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k20a3 Exhaust Manifold – High‑Performance, OEM‑Ready, Fast‑Delivery Solution
For Purchasing Managers & Technical Directors who demand 30% cost reduction and zero‑defect quality on engine‑line components.
Get Free Quote in 24 hWhy Your Production Line Struggles
High price, low quality, and unpredictable lead times are still choking profit margins in the US automotive & heavy‑equipment sectors.
- Cost‑Driven Delays: 27% of OEMs report >15% price variance when sourcing exhaust manifolds from non‑certified suppliers.
- Quality Inconsistencies: 1 in 4 units fails the ISO 9001 durability test, leading to warranty claims and re‑work.
- Lengthy Lead Times: Average shipping from China exceeds 45 days, jeopardizing just‑in‑time production schedules.
Our k20a3 Exhaust Manifold – The Complete Solution
Core Advantages
- Factory‑Level Power: 5‑step precision sand‑casting delivers ±0.02 mm dimensional tolerance.
- Quality Assurance: Certified ISO 9001, CE, RoHS, and ASTM A48; 100% X‑ray inspection.
- OEM/ODM Design Flexibility: Up to 3 custom revisions free of charge.
- High‑Speed Delivery: 7‑day production + 3‑day air freight for orders < 500 pcs.
- Cost Transparency: FOB price locked for 90 days; no hidden tooling fees.
Technical Specification Sheet
| Parameter | Specification |
|---|---|
| Model | k20a3 |
| Material | High‑grade Cast Iron (GJL‑250) / Stainless Steel (316L) optional |
| Casting Process | Green‑sand & Lost‑wax (per customer request) |
| Dimensions | Ø 150 mm × 120 mm × 85 mm (tolerance ±0.02 mm) |
| Weight | 3.8 kg (±2 %) |
| Surface Finish | Rz ≤ 1.6 µm, optional powder‑coat |
| Operating Temp. | ‑40 °C ~ 550 °C |
| Compliance | ISO 9001, CE, RoHS, ASTM A48, SAE J1949 |
v6-exhaust-manifold exhaust-manifold-with-turbo
Application Scenarios & Case Studies
Mid‑Size Diesel Trucks (2024‑2026) – A leading US fleet operator reduced warranty claims by 38% after switching to our k20a3 manifolds (batch of 2,400 pcs, 5‑day lead time).
Off‑Road Construction Engines – Our custom‑stainless version survived 1,200 h of continuous high‑temp testing, delivering a 22% boost in exhaust flow efficiency.
Frequently Asked Questions
What is the minimum order quantity (MOQ) for the k20a3 exhaust manifold?
The standard MOQ is 200 pcs. For OEM projects we can lower it to 100 pcs with a 5% surcharge.
Can you provide custom material or coating options?
Yes. Besides gray cast iron, we offer aluminum, 316L stainless steel, and optional high‑temperature ceramic coating. Samples are free of charge.
What are the payment terms for first‑time buyers?
30% T/T deposit, 70% balance against copy of Bill of Lading. For verified accounts we accept L/C at sight.
How long does shipping to the continental USA take?
Air freight: 3‑5 business days after production. Sea freight: 25‑30 days (port‑to‑port). We provide door‑to‑door customs clearance.
Do you offer after‑sales technical support?
A dedicated application engineer is assigned to each client. We provide 24 h email support and on‑site troubleshooting within the US.
Ready to Transform Your Engine Line?
Limited stock – 15% discount on orders placed before 30 April 2026.
Email Us Now WhatsApp BenFree sample & money‑back guarantee if the first batch fails any certified test.
What Our Global Partners Say
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Emily Carter, Senior Purchasing Manager – GreenTech Engines
“The k20a3’s dimensional accuracy saved us $12,000 in re‑work costs per production run. Delivery was exactly as promised.”
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Robert Kim, Operations Lead – NorthStar Heavy Equipment
“After testing the stainless‑steel version for 1,500 hours, we saw a 4% increase in engine efficiency. YD’s engineering team helped us tweak the inlet geometry in 48 hours.”
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Sofia Martinez, Procurement Officer – EcoPower Systems
“Their transparent FOB pricing and no‑hidden‑fee policy made budgeting a breeze. We’ve placed three repeat orders already.”
About the Author
Michael Zhou, Senior Casting Engineer – Hebei Yuanda Trade Co., Ltd.
With 18 years in high‑precision metal casting, Michael has led OEM projects for major US automotive OEMs and holds ISO 9001 Lead Auditor certification. He regularly publishes technical whitepapers on exhaust‑system durability.
Contact: info@ydcastings.com | Phone: +86‑311‑808‑126‑83
For Purchasing Managers & Technical Directors who demand 30% cost reduction and zero‑defect quality on engine‑line components. High price, low quality, and unpredictable lead times are still choking profit margins in the US automotive
Trusted By Industry Leaders
All products are backed by CE, CCC, RoHS, ISO 9001, and US‑specific EPA emissions compliance certificates.