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FSD25 WINNER: Emerson Garcia, Gonzales, LA. BMT #3 WINNER: Eric Dassinger, Wichita Falls, TX.
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S&S Diesel Motorsport

S&S 2011-2026 6.7L Ford Power Stroke Fuel Leak Prevention Kit (LPK)

SKU: 6.7F11-LPK
$300.00

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At Full Send Diesel, we don’t just sell parts. We stand behind them. That’s why we fully back S&S Diesel Motorsport and proudly operate as an authorized premium dealer for their products. Their commitment to performance, reliability, and innovation aligns perfectly with our standards.

 

We don’t just support S&S as a brand. We run their products in our personal vehicles, our in-house builds, and every giveaway truck we put together. If it’s not good enough for our own trucks, it’s not good enough for our customers. S&S Diesel Motorsport has earned our full trust and support, both on and off the road.

 

S&S Diesel Motorsport

  • Billet aluminum engine-mounted fuel filter head replaces the crack-prone plastic OEM filter housing
  • All-metal Fuel Leak Prevention Fitting replaces the brittle plastic OEM injector return fitting (included with every kit)
  • Retains the factory filtration spec: 4-micron absolute at 99% efficiency
  • Nearly double the dirt holding capacity of the factory filter (S&S 23 grams vs OEM 12 grams)
  • Two-post mount accepts a larger Donaldson spin-on filter while keeping the factory mounting location
  • LPK Plus adds the chassis-mounted Donaldson replacement filter (10-micron nominal, over 40 grams of dirt holding capacity) for a complete filtration refresh in one kit
  • Perfect complement to the S&S Disaster Prevention Kit, the DCR Pump Conversion, or a completely stock fuel system
  • Fits 2011-2026 Ford F250 through F750 trucks with the 6.7L Power Stroke diesel
  • SEMA Category 4 Replacement Part
  • Made in the USA

Every 6.7L Power Stroke owner knows the two plastic failure points in the factory fuel system: the engine-mounted fuel filter housing and the injector return fitting. Ford’s filtration itself is excellent. The problem is the plastic it lives in, which gets brittle with heat cycles and eventually cracks and leaks fuel. The S&S Diesel Motorsport Ford 6.7L Fuel Leak Prevention Kit (LPK) may not be the first solution to market, but it is the correct one. It fixes the leak points while meeting and exceeding the OEM filtration specification instead of sacrificing it.

Rather than reuse the OEM fuel filter cup, the fuel system engineers at S&S went with a billet aluminum two-post mount that accepts a much larger Donaldson spin-on filter. That keeps the factory 4-micron absolute at 99% efficiency spec while packing nearly double the dirt holding capacity (23 grams vs 12 grams OEM). And because fixing one leak point while leaving another makes no sense, every kit also includes the all-metal Fuel Leak Prevention Fitting for the injector return. Both factory plastic failure points are gone in one shot.

The standard Fuel Leak Prevention Kit covers the engine-mounted side: #6.7F11-LPK for 2011-2016 trucks and #6.7F17-LPK for 2017-2026 trucks, each at $300.00 USD. The LPK Plus bundles in the chassis-mounted Donaldson replacement filter (10-micron nominal with over 40 grams of dirt holding capacity), so you get a complete filtration refresh in one kit instead of wasting money on the Ford two-filter bundle when you only need one: #6.7F11-LPK-PLUS (2011-2016) at $350.00 USD, #6.7F17-LPK-PLUS (2017-2026) at $367.00 USD, and #6.7F17-LPK-PLUS-650 for F650 and F750 trucks at $350.00 USD. S&S projects the LPK Plus will be the go-to for most trucks.

When service time comes around, grab the matching S&S LPK Replacement Filter Kit, listed separately here at Full Send Diesel. Kits are available for each year range, including LPK plus DPK versions that add the return filter for trucks also running the S&S Gen2.1 Disaster Prevention Kit.

Customer Reviews

Overall rating: 4.7 / 5 from 525 reviews.

