Diesel Engine Repair & Overhauls
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Diesel Engine Repair & Overhauls

Heavy-Duty Commercial Diesel Engine Repair & Diagnostics – Manteca, CA

Imperial Truck & Trailer Repair in Manteca, CA, provides comprehensive diesel engine diagnostics, cylinder head overhauls, and in-frame rebuilds for Cummins, Detroit, PACCAR, and Caterpillar platforms. Our ASE-certified technicians utilize dealer-level software and a 10-bay facility to ensure minimal downtime and maximum reliability for all commercial fleet operators.

Complete Diesel Engine Repair & Overhauls in Manteca, CA

Our master diesel technicians deliver comprehensive engine diagnostics, cylinder head overhauls, in-frame rebuilds, and complete fuel injection system triage for all major commercial heavy-duty platforms including Cummins, Detroit Diesel, PACCAR, and Caterpillar. Utilizing advanced OEM dealer-level software and high-precision torque tooling, we isolate loss of power, abnormal exhaust smoke, oil consumption, and turbocharger failures with pinpoint accuracy. From EGR valve cleaning and DPF aftertreatment maintenance to full cylinder head replacements, our 10-bay Manteca facility ensures freight carriers and owner-operators experience minimal downtime, optimal fuel economy, and maximum road-ready reliability.

Diesel Engine Repair & Overhauls

What This Service Covers

Cummins, Detroit & PACCAR
Turbo & Fuel Injectors
EGR & Aftertreatment Triage

The Imperial Fleet Advantage

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Fast Bay Turnaround

10 full-length commercial drive-in bays minimizing carrier downtime.

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ASE-Certified Techs

Over a decade of heavy-duty diesel experience on Cummins, Detroit & PACCAR.

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In-Stock OEM Parts

Immediate warehouse access to filters, brake drums, valves, and turbo kits.

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Direct Fleet Billing

Accepts Comdata, EFS, Fleet One, and all major commercial fleet accounts.

Precision Execution

Our 4-Step Service Protocol

01Diagnostic Intake & Scan

OEM dealer-level scanning to pinpoint root causes, sensor anomalies, and fault codes.

02Transparent Fleet Quote

Itemized estimate and immediate parts allocation from our on-site Manteca warehouse depot.

03Master Mechanic Repair

Precision overhaul executed using OEM torque specs, certified replacement parts, and heavy tooling.

04Quality Check & Release

Secondary torque verification, sensor recalibration, and road-ready safety signoff.

Complete Fleet Care

Other Heavy-Duty Services

View All 12 Services→
Computer Diagnostics & ECM Scanning

Computer Diagnostics & ECM Scanning

Dealer-Level Software
Live Sensor Scans
ECM / ECU Calibration
Brakes & Pneumatic Air Systems

Brakes & Pneumatic Air Systems

Air Compressor & Dryers
S-Cam & Drum Kits
ABS Modulation Triage
Commercial Tires & Wheel Mounting

Commercial Tires & Wheel Mounting

Steer & Drive Tires
Pneumatic Torque Check
Roadside Tire Service
FIND THE SHOP & ROADSIDE RESCUE

Find the shop

2142 W Yosemite Ave, Manteca, CA 95337. Shop bays are open Monday to Friday, 8 AM to 6 PM, and Saturday, 8 AM to 5 PM. Roadside rescue never closes. Call (209) 239-8111 before the next mile, or request an estimate online. We'll take it from there.

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