DODGE D250 Engines & Components

Fluidampr Harmonic Dampers

Using only three parts (a laser-welded sealed housing, an internal inertia ring, and highly viscous silicone fluid between the two), SFI-approved Fluidampr harmonic dampers can control all crankshaft vibration--not just a limited frequency range. As a result, you get reduced wear on the main bearings and timing gear, more stable valvetrain operation, and less chance of crank failure.

4.77 out of 5 stars ( 146 )

$558.35

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$643.31

PRW Platinum Series Shaft-Mount Rocker Arms

PRW Platinum Series shaft-mount rocker arm systems fulfill the needs of successful racers and performance engine builders at every level. The Performance Quotient PQx rocker arms are made from quality alloy extrusions. These systems include CNC-machined billet steel pedestals, and ground, steel alloy rocker shafts—along with PRW SCM-4135 alloy steel fasteners, studs, and bolts. PRW Platinum Series shaft-mount rocker complete kits include all the components and hardware required for a professional installation. Order the system recommended for your specific vehicle and engine size. Features, items, and specs: * Several systems to suit many cam profiles * 8 pairs of shaft-mount rockers with adjustable cup-style valve lash adjusters * SAE 42100 full complement precision needle and cage roller bearings * Rated up to 750 lbs. open spring pressure * Internal oiling system for long-lasting performance

4.3 out of 5 stars ( 10 )

$742.48

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$742.49

PRW Dodge Cummins Rocker Arm Systems

PRW Dodge Cummins rocker arm systems are the perfect upgrade to provide more power and run your diesel engine more efficiently. Each rocker is made from alloy steel substantially stronger than stock. PRW Cummins shaft systems are manufactured to exceed OEM specifications as a "drop in" assembly using the stock arm ratios. The upgraded rocker arm systems are complete with everything you need, from ball adjusters and fasteners, along with silicon bronze bushings instead of OEM-style needled bearings for prolonged life expectancy. Note: some applications are pre-machined for high performance cylinder head stud kits.

3.0 out of 5 stars ( 2 )

$542.77

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$679.93

COMP Cams Computer-Controlled Camshafts

COMP Cams computer-controlled camshafts are specifically designed for the serious street performance enthusiast. Whether it's for a street rod or a show car with power accessories, one of these cams will fit your engine's needs.

4.68 out of 5 stars ( 47 )

$531.95

COMP Cams Xtreme Energy Retrofit Camshafts

COMP Cams Xtreme Energy retrofit camshafts are built to take advantage of the latest cam technology—and provide maximum performance. Whether your use is off-roading, towing, or street performance, there is an Xtreme Energy cam available for you. By using an aggressive lobe profile, these hydraulic roller tappet cams provide better throttle response, engine vacuum, and top-end horsepower than equivalent cams from other manufacturers. Choose the model and options designed for your engine application.

4.85 out of 5 stars ( 54 )

$531.95

Melling Stock Replacement Cam and Lifter Kits

Restore your engine to its true power potential with Melling's stock replacement cam and lifter kits. They're perfect for either replacement or stock rebuilds. Melling cam and liter kits also include a matched set of lifters so you won't have to worry about mismatched parts during installation.

4.24 out of 5 stars ( 21 )

$615.99

Mahle Original OE Replacement Pistons

Mahle Original replacement pistons have the same great OE features to provide the perfect fit and function in your vehicle. They offer things like compensated ring grooves to ensure proper ring loading and oil control; as well as expansion-controlled designs for small fitting clearances—to reduce engine noise, wear, emissions, and improved oil control. Choose the model designed for your vehicle and engine application.

4.0 out of 5 stars ( 7 )

$621.99

COMP Cams Thumpr Retrofit Hydraulic Roller Camshafts

COMP Cams is bringing back the musclecar sound—and it's nastier than ever! Few things grab our attention at a car show or cruise night more than a car with a thumping high performance idle. In an ongoing quest to provide you with the performance and sound you demand, COMP Cams' engineering team proudly introduces the Thumpr retrofit hydraulic roller camshafts. They are a series of camshafts designed for use in engines that were originally equipped with flat tappet camshafts. The lobe profile and grind characteristics use a combination of an early exhaust valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap to maximize the rough-idling characteristics of the cams. They give you a seriously aggressive exhaust note without negatively impacting the power output or streetability of the engine. Thumpr camshafts are available in three different grind profiles. Each one will produce a rough, racy exhaust note and impressive amounts of horsepower and torque within a different rpm range. COMP Cams Thumpr Series camshafts feature a cutting-edge hydraulic roller design that delivers a substantial power increase over identical hydraulic flat tappet grinds—without sacrificing reliability or ease of maintenance.

4.77 out of 5 stars ( 35 )

$531.95

COMP Cams Drag Race Camshafts

COMP Cams drag race camshafts are offered in four styles: hydraulic flat tappet, hydraulic roller tappet, mechanical roller tappet, and mechanical flat tappet. These cams are ideal for the performance demands of the dragstrip, as well as street, strip, Circle Track, and other applications. Over a hundred models are available; choose the camshaft designed for your vehicle and engine family.

4.85 out of 5 stars ( 33 )

$531.95

Pioneer Race Balancers

These Pioneer race balancers bring the advantages of bonded rubber to high-revving race and street/race applications where an SFI-approved balancer is required. Each balancer features a precision CNC-machined AUSI 1045 steel center bonded to an equally strong steel inertia ring. The advanced design makes these balancers very lightweight for all-steel products. The steel inertia ring on these models is positively protected against forward and backward movement and has the added assurance of bonded rubber to eliminate spinning. Every Pioneer race balancer features easy-to-read, computer-etched timing marks.

4.66 out of 5 stars ( 50 )

$615.99