Airtex Fuel Pump Catalog: Your Complete Guide to Finding the Right Replacement Pump

Using the Airtex fuel pump catalog effectively is the fastest, most accurate way to find the correct replacement fuel pump for virtually any vehicle. Whether you're a professional technician running a busy shop, a dedicated DIY enthusiast tackling your own repairs, or an auto parts counterperson assisting customers, understanding how to navigate the comprehensive Airtex fuel pump catalog is essential. This extensive guide delves deep into the catalog's structure, deciphering its numbering systems, interpreting application charts, and leveraging its features to ensure you get the precise pump needed the first time, every time.

Understanding the Airtex Fuel Pump Catalog Structure

The Airtex fuel pump catalog isn't just a simple list; it's a detailed, organized system designed to help users locate parts based on multiple search criteria. Primarily, it functions as:

  1. Vehicle Application Lookup: This is the most common entry point. You select the Year, Make, Model, Engine Displacement, and sometimes specific details like Fuel Type (Gasoline/Diesel) or Fuel Delivery System (e.g., Carbureted, TBI, Multi-Port EFI). The catalog then returns a list of all compatible Airtex fuel pumps for that specific application. This includes OEM-style direct replacements and often higher-performance or universal options.
  2. Cross-Reference (Interchange) Lookup: If you have an existing part number from another manufacturer (OEM or aftermarket like Bosch, Carter, Denso, Delphi, Walbro, etc.), the Airtex catalog allows you to input that number. It will then show you the corresponding equivalent Airtex fuel pump part number(s). This is invaluable when replacing a pump that wasn't originally Airtex or upgrading from a failing unit.
  3. Product Detail Lookup: If you already know the Airtex part number (e.g., E2400, MAF0135, FPM0033), you can enter it directly into the catalog to pull up detailed specifications, compatible vehicle applications, installation kits required, warranty information, and technical diagrams. This confirms you have the right part or helps identify what it fits.

Deciphering Airtex Fuel Pump Part Numbers

Airtex fuel pump part numbers aren't random; they follow specific patterns that convey important information. Understanding these patterns aids significantly in identification and selection:

  • E-Prefix (e.g., E2000, E3248): Traditionally, these are the core "Electric Fuel Pump" numbers. These often represent the basic pump module or assembly designed as a direct replacement for the original equipment pump found inside the fuel tank. The E-number usually refers to the pump mechanism itself within a module kit.
  • MA-Prefix (e.g., MAF0135, MAH0087): These denote "Modular Assembly" kits. MAF typically indicates a "Modular Assembly Complete," which includes the fuel pump module (with integrated pump, sender, reservoir, etc.) and the necessary installation kit (lock ring, seal, strainer/sock filter, possibly wiring harness). MAH often indicates just the "Modular Assembly Housing" or incomplete module, requiring the pump element (usually an E-prefix pump) to be installed into it. The distinction between MAF and MAH is critical to avoid ordering an incomplete assembly.
  • FP-Prefix (e.g., FPM0033): Represents "Fuel Pump Module" kits, similar to MAF-prefix. These are complete, ready-to-install module assemblies designed for specific applications.
  • K-Prefix (e.g., K21-801): Signifies "Installation Kits." These contain essential components like the pump lock ring, gasket/O-ring seal, fuel strainer/sock filter, mounting hardware, and sometimes wiring adapters needed to install a replacement pump or module. Often, an E-pump (or a core module) requires a specific K-kit for the installation to be complete and leak-free. MAF/FP kits usually include their own specific installation components.
  • FS-Prefix (e.g., FS801): Designates "Fuel Strainer" or "Fuel Sock Filter" kits. These are the pre-filters attached to the inlet of the fuel pump. They are critical wear items that often need replacement with the pump or periodically. They are application-specific.
  • Bypass Codes: Numbers like 22001, 22006, 22009. These are internal Airtex identifiers for the actual pump element (the motor itself) used within a module. They are crucial when replacing only the pump motor inside an existing module housing (which is a common repair approach). Cross-referencing the bypass code ensures you get the correct internal pump motor.

