CN3-6A270-AK Intake Camshaft for JMC Vigus 2.4 TDCi
The CN3-6A270-AK intake camshaft handles valve timing on JMC’s 4D30 intake camshaft platform fitted to Vigus pickups and N-series light commercial vehicles. Getting intake valve lift and duration right determines whether the cylinder fills properly — mess it up and you’ll see poor throttle response, black smoke under load, and higher fuel consumption than the vehicle should be using. Worn intake cam lobes typically show up as rough idle, loss of power in the mid-range, and increased engine noise during cold starts.
MC’s 4D30 diesel sits under the bonnets of several commercial vehicle platforms — Vigus pickups in 2.4 TDCi form, N800 and N900 light trucks in 2.5 format. The JMC Vigus 2.4 TDCi intake Camshaft profile stays constant across power outputs. If you’ve been chasing P0340 camshaft position sensor codes or noticing valve train noise that gets worse when the engine warms up, check the intake cam lobes for wear before you start replacing expensive sensors.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | CN3-6A270-AK Intake Camshaft |
| OE Part Numbers | CN3-6A270-AK |
| Engine Platform | JMC 4D30 Diesel |
| Engine Displacement | 2.4L / 2.5L |
| Camshaft Type | Intake (Inlet) |
| Warranty | 12 months or 12,000 miles from the date of Ex-factory |
| Packing | Neutral Packing or Customer Required |
| MOQ | 5 pcs |
| Packing Quantity | 5 pcs per box |
| Place for Origin | Ningbo City of China |
| Brand | Wellgine |
CN3-6A270-AK Intake Camshaft for JMC 4D30 and Vigus 2.4 TDCi Applications
Sourcing a CN3-6A270-AK intake camshaft for the 4D30 platform is rarely a single-factor decision. Distributors and engine rebuilders normally evaluate machining accuracy, repeat batch consistency, supply structure and technical communication before confirming long-term cooperation. The following points outline how production control and supply management are structured for 4D30 intake camshaft applications, including JMC Vigus 2.4 TDCi intake camshaft and JMC N800 camshaft configurations.
- Quality Control: For the CN3-6A270-AK genuine intake camshaft, dimensional accuracy is prioritised over surface appearance. On the 4D30 engine platform, intake timing deviation can influence idle stability and mid-range torque delivery. Journal diameter, lobe lift and phase angle are controlled during machining, and runout is verified before packing to reduce the risk of post-installation valve train noise.
- Wholesale Orientation: This product is structured for distributors and rebuilding workshops rather than single retail sales. Bulk orders of the high quality JMC 4D30 intake camshaft are planned within a stable production schedule, allowing predictable replenishment instead of irregular market sourcing.
- Factory-Direct Supply: All units are produced and dispatched directly from the manufacturing facility in China, without European warehouse stock. This allows clear origin traceability and controlled lead times, which is important for long-term B2B cooperation.
- Batch Consistency: Engine rebuilders often require repeat orders over time, and variation between shipments creates unnecessary fitting issues. Each batch of the direct fit intake camshaft CN3-6A270-AK follows fixed machining parameters and inspection standards. This ensures the cam profile and bearing dimensions remain consistent across production cycles.
- After-Sales Technical Support: Technical confirmation regarding engine code, compatibility with JMC Vigus or N800 applications, and installation considerations can be discussed before shipment. Direct communication with the factory side helps reduce mismatch risk and improves resolution efficiency if feedback arises.
Functional Role in the Engine System
The CN3-6A270-AK intake camshaft belongs to the engine valve timing system. Its primary role is to control the opening timing, lift height, and closing angle of the intake valves, ensuring stable air intake during both low-speed urban driving and sustained highway load.
On the 4D30 engine, intake camshaft wear typically accelerates when oil change intervals are extended or oil pressure is unstable. During rebuilds, replacing the intake camshaft together with lifters and checking cam journals is standard practice to avoid premature valve train noise.
