Mobile Fleet Maintenance Programs | Trailer PMs & BITs | Northern CA | TruMac Fleet Services
PREVENTIVE MAINTENANCE PROGRAMS

Mobile Fleet Trailer Maintenance Programs (PM)
Northern California

Scheduled on-site lube, brake adjustments, and 90-day compliance checks for logistics yards in Sacramento, Stockton, Tracy, Modesto, Fairfield, Dixon, Roseville, Elk Grove, Lathrop, Manteca, West Sacramento & Woodland.

Stop Paying for Roadside Rescues. Our yard-based PM program catches 80% of failures—air leaks, dry bearings, and worn brakes—before they leave your gate.
Sacramento 95826 Stockton 95206 Fairfield 95688 West Sacramento 95691 Tracy 95330 Roseville 95652 Hayward 94545 Modesto 95391 Dixon Elk Grove Lathrop Manteca Woodland
Aerial view of TruMac mobile fleet maintenance truck performing scheduled trailer PMs at a distribution center in Stockton 95206
TruMac mobile maintenance unit at a Northern California distribution yard performing scheduled PMs
Mechanic greasing trailer landing gear and checking brake stroke during 90-day fleet maintenance service in Sacramento
Landing gear lubrication and brake certification during 90-day BIT inspection cycle
RARE SPECIALTY SERVICE

Mobile Kingpin Replacement

One of the few mobile services in Northern California performing kingpin replacement at your yard. This rare specialty service keeps your trailers in service without costly towing to a shop. Photos available upon request.

Learn About Kingpin Service →

The TruMac PM Checklist

Every service is documented with VMRS codes and uploaded to your fleet management system

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Lube & Grease

Landing gear legs, slack adjusters, wheel hubs, and kingpin plates. We use heavy-duty fleet-grade grease, not automotive multi-purpose.

See Landing Gear Project →

Brake Certification

Measure stroke, check lining thickness, adjust slack adjusters (30/30 standard). Full BIT prep for California 90-day compliance.

90-Day BIT Service →
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Lighting & Electrical

7-way plug test, marker lights, ABS sensor diagnostics. We catch intermittent failures before DOT inspections do.

Electrical Repair Services →
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Tires (Air Only)

Inflation check and tread depth recording. No tire changes—just pressure verification to keep you rolling safely.

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90-Day BIT Prep

We align every PM with California's 90-day BIT inspection requirements. Never miss a compliance window again.

BIT Inspection Details →
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Dry Van Specifics

Roll-up door cables, roof leak inspection, floor decking integrity checks. We catch structural issues early.

Door & Gate Repairs →
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Hitch & Coupler Systems

Pintle hooks, couplers, lunette rings, and fifth wheel connection points. Critical for safe multi-trailer operations.

Hitch Services →
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Air System Diagnostics

Air bag suspension, brake lines, glad hands, and pressure testing. Stop chasing phantom air leaks.

Air System Guide →

Outsourced vs. In-House Maintenance

Why fleet managers choose TruMac's mobile PM program over hiring in-house

Feature In-House Mechanic TruMac Mobile PM Program
Cost Structure Fixed Overhead (Salary + Benefits) Variable (Pay Per Unit)
Tooling Investment You Buy & Maintain Tools We Bring All Tools & Equipment
Scalability Hard to Scale (Hiring Delays) We Add More Trucks Instantly
Shop Space Required Needs Dedicated Bay(s) We Work in Your Yard
Downtime Trailers Travel to Shop Zero Travel Time
VMRS Coding Manual Entry Required Standard on Every Invoice
Specialization General Mechanic Skillset Fleet Trailer Specialists Only
Kingpin Replacement Must Outsource or Tow We Do It On-Site

Dispatching Scheduled PM Units

To major logistics hubs across Northern California's freight corridors

West Sacramento

ZIP: 95691

The Port & Industrial Blvd Corridor. Deep Water Ship Channel distribution centers and warehouse terminals.

Stockton

ZIP: 95206

Arch Road, Airport Way, and BNSF Intermodal. One of Northern California's densest logistics zones.

Tracy / Lathrop / Manteca

ZIP: 95330

The I-5 & I-205 Distribution Triangle. Gateway to the Central Valley freight network.

Roseville

ZIP: 95652

McClellan Park & Foothills Industrial. Union Pacific rail yard and surrounding distribution centers.

