2009-2015 Nissan Maxima / 2007-2012 Altima 3.5 Underdrive Performance Lightweight Crank Pulley - 400344 STILLEN

2009-2015 Nissan Maxima / 2007-2012 Altima 3.5 Underdrive Performance Lightweight Crank Pulley - 400344

  • $136.51
  • Save $22.88


*** IMPORTANT NOTE: Order processing can take up to 3 business days. Shipping timeframes start after the order processing has been completed. ***

Underdrive Performance Lightweight Crank Pulley for 2009-2015 Nissan Maxima / 2007-2012 Altima 3.5

This pulley requires the use of part number 400344B which is the correct length serepentine belt.

STILLEN is proud to release our line of high performance STILLEN Lightweight Standard / Underdrive Pulleys for popular Nissan/Infiniti applications.  OEM steel pulleys, especially crank pulleys, can be quite heavy, robbing horsepower.

Upgrading these pulleys to a STILLEN 6061 Aluminum set reduces rotating mass, allowing for easier and quicker revving of the engine, resulting in increased performance.

In the case of underdrive applications, the reduced outside diameter of the pulley allows for the accessories to run slower, freeing up additional horsepower from the drivetrain, and putting that recovered power to the wheels.

STILLEN has a long heritage of machining precision pulleys for our supercharger kits, and used that expertise to create pulleys with a bold new design.  Weight savings is dramatic, up to 80% lighter than stock and up to 10% lighter than other aftermarket pulleys. We have seen power gains of up to 10+ HP at the wheels.

STILLEN Lightweight Standard / Underdrive Pulley Features:

  • 6061 Aerospace Grade Billet Aluminum
  • Bold New Design Maximizing Performance, Strength and Minimum Weight
  • 304 Stainless Steel Sleeves for Main Seal Contact Points For Durability
  • Stock Timing Marks Maintained – Keyways are Precision Broached
  • CNC Turned, Milled and Balanced from CAD Designs
  • Underdrive Applications – 20% Approximate Underdrive
  • Not for sale in California

Product Disclaimer:

Emissions Equipment Tampering Warning: In many states, tampering with your vehicle’s emissions equipment is unlawful. Our products are designed and sold for sanctioned off-road/competition non-emissions controlled vehicles only and may never be used on a public road or highway.

Using our products for street/road use on public roads or highways is prohibited by law unless a specific regulatory exemption exists (more information can be found on the SEMA Action Network website www.semasan.com/emissions for state-by-state details in the USA).

CARB-Restricted Areas: CARB-Restricted products, will not be shipped to state of California under any circumstatences.

Official Air Resource Board Link: ARB State Adoption Link

Customer Responsibility: It is the responsibility of the installer and/or user of this product to ensure compliance with all applicable local and federal laws and regulations. Please check with your local vehicle authority before purchasing, using, or installing any of our products.

By proceeding with the purchase and use of our products, customers affirm their commitment to adhere to the terms outlined in this comprehensive product disclaimer. We reserve the right to update this disclaimer as necessary.


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