Air and Fuel› Intake Manifolds and Components

Modern Muscle

3.8L Ported Throttle Body 68mm

$299.00

SKU: J4P-MMP-38PTB

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Modern Muscle 3.8L Ported Throttle Body is a 68mm performance upgrade for 2007-2011 Jeep JK 3.8L V6 Gen 1 engines.
Show original supplier description
The Modern Muscle 3.8L Ported Throttle Body is engineered to enhance the performance of 2007-2011 Jeep Wrangler JK models equipped with the 3.8L V6 Gen 1 engine. This 68mm throttle body features a dual-side porting design, differentiating it from competitors and maximizing airflow for improved results. Installation of this throttle body is straightforward and does not require any tuning. However, users should exercise caution during installation: do not overtighten the hose clamp on the throttle body intake to prevent damage, and ensure the adapter boot clamp is not tightened beyond 10 ft-lbs. The manufacturer, MMX4x4, will not be held responsible for breakage resulting from improper installation. Please note that this product is currently on backorder with MOPAR and has no confirmed production date. Additionally, it is essential to check local and state laws regarding emissions compliance before purchasing this product.
Vehicle Symptoms
  • Loss of power during acceleration
  • Sluggish throttle response
  • Engine hesitation when pressing gas
  • Poor fuel economy
  • Check engine light for throttle position sensor
Relevant Conversations
  • 3.8L Jeep Wrangler throttle body upgrade
  • ported throttle body JK 68mm
  • Modern Muscle throttle body review
  • Jeep JK slow acceleration fix
  • throttle body replacement 2007 Wrangler
  • P0121 on Jeep 3.8L
  • increase horsepower 3.8L Jeep
  • 68mm throttle body vs stock
  • J4P-MMP-38PTB installation
  • throttle body hesitation 3.8L V6

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandModern Muscle
Part NumberJ4P-MMP-38PTB
CategoryAir and Fuel
5,000+ Trusted brands
1M+ Enthusiasts
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(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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