Peterbilt

Peterbilt trucks combine comfort, style, and performance—and they’re built to work. At Britt’s Diesel, we keep your 389s, 579s, and vocational rigs running strong with brand-aware diagnostics, quality parts, and clear communication. Whether you’re hauling, running regional routes, or working job sites, our goal is simple: less downtime, more uptime.

Diagnostics & Common Repairs

We don’t guess and swap. We test first—live-data logging, boost/pressure checks, smoke testing, electrical integrity (grounds, voltage drop), and aftertreatment verification—to isolate the root cause and fix it right.

Typical issues we solve:

• Low power, derates, frequent regens, EGR/DPF/DEF/SCR faults
• Turbo/charge-air leaks, cooling and HVAC performance problems
• Electrical/CAN-bus gremlins, intermittent no-starts, sensor drift
• Brake wear, ABS faults, steering/suspension concerns
• Driveline vibration, u-joints, carrier bearings, wheel-end leaks

Models We Service

Highway and vocational Peterbilts including 579, 389, and specialty builds—powered by PACCAR (MX-13/MX-11) or Cummins platforms. We coordinate engine, transmission, and chassis work under one plan so you’re not bouncing between shops.

Major Repairs: Engines & Transmissions

Big repairs demand a measured plan, correct parts, and meticulous validation. We scope, quote, and execute major work to get your Peterbilt back on grade—fast and right.

Engine Rebuilds, Overhauls & Replacements

• Test-first confirmation: compression/leak-down, injector balance, oil analysis, cooling/boost integrity, aftertreatment condition.
• In-frame or out-of-frame overhauls with heads, liners/pistons, bearings, oil pump, timing components, gaskets/seals, and overhead set to spec.
• Aftertreatment integration: DPF cleaning/replacement, EGR/DEF checks, and sensor calibration so a fresh build isn’t dragged into regens/derates.
• Replacement options: approved reman long blocks/engines when economics or downtime demand it—installed with documentation and break-in guidance.
• Final validation: hot/cold starts, no-load/load road tests, leak/boost checks, and data logs.

Transmission Rebuilds, Repair & Replacements

• Automated-manual & manual gearboxes: diagnostics for actuators, clutches, solenoids, forks, TCM calibration/updates; synchros/bearings/seals for manuals.
• Clutch & flywheel service plus driveline refresh (u-joints, carrier bearings, seals) to protect new or rebuilt units.
• Rebuilds or reman swaps with adaptations and spec road test so shifting is smooth and temperatures/pressures hold under load.

PM & Fleets

Downtime is expensive—PM keeps you ahead of it. We tailor intervals to route, grade, and climate.

PM includes: oil & filters, fuel filtration, coolant testing/exchange, transmission/axle/PTO fluids, brake/air-system checks, tire & wheel-end inspections, battery/charging tests, and torque/mount audits. Fleet customers get priority scheduling, VIN-level history, PM calendars, and proactive advisories to cut cost-per-mile.

BIT/DOT Readiness

We prepare Peterbilts to pass the first time: lighting, brakes, tires, leaks, steering/suspension, and records. If we find an issue, we correct it quickly and document the repair for audits.

Why Britt’s Diesel for Your Peterbilt?

• OEM-grade diagnostics for PACCAR/Cummins—no guesswork.
• In-house majors: engine & trans overhauls, driveline, alignment.
• Transparent pricing & updates—clear estimates, no surprises.
• Fleet-ready: PM logs, BIT/DOT prep.

Rely on a local team that knows Peterbilt. Book service with Britt’s Diesel and keep your truck earning.