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Deegan 38 by Mammoth Cold Air Intake (12-18 3.6L Jeep Wrangler JK)Find parts that fit my vehicle

Item J153929
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-10% $134.99 kit Was $149.99

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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features & Specs

      • Improves Airflow for More Power
      • Increases Throttle Response and Performance
      • Steel Intake Tube
      • Textured Black Finish
      • Reusable, High Flow Air Filter
      • Simple Bolt-On Installation
      • No Computer Re-Tune Required
      • Fits 2012-2018 3.6L Jeep Wrangler JK Models

      Description

      Better Flow for More Power. Improve the power and performance of your 2012-2018 3.6L JK Wrangler with a Deegan 38 Cold Air Intake. By replacing your Wrangler's restrictive factory intake with a high flow filter assembly, you will see and feel a noticeable increase in rear wheel horsepower and torque. This Deegan 38 Intake not only improves airflow for an increase in power, but it will also add an aggressive appearance to the engine bay with its textured black steel intake tube.

      No Tune Required. Deegan 38 engineered its Cold Air Intake to improve the performance of your V6 Wrangler without the need of reprogramming your computer. By utilizing flow dynamics, this Intake will increase power using the original factory tune. Even though a re-tune is not required for operation, ExtremeTerrain recommends a custom tune to reprogram the vehicle's computer (ECU) to get the best possible performance from this Cold Air Intake.

      Reusable Air Filter. The included high flow air filter effectively filters out power robbing particles with its multi-layer design. The specially-treated media creates a sticky surface to capture microscopic contaminants before they can enter your engine and do harm. Seeing that the filter is reusable, there is no need to buy a new filter every few thousand miles. You can just clean the filter, re-oil it, and reinstall - saving yourself money in the long haul.

      Simple Bolt-on Installation. Deegan 38 designed its Cold Air Intake kit to be a direct bolt-on replacement. With no special tools or extra modifications required, installation can be completed in under an hour. All parts and detailed instructions are included.

      Application. This Deegan 38 Cold Air Intake; Textured Black is designed to fit 2012-2018 Jeep Wrangler JK models equipped with the 3.6L V6 engine.

      Deegan 38 by Mammoth J153929

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Install Details & What's in the Box

      Installation Info

      What's in the Box

      • (1) Air Filter
      • (1) Intake Tube
      • (1) Heat Shield Base
      • (1) Heat Shield Surround
      • (1) Intake Coupler
      • (1) Upper Weatherstrip
      • (1) Air Filter Weatherstrip
      • (2) Zip Ties
      • (2) Hose Hold-Downs
      • (1) Allen Key
      • (4) 3” Hose Clamps
      • (2) 1” Hose Clamps
      • (1) Rubber Grommet
      • (1) Rubber Insulator with Studs
      • (6) M5x0.8 Bolts, Nuts, & Washers
      • (2) M6x1.00 x 45mm Bolts
      • (4) M6 Flat Washers
      • (2) M6 Spacers
      • (2) M8 Locking Nuts
      • (2) M8 Flat Washers

      Warranty

      Deegan38 by Mammoth offers our valued customers the following Limited Warranty on all Deegan38 by Mammoth product purchased after September 1st, 2026.

      What is Covered

      Subject to the terms, exclusions and limitations herein, and with respect only to products first sold in the United States, Deegan38 by Mammoth warrants that its products shall be free of manufacturing defects for the lifetime of the product and finish defects, including rust & corrosion, for three (3) years from the date of initial retail purchase when the Deegan38 by Mammoth product is installed and used on purchaser's vehicle according to supplied product installation instructions and/or warnings. This Limited Warranty is made only with respect to the initial purchaser and is not transferrable. Deegan38 by Mammoth reserves the right to require proof of purchase as a condition of this Limited Warranty and to make future revisions to this product or its Limited Warranty without obligation to provide notice of same to purchaser or to conform existing product to future revisions. Any change to this warranty made after purchase may be applied retroactively at the sole discretion of Deegan38 by Mammoth.

      What is Not Covered

      Your Deegan38 by Mammoth Limited Warranty does not cover damage or claims to any component, vehicle, or person other than the Deegan38 by Mammoth product purchased. Your Limited Warranty is expressly limited to replacement of the item itself shall Deegan38 by Mammoth determine item was not free of defect. As such, this Limited Warranty does not cover damage or claims to any component, vehicle, or person Deegan38 by Mammoth determines to have been damaged by or subjected to:

      • Installation damage, collision damage, alteration, modification, misuse or failure to maintain.
      • Damage in any part attributable to:
        1. vehicle systems or components or
        2. combination with non- Deegan38 by Mammoth products.
      • Normal wear and tear/product deterioration.
      • Theft, vandalism or other negligent or intentional damage.

      Remedy Limited to Repair/Replacement:

      The exclusive remedy provided for products covered under this Limited Warranty shall be, upon Deegan38 by Mammoth's inspection and at Deegan38 by Mammoth's option, either repair or replacement of product or parts (new or refurbished). Any parts repaired or replaced will be considered part of the original product and will not extend the term of Limited Warranty. Customers requesting warranty consideration should first contact the independent distributor selling your product to obtain a Returned Goods Authorization number. All removal, shipping, and installation costs are customer's responsibility. If a replacement part is needed before your part can be returned, you must first purchase the replacement part. Then, if Deegan38 by Mammoth determines the part warrantable, you will be credited the purchase price of that part.

      This warranty is the only warranty made in connection with the purchase of this product. Deegan38 by Mammoth neither assumes nor authorizes any manufacturer, vendor, retailer, other person or entity to assume for it any other obligation or liability in connection with its products or this Limited Warranty.

      Other Limitations - Exclusion of Damages - Your Rights Under State Law:

      • In consideration of the purchase price paid, neither Deegan38 by Mammoth nor any independent distributor are responsible for any loss of use or time, rental costs, or for any incidental, consequential, punitive or other damages (whether arising in tort or contract) you may have or incur in connection with your vehicle, or your Deegan38 by Mammoth product. Your exclusive remedy hereunder is repair/replacement of the item itself or refund as described above at Deegan38 by Mammoth's option. All implied warranties of merchantability and fitness for a particular purpose are hereby disclaimed or limited to the extent allowed under your jurisdiction.
      4.6

      Customer Reviews (78)

      Questions & Answers

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      Will It Fit My Wrangler

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      • JK Wrangler 4 Door - 12, 13, 14, 15, 16, 17, 18