Banks Power 18-20 Jeep 3.6L Wrangler (JL) Ram-Air Intake System - Dry Filter

The Banks Power 41843-D is the Ram-Air intake system with a dry, washable filter for the Jeep Wrangler JL with the 3.6L Pentastar V6. It replaces the factory airbox and intake tube with a sealed Banks housing, a smooth intake tube and a hose to the throttle body. JL owners usually shop for this when the stock airbox is cracked or worn, when they want a filter they can clean instead of throwing away, or when they want a sealed housing on a Jeep that sees dust and water crossings. The dry filter version suits owners who do not want to deal with filter oil.

What the Ram-Air system does on a 3.6L JL

The Banks housing sits in the same spot as the factory airbox, on the factory rubber grommets, and bolts to the inner fender with the factory bolt. The filter seats inside the housing and the Banks tube runs from the filter outlet to the throttle body. The intake air temperature sensor moves from the factory tube into a grommet in the Banks tube, and the crankcase vent line clicks onto an aluminum fitting on the tube, so the engine's sensors and PCV system work the same way they did with the stock intake. A clear window screws onto the housing so you can see the filter. Because it reuses the factory mounting points and sensors, it is a bolt-in job with hand tools.

Symptoms that send JL owners to an intake

• A cracked or warped factory airbox, or a split factory intake tube that lets unfiltered air past the filter
• Dust inside the intake tube after trail use, which points at a poor seal on the old housing
• Tired of buying paper filters and want a cleanable element with a service life of tens of thousands of miles
• Intake air temperature circuit codes (P0112 or P0113) after previous intake work, usually from a sensor not seated or a damaged connector

An intake is not a cure for a misfire, a vacuum leak or a transmission problem. If the Jeep hesitates on takeoff or shifts hard, read the codes first.

How to confirm before you buy

Pull the factory airbox lid and inspect the housing, the tube and the throttle body hose for cracks, and look for dust on the clean side of the filter. Scan for codes. If the complaint is a harsh or delayed shift rather than an engine issue, the 3.6L JL automatic is the 850RE eight-speed, and our Jeep JK and JL Wrangler transmission service guide covers the fluid, the filter and the common shift complaints before you spend money in the engine bay.

Fitment

This listing is labeled for the 2018-2020 Jeep Wrangler JL with the 3.6L V6. Banks' current installation instructions for this Ram-Air kit cover the 3.6L JL Wrangler from 2018 on and the 3.6L JT Gladiator from 2020 on, so later trucks may also be covered; send us the year and VIN and we will confirm before you order. It does not fit the 2.0L turbo JL, which uses a different kit, the Banks 41844 for the 2.0L turbo, and it is not for the 3.0L EcoDiesel. If you would rather run an oiled filter, the same system is available as the Banks 41843 with an oiled filter. Browse more performance parts in engine performance.

Install notes

• Work on a cold engine. Tools called for are an 8mm or 5/16 in nut driver, a Phillips screwdriver, a 10mm socket, a clip removal tool and long-nose pliers.
• Remove the IAT sensor by twisting it about 45 degrees, unclip its harness, unhook the coolant hose clip if equipped, and press the gray tab to release the crankcase vent line.
• The two 10mm bolts that hold the factory tube to the fan shroud are not reused. Keep the two rubber grommets from the bottom of the factory airbox; they go back in the vehicle for the Banks housing.
• Install the filter with its arrow at the top pointing down, line up the arrows on the filter and tube, and do not pinch the PCV line under the tube before tightening the three clamps.
• Set the IAT sensor lock at the 9 o'clock position, make sure the PCV connector clicks, and use the supplied thread locker on the window screws.
• Dry filter service: Banks calls for cleaning every 50,000-100,000 miles on street vehicles, more often off-road, and replacing the element when restriction reaches 18 in H2O. Never oil the dry element.

While you are under the hood on a high-mileage JL, it is a good time to plan the transmission service too. The 850RE filter and pan gasket kit covers the 3.6L automatic.

Does the 41843-D fit my 2021 or newer Wrangler?

This listing is labeled 2018-2020 JL 3.6L. Banks' install instructions for this Ram-Air kit cover the 3.6L JL from 2018 on and the 3.6L JT Gladiator from 2020 on. Send us your year and VIN and we will confirm fitment before you order.

What is the difference between 41843-D and 41843?

The housing, tube and hardware are the same system. The -D version uses a dry filter you wash and reuse without oil; the 41843 uses an oiled filter that must be re-oiled after cleaning.

How do I clean the dry filter?

Banks calls for cleaning every 50,000-100,000 miles on the street and more often off-road, or when restriction reaches 18 in H2O. Banks' filter care section warns against gasoline, solvents, strong detergents and high-pressure water on its elements. A dry element is cleaned and reinstalled without oil.

Do I need to move any sensors?

Only the intake air temperature sensor, which goes into a grommet in the Banks tube. The crankcase vent line connects to an aluminum fitting on the new tube. Make sure both are seated before starting the engine.

Does it fit the 2.0L turbo or EcoDiesel JL?

No. This kit is for the 3.6L V6 only. The 2.0L turbo JL uses the Banks 41844 kit.

• Jeep JK/JL Wrangler Transmission Service Guide
• ZF 8HP Fluid Type and Capacity
• ZF 8HP Filter and Pan Service