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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.
( 1 )
$542.77
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$679.93
Gator Fasteners modified rock arm pedestals are machined/milled for installation of head studs in your engine. Rather than having your old stock pedestals machined to size, Gator's are ready to drop right in and get back to building that motor. Features and benefits: * No downtime waiting on the machine shop to mill your old ones * No hassle of dealing with cores * Already sized to fit head stud kits whether it be Gator or ARP brand * High-quality precise machine work * High-strength metal * Brand new, not made from old cores
Not Yet Reviewed
$219.99
Hamilton Cams Cummins Tappets are solid valve lifters and are available for Cummins 24-valve and 12-valve 6-cylinder engines. They are also offered for Cummins 4BT 4-cylinder (8-valve) engines. Cast tappets for 6-cylinder engines feature a 1.450 in. diameter and do not interfere with the fuel pump eccentric on 12-valve engines. Much wider than the 1.100 in. tappets used in early 12-valve engines, their greater surface area makes them perfect replacements. These 24-valve and 12-valve tappets work well with the wider lobes of Hamilton Cams camshafts and promote much better lobe life with today's low zinc oils. For use over 5,000 rpm, with heavy valve springs, or a billet steel cam, Hamilton Cams offers 1.450 in. steel tappets. They are specially designed and manufactured to handle the higher pressures, rpm, and loads of competition use. Hamilton Cams Cummins 4BT tappets have a 1.300 in. diameter; much wider than many 4BT tappets that are only 1.10 in. These cast 1.300 in. tappets allow the pressures between the camshaft and the tappet to be spread over a significantly larger surface area to reduce lobe and lifter wear.
( 1 )
$169.99
Summit Racing™ Cummins retrofit trunnion kits are designed to help eliminate rocker body wear by converting the trunnion to a bushed-style assembly. The trunnions are manufactured from micro-polished hardened steel, and the bushings are made from bearing bronze. Oil-flow channels are machined in the trunnions to ensure adequate lubrication to the bushings. For diesel power and performance, upgrade to a Summit Racing™ retrofit trunnion kit.
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$262.99
Trust Fleece Performance to bring you the best OE alternative parts you need! Their replacement rocker arm assemblies are direct-fit replacements for specific Cummins engines that meet or exceed OE specifications. Service your diesel with the help of Fleece Performance.
Not Yet Reviewed
$119.99
Upgrade your Cummins valve springs and retainers with Fleece Performance spring and retainer kits. They are manufactured from "super clean" high-tensile chrome silicon steel with a proprietary multi-step heat treating process that minimizes load loss. The springs have a seat pressure of 105 lbs. with an open pressure of 195 lbs. at maximum lift. The retainers are through hardened 4140 chromoly steel and have a black oxide finish. Please note: Retainer locks are not included.
Not Yet Reviewed
$499.99
PRW rocker arm adjuster screws are designed to thread into your rocker arm. They are made of hardened steel and feature a black oxide finish for maximum durability. The screws can be adjusted to the pushrod by using the internal Allen head and the 12-point locknut.
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$9.26
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$9.86
Melling rocker arms, available for both domestic and import applications, meet or exceed OEM specifications. Depending on the OE design specifications, Melling rocker arms are provided in either stamped or cast materials. Built from only the best materials and manufacturing processes available, they are perfect replacements priced right for your budget. Melling recommends installing new rocker arms with every engine rebuild to assure long engine life and efficient performance. Answer the little knock under your hood with replacement rocker arms from Melling--a supplier of quality engine parts.
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$62.99
Hamilton Cams camshafts are available in a wide variety of profiles to improve airflow whether you're towing 30,000 lbs. in the mountains, drag racing, or sled pulling. They have the widest selection of cams to meet your specific turbo size, application, and rpm range needs from 1,500 to 6,500 rpm. OEM cast iron camshafts typically have a very hard exterior for long life with softer cores that can handle torsional forces without fracturing. However, when a camshaft that was designed for 2,800 rpm starts getting pushed beyond 5,000 rpm, you are a good candidate for a Hamilton Cams steel camshaft. Even more so when large injection pumps, heavy springs, and high-lift profiles are used. Because they are ground on precision CNC grinders, in most instances Hamilton Cams camshafts do not need to have the centerlines moved. However, because of OEM production tolerances, issues can arise when switching crankshafts and cam gears from different engines and year models. Incorrect camshaft centerlines can be remedied with an offset key. Hamilton Cams has keys that offset the installed centerline from 1.5 to 5 degrees. All Hamilton Cams camshafts are for off-road use only.
