AEM Water Methanol Reservoir Cap

Product Overview

AEM Water Methanol Reservoir Cap from AEM is identified by manufacturer part number 30-4508. This replacement cap ensures a secure, leak-free seal for your water/methanol reservoir, maintaining system integrity for consistent performance in high-performance vehicles. Crafted with precision, this cap is the go-to solution for racers and tuners who demand quality and dependability in their forced induction or high-compression naturally aspirated setups. Why Choose the AEM? The AEM Reservoir Cap stands out as the best fit for maintaining the functionality of your AEM Water/Methanol Injection System.

Key Features

• Supports compatible AEM water-methanol systems; verify system generation, hose or fitting size, electrical connection, and intended function.
• New AEM component supplied in the configuration shown and described on this page.
• Exact application and included components should be verified before installation.

Fitment

AEM 30-4508 is a universal or specification-matched component. Confirm dimensions, connectors, ranges, ports, fittings, electrical requirements, and system compatibility before ordering.

Specifications

What’s Included

The exact water meth components product identified by AEM 30-4508. Sensors, wiring, fittings, hardware, tuning, or accessories are included only when specifically shown or stated.

About AEM

AEM develops performance electronics, monitoring, fueling, ignition, and water-methanol products for enthusiast and motorsport applications. Black Ops Auto Works organizes AEM listings by exact part number and available application data to support accurate product selection.

Related Parts

• AEM Water / Methanol Inline Injection Filter
• AEM Water / Methanol Injection 6-Amp Recirculation-Style Pump 200psi for One-Gallon Kit **replacemen
• Shop the complete AEM collection

Frequently Asked Questions

What is the 30-4508?

It is the AEM water meth components product described on this page in the listed configuration.

How do I confirm fitment?

Match the complete vehicle, engine, trim, system, connector, dimensions, and every application note before ordering.

Can I select this product by appearance alone?

No. Similar-looking components can use different connectors, dimensions, ranges, ports, calibrations, or mounting points.

What is included?

Only the components specifically identified on this product page are included; related sensors, wiring, fittings, hardware, or accessories may be separate.

Does this product require tuning?

Tuning depends on the product and vehicle. Changes involving airflow, fueling, ignition, boost, or water-methanol delivery may require calibration.

Is professional installation recommended?

Yes when installation involves fuel, wiring, pressurized systems, sensor scaling, engine timing, or calibration.

Is this product new?

Yes. The item condition is new unless this page explicitly states otherwise.

What should I verify before checkout?

Confirm the application, specifications, included items, connector or plumbing requirements, and installation notes.

Installation Instructions

1. Confirm AEM 30-4508 and the complete application before disassembly.
2. Inspect the component and compare every connector, port, mounting point, dimension, and included item before modifying the vehicle.
3. Follow current AEM instructions and the vehicle service procedure for wiring, plumbing, fasteners, sensor placement, and calibration.
4. Route wiring, hoses, and components away from heat, sharp edges, moving parts, and electrical noise sources.
5. Test the complete system, check for leaks or faults, and verify safe operation before driving.

California Proposition 65 Warning

WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.