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JLT 3.0 Black Oil Separator; Driver Side (14-18 V8 Silverado 1500)

Item S111550
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$149.00 (kit)

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      Video Review & Installation

      It's Joe from AmericanTrucks and today we're gonna be talking about one of my personal favorite mods and something I think should be on every truck out there, the JLT 3.0 Black Oil Separator on the driver side, fitting all '14 to '18 5.3-liter powered Silverado 1500s. Now, this is gonna be a great mod for you if you're looking to prevent carbon buildup and therefore extend the life of your LS motor with a budget-friendly and easy to install mod. So, in order for us to understand what is going on here and what this is gonna do for your truck, we need to understand a little bit about internal combustion motors. Now, we all know gas and air are compressed together and ignited by a spark plug, those exhaust gases travel out of the exhaust valve, and out the exhaust out the back of the truck. We all have that down. Some of those exhaust gases, however, they may get around the piston and into the crankcase where, in the old days, pressure used to build up and it used to escape through various different cracks and that's why old classic cars smell the way they do.Now, that is called blow-by, and blow-by is produced by most if not all modern internal combustion engines out there. Now, modern emissions regulations state that that blow-by has to be recirculated into the intake manifold where it can be burnt off again and basically recycle. As that flows back into the combustion chamber, it's basically gonna rush past the intake valve again and eventually that carbon from the oily blow-by vapor can build up on the back of that intake valve and over the long-term that can cause a lot of problems especially for our LS motor here. Reason being is, this is a direct injection motor, which means the injectors are right in the combustion chamber. On a port injection motor that would be in line before the intake valve which is gonna spray over the back of that intake valve to help keep it clean. Not the case with the LED3 on our good old Silverado here. So, valve coking, as it's called, can really be a serious problem. Now, back to the JLT. And what this is gonna do is replace our PCV valve hose, and this is going to install a little itty bitty catch can hear.That is where that oily vapor is going to collect, allowing you to unscrew the base of that and dump it off properly without ever going back into your motor where it can cause issues. This has a stainless steel mesh, aluminum honeycomb filter, satin black anodized finished on here, we have a narrow base, allowing you to easily unscrew that, and on top of that we got a nice JLT logo on top. This is going to be able to trap three ounces of liquid, hence JLT 3.0. Now, that should take you about 3,000 miles before it needs to be dumped out and reinstall after being cleaned with some degreaser. And that is going to show you just how much this is going to trap and how much this LS motor is recycling. Now, if 3,000 miles is a little bit too short for you, the CNL monster and the pro-sport, they're a little bit bigger, well, a lot bigger, they can hold about 20 ounces and 24 ounces respectively. That should last you a little bit longer but, in my personal opinion, this one is the way to go.Pricing is gonna cost you right around 200 bucks, and if you're looking to go the long run with your LS motor, that is definitely a very, very small price to pay to keep it in tip-top shape. That price is also going to include a one-year limited warranty from JLT. Install for this is gonna be one hour tops. Even if you've never done any mods on your truck, you've never turned a wrench in your life, this is going to take you no longer than one hour to do. Easy one out of three wrenches on our difficulty meter. Without any further ado, let me show you what tools you'll need and how it's done. Tools we use for this install will include an impact, small extension 13 and 8-millimeter sockets, as well as a flathead and Phillips head screwdriver. So, the hose we're gonna need access to is under the airbox here, you might be able to get your hand in there if you do have a small hand. I can't. so we're gonna have to get this out of the way. First thing we're gonna need extension, 8-millimeter socket, just gonna loosen up this clamp around the throttle body.You can also do this with a flathead as well. Then on the back of that airbox we do have two breather tubes, we're gonna disconnect those, push up on this release tab at the bottom, and they pop right out. Same thing goes with the one over here. Now you can ahead and move that up to the intake manifold like so. You can see we now have a clear shot of the hose we need to get to. So, just like the other breather hoses, this has a release tab on the back. I'm gonna use the flathead to help me pry that out of there. And you can see right here that is one side off. Now, if you follow that hose back, you'll see the other side of the connector right here. Now what I like to do is if you kind of grab that and spin it, you can get the release tab a little bit closer to the top and get your hand down there, you can press it down and pull it right off. So, now that we have the factory hose removed with the two next to each other, you can see just how the JLT is gonna do its job. You can see these connectors are in roughly the same location, however, it's routed through the catch can first and that's gonna catch any blow-by.You can see the bottom half here if I unscrew this, that is where any oil is gonna go instead of right back into the manifold. So, before we head back to the truck, couple things I do wanna go over here just because they're easier to see on the table, two different size hoses on the JLT. Short one is gonna go to the intake manifold, long hose is going to go toward our PCV valve. Secondly, there is a bracket we're gonna have to install to the top of the catch can, all you're gonna need are the two Philips head screws that come in the kit. You can see the bracket here, it is gonna point to this side, and then the two Phillips heads come in the kit.You have the longest screwdriver in the gosh darn world, but once you get it in there, it tightens right down.So now we're all set, we can go ahead and ditch this old stuff, grab our JLT, I'm gonna head back to the truck. All right, 13-millimeter socket, our mounting bracket is gonna rest under this bolt right here on the driver's side so we're gonna remove that, and then we can grab our catch can and drop that bolt right back in.So, we're gonna start with the long hose and that is gonna go toward our PCV, and that's gonna go under the wiring harness and into that connector, and you'll hear this snap shut, and that is good to go. And then the other one, the shorter hose, that is gonna go right to our manifold. At this point our catch can is fully installed. All we have to take care of now is the airbox. We're gonna put that right back on to our throttle body, tighten it down with an 8-millimeter socket or flathead. And then our breather hoses are just gonna turn right back and click.Now, guys, that is gonna do it for me, it's also gonna do it for the JLT 3.0 Black Oil Separator on the driver's side, fitting all '14 to '18 5.3-liter powered Silverado 1500s. As always, thank you for watching. Keep it right here in AmericanTrucks for all things Chevy.