Key Information Within the Catalog Listings

Beyond just listing part numbers, the catalog provides vital data:

  • Detailed Vehicle Application List: Shows exactly which model years, trim levels, and engine options the specific pump fits. Always double-check this against the vehicle you're working on.
  • Technical Specifications: Includes critical data points such as:
    • Operating Voltage (6V, 12V, 24V)
    • Fuel Pressure Rating (PSI or Bar)
    • Flow Rate (Gallons Per Hour - GPH or Liters Per Hour - LPH)
    • Inlet/Outlet Size and Type (e.g., 5/16", 3/8", quick-connect style)
    • Direction of Flow (e.g., "Radial" - side inlet/bottom outlet common in tanks vs. "In-Line" - straight inlet/outlet for external pumps).
    • Resistance Values (Ohms) for fuel level senders included in modules.
  • Component Parts Included: Explicitly lists what comes in the box (e.g., "Complete Module with Level Sender", "Pump Motor Only", "Includes Lock Ring and Seal"). This prevents confusion between a complete MAF kit and just an E-pump requiring additional parts.
  • Required Installation Kits (Kits To Buy): Lists the specific K-prefix installation kit(s) that MUST be used with a particular E-pump or module housing. Never assume an E-pump comes with an installation kit – the catalog will tell you which kit(s) to purchase alongside it. MAF/FP kits usually include their necessary parts.
  • Associated Parts: Shows related components often sold or replaced together, like fuel strainers (FS-prefix) specific to that pump application.
  • Detailed Diagrams and Images: Provides visual representations of the part, its orientation, inlet/outlet positions, and how it interfaces with the vehicle's fuel tank and lines.

Best Practices for Using the Airtex Catalog

Maximize accuracy and efficiency with these strategies:

  1. Use Multiple Search Methods: If possible, start with the vehicle application to see all compatible options. Verify the selection by cross-referencing the original part number (if removed) or another reputable brand's part number. Knowing the bypass code (if replacing only the internal pump motor) is crucial for that specific search.
  2. Prioritize Complete Module Assemblies (MAF/FP) for Tank Replacements: For integrated in-tank pumps, replacing the entire module assembly (MAF or FP) is almost always recommended over replacing just the internal pump motor (E-pump). Complete assemblies include critical updated components like the strainer, seal, and often updated wiring connections or reservoirs, reducing the risk of leaks and premature failure. The catalog makes it clear what constitutes a complete assembly.
  3. Never Skip the Required Installation Kit: If the catalog listing under "Kits To Buy" specifies a K-prefix number for an E-pump or module housing, you MUST purchase and use that specific kit. These kits contain vital sealing components (O-rings, gaskets) that are crucial to prevent fuel leaks and ensure proper pump mounting. Reusing old seals is a major cause of post-replacement issues.
  4. Pay Close Attention to Visual Details: Use the provided diagrams and images. Compare the inlet/outlet positions, electrical connector shape, mounting flange style, and overall configuration to the pump you are removing. Match component appearance to the catalog image whenever possible.
  5. Check Specifications Against Vehicle Requirements: While the application should ensure compatibility, quickly verify that the listed PSI and GPH/LPH ratings fall within your vehicle manufacturer's specified range for your engine, especially if dealing with high-performance applications or symptoms pointing to underperforming fuel delivery.
  6. Confirm Fuel Line Sizes and Connectors: Ensure the pump's inlet and outlet sizes (e.g., 5/16", 8mm) and connector types (e.g., press-on hose barb, specific quick-connect style) match what is on the vehicle or the lines you plan to connect. Incorrect connections cause leaks or poor fitment.
  7. Note Included Accessories: Understand if the strainer (sock filter) is included. If not, ensure you order the correct FS-prefix strainer kit separately. A missing or incorrect strainer can lead to pump failure.
  8. Understand Kit Variations: Vehicles, even the same year/model, might have different pumps based on production date, fuel system type, or region. The catalog lists all variations – select the one that precisely matches the details of the vehicle you are servicing. Don't assume one size fits all.

