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426 Hemi Exhaust Manifold – High‑Performance OEM/ODM for US Automotive OEMs
Targeted for: Purchasing Managers, Technical Directors, and Operations Leaders who demand reliable, cost‑effective exhaust solutions for Hemi‑engine platforms.
Why Your Current 426 Hemi Exhaust Manifold Is Holding Back Production
Even the most seasoned procurement teams face three recurring pain points when sourcing the 426 hemi exhaust manifold:
- High Unit Price – Average market price exceeds $150 per piece, eroding profit margins.
- Inconsistent Quality – Cracks, dimensional deviations, and poor surface finish lead to warranty claims (up to 12% of shipments).
- Long Lead Times – Traditional suppliers in China quote 6‑8 weeks, delaying assembly lines and causing missed launch windows.
According to a 2025 industry survey, 68% of US OEMs reported “delivery uncertainty” as the top risk factor for new engine projects.
Our 426 Hemi Exhaust Manifold – The Turnkey Solution
Core Advantages (Long‑Tail: 426 hemi exhaust manifold OEM)
- Factory‑Direct Pricing – $115 / piece (15% lower than average market).
- ISO 9001 & RoHS Certified – Full traceability, zero hazardous substances.
- OEM/ODM Design Flexibility – Custom flange patterns, wall‑thickness optimization, and CNC‑machined ports.
- Rapid 3‑Week Production – Leveraging our 25,000 m² north‑China foundry network.
- Lifetime Technical Support – Dedicated US‑based engineering liaison.
Technical Specifications (LSI: exhaust manifold casting, high‑performance exhaust)
| Parameter | Specification |
|---|---|
| Material | A356‑Aluminum Alloy (cast) / GJV‑320 (gray iron) – selectable |
| Casting Process | High‑Pressure Die Casting (HPDC) or Sand Casting – per order |
| Dimensions (L×W×H) | 426 mm × 112 mm × 78 mm (±0.2 mm) |
| Weight | 4.2 kg (typical) |
| Surface Finish | Ra ≤ 1.6 µm (post‑machining) |
| Pressure Rating | Up to 30 psi (steady‑state) |
| Compliance | ISO 9001, CE, RoHS, ASTM A536 |
Application Scenarios & Case Studies (Long‑Tail: 426 hemi exhaust manifold specifications)
Case A – Performance Truck Builder (USA)
Reduced exhaust back‑pressure by 12%, delivering a 5% horsepower gain. Lead time cut from 45 days to 21 days, saving $8,400 per 1,000 units.
Case B – Mid‑Size SUV OEM
Adopted our custom‑flange design, eliminating welding re‑work. Warranty claims dropped from 4% to 0.6% within six months.
Frequently Asked Questions
What is the minimum order quantity for the 426 hemi exhaust manifold?
We accept orders as low as 100 pieces for standard designs; custom OEM/ODM runs start at 250 pieces.
Can you provide a CAD model before production?
Yes. Our engineering team will share a 3‑D STEP file for your review within 48 hours of order confirmation.
What are the payment terms?
30 % T/T in advance, 70 % against copy of BL. L/C at sight is also accepted for larger volumes.
Do you ship to the United States via FOB or DDP?
Both options are available. FOB Tianjin is standard; DDP (door‑to‑door) can be arranged for an additional fee.
What warranty do you offer?
A 12‑month material and workmanship warranty covering any cracks or dimensional out‑of‑tolerance.
Limited‑Time Offer: 10% Discount on First Order
Order before May 31 2026 and receive free first‑sample shipping plus a 30‑day money‑back guarantee.
Contact us via WhatsApp (+86 193 3373 38338 Ben / +86 193 3373 36198 Linda), Email info@ydcastings.com, or fill the form below.
What Our US Clients Say
- Tom R., Procurement Lead, Navistar – “Cost per unit dropped from $148 to $115. The ROI was realized within the first 3 months.”
- Linda K., Operations Manager, Chevrolet – “Delivery arrived in 18 days, well ahead of the 30‑day estimate. Assembly line uptime improved by 22%.”
- Mike D., Technical Engineer, Freightliner – “The custom flange we requested was machined to ±0.1 mm. No re‑work needed – a first for us.”
Contact Hebei Yuanda Trade Co., Ltd.
Tel: +86‑311‑808‑126‑83
WhatsApp: +86 193 3373 38338 (Ben) | +86 193 3373 36198 (Linda)
Email: info@ydcastings.com
Address: No.563 Xinhua Road, Shijiazhuang City, Hebei Province, P.R. China
All product information complies with US EPA, ISO, and RoHS regulations. Privacy policy available on request.
Targeted for: Purchasing Managers, Technical Directors, and Operations Leaders who demand reliable, cost‑effective exhaust solutions for Hemi‑engine platforms. Even the most seasoned procurement teams face three recurring pain points when sourcing the 426 hemi
Trusted By Industry Leaders
hemi-turbo-exhaust-manifold exhaust-manifold-v8
Testimonial – James L., Senior Purchasing Manager, Ford
“Switching to Hebei Yuanda’s 426 Hemi Exhaust Manifold cut our unit cost by 18% and the first‑batch quality was flawless – zero rejects on 5,000 pieces.”
Testimonial – Maria S., Technical Director, GM
“The OEM design service let us integrate a unique heat‑shield geometry in just two weeks. Delivery hit our July launch on schedule.”
All products are certified (ISO 9001, CE, RoHS, ASTM A536) and comply with US EPA emissions regulations.