      Product Information

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


      • Decreases Blow-By and Prevents Engine Sludge
      • Retains Up to 3 Ounces of Oil
      • Stainless Steel Mesh & Aluminum Honeycomb Filter
      • Rigid Billet Aluminum Construction
      • Black Anodized Finish
      • Knurled Base for Efficient Removal
      • Driver Side Mounting
      • Quick Installation
      • One-Year Limited Warranty
      • Fits All 2014-2018 5.3L and 6.2L V8 Chevrolet Silverado 1500 Models


      Keep Your Engine Running Perfectly. As beneficial as your Silverado 1500’s positive crankcase ventilator (PCV) valving system is to your engine, it isn’t without its drawback. When crankcase pressure is vented back into your intake, vaporized oil is often included in the mix. This oil vapor can accumulate over time becoming harmful engine sludge. The JLT V3.0 Driver Side Black Oil Separator helps mitigate this problem by catching these oil vapors and collecting them in a sealed catch can. This ensures your fuel’s octane levels remain undiluted, and your truck performs optimally.

      Unique Design. The JLT V3.0 Driver Side Black Oil Separator features a unique filtration system consisting of a fine stainless steel mesh that traps oil vapors and releases them once oil gets too heavy. The oil then proceeds to a second component made from honeycomb aluminum, where it’s condensed further till it settles to the bottom of the catch can. This catch can’s 3-ounce capacity is good 3,000 miles before it needs to be emptied.

      Robust Aluminum Build Quality. The JLT V3.0 Driver Side Black Oil Separator is CNC-milled from billet aluminum for strength, minus the weight. A rubber O-ring prevents leakage, while a knurled base makes opening the catch can easy, even when oily. Finally, this oil separator receives a durable, black anodized finish for maximum corrosion resistance.

      Convenient, No-Mod Installation. The JLT V3.0 Driver Side Black Oil Separator installs directly on preexisting locations on your truck and requires no modifications. This oil separator comes with hoses that use a push-lock system for easy installation without the need for clamps. Also, this assembly installs using just standard hand tools.

      Comes with a 1-Year Limited Warranty. The JLT V3.0 Driver Side Black Oil Separator comes with a 1-year limited warranty covering workmanship defects. Please visit the manufacturer’s website for more details.

      Not CARB-Certified. The JLT V3.0 Driver Side Black Oil Separator is not CARB-certified at this time. Installation or use of this product is illegal in California and other states that have adopted CARB standards. Please check local regulations for allowed applications of this product.

      Application. The JLT V3.0 Driver Side Black Oil Separator fits all 2014-2018 5.3L and 6.2L V8 Chevrolet Silverado 1500 Models.

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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Oil Separator
      • (1) Mounting Bracket
      • (2) Mounting Screws

      Customer Reviews (100+)

        Questions & Answers

        10 More Questions

        Will It Fit My Silverado 1500

        • 5.3L V8 - 14, 15, 16, 17, 18
        • 6.2L V8 - 14, 15, 16, 17, 18