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HAMILTON CAMS: CUMMINS CAMS, SPRINGS, PUSHRODS & CONVERSION KITS

Hamilton Cams is a go-to for serious Cummins valvetrain performance—street to competition. Explore cast cams like 188/220 and 178/208, match them with the correct seat pressure using 103# or 110# springs and tool steel retainers, and button it up with extreme-duty pushrods and flat-tappet conversion kits for reliable power gains.

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Why CPP Diesel for Hamilton Cams

Curated combos that match cam profiles to the right spring pressure and hardware for your goal.
All-internal links and real inventory for Cummins 5.9L/6.7L (12V & 24V) builds.
Fast fulfillment and knowledgeable support from enthusiasts who build and drive diesel.

Helpful Notes

Seat pressure matters: 103# is common for street/utility builds, while 110# suits higher rpm/boost with proper setup.
Pair cams with appropriate retainers/locks and verify piston-to-valve and lifter preload on assembly.
Re-set valve lash after any head bolt/ stud re-torque and after initial break-in.

FAQ

Which Hamilton cam is best for towing vs. street/strip?

The 178/208 is a proven towing/street grind for 12V applications, while the 188/220 is a versatile upgrade for 5.9L/6.7L 12V/24V aiming for broader power under the curve. See 178/208 and 188/220.

Do I need 103# or 110# valve springs?

Most mild builds use 103# springs; for higher rpm/boost or aggressive ramps, step to 110# with tool steel retainers. Start here: 103# springs and 110# options.

Are tool steel retainers required?

At higher rpm/boost levels, tool steel retainers improve durability and reduce the risk of float. See our retainers & keepers.

What pushrods work with Hamilton cams on a 24V build?

Hamilton’s Extreme-Duty 12mm pushrods are a common match for stout 24V builds: 07-P-004.

Can I convert my 6.7L to flat tappet with a Hamilton cam?

Yes—use the 6.7L flat-tappet conversion kit paired with a Hamilton cam profile: kit for 2019–2024.

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HAMILTON CAMS 07-B-001 BILLET VALVE BRIDGES FOR 98.5–18 CUMMINS 5.9L 24V ENGINE

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HAMILTON CAMS 07-S-002 12V DUAL VALVE SPRING SET FOR 89–98 CUMMINS 5.9L 12V

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Now: $599.00

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HAMILTON CAMS 07-S-001 165# BEEHIVE VALVE SPRINGS FOR 89–98 CUMMINS 5.9L 12V

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Now: $389.00

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HAMILTON CAMS 07-CC-24V188 CAST 188/220 CAMSHAFT COMBO FOR 98.5–18 CUMMINS 5.9L/6.7L 24V

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HAMILTON CAMS 07-S-004 STEEL TOOL RETAINERS FOR 98.5–18 CUMMINS 24V 5.9L/6.7L

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HAMILTON CAMS 07-S-110 COMPETITION 110# VALVE SPRING SET FOR 98.5–24 CUMMINS 5.9L/6.7L 24V

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HAMILTON CAMS 07-C-220/240 STEEL 220/240 CAMSHAFT FOR 89–18 CUMMINS 5.9L/6.7L

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HAMILTON CAMS 07-H-002 LARGE VALVES FOR 89-98 5.9L CUMMINS 12V

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HAMILTON CAMS 07-CC-24V178 CAST 178/208 CAMSHAFT COMBO FOR 98.5–18 CUMMINS 5.9L/6.7L 24V

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HAMILTON CAMS 07-C-178/208 CAST 178/208 CAMSHAFT FOR 89–18 CUMMINS 5.9L/6.7L

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HAMILTON CAMS 07-CC-12V188 CAST 188/220 CAMSHAFT COMBO FOR 89–98 CUMMINS 12V 5.9L

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HAMILTON CAMS 07-C-188/220S STEEL 188/220 CAMSHAFT FOR 89–18 CUMMINS 5.9L/6.7L

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HAMILTON CAMS 07-CC-12V178 CAST 178/208 CAMSHAFT COMBO FOR 89–98 CUMMINS 12V 5.9L

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HAMILTON CAMS 07-C-188/220 CAST 188/220 CAMSHAFT FOR 89–18 CUMMINS 5.9L/6.7L

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HAMILTON CAMS 07-T-002 DLC COATED 1.45" BILLET TAPPETS FOR 89–18 CUMMINS 5.9L/6.7L

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HAMILTON CAMS 07-P-002 EXTREME DUTY PUSHRODS FOR 89–98 5.9L CUMMINS 12V

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Now: $219.00

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HAMILTON CAMS 07-T-001 1.45" TAPPETS SET FOR 89–18 CUMMINS 5.9L/6.7L

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HAMILTON CAMS 07-C-001 ZINC ADDITIVE FOR CAMSHAFT BREAK-IN

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Now: $15.99

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HAMILTON CAMS 07-P-004 EXTREME DUTY 12MM PUSHRODS FOR 98.5–18 5.9L/6.7L CUMMINS 24V