Customer photo review of FSD 03-09 Dodge Cummins Billet Heat Exchanger

The billet heat exchanger looks great and is machined nicely. No worries about an internal failure allowing fluids to mix. It seems to be doing its job. It's more robust than the factory style cooler but I don’t believe it is quite as efficient based on warm up times I’m seeing. My only gripe is the bracket mounting bolts, they thread directly onto the cooler instead of passing all the way through and securing with nuts. Make sure to use thread locker along with the lock washers. As a rough guide, torque for M8 fasteners in aluminum should be 11-15 ft lbs, no torque spec is listed for the mounting hardware in the instructions.

Charles H. 4/5 Verified

FSD 03-09 Dodge Cummins Billet Heat Exchanger

Customer photo review of FSD 2003-2007 Dodge Cummins Heater Hose Kit Black Braided

It’s not bad, I was in a bind and needed a quick fix to get my truck back going. So first things first, the kit works. You can get rid of the steel lines and these will take their place. With about an hour and a half and a little research it doesn’t take much to get these hoses installed. However, I have some gripes about this kit. 1. You have to be very careful about how the lines are run to prevent the hose from kinking. 2. There are no p clamps or hardware included to hold the lines in place. To improve this kit, I’d toss some hose clamps, a couple bolts with some p clamps to hold the hose, maybe a couple pictures on where to run things too, or even total install instructions. Stiffer hose would be good too, in my pictures you can see that the hose going to the front of the engine is trying to kink as it makes the bend to run beside the turbo.

Noah T. 3/5 Verified

FSD 2003-2007 Dodge Cummins Heater Hose Kit Black Braided

Customer photo review of Kingspeed Billet Front Cover 94-02

It came with no gaskets this item deff needs to be sold with cover gasket as well as the seal for the crank even a plug for the vent or a fitting to hook a tube to the vent. Didn’t come with shit but bolts. Now I got to track everything else down seperatly makes it a pain in the ass. At this point I’d rather have stayed stock

Jacob M. 3/5 Verified

Kingspeed Billet Front Cover 94-02

Customer photo review of FSD 2010-2012 Dodge Cummins Factory Replacement Transmission Line Kit Black Braided

I installed them when I built my transmission. Hoses are good quality but fittings felt kind of cheap. Not a bad kit at all. I’d recommend it to anyone. Substantial trans temp difference after putting them on. My trans runs a lot cooler now that I’ve bypassed the heat exchanger. 2012 ram 2500 with 68rfe. 9/10 would recommend. Just be gentle with the fittings

Max F. 4/5 Verified

FSD 2010-2012 Dodge Cummins Factory Replacement Transmission Line Kit Black Braided

Customer photo review of FSD 03-09 Dodge Cummins Elite Drop-In Transmission Cooler Kit

I installed this cooler and a few weeks later got into a wreck that was able to damn near total my truck, the frame is bent in 4 places and it shifted my ranch and bumper a foot. This cooler was the only radiator that survived everything else was destroyed and wrapped around the cooler. I called customer support and was able to order new stainless steel brackets and this cooler will live again. I’m very impressed with the quality and strength of this part and would gladly buy it for another truck.

Fritz G. 5/5

FSD 03-09 Dodge Cummins Elite Drop-In Transmission Cooler Kit

Customer photo review of Kingspeed 06-Current Dodge Ram Billet Budget Builder Valve Cover

I love the product. I am just upset that it wasn’t clear it doesn’t come with any hardware. I currently have no clue what barb fittings and hose sizes I need to get for the valve cover to my catch can. I am currently using a hardware store setup as this is my first Cummins and my first quality build of a truck. If there’s anyway you could assist me or point me in the right direction that would be awesome. Aside from that I’ve had nothing but compliments on it, I actually won top 10 truck and SCT x GFP in Nashville a few weeks back. Everyone including myself love the valve cover.

Caleb H. 3/5 Verified

Kingspeed 06-Current Dodge Ram Billet Budget Builder Valve Cover

Customer photo review of XDP Wrinkle Black HD High Output Alternator 1999-2003 Ford 7.3L Powerstroke XD356

Had this thing for just over a month now. My 7.3 had the small housing alternator from factory so I needed to use the spacers. Using the spacers makes the belt slightly harder to get back on so I would recommend going up 1/2" on the belt size. Otherwise I have no issue, powers the truck just fine for the last 1000 miles.

Gunther B. 4/5 Verified

XDP Wrinkle Black HD High Output Alternator 1999-2003 Ford 7.3L Powerstroke XD356

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