Fairfield / Vacaville / Dixon

ZIP: 95688

The I-80 Logistics Corridor. Strategic position between Bay Area and Sacramento Valley.

Sacramento / Elk Grove

ZIP: 95826

Power Inn Road, Depot Park, and Florin Perkins industrial zones. Our home base for rapid response.

Modesto

ZIP: 95391

Central Valley's logistics hub. Highway 99 corridor distribution centers and agricultural freight terminals.

Woodland

ZIP: 95776

Yolo County's agricultural and distribution center. I-5 corridor access to Northern California markets.

Hayward / East Bay

ZIP: 94545

East Bay industrial corridor. Port of Oakland access and I-880 logistics zone.

Fleet Maintenance Program FAQs

What managers need to know about TruMac PM contracts

How often should fleet trailers have a PM?

In California, we recommend aligning PMs with the 90-Day BIT Inspection cycle. This ensures you never miss a compliance window while keeping equipment greased and road-ready. For high-utilization fleets (over 1,000 miles/week per unit), monthly lubrication and quarterly brake adjustments prevent costly roadside failures.

Do you use VMRS codes for maintenance records?

Yes. All TruMac invoices use standard VMRS coding, making it easy to upload data into your fleet management software (TMT, Samsara, Fleetio, Geotab, etc.). This ensures compliance tracking and accurate maintenance histories without manual data entry.

What is included in a dry van PM?

Our dry van PM includes: lube and grease (landing gear, slack adjusters, wheel hubs), brake certification (stroke measurement, lining thickness, slack adjustment to 30/30 standard), lighting and electrical (7-way plug test, marker lights, ABS diagnostics), tire inflation and tread depth recording, plus specific checks for roll-up door cables, roof leaks, and floor decking integrity.

What's the difference between outsourced and in-house fleet maintenance?

Outsourced mobile fleet maintenance with TruMac eliminates fixed overhead (mechanic salaries, benefits, insurance), removes the need for shop space and tooling investments, and scales easily as your fleet grows or contracts. We perform all PMs at your yard, eliminating equipment downtime from shop visits and allowing your team to focus on core logistics operations.

Do you service fleets at the Port of West Sacramento?

Yes. We dispatch scheduled PM units to West Sacramento 95691 (Port and Industrial Blvd corridor), Stockton 95206 (Arch Road and BNSF Intermodal), Tracy/Lathrop 95330 (I-5/I-205 triangle), Roseville 95652 (McClellan Park), and the entire I-80 corridor including Fairfield, Dixon, and Vacaville. Contract fleets receive guaranteed service windows.

Can you align PMs with our fleet management software schedule?

Absolutely. We integrate with your existing maintenance schedule in TMT, Samsara, Fleetio, Geotab, or any system using VMRS codes. We can trigger service based on mileage, days in service, or your custom PM intervals. Your system sends the alert, we dispatch to your yard.

Do you do mobile kingpin replacement?

Yes. TruMac is one of the few mobile services in Northern California that performs kingpin replacement at your yard. This rare specialty service eliminates expensive towing costs and keeps your trailers in service. We bring all necessary equipment including welding and pressing tools. Contact us for photos of recent kingpin projects.

What size fleets do you work with?

We specialize in fleet yards operating 100+ commercial trailers. Our contract programs are designed for logistics operations in Sacramento, Stockton, Modesto, Tracy, Fairfield, and surrounding Northern California distribution hubs. We provide parts and maintenance programs tailored to your fleet size and utilization patterns.

Do you provide roadside service on highways?

No. TruMac focuses exclusively on scheduled yard-based maintenance and fleet yard emergency service. We do not provide freeway or roadside breakdown service. This specialization allows us to deliver faster response times and better quality work in controlled fleet environments.

What areas do you cover in Northern California?

We service fleet yards in Sacramento (95826), Stockton (95206), Fairfield (95688), West Sacramento (95691), Tracy (95330), Roseville (95652), Hayward (94545), Modesto (95391), plus Dixon, Elk Grove, Lathrop, Manteca, Vacaville, and Woodland. Our mobile units cover the entire I-5, I-80, and Highway 99 logistics corridors.

Start a Fleet PM Program

Stop chasing breakdowns. Switch to scheduled preventive maintenance and reduce your emergency repair costs by 80%.

Contract programs available for fleets operating 100+ commercial trailers