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Custom Ported & Polished Throttle Body 04-13 3.7L-4.7L Magnum

  • Model: TB Custums 3.7_4.7 Throttle Body
  • Shipping Cost: 29.95 shipping
  • 1Dropships direct from manufacturer
  • Manufactured by: TB Customs

Starting at: $289.99

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Our modified TB's give back much better throttle response and a noticeable power gain across the whole driving range with an extra punch at wide open due to the smoother and extra volume of air it delivers. Our modified TB's are unique as we have reworked them extensively giving you more features than the competition. They are optimized for maximum gains. For the money spent this is one of the simplest and most cost-effective mods you can make. Our TB's work excellent on stock to modified vehicles. They are an excellent value and performance improvement.

Fits the following vehicles with 4.7L/3.7L:

  • 2004-2009 CHRYSLER ASPEN
  • 2004-2011 DODGE DAKOTA
  • 2004-2009 DODGE DURANGO
  • 2004-2013 DODGE RAM 1500 PICKUP
  • 2004-2009 JEEP COMMANDER
  • 2004-2009 JEEP Grand Cherokee

    OVERSIZED Custom Ported TB FEATURES:

    This is a Fully Oversized reworked Factory TB. For those of you that require more air than our Standard Modified TB can deliver we Large Opening Custom Ported Throttle Body.

    With a Maximum Custom Ported Bore and matching Oversized Blade plus the Half Shaft these are the biggest and the highest flowing factory modified TB's made. No other competitor's factory modified TB outflows this one. It takes some effort to build these as they are much more labor intensive than our Standard TB's we sell. The price is set accordingly.

    The specifics of the Custom Ported TB's are as follows:

  • Front Side Taper Boring: The opening of the TB is Radiused and Taper Bored.
  • New Custom Blade with the correct factory angles
  • Half Shaft: Modified Factory Shaft. The top of the shaft is removed providing more airflow at wide open throttle.

    ORDERING INFO:

    We prefer if ship yours into us and we port it for you. However, if you wish to have us source a core for you, please select one from the list below that matches your throttle body/vehicle.

    For those that cannot tie up their vehicle, here are the part numbers for your vehicle.

    Part numbers for new throttle bodies are as follows:

  • Brand new 4.7L TB. Normally used in 08 -10 Dakota, 08-09 Durango, 08-09 Commander, 08-09 Grand Cherokee, 08-09 Aspen, 08-13 Ram 1500 with 4.7L V8 - Mopar 53032837AB or BOSCH 0280750205
  • New ones are NOT available anymore. 4.7L TB Normally used in 03-07 Dakota, 03-07 Durango, 06-07 Commander, 2005 Grand Cherokee, 2007 Aspen, 03-07 Ram 1500 with 4.7L V8) - Mopar Replacement 5114397AA
  • New ones are NOT available anymore. 3.7L TB (Normally used in 05-06 Dakota, 05-06 Durango, 2006 Commander, 05-06 Grand Cherokee, 05-06 Liberty, 05-06 Ram 1500 with 3.7L V6) - Mopar Replacement 5139073AB

    Bench Testing Results:
    Stock Throttle Body -

  • 25% Open = 125 CFM
  • 50% Open = 487 CFM
  • 75% Open = 638 CFM
  • 100% Open = 1178 CFM


    Ported Throttle Body -

  • 25% Open = 223 CFM
  • 50% Open = 582 CFM
  • 75% Open = 741 CFM
  • 100% Open = 1428 CFM!

    Ships direct from machine shop. Please allow 3-4 weeks for work to be done and throttle body shipped...

    Item Photo


  • This product was added to our catalog on Monday 27 December, 2021.

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