Get in Touch
  • 04 939 6204
  • 71/73 Port Road, Seaview, Lower Hutt 5010

Our Services

Heavy-diesel servicing that works the way you do. For fleets and owner-drivers.

Our services

Servicing Diesel Engines Since 1973

Since 1973, we’ve kept powerful diesel engines performing in tough conditions. From a single owner-driver unit to multi-site fleets, our team handles diagnostics, repairs and preventative maintenance with straightforward advice and practical solutions.
Services

What we do

Fleet Servicing

Planned maintenance that fits your routes and hours, with multi-unit bookings and clear ETAs. Records and reminders keep compliance simple and downtime low.

  • Service intervals mapped to real-world usage

  • Consolidated invoicing and admin-friendly records

  • Optional site visits by arrangement

  • Priority scheduling for critical units

Owner-driver Servicing

Straight talk and quick turnarounds so you can stay earning. Up-front plan and price, quality parts, proper testing.

  • Routine servicing and safety checks

  • Fault-finding and practical fixes

  • Clear notes on what was done and why

  • Fair pricing with no surprises

Diagnostics & Fault Finding

Scan tools plus hands-on checks to pinpoint the real issue. We confirm the plan and price before work begins and only proceed with approval.

  • Warning lights, no-start/hard-start, power loss

  • Live data and component testing

  • Root-cause repair, not symptom chasing

  • Fix verified and lights cleared

Engines & fuel systems

Injectors, pumps, turbos, gaskets and cooling systems installed to spec and tested under load. Expect reliable power, clean running and fewer repeat visits.

  • Injector and pump work to the manufacturer's spec

  • Turbo, intercooler and sealing repairs

  • Overheating and coolant system fixes

  • Post-repair performance checks

Electrical & Electronics

Alternators, starters, batteries, sensors and wiring repaired with proper test procedures. ECU-related faults are diagnosed the right way and verified before handover.

  • Charging/starting system repairs

  • Loom repairs and secure terminations

  • Sensor and module diagnostics

  • Stable readings confirmed pre-handover

Fuel Tanker Servicing

Bulk fuel tankers require specialised checks and documentation. We support 3-monthly inspections and HSNO obligations with clear reports and timelines.

  • 3-monthly tanker inspections (bulk fuel trucks and trailers)

  • HSNO compliance items and documentation

  • Pressure testing and hose/valve integrity checks

  • Fire extinguisher checks and replacements

  • Safe Load Pass preparation and servicing

Preventative Maintenance

Service intervals matched to workload and conditions, not guesswork. We catch issues early and balance reliability with cost.

  • Condition checks and fluid analysis

  • Filter schedules and reminders

  • Wear-item replacements before failure

  • Practical recommendations you can action

Compliance & Pre-COF checks

Focused readiness so you’re set to pass first time. Minor issues are tidied on the spot where possible; the rest are scheduled.

  • Lights, brakes, steering and leaks

  • Emissions-related components reviewed

  • Clear list with timeframes and costs

  • Records provided for your files

Breakdown & Urgent Work

Off the road and need help fast? We confirm the fastest option and timing, then keep you updated until you’re rolling again (subject to availability).

  • Priority assessment and triage

  • Realistic ETAs and parts availability

  • Repair plan agreed before work starts

  • Status updates through to handover

FAQ

Frequently Asked Questions

Most checks are completed within 1–2 hours; complex faults may take longer. We’ll confirm time and cost before we begin.

We test first and only replace when it’s the right fix. You’ll get a clear report and options.

Yes, maintenance schedules, multi-unit bookings and one invoice for parts and servicing.

Key Brands

Our key brands include:

Cummins • FAW Trucks • Fleetguard • International • MAN • Western Star

Location
  • 71/73 Port Road, Seaview, Lower Hutt, Wellington 5010
  • Mon – Fri: 8am till 5pm | Saturday 8am till 12pm (by appointment)
© 2026 Hydradiesel Engineering Ltd. All rights reserved.