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BBK 62mm Throttle Body (91-03 4.0L Jeep Wrangler YJ & TJ)

Item J25095
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      Review & Installation Video

      Hey, what's up guys? I'm Ryan from ExtremeTerrain. And today I'm here with the BBK 62 millimeter throttle body for your '91 to '03 wrangler. This is gonna be for someone who's looking for a little more power and throttle response out of your four liter and it's gonna be an upgrade over the stock throttle body. And you're gonna get more out of it than just adding a spacer. For the same price as a stock throttle body, you can upgrade to this unit. And for just under $300, I honestly think this is one of the best options to go with. This is gonna be an easy bolt on that comes with brand new gaskets and hardware to install and it's made in the USA. As far as install goes, I'm gonna give this a two out of three wrenches as you can install this in under two hours with simple hand tools. That being said, let's hop into the install. First step, we're gonna remove our factory intake tube using a flathead screwdriver. There's a clamp around here. We're gonna loosen that. Next we're gonna remove the PCV hose. This most likely is just gonna wiggle right off. Next we're gonna remove these clamps, disconnecting the top section of our airbox to the bottom. Then we can remove the whole assembly. So we're just about ready to remove your throttle body except we are gonna have to disconnect a few connections. This is gonna include the return spring, the throttle linkage, and then there's three plugs on this one. So we're gonna push down on these locking tabs, unplug this. Next we're gonna remove our throttle linkage. That's just gonna pry off to the side. And then our return spring. It's gonna pry off frontward and don't lose that. Now, this is not gonna be on your stock. This is for a hand throttle. You probably won't have this on your Jeep. We're gonna go ahead and remove that as well. After everything is disconnected, you're gonna use a 10 millimeter socket to remove your four bolts. With all four bolts removed, you're ready to remove your throttle body. So we have our stock unit out. We're just about ready to install the new one. However, I just wanna take a moment to cover some of the features that you're getting with this new one. Now, the stock throttle body is 55 millimeters on the inside. This new one is gonna be 62 millimeters. Even though the stock throttle body is 55, the hole in your intake is actually 62 millimeters. So this is gonna give a smooth transition for airflow. Not only is it gonna boost airflow, but BBK claims power increases of up to 12 horsepower with this. It's machine from rustproof 356 aluminum alloy and is much stronger than the stock unit. Not only that, but it comes with double sealed bearings and O-ring throttle shafts for a longer life and smoother operation. BBK provides you with new gaskets. So we just need to switch over some of the electronics and then we can get this thing installed. So now we're ready to switch over our sensors. We're gonna begin with the IAC motor. We're gonna use the security bit that they provide in the kit to take these four screws out. So now that we have all four screws out, we're gonna go ahead and pull this piece off. Now they give us a new gasket to install on to the new one. Next we're gonna switch over the MAP sensor. You're going to use a T25 Torx. Once you have that off, you're ready to switch it over to your new throttle body. So we're gonna start by pressing that on. So now that we have our throttle body assembled with all of our electronics, we're ready to install it. We're gonna place our gasket down, throttle body, and then we're gonna use the new bolts provided. We're gonna tighten them up with a five millimeter Allen key. Then we can hook up our linkage. We'll start with our return spring. Slide that on. Hook it onto our bracket, then we can take a throttle cable, clip that on then we can plug in our connections. After you have your throttle body tightened up and everything's connected, you can put your factory air intake back on. Then we'll tighten our clamp up, reconnect our PCV, and then we can latch our airbox down. So with everything put back together and tightened up, that wraps up my review and install. For more videos like this, check us out at

      Product Information

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


      • Boosts Air Flow to Increase Horsepower by 7 to 12
      • 62mm Single Bore
      • 356 Cast Aluminum Alloy
      • CNC Machined for Precision
      • Natural Finish
      • Multi-Port Injection (MPI) Throttle Body Style
      • Die Stamped Throttle Linkages
      • Double Sealed Bearings
      • O-Ringed Throttle Shaft
      • CARB EO Number: D-245-21
      • Fits 1991-2003 Wrangler YJ and TJ Models


      Increase Horsepower. Boosting your Wrangler engine's horsepower by anywhere from 7 to 12 horses is easy with BBK's 62mm Throttle Body from the company's Power-Plus Series performance parts. With a big 62mm inlet, this throttle body sucks in an ample flow of cold, dense air that powers up your Jeep's 4.0L engine strongly. Besides boosting aspiration, this component is precision CNC machined out of tough, rust-proof 356 aluminum alloy that will stand up to years of hard-charging off-road adventure.

