1. Introduction
The APEX AMS1490 Intake Manifold Gasket Set is engineered to provide a reliable and leak-free seal for your vehicle's intake manifold. This set is crucial for maintaining optimal engine performance by preventing vacuum leaks and ensuring the correct air-fuel mixture delivery to the engine cylinders. APEX gaskets are manufactured to meet or exceed Original Equipment Manufacturer (OEM) specifications and industry standards, ensuring durability and a precise fit for various automotive applications.
2. Product Overview
The APEX AMS1490 Intake Manifold Gasket Set includes all necessary gaskets required for sealing the intake manifold. These components are designed for high performance and longevity, matching aftermarket kit contents and adhering to stringent quality controls.

This image displays the Apex AMS1490 Intake Manifold Gasket Set, showing the various gasket pieces included for a complete intake manifold seal.
3. Installation (Setup)
Important: Installation of an intake manifold gasket set requires mechanical knowledge and specific tools. It is highly recommended to consult your vehicle's service manual for detailed, model-specific instructions or seek professional assistance. Incorrect installation can lead to engine damage or performance issues.
General Installation Steps:
- Preparation: Ensure the engine is completely cool. Disconnect the vehicle's battery. Drain engine coolant if the intake manifold design requires it.
- Disassembly: Carefully remove all components obstructing access to the intake manifold. This typically includes air intake systems, fuel lines, electrical connectors, and vacuum hoses. Unbolt and remove the intake manifold according to your vehicle's service manual.
- Surface Cleaning: Thoroughly clean all mating surfaces on both the engine cylinder head and the intake manifold. Remove all traces of old gasket material, carbon deposits, and any debris. Ensure surfaces are dry and free of oil or grease.
- Gasket Placement: Position the new APEX AMS1490 gaskets onto the clean mating surfaces. Ensure correct orientation and alignment with all bolt holes and ports. Do not use sealants unless specifically instructed by your vehicle's service manual.
- Reassembly: Carefully place the intake manifold back onto the engine, aligning it precisely with the new gaskets. Install the bolts and tighten them to the manufacturer's specified torque sequence and values. Refer to your vehicle's service manual for precise torque specifications and patterns.
- Final Steps: Reconnect all previously removed components, hoses, and electrical connectors. Refill engine coolant if it was drained. Reconnect the battery. Start the engine and carefully check for any signs of leaks (coolant, oil, or vacuum).
4. Operation
Once properly installed, the APEX AMS1490 Intake Manifold Gasket Set functions by creating a tight, leak-free seal between the intake manifold and the engine cylinder head. This seal is critical for maintaining the integrity of the engine's vacuum system and ensuring that the air-fuel mixture is delivered consistently to each cylinder without interference from external air. A proper seal prevents vacuum leaks, which can lead to various engine performance issues.
5. Maintenance
Intake manifold gaskets are designed for long-term durability and typically do not require routine maintenance. However, it is advisable to periodically inspect the area around the intake manifold for any signs of leaks (e.g., coolant, oil, or vacuum leaks) during routine vehicle inspections or service appointments. Early detection of a leak can prevent further engine complications and ensure continued optimal performance.
6. Troubleshooting
If you experience any of the following symptoms after installation or during vehicle operation, it may indicate an issue with the intake manifold gasket or its installation:
- Vacuum Leaks: Symptoms include rough idle, engine misfires, reduced engine power, and a 'hissing' sound from the engine bay.
- Coolant Leaks: Visible coolant puddles under the vehicle or a noticeable drop in coolant level without an obvious external leak. This can also lead to engine overheating.
- Oil Leaks: Oil seepage or residue observed around the intake manifold area.
- Check Engine Light: An illuminated 'Check Engine' light on the dashboard, often accompanied by diagnostic trouble codes related to lean fuel conditions or misfires.
If any of these symptoms occur, it is recommended to have the vehicle inspected by a qualified mechanic to diagnose and address the issue promptly.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | APEX |
| Model Number | AMS1490 |
| Product Dimensions | 43.18 x 12.7 x 2.54 cm |
| Item Weight | 80 g |
| Material | OEM Quality |
| Color | Black |
| Unit Count | 1 Count |
| UPC | 667260714902 |
| GTIN | 00667260714902 |
| Manufacturer | Apex |
8. Warranty and Support
For specific warranty information or technical support regarding the APEX AMS1490 Intake Manifold Gasket Set, please contact APEX customer service directly. You may also refer to the official APEX website for additional resources. When contacting support, please ensure you have your product model number (AMS1490) and purchase details readily available.





