3126 CATERPILLAR® CAT 3126 3V BEJ, BMA, 5GG, DCS DIESEL LONG BLOCK ENGINE

3126 CATERPILLAR® CAT 3126 3V BEJ, BMA, 5GG, DCS DIESEL LONG BLOCK ENGINE

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Core Charge
Engine: $1125.00

Warranty
1 Year / Unlimited Hours

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This Long Block covers Machine and Industrial Engine Serial Numbers(ESN) BMA-BEJ-5GG- DCS and Other Applications with the 2 Piece Steel or the 1 Piece Aluminum Piston.

You will receive the long block, as pictured, along with the new oil pump & the long block gasket set.  You will need to follow the installation instructions found under the documentation tab on our home page.  A copy of the installation instructions (along with various other documents for your review) will be included with the long block shipment. 

PLEASE READ & REVIEW THE INSTALLATION INSTRUCTIONS WITH THE INSTALLER!

Our Remanufactured 3126 3 Valve Caterpillar® Long Blocks are assembled using Interstate McBee, Mahle, Caterpillar® and IPD Diesel Parts.  New Piston Kits, Rod Bearings, Main Bearings, Cam Bearings, Pin Bushings, Long Block Gasket Set, Oil Pump, and several Valve Train Components are replaced.

We do not spray weld cylinder walls back to standard bore.  Some remanufacturers and OEM have moved to this type of repair process, we have not.  We machine the block in 4 axis CNC machines to accept .020 oversized Pistons.

Your Engine Serial Number(ESN) & Arrangement Number are required to make sure we deliver the proper engine for your unique application.

PROPOSITION 65 WARNING:

   WARNING: Crude oil, gasoline, diesel fuel, and other petroleum products can expose you to chemicals including toluene and benzene, which are known to the State of California to cause cancer and birth defects or other reproductive harm.

For more information go to https://www.p65warnings.ca.gov/

 Long Block & Rotating Assembly

Cylinder Head

Valve Train

Low-Pressure Oil Pump

Gasket Set

Front Gear Train Housing

 Gasket Set - To consist of:

Front & Rear Crank Seals & Wear Sleeves - Oil Pan - Intake - Exhaust - Water Pump - Thermostat - Front Cover - Valve Cover - Oil Cooler Gaskets.  Also includes various O-Rings for the Oil, Coolant & Fuel System.

                                           If Your Engine has a Plastic Oil Pan Gasket, It Must be Purchased Separately.

 

  ANY GASKET NOT INCLUDED WITH THE LONG BLOCK  MUST BE PURCHASED SEPARATELY.



 

All engines are blueprinted.  Blueprinting is defined as removing or narrowing the tolerances found in mass production engines. The rod, main, & cam clearances are measured with a dial bore gauges & micrometers. Bearings clearances are set depending on the application (truck, car, marine, performance, etc.). Piston & valve guide clearances are set with dial bore gauges. Cam timing events are measured and adjusted. A specification and build sheet are available for each engine.

We do not weld or repair cracked blocks or heads.  We do not weld damaged crankshaft journals. We do not spray weld any components in the machining process.

Cylinders are bored in  CNC Machining centers (unless they are wet sleeve blocks) & honed in Sunnen CNC cylinder hones with diamond abrasives (OEM technology).

Main bearing saddles are align honed or align bored.  This is part of the blueprint process. We do not try and repair blocks with "spun" main bearings.

Block decks are resurfaced with CBN cutters in CNC Machining centers. This is the latest technology in surfacing cast iron.  We achieve single digit RA figures for MLS head gaskets which is critical. To ensure proper gasket sealing we check all surfaces with a profilometer, a device used to check surface finish to ensure gasket life and efficiency. We do not use head gasket "shims" to correct block height errors.

Crankshafts are heat treated in our thermal convection oven, which is better and easier on the casting than the standard production rebuilder's thermal oven, shot peened to relieve casting stresses, and machined a maximum of .010 on rod & main journals. Our crankshafts are then balanced in a Stewart Warner digital balancer. No welded crankshaft journals! No rear seal "speedie" sleeves, which will leak over time!  Most all production rebuilders do not balance their cranks, rods, & pistons.

Connecting rods are also heat treated, shot peened and machined to OEM specifications. This is part of the blueprinting process. Matched & balanced sets of rods. We do not try to recondition rods with "spun" bearings.

Cylinder heads are remanufactured to exceed OEM specifications in a Rottler or Serdi valve seat machines. Valve guides are replaced & honed in  Sunnen guide hones. Head gasket surfaces are refinished with CBN or PCD cutters, the latest technology in the resurfacing of cast iron and aluminum to ensure a proper gasket seal. Surfaces are then checked with the same profilometer used on block gasket surfaces.

We do not weld or repair cracked or damaged cylinder head castings. We do not "shim" weak valve springs to increase pressure, they are replaced. We do not use bronze valve guide liners like some production rebuilders as they will commonly fail. We replace the valve guide we do not try to repair it.

All assembled long blocks are tested for compression before shipping. Our engine builders are ASE master engine machinist.