      Quality Construction. The 62mm Throttle Body by BBK is a performance part made from 356 aluminum alloy, cast and then CNC machined to precise tolerances. Features include die-stamped throttle linkages, double-sealed bearings, and an O-ringed throttle shaft. Designed for high airflow, this part includes a multi-port injection (MPI) style, and is built to exceed stock strength and quality standards. Horsepower gains range from 7 to 12 HP, varying by model and application. Made in the USA, this product is covered by a 1 year limited warranty from BBK.

      Application. This BBK Power Plus Series 62mm Throttle Body is specifically designed to fit the 1991-2003 Wrangler YJ and TJ models equipped with a 4.0L engine.

      Fitment: 1991 1992 1993 1994 1995 1997 1998 1999 2000 2001 2002 2003 Details

      MPN# 1724

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (32)

      Write a Review

      Ratings Summary

      4.4 out of 5 overall rating from 32 customers

      Installation Time: Less than 1 Hour

      • April 01, 2020

        4 1997 Wrangler - install Installation Time: Less than 1 Hour

        Worked as it should

        Picked up a little bit of throttle response and speed.

        Helpful (0)
      • January 02, 2020

        Review shared from BBK 62mm Throttle Body (04-06 4.0L Jeep Wrangler TJ)

        5 2005 Rubicon Unlimited - SteveZ Installation Time: Less than 1 Hour

        High Quality, Great Value

        I bought the BBK Throttle Body to eliminate an accelerator sticking issue. The throttle plate shaft had worn enough to cause this problem. Installation of the new BBK was about a 30 minute job even though I had a problem getting the screw loose on the MAP sensor (very quick and easy). The kit even came with the tamper proof bit to remove the torx head screws on the throttle position sensor and idle air control. Due to the small increment of performance gain promised, this is difficult to assess, however on start-up I had no ECM codes, the engine runs smooth and accelerates without hesitation. I highly recommend for repair of worn throttle body. If your looking for huge performance gain your going to need to spend a lot more money.

        Helpful (2)
      • October 03, 2019

        5 2001 Wrangler - cw4Jasper Installation Time: Less than 1 Hour

        Throttle Body

        Well made product. Very simple 1 beer install. Watch the video first so you will have all your tools. Harbor Freight has a good selection of torx and Allen T handles. The kit comes with a torx bit. The 4.0 seems to have a good bit more "pick up" than before. Will be installing a better air filter soon to allow the throttle body to reach its potential.

        Helpful (5)
      • June 23, 2019

        5 1998 Wrangler - Yeti Installation Time: Less than 1 Hour

        Great product

        Everything went well easy to install and runs great

        Helpful (4)
      • June 21, 2019

        5 1999 Wrangler - Woody Installation Time: Less than 1 Hour

        Easy as cake

        Extremely easy install, way better then the stock one! 10/10 would buy again! (hopefully I don’t have too)

        Helpful (3)
      • June 11, 2019

        Review shared from BBK 62mm Throttle Body (04-06 4.0L Jeep Wrangler TJ)

        1 1999 Wrangler - OldRanger Installation Time: Full Day


        NOT worth the time and $$$$ for the whole set up TB, Cold air IT, and Cat back exhaust, a waste of time and Money on a 4.0 99 TJ auto trans !!!

        Helpful (3)
      • May 01, 2019

        4 1998 Wrangler - JeffB Installation Time: Less than 1 Hour

        BBK 62MM Throttle Body

        Easy install. Toughest part was getting the bolts out of the existing throttle body for the sensors.