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HAMILTON CAMS 07-C-188-220 CAST CAM 188/220-109LSA FOR 89–18 CUMMINS 5.9L/6.7L

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HAMILTON CAMS 07-C-RETAINER BOLT ON BRONZE CAM RETAINER FOR 89–07 CUMMINS 5.9L 12V/24V

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HAMILTON CAMS 07-C-002 BOLT-ON CAM RETAINER FOR 89–18 5.9/6.7L CUMMINS 12V/24V

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HAMILTON CAMS 07-S-003 103# VALVE SPRINGS FOR 98.5–18 CUMMINS 5.9L/6.7L 24V

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HAMILTON CAMS 07-B-001 BILLET VALVE BRIDGES FOR 98.5–18 CUMMINS 5.9L 24V ENGINE
Upgrade your 24-valve Cummins valvetrain with Hamilton Cams 07-B-001 bridges. These are manufactured using a forging process that improves grain structure and strength, tested well beyond 3,000 HP, and come in about 5% lighter than stock for quicker...

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HAMILTON CAMS 07-S-002 12V DUAL VALVE SPRING SET FOR 89–98 CUMMINS 5.9L 12V
Dual-spring control for high RPM, lift, and boost. Hamilton Cams 07-S-002 is a USA-made dual valve spring set for the 1989–1998 Cummins 5.9L 12-valve. It includes retainers and 10° locks and is suitable for aggressive cam profiles (good to ~0...

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HAMILTON CAMS 07-S-001 165# BEEHIVE VALVE SPRINGS FOR 89–98 CUMMINS 5.9L 12V
Upgrade valve control and rpm stability on your 12-valve Cummins with the Hamilton Cams 07-S-001 165# Beehive Valve Springs. Ideal for performance street builds, towing with bigger turbos, or cam upgrades where additional seat/open pressure and...

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HAMILTON CAMS 07-CC-24V188 CAST 188/220 CAMSHAFT COMBO FOR 98.5–18 CUMMINS 5.9L/6.7L 24V
The Hamilton Cams 07-CC-24V188 combo is a proven 188/220 cast camshaft package for 1998.5–2018 Cummins 24V (5.9L & 6.7L). It’s built to drop EGTs, add mid-range power, and improve spool-up while keeping street/tow manners. Kit includes...

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HAMILTON CAMS 07-S-004 STEEL TOOL RETAINERS FOR 98.5–18 CUMMINS 24V 5.9L/6.7L
These Hamilton Cams 07-S-004 tool steel valve spring retainers are an ultralight, high-strength upgrade for 1998.5–2018 Cummins 24-valve 5.9L/6.7L applications. Pair them with the correct valve springs to stabilize the valvetrain at elevated RPM...

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HAMILTON CAMS 07-S-110 COMPETITION 110# VALVE SPRING SET FOR 98.5–24 CUMMINS 5.9L/6.7L 24V
Hamilton 110 lb seat-pressure competition springs for 24-valve Cummins. Ideal for high-RPM, high-boost builds and heavy valvetrain control. Good to ~6,500 RPM with the correct supporting parts. Not recommended for daily-driver comfort. Fitment 1998...

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HAMILTON CAMS 07-C-220/240 STEEL 220/240 CAMSHAFT FOR 89–18 CUMMINS 5.9L/6.7L
Serious top-end Cummins cam. The Hamilton Cams 07-C-220/240 steel core is built for high-RPM 5.9L/6.7L builds where you want big airflow up top. Typical operating range is ~3,500–5,200 RPM and it shines in drag and 3.0-class sled-pull...

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HAMILTON CAMS 07-H-002 LARGE VALVES FOR 89-98 5.9L CUMMINS 12V
Unlock airflow on your 12-valve build with Hamilton Cams 07-H-002 Large Valves for the 1989–1998 5.9L Cummins. Oversized 45° valves increase curtain area and swirl for stronger mid-range and top-end while keeping OEM-style reliability...

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HAMILTON CAMS 07-CC-24V178 CAST 178/208 CAMSHAFT COMBO FOR 98.5–18 CUMMINS 5.9L/6.7L 24V
The Hamilton Cams 07-CC-24V178 combo is a proven 178/208 cast cam package for 1998.5–2018 Cummins 24V (5.9L & 6.7L) trucks. It’s built to improve spool-up, widen usable torque, lower EGTs, and maintain drivability in work and tow rigs...

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HAMILTON CAMS 07-C-178/208 CAST 178/208 CAMSHAFT FOR 89–18 CUMMINS 5.9L/6.7L
The Hamilton Cams 07-C-178/208 is a proven street/tow cam that broadens torque, drops EGT 200–300°F, and improves spool on 1989–2018 Cummins 5.9L/6.7L (12V & 24V). It’s a direct-fit flat-tappet profile and pairs best with...

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HAMILTON CAMS 07-CC-12V188 CAST 188/220 CAMSHAFT COMBO FOR 89–98 CUMMINS 12V 5.9L
The Hamilton Cams 07-CC-12V188 is a proven 188/220 “hot street” camshaft combo for 1989–1998 5.9L Cummins 12-valve builds. It broadens mid-range, drops EGTs ~200–300°, and supports higher RPM with upgraded valvetrain...