Navigating Common Challenges

  • "No Results Found"? Double-check the year, make, model, and engine selection for typos. Broaden the search slightly (e.g., engine size range) if applicable. Consider searching by the VIN if available and supported by the catalog platform. Check if you need a pump for the main fuel tank or a secondary (auxiliary) tank.
  • Multiple Pumps Listed for One Vehicle: This is common! Causes include:
    • Different factory options (e.g., single vs. dual fuel tanks).
    • Different fuel systems (e.g., return vs. returnless).
    • Different engine performance packages.
    • Mid-year production changes.
    • Pump located inside the tank vs. externally on the frame.
    • Updated designs superseding older ones. Carefully compare the specifications and especially the detailed "Application" description within each part number listing to identify the correct one. Diagrams are invaluable here.
  • Distinguishing MAF vs. MAH vs. E-Pump: Remember MAF (or FP) = Complete Module Assembly (usually the best choice). MAH = Incomplete Module Housing (needs E-pump installed plus installation kit). E-Pump = Internal Pump Motor Only (requires correct MAH or housing and installation kit and usually a strainer). The catalog descriptions are clear – read them meticulously.
  • Obsolete or Updated Part Numbers: Airtex constantly updates designs. The catalog should indicate if a number has been superseded by a newer one. Always use the latest part number specified.

Beyond Basic Lookup: Advanced Catalog Features

Modern Airtex catalogs (especially online or software-based ones used by parts stores and distributors) offer additional features:

  • Technical Bulletins & Service Information: May provide access to relevant TSBs (Technical Service Bulletins), installation tips, torque specs, or common failure patterns related to specific pumps or vehicles.
  • Warranty Information: Links to or displays the specific warranty terms for each Airtex pump part number.
  • Retailer Locator / Where To Buy: Helps users find local or online sources for Airtex products.
  • Digital Diagram Zoom & Pan: Allows for detailed inspection of complex assembly views.
  • Compatibility with Other Airtex Products: Might show compatibility with Airtex sending units or other fuel system components.

Why the Airtex Catalog is Indispensable

Attempting to select a fuel pump without using a comprehensive catalog like Airtex's is a recipe for errors, delays, comebacks, and potential safety hazards. Fuel pumps are vital, application-specific components. The catalog provides:

  • Accuracy: It consolidates vast engineering and application data to pinpoint the right part.
  • Efficiency: Saves significant time compared to guesswork, trial-and-error, or relying on potentially inaccurate supplier listings.
  • Completeness: Shows the entire solution, including any essential kits or accessories required for a proper, safe, and lasting installation.
  • Clarity: Resolves ambiguities about pump types (E vs. MAF vs. MAH), included components, necessary kits, bypass codes, and compatibility.
  • Confidence: Provides technicians and DIYers with the assurance they've selected the correct part backed by manufacturer data.
  • Safety: Prevents installation of incorrect components that could lead to fuel leaks, electrical issues, or poor vehicle performance.

Mastering Your Airtex Fuel Pump Selection

The Airtex fuel pump catalog is the definitive, essential tool for navigating the complexities of modern fuel system replacements. By understanding its structure, learning to decipher part numbering conventions, carefully interpreting the wealth of application data and technical specifications provided, and following best practices (especially regarding required installation kits), you transform a potentially frustrating process into a streamlined, accurate, and highly successful one. Always consult the current Airtex fuel pump catalog – whether online, in software, or in print – as your primary source of truth before purchasing or installing any fuel pump. Investing time in mastering this catalog prevents costly mistakes and ensures your vehicle or your customer's vehicle receives the correct fuel delivery solution designed for reliable operation.

Back to blog