Merch
Built for diesel junkies and horsepower freaks, the OG Stroker Pump Snapback brings bold attitude in every stitch. Featuring a premium embroidered patch and flat bill, this hat’s ready for wrench time or wide-open throttle. Adjustable snap closure means one size fits all – just like your love for boost.
CP3
If you’ve encountered the rare CP3 clearance issue where the new shaft won’t rotate a full 360° due to manufacturing variances these pre-machined tappets are your quick and clean fix. Each set has been precision-machined to reduce height by ~0.5mm, eliminating interference with the shaft. Just swap them in using our CP3 Tappet Tool (required [...]
CP3
This 3-piece toolset is built for all CP3 pumps, giving you precision control and one-handed operation. Durable, compact, and includes replacement gripper pads and a storage case.
Choose ‘Include Tool’ when buying a DIY Stroker CP3 Kit and save $30 compared to buying the tool separately. Designed specifically for removing and reinstalling CP3 pump shafts with precision and ease. Machined in-house from heat-treated chromoly steel for maximum strength and durability. Built to handle the job without damaging your components. For: 2007.5-2025 6.7 [...]
DIY CP3
More Flow. Less Cost. Real Performance Gains.
Unlock hidden power from your truck with the Motorsport Diesel DIY Stroker CP3 Kit. This precision-machined upgrade boosts fuel output without the price tag of a high-dollar stroker. Built by the original stroker CP3 pioneers, it delivers real flow gains with proven reliability. With an easy-to-follow installation process, this kit puts performance back in your hands. Whether you’re towing, racing, or daily driving, this is the fueling upgrade your truck’s been waiting for. Build it yourself. Feel the difference.
We are the “OG Stroker Pump” producer from 2007 until today. This is a brand new pump, flowing at least 98% in volumetric efficiency. The new for 2025 Supermax pump is designed for performance applications needing to support over 900 RWHP, coming in with over 320 liters per hour of flow at 3500 the New [...]
We are the “OG Stroker Pump” producer from 2007 until today. This is a remanufactured pump, flowing at least 98% in volumetric efficiency. The new for 2025 Supermax pump is designed for performance applications needing to support over 900 RWHP, coming in with over 320 liters per hour of flow at 3500 the New Supermax [...]
We are the “OG Stroker Pump” producer from 2007 until today. We start with the best pumps to base our modifications upon, if it is not new, surplus new or a used pump that provides no less than 98% volumetric efficiency, then we do not use them. The new for 2025 Emax pump is designed [...]
The image of the pump, is the actual pump as mounted and plumbed on our testing platform. The outlet fitting will be replaced with the blanking fitting, this is a normal side outlet LBZ/LMM pump. We are the “OG Stroker Pump” producer from 2007 until today. Price includes a $300.00 refundable core charge, which will [...]
We are the “OG Stroker Pump” producer from 2007 until today. We start with the best pumps to base our modifications upon, if it is not new, surplus new or a used pump that provides no less than 98% volumetric efficiency, then we do not use them. The new for 2025 Emax pump is designed [...]
We offer common rail high pressure pump testing services. If you are replacing injectors, it is a good idea to also check the condition of the pump, after all it could possibly be the reason for injector failure. We test the pump for output at various rpm ranges, such as cranking speed, and wide open [...]
Testing Services
Motorsport Diesel offers complete injector testing services. We use approved testing plans to determine the current state of the injector. We start with armature lift measurement, if that is within range we will then perform a baseline test. If it fails here we do not proceed further. If flow is within range we will then [...]
The 24 valve 5.9 and 6.7 engines have 11 steel press in freeze plugs beneath the valve cover. These press in plugs can be blown out due to a combustion leak from a head gasket failure. Engines equipped with a multi layer steel head gasket, can actually leak under high cylinder pressure and reseal themselves [...]
Coolant System
Maximize Performance. Minimize Heat. Protect Your Engine.
Overheating rear cylinders are robbing your 1998.5-2018 Dodge Cummins 5.9L & 6.7L of power and longevity-fix it in under 30 minutes with the Motorsport Diesel Coolant Bypass Kit. Engineered for superior cooling efficiency, this billet aluminum kit relieves excess pressure, reduces water pump strain, and prevents costly engine wear. Featuring a precision pressure relief valve, it dynamically regulates flow-something a thermostat simply can’t do. Whether you’re towing, daily driving, or chasing horsepower, this is the upgrade your Cummins can’t afford to go without. Get yours now and keep your engine running stronger, longer.