FAQ
1. Is the CN3-6A270-AK intake camshaft a direct replacement for the original JMC part?
Yes, this CN3-6A270-AK intake camshaft matches the factory dimensions and tolerances on JMC 4D30 series engines. It installs directly in place of the worn original without any machining or adjustments in typical workshop conditions. Mechanics working on JMC Vigus and N800 vehicles fit it routinely during timing chain or top-end repairs.
2. Is CN3-6A270-AK an intake or exhaust camshaft?
CN3-6A270-AK is strictly an intake camshaft. It must not be interchanged with the exhaust camshaft (commonly CN3-6A273-AK). The intake camshaft lobe profile and timing phase are different from the exhaust side. Installing the incorrect shaft can lead to valve timing misalignment and unstable engine operation on the 4D30 intake camshaft system.
3. Which vehicles use the CN3-6A270-AK intake camshaft?
This part is used on JMC vehicles equipped with the 4D30 diesel engine, including JMC Vigus 2.4 TDCi intake camshaft applications and certain JMC N800 camshaft configurations. Compatibility should always be confirmed by engine code rather than vehicle name alone, as cylinder head design must match the intake camshaft specification.
4. Is this a direct replacement for the original part?
Yes, the direct fit intake camshaft CN3-6A270-AK follows the original OE timing marks and journal dimensions. It installs using standard workshop procedures without modification. When replacing a 4D30 intake camshaft, correct alignment with the timing chain and crankshaft reference marks remains essential.
5. What symptoms indicate a worn 4D30 intake camshaft?
Common signs of intake camshaft wear include irregular idle, reduced throttle response, valve train noise, and decreased engine efficiency under load. On high-mileage JMC 2.5 intake camshaft applications, lobe wear may also affect valve lift, leading to reduced cylinder filling and uneven combustion.
6. Does this intake camshaft require ECU recalibration?
No ECU recalibration is required when replacing the camshaft with a correct specification CN3-6A270-AK genuine intake camshaft. Since the lobe profile matches OE timing parameters, engine management settings remain unchanged when installation is correctly performed.
7. How is dimensional accuracy controlled during production?
The high quality JMC 4D30 intake camshaft is machined under controlled tolerances for journal diameter and lobe geometry. Runout and timing reference alignment are inspected before packing. These controls reduce the risk of valve train noise or premature wear after installation.
8. Is this suitable for engine rebuilding businesses?
Yes. The CN3-6A270-AK intake camshaft is frequently used by engine rebuilders handling 4D30 intake camshaft overhaul work. Batch consistency is maintained to ensure that repeat orders do not introduce dimensional variation between shipments.
9. Is bulk purchasing available for distributors?
The product is structured for wholesale supply. Distributors handling JMC Vigus 2.4 TDCi intake camshaft or JMC N800 camshaft demand can arrange recurring bulk orders with defined production lead times. Supply is factory-direct without European warehouse stock.
10. How does the CN3-6A270-AK intake camshaft differ from lower-grade aftermarket parts?
Lower-grade aftermarket camshafts may show variation in lobe lift or journal diameter between batches. The direct fit intake camshaft CN3-6A270-AK supplied here follows fixed machining parameters and inspection flow, reducing inconsistency that can affect engine timing stability.
11. Do you offer technical support for professional installers?
Yes, we provide comprehensive technical support including installation guidance, torque specifications, timing procedures, and troubleshooting assistance. Our engineering team offers direct support to B2B partners to ensure successful installations and customer satisfaction.
12. How do I verify compatibility with specific engine codes?
Provide your vehicle’s VIN, model, year, and engine type, and we will verify compatibility free of charge to ensure you order the correct part.
13. What is your terms of delivery and payment?
EXW, FOB. Generally, 30% T/T deposit, and balance 70% T/T balance before delivery.
14. What is the ordering process and delivery time?
Please contact our sales team via the website or email for bulk pricing and quotations. Stocked items are shipped promptly, and special orders can be arranged with agreed delivery schedules.For the complete step-by-step ordering process, and our full terms, please view our Service Page.