        Helpful (3)
      • March 30, 2019

        5 1992 Wrangler - COJeepGuy Installation Time: Less than 1 Hour

        What a difference!!

        I'm gonna be honest here, I was pretty skeptical at first when I had read about the 4.0 body onto a 2.5 engine increasing fuel economy and horsepower. But, I'm now officially sold! This thing was super easy to install. I also bought a Hesco 1" 62mm spacer to accommodate the bigger butterfly valve on the new throttle body. Boy oh boy do I see an improvement. I really couldn't be happier with this product and will recommend this to all my 4 banger buddies out there!

        Helpful (2)
      • March 19, 2019

        5 1997 Wrangler - BP Installation Time: Less than 1 Hour


        Seat of the pants power improvement. Throttle response is instantaneous.

        Helpful (4)
      • January 29, 2019

        Review shared from BBK 62mm Throttle Body (04-06 4.0L Jeep Wrangler TJ)

        3 2004 Wrangler Unlimited - BartV Installation Time: Less than 1 Hour

        BBK 62mm Throttle Body

        The 62 mm throttle body went on very nicely. I was not excited as to the performance to my 2004 LJ. Very little differences noted.

        Helpful (8)

      Questions & Answers (13 answers)

      5 Top Rated Questions

      To follow up on question posted earlier. Q:Just bought a poweraid throttle body spacer, would it be pointless to add a larger throttle body since the spacer is only 60 mm? Thanks in advance. A: Throttle body spacers would be designed around the OEM throttle body, and would not work well with an aftermarket throttlebody such as the BBK 62mm Throttle Body. Why wouldn't the throttle body spacer work with the BBK 62MM? I understand the spacer was designed for the OEM throttle body. Is it due to the larger diameter of the throttle body causing the valve to scrap the spacer causing it to stick in the open position?

      • Due to the design of the throttle body spacer this was created with the OEM throttle body in mind and this is indeed due to the diameter of the throttle body being too large.

      Helpful (1)

      Just bought a poweraid throttle body spacer, would it be pointless to add a larger throttle body since the spacer is only 60 mm? Thanks in advance.

      • Throttle body spacers would be designed around the OEM throttle body, and would not work well with an aftermarket throttlebody such as the BBK 62mm Throttle Body.

      Helpful (1)

      Doest the kit come with any new bolts to attach throttle body to intake?

      Is this CARB Compliant in California ?

      • Yes, this is CARB Compliant in the state of California with the CARB EO Number being: D-245-21

      Helpful (0)

      Hi, very interested in the your 62mm throttle body for a 2001 4.0L TJ. But I have not seen any before and after BHP or Torque comparisons taken from same vehicle on a dyno. Do you have these details please?

      • We do not have those details to offer, we do however have the estimate horsepower gains to offer, of course being between 7-12.

      Helpful (0)
      Post Your Question
      8 More Questions
      What is the difference between the 04-06 and the model that fits up to 03? 1 answer
      Would this Throttle Body fit the 2.5 engine? 1 answer
      I have a 2004 Jeep Wrangler X, will the BBK 62mm fit my 4.0 liter? Thanks 1 answer
      Is there a CARBO number attached to this? If not is it CA Compliant? 1 answer
      Would this fit a 2006 LJ (non rubicon). It's a 4.0L inline - but unsure if there's a difference in engine from 2003 to 2006. 1 answer
      If I have a 2.5 liter 4 cylinder motor in my 94 Jeep Wrangler YJ can I install this 62mm throttle body on with no problems 1 answer
      Is this unit compatible with a K N cold air intake (already installed)? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Throttle Body
      • (1) Throttle Body Gasket
      • (1) MAP Sensor Gasket
      • (1) T-20 Torx Bit
      • (1) Vacuum Cap
      • Hardware

      Will It Fit My Wrangler

      • TJ Rubicon 2 Door - 03
      • TJ Wrangler 2 Door - 97, 98, 99, 00, 01, 02, 03
      • YJ Wrangler 2 Door - 91, 92, 93, 94, 95

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