Internal Engine Components

2007.5-2018 Dodge Cummins 6.7L - Mahle SS45962 Valve Stem Seals are made from OE quality materials that provides your 6.7L Cummins with stock performance. The Mahle Valve Sets are made to OE specification and are a direct factory replacement.

2001-2010 GMC/Chevy Duramax 6.6L - Mahle SS45974 Valve Stem Seals are made from OE quality materials that provides your 6.6L Duramax with stock performacne. The Mahle Valve Sets are made to OE specification and are a direct factory replacement.

Replacement cylinder head dowels for use between the engine block and cylinder head. Kit includes 2 dowels.

Replacement front cover dowels for use on Cummins 5.9L and 6.7L engines. Kit includes 2 dowels.

Replacement M22 thermostat plug for use on Cummins cylinder heads. Includes O-ring. Replaces Cummins part number 3089238.

Camshaft Bearing for your 1999-2007 Dodge 5.9L Cummins, Made to OEM quality, the Camshaft Bearing maintains factory performance.

Service the pistons in your 2004.5-2007 Dodge 5.9L Cummins with the MAHLE 42170 Piston Ring Set . (Select the Specification You require)

Service the pistons in your 1989-2002 Dodge 5.9L Cummins with the MAHLE 42221 Piston Ring Set . (Select the Specification You require)

Rebuild the engine in your 2008-2010 Ford 6.4L Powerstroke with the MAHLE 224-3666WR-0.25MM Piston With Rings.

Rebuild the engine in your 2008-2010 Ford 6.4L Powerstroke with the MAHLE 224-3666WR-0.50MM Piston With Rings.

Rebuild the engine in your 2008-2010 Ford 6.4L Powerstroke with the MAHLE 224-3666WR-0.75MM Piston With Rings.

Rebuild the engine in your 2008-2010 Ford 6.4L Powerstroke with the MAHLE 224-3666WR Piston With Rings.

Swap the pistons in your 2003-2007 Ford 6.0L Powerstroke with the OEM quality MAHLE 224-3503WR Pistons With Rings (Standard /0.01/0.020/ 0.030)

Use the MAHLE 224-3673WR Piston With Rings (Standard / .020 / 0.40) to rebuild your 2005-2007 Dodge 5.9L Cummins.

Upgraded 3/8” diameter pushrods for Cummins 24V diesel engines. Produced from 4130 chrome molybdenum steel and heat treated to Rockwell Rc60 for outstanding strength and rigidity.

Trust Fleece Performance to bring you the best OE alternative parts you need! Our replacement rocker armassembly fits 1998.5-2018 Dodge 5.9L and 6.7L Cummins engines.

The Hamilton Cams 07-T-002 1.45" Billet Steel Tappets for your 1989-2018 Dodge 5.9L Diesel feature a wider surface area that allows them to spread the load better. With today's inferior oils, this is a major benefit. The 1.45" steel tappets are for use on applications over 5000 RPM with heavy valve springs, or a billet steel cam.

The Hamilton Cams 07-T-001 1.45" Tappets are specially designed to fit all 1989-2018 Dodge 5.9L & 6.7L Diesel engines. At 1.45" they will not have interference with the Fuel pump eccentric on 12v engines and are much wider than the 1.1" tappets used in early 12v engines. This means they have more surface area to work with wider lobes which will promote much better lobe life with today's low zinc oils.

If you're making over 30lbs of boost/drive pressure or over 3500rpm with your 1989-1998 Dodge 5.9L Diesel, Hamilton Cams 07-S-001 Beehive Valve Springs will help fix several negative things that you're experiencing. First, valve float, which can cause serious damage to the valvetrain.

The Hamilton Cams 07-C-002 Bolt-On Camshaft Retainer is specially made for your 1989-2018 Dodge 5.9/6.7L Diesel. This bolt-on retainer will ensure that the cam gear is not pushed off of the cam in high rpm, high fuel delivery situations.

The Hamilton Cams 07-C-Retainer Bronze Cam Retainer is a direct-fit replacement for the thrust plate retainer in your 1989-2018 Dodge 5.9L/6.7L Diesel. Engineered to factory-style specs, but tough enough to handle competition use, this cam retainer will withstand high-thrust injection pumps such as P7100, P8600, or Sigma pump. This cam retainer is constructed out of high-quality bronze and can be used in street, competition and as a stock replacement.

The Hamilton Cams 07-C-HC2 Camshaft Bushing Set required to run a steel camshaft in your 1989-2018 Dodge Ram 5.9/6.7L Diesel. These bushings are required to run a steel cam, but they're also an excellent improvement if you're utilizing springs with a nose pressure of more than 450 lbs.

