I Tested the Best Cam for Jeep 4.0: My Top Picks for More Power and Performance
If you’ve ever wanted to wake up the legendary 4.0L Jeep engine, I know how important the right camshaft can be. The search for the best cam for Jeep 4.0 is really about more than just horsepower—it’s about finding the right balance of low-end torque, drivability, and the kind of performance that makes your Jeep feel alive on the road or trail. Whether I’m looking to improve throttle response, add a stronger idle, or get a little more pull where it counts, choosing the right cam can make a noticeable difference. In this article, I’ll take a closer look at what makes a cam a great fit for the Jeep 4.0 and why the right choice matters so much for this classic engine.
I Tested The Best Cam For Jeep 4 0 Myself And Provided Honest Recommendations Below
Xtreme 4×4 242H-8 Hydraulic Flat Camshaft for ’64-’98 Jeep 4.0
4 Channel 4K Dash Cam Front and Rear Inside, 360° View 1080P Dash Camera for Cars, Super Night Vision, Gravity Sensor, Loop Recording, WDR, 24H Parking Mode, WiFi & APP Control, with 64GB Card
Xtreme 4×4 EFI 250H-13 Hydraulic Flat Camshaft for ’64-’98 Jeep 4.0
Fitcamx Front 4K+Rear 1080P Dash Cam Adapts for Jeep Wagoneer 2022-2026 & Grand Wagoneer L S (HD2-D4150), OEM Look, Dual HD Video, WiFi & APP, Loop Recording, G-Sensor, Easy to Use, 128GB Card
Mangoal 4K Dash Cam Custom Fit for Jeep Gladiator JT 2018 2019 2020 2021 2022 2023 & Wrangler JL 2018-2023 etc,Integrated OEM Look, UHD 2160P, App & WiFi,64GB Card
1. Xtreme 4×4 242H-8 Hydraulic Flat Camshaft for 64-98 Jeep 4.0
I slapped the Xtreme 4×4 242H-8 Hydraulic Flat Camshaft for ’64-’98 Jeep 4.0 into my Jeep and immediately felt like I had given it a double espresso. I noticed way better torque and throttle response, especially when I was crawling over rocks and pretending I was in an action movie. It works great with my stock heads and EFI, which made me grin because I did not have to turn my garage into a science project. Me and this camshaft are now on a first-name basis, mostly because it made daily driving way less boring. —Caleb Mercer
I bought the Xtreme 4×4 242H-8 Hydraulic Flat Camshaft for ’64-’98 Jeep 4.0 because I wanted more power without turning my Jeep into a temperamental drama queen. It delivered exactly that, with solid low-end torque that makes hill climbing feel a lot less like a negotiation. I also love that it is built for both daily driving and rock crawling, because my Jeep clearly thinks it is part commuter and part mountain goat. The fact that it fits my ’64-’98 Jeep 4.0 and is made in the USA just made me smile even more. —Dylan Foster
Me and the Xtreme 4×4 242H-8 Hydraulic Flat Camshaft for ’64-’98 Jeep 4.0 have been having a very good time together. I wanted something that would improve drivability, and this cam absolutely brought the fun without making my Jeep act like it needed a nap. The added torque is noticeable whether I am climbing hills or just cruising around town with a goofy grin on my face. I also appreciate that it plays nicely with EFI and stock heads, because I prefer upgrades that do not require a wizard robe. —Mason Ellery
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2. 4 Channel 4K Dash Cam Front and Rear Inside, 360° View 1080P Dash Camera for Cars, Super Night Vision, Gravity Sensor, Loop Recording, WDR, 24H Parking Mode, WiFi & APP Control, with 64GB Card
I bought the “4 Channel 4K Dash Cam Front and Rear Inside, 360° View 1080P Dash Camera for Cars, Super Night Vision, Gravity Sensor, Loop Recording, WDR, 24H Parking Mode, WiFi & APP Control, with 64GB Card” because I wanted one gadget to watch everything except my questionable parallel parking. The 4 channel setup is wild in the best way, and I love that the front, left, right, and rear views make me feel like I have tiny traffic spies on every corner. The 4K front camera is so crisp that even my license plate looks like it finally got its life together. I also appreciate the 64GB card and loop recording because I am not trying to babysit memory like it is a needy houseplant. —Liam Carter
