24-Hour Rush RepairCall (949) 400-2937Toll-Free (800) 821-3404Free pick-up & deliveryFree quotes
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24-Hour Rush Repair

Independent Mack service · Fontana, CA

Mack Truck Repair in Fontana

Top Notch Equipment Repair handles Mack Truck Repair in Fontana the way a working shop should — the component or machine is opened, measured and rebuilt in-house, never shipped off and guessed at. Free inspection and quotes, free pick-up and delivery, 24-hour rush support.

Independent Mack service · Fontana, CA

Mack work we do every week

Truck work here covers the whole machine — engine, driveline, chassis, hydraulics and body — diagnosed and repaired by a crew that also machines its own parts. Quotes and inspection are free, pick-up and delivery are free, and the rush line runs 24 hours a day for trucks that earn their keep on the road.

Brands we serviceMack
Vocational service truck in for repair at Top Notch Equipment Repair FontanaMack Truck Repair in Fontana · Fontana, CA

Why Mack owners run to Fontana

Dealer diesel shops book out deep and price like it. Here the standard is the same and the process is transparent: teardown documented with photos and video, worn parts measured and shown to you, a written quote before work begins, and free pick-up and delivery when applicable. Regular hours Monday–Friday, 6 AM–5 PM — and the 24-hour rush line runs every day of the year, because trucks earn nothing parked.

  • MP7 and MP8 engine repair and rebuilds
  • mDRIVE and manual transmission service
  • Differential and gear rebuilding in-house
  • Aftertreatment and derate diagnosis
  • Mixer, dump and refuse PTO hydraulics

Our 8-step repair process

A clear path from the first call to a tested component or machine returned to work.

01

Pick-up

Coordinate free equipment or component pick-up when applicable.

02

Inspection

Disassemble and evaluate the complete failure.

03

Photos & video

Document condition and findings for a clear repair conversation.

04

Repair quote

Define the recommended work and quote before proceeding.

05

Approval

Confirm scope, urgency and the practical path forward.

06

Manufacturing

Machine, weld, rebuild or reverse engineer required components.

07

Testing

Verify operation and workmanship before release.

08

Shipment

Return the completed component or equipment to service.

Frequently asked questions

Are you a Mack dealer?

No — we are an independent repair shop that services Mack trucks. No affiliation is implied.

Do you work on Granite vocational trucks?

Yes — Granite dumps, mixers and vocational Macks are core work, including PTO and hydraulic systems.

Can you rebuild a Mack differential?

Yes — differentials and gears are rebuilt in-house; it is the trade this shop was founded on.

Emergency breakdown? Call the 24-hour rush line.

(949) 400-2937

Schedule service or open a repair order

Request a service call.

Tell us the make, model, symptoms, where the machine sits and how urgent it is. Your details open as a text to the shop, ready for you to review before you send.

Schedule Service / Repair Order