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24-Hour Rush Repair
Pump bench · Fontana, CA
Viking Pump Repair in Fontana
Viking pumps — the internal gear pumps that move fuel oil, lube oil, asphalt, resins and process fluids all over industry — earn their keep on viscous work centrifugal pumps cannot do. Our Fontana shop rebuilds Viking pumps in-house: teardown, measurement of rotor, idler, crescent and case wear, renewal of bushings, shafts and seals, and clearances set back to specification so the pump moves its rated volume without slipping it internally.
Pump bench · Fontana, CA
Internal gear pumps, rebuilt to clearance
An internal gear pump loses capacity quietly: wear at the idler pin, rotor tips and case faces lets fluid slip from discharge back to suction, and output fades long before anything leaks outside. We measure those clearances at teardown and quote from them — faces restored, worn rotors and idlers repaired or manufactured, bushings and shafts renewed, and the pump reassembled with the clearances its duty calls for. Seal and packing work is matched to the fluid the pump actually handles, from clean lube oil to hot asphalt service.
Brands we serviceVikingGouldsBlackmerWaukeshaGracoTuthillKinney
Viking Pump Repair in Fontana · Fontana, CA
Viking internal gear pump repair at LA Trucks and Tractors in Fontana
Same pump, same piping, renewed internals
A Viking pump is flanged, coupled and piped into a system built around its ports and rotation; rebuilding the pump you own puts that exact configuration back in service instead of re-plumbing around a substitute. Regular hours are Monday–Friday 6 AM–5 PM, and the rush line runs 24 hours a day, every day of the year — a transfer pump down is usually a plant down. Quotes are free, pick-up and delivery are free, and you talk directly with John Clark.
- Viking internal gear pump teardown and rebuild
- Rotor, idler and crescent wear restoration
- Bushing, shaft and seal renewal
- Clearance setting to specification
- Fuel, lube, asphalt and process-fluid service
Our 8-step repair process
A clear path from the first call to a tested component or machine returned to work.
Inspection
Disassemble and evaluate the complete failure.
Photos & video
Document condition and findings for a clear repair conversation.
Repair quote
Define the recommended work and quote before proceeding.
Approval
Confirm scope, urgency and the practical path forward.
Manufacturing
Machine, weld, rebuild or reverse engineer required components.
Testing
Verify operation and workmanship before release.
Shipment
Return the completed component or equipment to service.
Frequently asked questions
My Viking pump runs but barely moves fluid. What is wrong?
That is the classic internal-wear pattern: fluid slipping past worn rotor, idler and case clearances from the pressure side back to suction. We measure the clearances at teardown and restore or renew the parts that are out of spec.
Can you rebuild a Viking pump used on hot asphalt?
Yes — high-temperature service is part of the job. Seals, bushings and clearances are selected for the temperature and fluid the pump actually works in.
Related services
Emergency breakdown? Call the 24-hour rush line.
(949) 400-2937Schedule service or open a repair order
Request a service call.
Include the make, model, symptoms, location, urgency and preferred service time. Your details open in a text to John so you can review them before sending.