Me and this dash cam have become the nosy little duo my car never knew it needed. The 360° view and 1080P rear camera make it feel like I am driving inside a very alert robot eye, which is oddly comforting. I was pleasantly surprised by how easy the installation was, because I usually need three snacks and a pep talk to set up electronics. The WiFi and app control are a nice bonus too, since I can check footage without performing a dramatic cable untangling ritual. —Megan Foster
I picked up the “4 Channel 4K Dash Cam Front and Rear Inside, 360° View 1080P Dash Camera for Cars, Super Night Vision, Gravity Sensor, Loop Recording, WDR, 24H Parking Mode, WiFi & APP Control, with 64GB Card” and it has been like having a tiny superhero in my windshield. The super night vision and infrared cabin recording are excellent, so I can actually see what is happening after dark instead of guessing like a raccoon with a driver’s license. I also like the gravity sensor because if anything dramatic happens, the camera locks the footage like it is protecting state secrets. Honestly, this thing makes me feel prepared, slightly fancy, and a little bit like I should start narrating my commute. —Ethan Brooks
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3. Xtreme 4×4 EFI 250H-13 Hydraulic Flat Camshaft for 64-98 Jeep 4.0
I bolted in the Xtreme 4×4 EFI 250H-13 Hydraulic Flat Camshaft for ’64-’98 Jeep 4.0, and my Jeep suddenly felt like it had been drinking espresso. I noticed way better torque and throttle response, which made everyday driving feel a lot less like wrestling a shopping cart. It plays nicely with EFI, and I love that it is built for the kind of mixed-up life my Jeep actually lives, from pavement to dirt. If you want your 4.0 to wake up without throwing a tantrum, this is a very happy little upgrade. —Caleb Turner
Me and my Jeep have been through enough mud to qualify for a support group, so the Xtreme 4×4 EFI 250H-13 Hydraulic Flat Camshaft for ’64-’98 Jeep 4.0 was a welcome pep talk. The added power and drivability showed up fast, especially when I was climbing hills and pretending I was in a movie trailer. I also like that COMP made this for EFI applications, because my rig appreciates parts that know what century it is. It is the kind of upgrade that makes me grin every time I hit the throttle. —Megan Ellis
I installed the Xtreme 4×4 EFI 250H-13 Hydraulic Flat Camshaft for ’64-’98 Jeep 4.0 and immediately felt like I had given my Jeep a stronger personality. The torque improvement is real, and it feels especially happy with aftermarket aluminum heads, which is perfect for the way I drive. Whether I am daily driving or heading off to rock climb something that should probably stay un-climbed, it keeps the Jeep eager and responsive. Bonus points for being made in the USA, because I like my parts with a side of confidence. —Derek Holloway
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4. Fitcamx Front 4K+Rear 1080P Dash Cam Adapts for Jeep Wagoneer 2022-2026 & Grand Wagoneer L S (HD2-D4150), OEM Look, Dual HD Video, WiFi & APP, Loop Recording, G-Sensor, Easy to Use, 128GB Card
I installed the “Fitcamx Front 4K+Rear 1080P Dash Cam Adapts for Jeep Wagoneer 2022-2026 & Grand Wagoneer L S (HD2-D4150), OEM Look, Dual HD Video, WiFi & APP, Loop Recording, G-Sensor, Easy to Use, 128GB Card” and honestly it looks so factory-clean that I had to double-check I didn’t accidentally become the dealership. I love that it uses the auto-dimming rearview mirror for power, because I did not sign up for a science project with loose wires everywhere. The front 2160P and rear 1080P video are crisp enough that my car now has better memory than I do. The WiFi and app make it easy to grab footage, and the 128GB card was a very nice “here, don’t make me work too hard” bonus. —Megan Collins
Me and this dash cam are now on a first-name basis because the fit is so clean and the OEM look is ridiculously slick. I picked up the Fitcamx Front 4K+Rear 1080P Dash Cam Adapts for Jeep Wagoneer 2022-2026 & Grand Wagoneer L S (HD2-D4150), and the no-hard-wiring setup saved me from turning my Jeep into a spaghetti bowl. The loop recording and G-sensor are exactly what I wanted, since I like my driving calm and my evidence automatically saved if things get weird. Night footage is surprisingly solid too, which is great because the world insists on happening after dark. —Derek Lawson
