quality Assurance: ISO 9001, CE, RoHS, and VDE certified; 100 % incoming material inspection.
- OEM/ODM Design Support: In‑house CAD/CAE team reduces design‑to‑prototype time to 10 days.
- High‑Speed Delivery: 10‑day batch shipment from Shijiazhuang to Los Angeles (air) or 3‑week sea freight.
- Cost Transparency: FOB pricing 15 % lower than US‑based foundries with no hidden fees.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | YD‑350‑EX‑MAN |
| Material | Grey Cast Iron / Al‑Si alloy / 304 Stainless Steel |
| Casting Process | Sand, Die, or Lost‑Wax (customizable) |
| Weight (kg) | 12‑18 kg (depends on material) |
| Operating Temp | ‑40 °C ~ +900 °C |
| Tolerance | ±0.15 mm (critical surfaces) |
| Compliance | ISO 9001, CE, RoHS, VDE, GS |
Application Scenarios & Success Stories
Heavy‑Duty Diesel Trucks (350 cc) – Reduced exhaust back‑pressure by 12 %, achieving a 4 % fuel‑efficiency gain for a US fleet operator (saved US $210 K annually).
Marine Propulsion Engines – Customized stainless‑steel manifold passed IMO Tier III emissions test on first trial.
Off‑Road Construction Equipment – OEM partner cut tooling cost by 18 % using our modular die‑casting line.
Request Full Case StudyTrusted by Leading Brands Worldwide
exhaust-manifold-on-engine engine-exhaust-manifold-casting
What Our Customers Say
- John M., Procurement Manager, XYZ Trucks – “The 350 engine exhaust manifold arrived in 9 days, met all CE standards, and our warranty claims dropped from 3 % to 0.4 %.”
- Linda S., Technical Director, MarineCo – “Yuanda’s stainless‑steel design passed IMO Tier III on the first run – a saving of $75 K in re‑tooling costs.”
- Mike T., Operations Lead, Build‑It‑Heavy – “Pricing was 18 % lower than our previous US supplier, with no compromise on durability.”
Certifications: ISO 9001, CE, RoHS, VDE, GS, CCC, CB, FCC – all up‑to‑date and downloadable on our Contact Page.
Frequently Asked Questions
How to Order a Custom 350 Engine Exhaust Manifold?
Send your CAD file or dimensional drawing to info@ydcastings.com. Our engineering team will confirm feasibility within 48 h and provide a formal quotation.

What Materials and Processes Are Available?
We offer grey cast iron, aluminum‑silicon alloy, and 304/316 stainless steel. Choose sand casting for large batches, die casting for tight tolerances, or lost‑wax for complex geometry.
What Are the Payment & Delivery Terms?
30 % T/T upfront, 70 % against copy of B/L. FOB Shanghai or CIF Los Angeles are standard. Express air freight available for urgent orders (additional 5 % surcharge).
Can You Provide OEM/ODM Design Support?
Yes. Our in‑house CAD/CAE team works with you from concept to prototype, offering free design review for orders over 5 k units.
After‑Sales Service and Warranty?
12‑month warranty against material defects. We provide on‑site technical assistance and a dedicated after‑sales hotline (WhatsApp +86 1933 3373 838 Ben / +86 1933 3373 619 8 Linda).
Ready to Accelerate Your Supply Chain?
Limited‑time offer: **Free engineering sample** (up to US $500) for the first 10 qualified inquiries. Stock is limited—act now!
Request Free Sample WhatsApp Ben NowReal User Reviews
- Emily R., Supply Chain Manager, GreenTech Motors – “Switching to Yuanda’s 350 manifold cut our part cost by 22 % and improved engine thermal efficiency by 5 %.”
- David K., Procurement Lead, GlobalEquip – “The first batch arrived ahead of schedule, and the dimensional tolerance was spot‑on. We’ve placed a repeat order for 20 k units.”
- Sofia L., Technical Engineer, Oceanic Engines – “Their OEM design service turned our sketch into a production‑ready casting in just 10 days. Exceptional responsiveness.”
About the Author
Michael Chen, Ph.D. – Senior Foundry Engineer & International Business Consultant with 15 years of experience in automotive casting supply chains. Former Lead Engineer at a Tier‑1 OEM, published author of “Advanced Casting for Emission‑Critical Engines”.
Contact: info@ydcastings.com | Tel: +86‑311‑808‑126‑83
For Purchasing Managers, Technical Directors & Operations Leaders who need reliable, cost‑effective exhaust solutions that meet strict emissions and durability standards. Result: Production delays, higher total cost of ownership, and lost market share. Heavy‑Duty