Tri-State Diesel Repair

Truck repair shop

4.2 4.2 from 28 reviews

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Tri-State Diesel Repair is a heavy duty and fleet repair shop in Belmont, NH. It holds a 4.2 star rating from 28 customer reviews. Read the reviews and hours below, or call (603) 819-5359.

Photo from tristatedieselrepair.com, this business's own website.

Services Offered

Air conditioningAuto engine diagnosticBrakesElectricalExhaustOil changeSteering & suspension repairTiresTransmissionBrake RepairBus RepairBus Repair ServicesCoolant System RepairCylinder Rebuild & RepairDiagnostics & Electrical RepairDiesel Repair

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Address147 Mile Hill Rd, Belmont, NH 03220

MapOpen the map →

Phone(603) 819-5359

Websitehttps://www.tristatedieselrepair.com/

Also onGoogle Facebook

Good to knowComes to youOil changes

PaymentsCredit cards, Debit cards

Hours

See the full week

Monday	8 AM to 5 PM
Tuesday	8 AM to 5 PM
Wednesday	8 AM to 5 PM
Thursday	8 AM to 5 PM
Friday	8 AM to 5 PM
Saturday	8 AM to 5 PM
Sunday	8 AM to 5 PM

Tri-State Diesel Repair Reviews & Ratings

Customer reviews 4.2 4.2 · 28 reviewschecked 2026-09-20

5 star22

4 star0

3 star0

2 star2

1 star4

What Customers Mention

The topics that come up most in its Google reviews, and how many reviews raise each one.

Tires 3Diesel repair 2Dump truck 2Easy to work with 2Mobile repair 2Oil change 2Technician 2Tire installation 2

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What Car Repairs Cost in Belmont, NH

Typical independent shop prices at New Hampshire labor rates, parts and labor, for a midsize car. Each guide shows the price for your vehicle and what to ask before you pay. See all 91 repair cost guides.

Fuel filter replacement cost $55 to $210 Brake fluid flush cost $70 to $175 Differential fluid change cost $70 to $230 Coolant flush cost $90 to $215 Wheel bearing replacement cost $175 to $650 Transmission fluid change cost $125 to $370