Diesel fuel systems, calibrated to spec.
We service, repair, and calibrate diesel injector pumps and fuel nozzles for commercial fleets, generators, and machinery — backed by genuine spare parts and technicians who work to tolerance, not guesswork.
Precision happens here.
Calibration bench, genuine parts in stock, and testing equipment that covers every major brand. See more in the full gallery below.
Full fuel-system workshop, under one roof.
From high-pressure pump rebuilds to nozzle spray testing, every job goes through our calibration bench before it goes back on the road.
Injector Pump Servicing & Repair
Strip-down, rebuild, and pressure-calibrate diesel injector pumps to manufacturer spec.
Fuel Nozzle Servicing & Testing
Ultrasonic cleaning and spray-pattern testing to restore atomisation and fuel efficiency.
Fuel-System Diagnostics & Maintenance
Bench and in-vehicle diagnostics to trace hard starts, power loss, and irregular idling to source.
Genuine Diesel Spare Parts
Sourced and supplied genuine — pumps, nozzles, seals, and fuel-system components.
Worn Component Replacement
Like-for-like replacement of fuel-system parts that are worn beyond safe tolerance.
Technical Support & Advice
Guidance on fuel-system care, part selection, and preventing repeat failures.
Built for working machines.
Commercial fleets, standby power, and heavy equipment all depend on diesel fuel systems that don't fail on the job.
Five stages. Every unit, every time.
Diagnose
We identify the fault — pressure loss, spray defect, or timing issue — before any part is opened.
Strip & Inspect
The unit is stripped down and every component checked against tolerance.
Calibrate & Test
Rebuilt units are run on the test bench and calibrated to correct pressure and spray pattern.
Fit & Verify
Refitted, and verified under load before the vehicle or machine leaves the workshop.
Report & Release
You receive the test results, work performed, and any recommended follow-up maintenance.
Registered, equipped, and built for repeat work.
Legally registered in Uganda
Larry Diesel Masters Africa Ltd is incorporated under the Companies Act, Cap 106, and registered with the Uganda Registration Services Bureau.
Genuine parts only
No aftermarket substitutes on critical fuel-system components — what goes back in is built to last.
Calibration-first workshop
Every pump and nozzle is bench-tested before it's signed off, not just visually inspected.
Skilled, focused technicians
Our team works on diesel fuel systems specifically — not a general sideline to other repairs.
Brands & systems serviced
What customers say.
They diagnosed the pump properly instead of just replacing parts and hoping for the best. Truck's been running clean since.
Our generator was smoking on start-up for weeks. They found the worn nozzle in one visit and had it back online by evening.
Genuine parts, honest pricing, and they explain what they're doing before they do it. That's rare in this trade.
Bring us the fault. We'll bring back the pressure.
Send us the symptoms — hard start, smoke, power loss, rough idle — and we'll book a bench diagnosis before any work begins.