This month's special

The 2019+ Cummins lifter problem, fixed permanently.

$8,499INSTALLED

Hamilton Cams solid lifter conversion kit for Ram 2500 / 3500 6.7L Cummins — the brand diesel builders trust. Forged cam, DLC tappets, HD pushrods, adjustable rockers, installed by diesel specialists with a 2-year / 24,000-mile warranty, before your factory lifters cost you a $25,000+ engine.

Call (503) 694-4887 Get my quote →

2-yr / 24k-mile warrantyTwo-day turnaroundFinancing available4.6★ on Google · 720+ reviews

Is your truck at risk?Why 2019–2025 6.7 Cummins lifters fail

In 2019 the 6.7 Cummins switched to hydraulic roller lifters with no needle bearings and marginal oiling. When a roller stops spinning it drags across the cam lobe instead of rolling — grinding the lobe flat and pumping metal through the whole engine. It has been documented from under 10,000 miles to past 100,000. The Stellantis 10W-30 oil bulletin lowers the risk; it does not remove the design flaw. The only permanent fix is removing the failure-prone parts entirely.

2019–2025 Ram 2500 / 3500 with the 6.7L Cummins
Ticking or tapping on cold start
You tow heavy or run mountain grades
Out of powertrain warranty — or getting close
You plan to keep this truck for the long haul

Hamilton Cams solid lifter conversion kit components

What's includedEverything in your $8,499 Hamilton Cams conversion

Hamilton Cams forged solid-lifter camshaft

Hamilton's proven profile built for towing torque — the valvetrain philosophy that made Cummins legendary.

Hamilton DLC-coated tappets

Hamilton Cams' diamond-like-carbon coated lifters designed for the load the factory rollers couldn't handle.

Heavy-duty pushrods

Rated 3,500+ lb buckling force. No flex, no failure.

Adjustable rocker assemblies

Precision valve lash set to spec — and serviceable for life.

All gaskets, seals & fluids

New gaskets and seals, correct-spec oil and filter. Nothing reused that shouldn't be.

Inspection & road test

Full post-install inspection, road test and optional oil-analysis follow-up.

6.7 Cummins in the bay, head off for the Hamilton Cams conversion — In-frame conversion — the engine stays in the truck.

Hamilton Cams solid lifters going into the Cummins block — Hamilton Cams solid lifters going in — no more failed roller lifters.

Final stages of the Hamilton Cams lifter install on a Cummins — Final stages of the install — buttoned up and torqued to spec.

What it costs — and what waiting costsA fraction of an engine

Out-of-warranty engine replacement at a dealer

$25,000+

Plus weeks of downtime — and it comes back with the same lifters.

This month's special

$8,499

Hamilton Cams solid lifter conversion kit, parts and labor, installed

Financing available — most conversions work out to a manageable monthly payment. Price covers 2019–2025 Ram 2500/3500 6.7L; if inspection finds cam damage we quote contingencies up front, no surprises.

What Cummins owners sayRated 4.6★ on Google

“Harold and his crew are the pros. I brought my new 2026 Ram 2500 in… Customer service at its best! When it was time to pick up my truck they had it right up front looking good. I was amazed at the transformation.”— Randy S., 2026 Ram 2500

“Hands down the best shop I've ever worked with, regardless of vehicle or city… Everyone in the shop was knowledgeable. I felt completely comfortable putting my truck in their hands.”— Jordan P., F-450 dually

“Great customer service. Kept me updated on what was going on… Used BD exhaust manifolds that are made to last, unlike the OEM ones that warp over time. Great turnaround time.”— Johnny K., Ram 1500

Why PAD Diesel Performance2-year / 24,000-mile warranty. In writing.

Diesel is what we do

Our shop is built around the 6.7 Cummins — techs with decades of combined diesel experience, in Scappoose since day one. Family-owned.

You see everything

Digital inspections with photos texted to your phone before any work happens. Your old parts go home with you if you want them.

We answer our phones

A real service writer picks up during business hours. After hours, you're first on tomorrow's list.

Worth the drive

Customers come from across Oregon and Washington. Most conversions are done in two business days — we schedule around your trip.

Parts and labor covered

Two years or 24,000 miles on the conversion, in plain English. Ask us to walk you through it before you book.

Financing available

A conversion is a fraction of an engine; payments make it a planning decision instead of an emergency.

FAQQuestions we hear every week

How long does the conversion take?Most trucks are in and out in two business days. Driving in from out of the area? We schedule around your trip.

Will this void my factory warranty?Under the Magnuson-Moss Warranty Act a manufacturer can't void your whole warranty over aftermarket parts — they can only deny a claim they prove the modification caused. Most of our customers are at or near powertrain-warranty expiry, which is exactly when the factory lifter risk becomes all yours.

Do solid lifters make the engine louder?A slight classic Cummins valvetrain character at idle — the sound these engines made for decades. Most owners love it. We set expectations honestly before the job.

Can you do it in-frame?Yes. The flat-tappet conversion doesn't require the dealer's roller-lifter tool, so the engine stays in the truck.

What if my cam is already damaged?We inspect first and quote contingencies up front — no surprises. That's the point of the free risk assessment: catch it before it's metal in the oil.

Is the 10W-30 TSB enough?It reduces risk. It does not fix the design. The rollers still have no needle bearings and marginal oiling.

Do you take trucks from outside Portland?Yes — Oregon coast to central Washington. Two-day turnaround target, scheduled around your trip.