Engine Rebuild and Overhaul
When your powerplant reaches end-of-life tolerances, we strip it down to the bare block and measure every journal, bore, and deck for wear. Crankshafts are polished or replaced, liners are honed, and critical fasteners are upgraded to OEM spec or better. We install new pistons, rings, bearings, seals, and gaskets using clean-room procedures that keep contaminants out. Updated ECU calibrations optimise fuel delivery for the fresh internals and today’s low-sulphur diesel. Each engine completes a hot-run test-stand cycle to verify oil pressure, compression, and emissions compliance. You drive away with factory power, improved efficiency, and a warranty that matches new-engine coverage.
Factory-Spec Clearances
All tolerances set with digital bore gauges and torque-angle tools for OEM accuracy.
Dyno-Verified Power
Every rebuilt engine completes a hot-run on our dyno stand to confirm horsepower, torque and emissions.
12-Month / 100 000-Mile Warranty
Parts и labour coverage honoured across our full service network.
Complete Engine Rebuilds for Heavy-Duty Fleets
When a diesel powerplant reaches end-of-life tolerances, a full overhaul returns it to like-new performance—saving you the cost of a replacement truck and boosting resale value. Our rebuild program handles everything from Class 8 tractors to medium-duty delivery rigs, restoring power, fuel efficiency and reliability in one planned downtime window.
What’s Included in Our Engine Rebuild and Overhaul?
Our in-frame and out-of-frame packages replace every critical wear surface and recalibrate the engine for modern fuel standards:
Block hot-tank and crack check
Cylinder re-sleeve and hone
Deck and head resurfacing
New pistons, rings, and bearings
Crankshaft polish or replace
Complete valve and guide job
Injector flow-match and test
Injector flow-match and test
ECU reflash with latest maps
Dyno run and leak-down report
Why Choose Merx for Engine Overhauls?
Certified people, clean-room processes and transparent documentation turn a complex job into a predictable investment:
OEM-Certified Technicians — trained on Cummins, Detroit, CAT and PACCAR platforms.
ISO Clean-Room Assembly — dust-controlled benches protect fresh internals.
Documented Clearances — you receive a build sheet with every mic and torque reading.
Quick Turnaround — typical in-frame rebuild finished in 5–7 business days.
Flexible Financing — deferred-payment plans spread cost over the engine’s new life-cycle.
