Black RAM 2500 Heavy Duty front view

RAM 3500 Servicing

RAM 3500 minor servicing is fixed at $599, covering the full Cummins oil capacity, OEM filtration and a heavy-duty inspection built around how the truck is loaded. Most 3500s we see are pulling gooseneck or fifth-wheel trailers, so we assess brakes, driveline and cooling against real towing use rather than an idealised schedule.

RAM 3500 servicing at a glance

The RAM 3500 is the heaviest truck we service regularly, and the one where servicing shortcuts show up fastest. Dual-rear-wheel trucks add tyre pressure and brake wear considerations most workshops overlook, and the payload these trucks carry means rear suspension, hitch mounting and trailer brake setup all need checking as part of a service, not as a separate job.

DetailSpecification
Engines we service6.7L Cummins turbo diesel I6, single or dual rear wheel
Service interval12,000 km or 12 months — shorter for gooseneck and fifth-wheel work
Minor service price$599 fixed
Oil and filtersPremium Penrite oil, OEM filters
WarrantyLogbook stamped — factory warranty retained

What's included in a RAM 3500 minor service

  • Premium Penrite oil to the RAM 3500's full factory capacity — roughly 12 litres of 15W-40 or 5W-40 on the 6.7 Cummins
  • OEM oil filter and genuine parts where applicable
  • Full safety inspection: brakes, steering, suspension, tyres and underbody corrosion
  • Factory-level scan-tool health check with fault codes and, on diesels, DPF regeneration history
  • Driveline, transmission and coolant condition assessed against your actual towing use
  • Logbook stamped so your manufacturer warranty and consumer-law rights stay intact

RAM 3500 service schedule and costs

IntervalWhat we doPrice
Every 12,000 km / 12 monthsHD minor service — oil, filter, full inspection$599
Every 12 monthsFuel filter setQuoted
40,000 km with heavy towingTransmission fluid and filter serviceQuoted
Every 40,000 kmDiffs and transfer case fluidQuoted
Each serviceTow setup, brake controller and tyre load checkIncluded

Common RAM 3500 problems we fix

  • Transmission and diff heat on sustained gooseneck and fifth-wheel towing
  • DPF and EGR faults on trucks that spend weekdays unloaded on short trips
  • Dual-rear-wheel inner tyre wear and pressure issues that go unnoticed
  • Rear spring sag and hitch geometry problems on heavily loaded trucks
  • Trailer brake controller calibration drifting out with different trailers
  • Injector and fuel system wear at high kilometres

Signs your RAM 3500 is due for a service

  • Transmission or diff running hot on long gooseneck and fifth-wheel hauls
  • Rear sitting low or hitch geometry looking nose-down under load
  • Uneven inner tyre wear on dual-rear-wheel trucks
  • Trailer brakes grabbing or lagging after a controller change
  • Regen warnings after weeks of short unloaded driving

RAM 3500 servicing when you tow

A RAM 3500 spends most of its life near its rated capacity, so we build the service around load. Fluid condition in the transmission, diffs and transfer case gets assessed every visit, brakes and hubs are inspected against real trailer weights, and tow setup — hitch height, ball weight, brake controller calibration and tyre pressures for the load — is checked as part of the service.

Dealer servicing vs an American truck specialist

Logbook stamped, factory schedule followed, warranty retained — with a workshop that understands gooseneck and fifth-wheel use rather than treating a 3500 like a large ute.

Only our fixed-price minor servicing is published — $599 for the RAM 3500. Every other job is quoted before we start, so nothing lands on your invoice that you haven't approved.

Frequently asked questions

Is a RAM 3500 service more expensive than a 1500?
Yes — the HD minor service is $599 versus $469 for a 1500-series truck, mainly because the 6.7 Cummins takes roughly double the oil and uses heavier-duty filtration.
Do you service dual-rear-wheel RAM 3500s?
Yes, including inner tyre condition and pressure checks that are easy to miss, plus brake and hub inspection appropriate to the loads these trucks carry.
Do you service RAM 3500s used for gooseneck towing?
Yes, and we check hitch mounting, rear suspension condition, brake controller calibration and driveline fluid at every service because that's where heavy towing shows up first.
What oil goes in a RAM 3500?
Premium Penrite oil to the 6.7 Cummins' full capacity — roughly 12 litres — with OEM filtration. Grade is matched to the truck and how it's used.

RAM 3500 servicing near you

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