785C Remanufactured for CAT 3512 Engine for Sale

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The 785C Caterpillar 3512 engine is a crucial part of mining, agricultural, forestry, civil, and construction due to its ability to power CAT haul trucks capable of carrying mass amounts and diverse types of material.

Our remanufactured 785C CAT 3512 engines fit the APX haul truck with arrangement 175-5285.

Available on backorder
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Our 785C CAT 3512 rebuilt engines are remanufactured to the highest standards. We remanufacture in-house to what is known as Bare Metal Remanufacturing. We fully disassemble every part of the engine down to a bare cylinder block. All paint is removed for inspection purposes. This allows us to find any casting defects or cracks.

Complete CAT 3512 Engine Overhaul

All parts are cleaned and inspected. Cylinder blocks are machined. Crankshafts are measured and polished. For every engine rebuild, we replace all:

  • Water pump and regulators
  • Regulating springs and valves
  • Oil and fuel filters
  • Sensors, wiring harnesses and computer
  • Starter and alternator
  • Wear parts
  • Fuel pump and injectors
  • Oil pump
  • Camshafts
  • Turbochargers
  • Piston and liner kits
  • Cylinder Heads
  • Belts, hoses, clips, brackets, fittings and clamps
  • Transmission, brake, hydraulic and coolers
  • Gaskets, seals, and o-rings
  • Exhaust hardware
  • Oil cooler
  • Bearings, cups, and plugs
  • Rocker shafts and rockers

Genuine Caterpillar Parts for Your Caterpillar 785C CAT 3512 Engine Replacement

At Independent Rebuild Specialist, we use genuine Caterpillar parts to achieve premium quality rivaling new CAT 3512 engines fresh off the factory floor.

Painted, Dyno Tested and Dressed for Shipping

All of our rebuilt CAT engines are painted at our facility and then Dyno tested. Many of our engine Dyno tests can be viewed on our YouTube Channel.

All of our engines are shrink wrapped and secured to a customized steel skid for stability and protection from weather elements during storage and shipping.

Our CAT Engine Rebuilds are Guaranteed…AND Fast!

We are not a middleman and stand by our work with a 100% warranty to assure our 3512 engines can be dropped-in quickly for fast and reliable engine replacement at your location.

Our typical turnaround time for remanufacturing a 785C CAT 3512 is as little as one week and we ship to most locations around the world.

Get a No Obligation Quote

We reply to all quote requests usually within the hour, during normal U.S. business hours, but always within 24 hours. Call us at 303-659-4652 with any questions about our 785C CAT 3512 rebuilt engines for CAT trucks, dozers, and drills or use our Quote Request form to see if our CAT replacement engines are a possible fit for you.