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HAMILTON CAMS 07-C-188/220S STEEL 188/220 CAMSHAFT FOR 89–18 CUMMINS 5.9L/6.7L
The Hamilton Cams 07-C-188/220S Steel 188/220 is a proven drop-in profile for street/tow Cummins builds. Typical results include stronger mid-range, quicker spool, and reduced EGTs with proper supporting parts. Info straight from our listing: RPM range...

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HAMILTON CAMS 07-CC-12V178 CAST 178/208 CAMSHAFT COMBO FOR 89–98 CUMMINS 12V 5.9L
The Hamilton Cams 07-CC-12V178 combo brings Hamilton’s proven 178/208 “efficiency/tow” cam to your 1989–1998 12-valve Cummins with a complete kit that improves bottom-end torque, drops EGT 200–300°F, and spools...

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HAMILTON CAMS 07-C-188/220 CAST 188/220 CAMSHAFT FOR 89–18 CUMMINS 5.9L/6.7L
Street/tow favorite for quick spool, lower EGT, and broad torque. The HAMILTON CAMS 07-C-188/220 cast camshaft is a proven upgrade for 1989–2018 Cummins 5.9L/6.7L engines (12V & 24V) that want strong off-idle response and mid-range without...

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HAMILTON CAMS 07-T-002 DLC COATED 1.45" BILLET TAPPETS FOR 89–18 CUMMINS 5.9L/6.7L
DLC-coated 1.45" billet tappets engineered for high RPM Cummins builds using 103–110# valve springs and aggressive cam profiles. The larger 1.45" face improves stability vs early 1.1" tappets and the DLC (diamond-like carbon) coating reduces...

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HAMILTON CAMS 07-P-002 EXTREME DUTY PUSHRODS FOR 89–98 5.9L CUMMINS 12V
Hamilton’s 07-P-002 Extreme Duty Pushrods are built for high cylinder pressure 12-valve builds. Each pushrod uses a 10.5 mm x 0.120" wall construction with ~5,000 lb buckling strength—a massive step up over stock—making them ideal for...

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HAMILTON CAMS 07-T-001 1.45" TAPPETS SET FOR 89–18 CUMMINS 5.9L/6.7L
Hamilton’s 1.45" tappets are a proven upgrade for Cummins valvetrains. The wider 1.45" footprint increases lobe contact area versus early 1.1" lifters to promote better lobe life with today’s low-zinc oils, and they clear the 12V fuel pump...

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HAMILTON CAMS 07-C-001 ZINC ADDITIVE FOR CAMSHAFT BREAK-IN
Protect flat-tappet camshafts during first fire-up and early miles. Hamilton’s 07-C-001 zinc additive boosts ZDDP levels to the sweet spot for cam and lifter survival during break-in on Cummins and other flat-tappet engines. With modern low-ZDDP...

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HAMILTON CAMS 07-P-004 EXTREME DUTY 12MM PUSHRODS FOR 98.5–18 5.9L/6.7L CUMMINS 24V
Hamilton’s Extreme Duty 12mm pushrods are a proven upgrade for high cylinder pressure Cummins builds. Their 3-piece construction, .120" wall thickness, and large 12mm (0.472") diameter resist deflection, maintain cam timing, and keep valve lift...

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HAMILTON CAMS 07-C-188-220 CAST CAM 188/220-109LSA FOR 89–18 CUMMINS 5.9L/6.7L
The Hamilton Cams 07-C-188-220 is a proven 188/220 cam on a 109 LSA for 1989–2018 5.9L & 6.7L Cummins builds. It’s a popular street/tow profile that broadens mid-range power while maintaining drivability when paired with the correct...

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HAMILTON CAMS 07-C-RETAINER BOLT ON BRONZE CAM RETAINER FOR 89–07 CUMMINS 5.9L 12V/24V
The Hamilton Cams 07-C-RETAINER is a bolt-on bronze cam retainer for 1989–2007 Cummins 5.9L engines (12V & 24V). It replaces the factory retainer plate to help control camshaft endplay and maintain stable valve timing under load and RPM...

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HAMILTON CAMS 07-C-002 BOLT-ON CAM RETAINER FOR 89–18 5.9/6.7L CUMMINS 12V/24V
The Hamilton Cams 07-C-002 bolt-on cam retainer keeps your cam gear from walking off the cam during high RPM / high fuel delivery use on mechanically injected Cummins engines with helical-cut cam gears. Use red Loctite and torque the center bolt to 44...

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HAMILTON CAMS 07-S-003 103# VALVE SPRINGS FOR 98.5–18 CUMMINS 5.9L/6.7L 24V
Hamilton 103 lb seat pressure springs are a proven upgrade for high boost/drive pressure and elevated RPM on 24-valve Cummins. They reduce valve float and reversion while maintaining streetable manners on tuned daily/tow trucks. Fitment 1998...

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