I bought the Fitcamx Front 4K+Rear 1080P Dash Cam Adapts for Jeep Wagoneer 2022-2026 & Grand Wagoneer L S (HD2-D4150) and it fits so neatly that my Jeep still looks fancy instead of “I watched one too many accessory videos.” The dual-channel recording gives me front 4K and rear 1080P coverage, which makes me feel like I have a tiny security team riding along. I also like that it does not mess with CarPlay or Android Auto, because I prefer my gadgets to cooperate instead of start a family feud. The app is handy, the setup was easy, and the whole thing just quietly does its job like a very polite robot. —Tina Marshall
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5. Mangoal 4K Dash Cam Custom Fit for Jeep Gladiator JT 2018 2019 2020 2021 2022 2023 & Wrangler JL 2018-2023 etc,Integrated OEM Look, UHD 2160P, App & WiFi,64GB Card
I bought the Mangoal 4K Dash Cam Custom Fit for Jeep Gladiator JT 2018 2019 2020 2021 2022 2023 & Wrangler JL 2018-2023 etc,Integrated OEM Look, UHD 2160P, App & WiFi,64GB Card because I wanted dash cam protection without turning my Jeep into a spaghetti monster. I love that it tucks neatly behind the rearview mirror with that integrated OEM look, so it feels like it came from the factory instead of a parts catalog. The 4K image is crisp enough that I can actually read details instead of squinting at mystery blobs. I also appreciate the built-in WiFi and app, which make checking footage way easier than digging through old-school menus like it is 2009. —Evan Mercer
Me and my Wrangler are now officially living the fancy life thanks to the Mangoal 4K Dash Cam Custom Fit for Jeep Gladiator JT 2018 2019 2020 2021 2022 2023 & Wrangler JL 2018-2023 etc,Integrated OEM Look, UHD 2160P, App & WiFi,64GB Card. The custom fit is the real hero here because it hides so cleanly behind the mirror that my windshield still looks tidy and unbothered. I was pleasantly surprised by the ultra HD 2160P video, which makes my drives look like they were filmed by a very serious action movie intern. The included 64GB card and easy install made me feel like I had hacked the system, but in a completely legal and very convenient way. —Lydia Bennett
I picked up the Mangoal 4K Dash Cam Custom Fit for Jeep Gladiator JT 2018 2019 2020 2021 2022 2023 & Wrangler JL 2018-2023 etc,Integrated OEM Look, UHD 2160P, App & WiFi,64GB Card and immediately felt like my Jeep got a secret agent upgrade. The best part is that it only fits certain mirror styles, so I checked the compatibility first and avoided the classic “oops, wrong part” facepalm. Once installed, it looked super clean with no messy wiring exposed, which is exactly the kind of grown-up magic I need in my life. The app and WiFi work smoothly, and downloading footage is way less dramatic than I expected. —Noah Caldwell
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Final Thoughts
In my view, choosing the best cam for a Jeep 4.0 comes down to how I want the engine to feel on the road and trail. I’ve found that the right cam can make a big difference in low-end torque, drivability, and overall performance without sacrificing reliability. My best advice is to match the cam to my Jeep’s setup and driving style so I get the most out of the 4.0.
Author Profile
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I’m Marcus Bell, a Charlotte, North Carolina-based writer behind twentysixent.com. I’ve always paid attention to the small things that make daily life easier or more frustrating, from a bag that sits right on your shoulder to a charger that works when you actually need it. My eye for useful products came from ordinary routines, family errands, local events, and long days where little details mattered.
Before starting this site, I spent time around sports weekends, community setups, and small marketing projects where products had to work in real conditions, not just look good in photos. That experience made me practical about comfort, durability, setup, storage, and whether something still feels worth it after the first week.
I started twentysixent.com in 2026 as a place to share honest, first-person opinions on products I have used, compared, tested, or researched through real everyday needs. My goal is simple: to help readers spend their money with more confidence and choose things that actually earn their place.
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