Match the installation
Include photos of the engine mounts, flywheel or drive end, accessories and cooling arrangement. Tell us which parts stay with the pump and which need to be supplied with the engine.
Industrial engines · Pump power
Diesel & Natural-Gas Pump Engine Builds
Keep the engine and the pump application together. Big 3 builds diesel and natural-gas engines for pump service, starting with the existing assembly, drive arrangement and the work the unit performs.
East Texas shop · Nationwide freight by quote · Visits by appointment
Plan for the actual duty
Describe the material being pumped, normal operating schedule and site conditions. We use the application details to scope the build; pump sizing, piping, controls and site installation need their own confirmed responsibilities.
A useful quote starts here
Send the engine tag and equipment details.
Engine model/serial number and pump or skid identification.
Fuel type, rated RPM and power from the equipment records or tags.
Coupling or drive details, cooling arrangement, operating hours and failure diagnosis.
Compare the whole job.
Assembly & scope
Confirm the machining, internal components, external equipment and test or commissioning responsibilities in writing. Engine work and complete-machine repair are different scopes.
Core & freight
Confirm whether exchange is required and whether a deposit is included or separate. A core must match the purchased engine and be rebuildable to receive credit. Freight and unloading arrangements are confirmed for the order.
Read core requirements →Schedule & warranty
Agree on the build or supply schedule and the written coverage for your exact order. Inspection, parts availability and confirmed scope affect timing. Review the oil, maintenance and warranty requirements before use.
Review warranty information →Questions before you commit
Can I order from the model name alone?
No. The engine tag and equipment tag identify different parts of the application. Include both, along with fuel and operating details.
Is every engine shown ready to ship?
No. A guide describes an inquiry path. Current stock, build acceptance, price and lead time are confirmed for your specific order before payment.
Can you handle a natural-gas engine?
Yes. Big 3 builds natural-gas engines for industrial applications. Send the engine and equipment identification, fuel-system details and operating requirements for a build-specific quote.
Does this include the whole machine or site work?
The engine build is the starting scope. Removal, installation, generator electrical work, pump work, field service and commissioning are included only if specifically agreed in your quote.
Put the next step in motion
Let’s scope your engine.
Have your identifiers and diagnosis ready. We’ll work through the assembly, core, freight and the next step with you.
Brand and equipment names identify applications for inquiry. Big 3 is an independent engine builder; this page does not claim manufacturer affiliation or authorization.