The Hamilton Cams 07-C-HC1 Camshaft Bushing Set you need when running a steel camshaft in your 1989-2018 Dodge Ram 5.9/6.7L Diesel. The bushings are needed to run a steel cam but are also a great upgrade if you are using springs that have over 450lbs of nose pressure.

Use the Hamilton Cams 07-k-42 Camshaft Key on your camshaft. This is a stock replacement straight key for the 6BT engines, both 12-valve and 24-valve.

The Hamilton Cams 07-S-002 Competition Dual Valve Springs are the perfect option for your high performance 1989-1998 Dodge 5.9L Diesel. There comes a point as rpm, lift and spring pressures increase, that a single spring is no longer up to the task of controlling the valves.

Correct valve spring pressure is very important to power production in your 24V Diesel. The Hamilton Cams 07-S-110 Competition Valve Springs allow higher boost pressures and rpm without valve float or unacceptable levels of reversion.

Use the Hamilton Cams 07-k-42 Camshaft Key on your camshaft. This is a stock replacement straight key for the 6BT engines, both 12-valve and 24-valve.

The Hamilton Cams 07-P-002 Extreme Duty Pushrods are a must-have on your 1989-1998 Dodge 5.9L Diesel that makes over 750HP. On these high hp engines, the cylinder pressures dictate that you step up to the extreme duty pushrods which consist of a 3/8" .095" wall intake pushrod and a 7/16" .120" exhaust pushrod.

The Hamilton Cams 07-P-004 Extreme Duty Pushrods from XDP are a must-have if you are making over 500hp in your 1998.5-2018 Dodge 5.9L/6.7L Diesel. The cylinder pressures acting on the valve can bend the OEM pushrods before the valve opens. This can retard cam timing and reduce valve lift.

Upgrade the valvetrain on your 1998.5-2018 Dodge 5.9L/6.7L Diesel with Hamilton Cams 07-R-003 High-Performance OE Style Rocker Arms. These rocker arms incorporate DLC Coated Trunnions for reduced friction and swaged steel tips for longer life.

Get the Hamilton Cams 07-C-178/208S Steel Camshaft to get greater power in the lower RPM range for your Dodge/Ram 5.9/6.7L Diesel powered truck. This steel camshaft is an excellent upgrade to increase all-around efficiency and will work with any size turbo. If your truck is frequently driven at high altitudes, or if you spend a lot of time driving at lower RPMs, this camshaft will greatly improve drivability.

The Hamilton Cams 07-S-004 Tool Steel Retainers are the perfect addition to Hamilton Valve Springs on your 1998.5-2018 Dodge 5.9L/6.7L Diesel. These Tool Steel Retainers feature an ultralight design and work great in applications running over 4500 RPM, and with a cam that has over .320" lobe lift.

The Hamilton Cams 07-CC-24V178 Towing 178/208 Camshaft Combo is engineered for the daily driver or tow rig looking for better efficiency in your Dodge/RAM Diesel. This camshaft has a short duration and wide lobe separation angle and the least amount of overlap (when intake and exhaust valves are both open at the same time) than any other Hamilton camshaft. If you live in higher elevations, do a lot of heavy hauling or are looking for greater efficiency for daily driving, this cam can help.

The Hamilton Cams 07-C-178/208 Camshaft is the most efficient camshafts tested for the Dodge/RAM Diesel. On a moderate street truck, it will net you the best economy out of all Hamiltom Cams. Due to its short duration and wide lobe separation angle, it also has the least overlap (when intake and exhaust valves are open at the same time) of any Hamilton camshaft.

Increase performance in the valvetrain of your 1998.5-2018 Dodge 5.9L / 6.7L Diesel with the Hamilton Cams 07-S-003 Valve Springs. Stock 24v springs have 78-82lbs of seat pressure at 1.380″. If you are over 35psi (boost or drive pressure), stock springs do not fully control the valvetrain. Intake and exhaust valves can be blown open by boost and exhaust drive pressure which allows reversion.

Genuine OEM rocker arm & pedestal assembly

1/2" Hose Barb to 3/4"-16 O-ring (-8 AN)

Replacement 1/8" NPT fitting with integral face seal O-ring.

Our 3/4"-16 O-ring to 1/8" NPT adapter with 1/8 NPT plug is perfect for adding a pressure gauge port on multiple applications. The adapter is made from black anodized aluminum and the 1/8 NPT plug is produced from stainless steel.

-8AN Female Swivel to 7/8-14 O-ring