( 1 )
$648.99
Strengthen your Dodge Cummins with a new PRW Fulcrum upgrade kit for your Dodge Cummins Diesel. These rocker arm Trunnion-style upgrade kits are designed to upgrade your rocker arms to a bronze, bushed assembly and helps alleviate rocker body wear. Bushings are ensured lubrication with oil flow channels machined into the fulcrum. Sold individually, or as set of 12.
Not Yet Reviewed
$21.16
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$143.83
Fleece Performance billet rocker arm bridges offer a massive 2.5 times strength improvement over factory bridges for your diesel. They are machined from billet 8620 steel, surface ground for flatness, case hardened, and carburized. The rocker arm bridges also provide improved oiling to the valve stems, and they are branded with the Fleece Performance "F".
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$467.43
Cummins by Mopar offers replacement pushrods are available for specific diesel applications. These steel rods are machined to stock specifications, restoring efficient performance to your engine's camshaft and valve operation.
Not Yet Reviewed
$42.99
Clearance
ATS Diesel Performance valve spring kits feature a conical design that provides more valve control than a standard straight spring. The conical shape allows for a smaller and lighter spring retainer that is also stronger due to size reduction. Unlike other valve springs on the market, ATS valve spring kits can be used on a wide range of trucks, from stock all the way up to competition builds making 2,000 horsepower. Each spring is computer load mapped and matched within 1 lb. of seat pressure followed by a stress relief process to ensure quality and long-term reliability. For a one-and-done upgrade that will allow you to modify your engine to support more power down the road, the smart choice is ATS Diesel Performance valve spring kits.
Not Yet Reviewed
$522.50
$399.50
Higher rpm, increased boost/drive pressures, and aggressive camshaft profiles can result in valve float and cause serious damage to diesel valvetrains. Valves can also be blown open by higher boost and exhaust drive pressures creating reversion that allows exhaust gas to enter the cylinders on the intake stroke. This re-introduced exhaust gas shields fuel particles from oxygen, delays the start of combustion, decreases cylinder pressure and temperature, and lengthens the time needed to completely burn the fuel … all reducing power. Hamilton Cams valve springs can improve power by allowing higher boost pressures and rpm without valve float or excess reversion. Their single valve springs work well up to 4,500 rpm with moderate-lift camshafts and OEM-size valves. However, as rpm, valve lift, spring pressures, and valve sizes increase, dual Hamilton Cams valve springs are necessary to properly control the valves. For the highest camshaft lifts, they should be used with Hamilton Cams titanium retainers. Note: As a precautionary measure, titanium retainers should be inspected after every season for excessive wear.
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$19.99
Fleece Performance Stage 2 pushrods are stock-length units with robust forged cup ends to upgrade your diesel engine. They are produced from 4130 chrome molybdenum steel and heat treated to Rockwell Rc60 for outstanding strength and rigidity. Fleece Stage 2 pushrods are designed to stand up to higher valve spring pressure, rpms, and cylinder pressure while minimizing valvetrain deflection. Choose the set designed for your diesel.
Not Yet Reviewed
$400.14
Trend Pushrods Billet M2 Cummins lifters feature through-hardened M2 tool steel ground to perfection for their mushroom-style tappets designed for use with 12-valve and 24-valve Cummins diesel engines. When combined with a billet camshaft, these lifters allow for increased valve spring pressures and 5,000-plus rpm engine speeds. When you're building for high-performance, go with a leader in exotic materials racing experience and order the Trend Pushrods Billet M2 Cummins lifters best suited for your high-revving application. More product features include (see product page short description and Overview section for details): * Standard and DLC coating options available * Foot size diameters are 1.400 in. or 1.500 in. * Seats are 10mm or 5/16 in.
Not Yet Reviewed
$85.99
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$144.99
High-rpm can cause fluctuation in your valvetrain, leading to damaged parts. Add strength and stability in your valvetrain with PRW rocker arm pedestals and stands.
Not Yet Reviewed
$220.35
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