Reman Cummins 4B 4BT 3.9L B Series Diesel Long Block Engine (Storm Block)

SKU: RP1334RS
tag Brand: RF Engine RF Engine in-house reman
flux-capacitor Condition: Remanufactured
shuffle Cross-References: 1172, 1173, 1201, 1202, 1259, 1260, 1268, 1277, 1278, 1287, 1312, 1508, 1509, 1520, 1521, 1525, 1526, 1631, 1659, 1839, 1932, 1940, 1941, 1963, 1965, 1966, 1967, 2001, 2021, 2064, 2109, 2142, 2144, 2148, 2149, 2195, 2246, 2248, 2264, 2293, 2302, 2304, 2340, 2351, 2359, 2361, 2374, 2377, 2396, 2414, 2456, 2457, 2478, 2486, 2487, 2489, 2490, 2528, 2566, 2567, 2568, 2599, 2600, 2601, 2623, 2672, 2673, 2675, 2808, 2857, 2881, 591, 592, 593, 594, 595, 646, 681, 690, 696, 710, 711, 721, 725, 727, 730, 741, 762, 763, 767, 817, 8239, 826, 8275, 843, 8534, 857, 858, 8711, CM4BEL-ASEN, CM4BEL-PSEN, CM4BEL-RSEN, CPLs 1522, RP1334RS
tractor Fits Equipment
Case & Case-IH 480E Case & Case-IH 480E LL Case & Case-IH 480F Case & Case-IH 480F LL
engine Fits Engines
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Piston Marked 6208, 6209, 6221, 6223 Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816
$4,75000
award-simple Best Price Promise!
money-bill-transfer +$75000 Core Charge*
*See Item Specifics for core return criteria.
box-check In Stock (99+)
Qty:
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memo-circle-info Details

flux-capacitor Remanufactured replacement long block.

box-open-full Includes rotation assembly (block, crank, rods, & pistons), cylinder head with rocker arm assemblies & valve covers, camshaft with lifters & pushrods, oil pump, oil pick-up tube, oil pan, water pump, front gear housing, and tin.

recycle Installer re-uses injection pump gear and fuel system, starter, alternator, flywheel, intake and exhaust manifolds, turbocharger (where applicable), hydraulic or accessory drive pump, and all other external components.

triangle-exclamation This has what is called a "STORM" or "STRESS" style cylinder block which is an updated casting with thicker webbings as well as a cast embossment with a threaded port next to the oil filter head that replaces the large freeze/expansion plug present on earlier models.

Cummins Stress Block

tractor Fitment Guide

excavator Backhoes (13)
Case & Case-IH 480E
Case & Case-IH 480E LL
Case & Case-IH 480F
Case & Case-IH 480F LL
Case & Case-IH 570LXT
Case & Case-IH 580K
Case & Case-IH 580L
Case & Case-IH 580SE
Case & Case-IH 580SK
Case & Case-IH 580SL
Case & Case-IH 590 Turbo CK
Case & Case-IH 590SL
Case & Case-IH 590SL Series 2
bulldozer Crawlers (7)
Case & Case-IH 450C
Case & Case-IH 455C
Case & Case-IH 550
Case & Case-IH 550E
Case & Case-IH 550G
Case & Case-IH 650
Case & Case-IH 650G
excavator Excavators (5)
Case & Case-IH 688
Case & Case-IH 9010
Case & Case-IH 9010B
Case & Case-IH 9020
Case & Case-IH 9020B
forklift Forklifts (6)
Case & Case-IH 584E
Case & Case-IH 585E
Case & Case-IH 585G
Case & Case-IH 586E
Case & Case-IH 586G
Case & Case-IH 588G
engine Power Units (5)
Case & Case-IH 4390
Case & Case-IH 4390T
Case & Case-IH 4391
Case & Case-IH 4391T
Case & Case-IH 4391TA
bulldozer Skid Loaders (9)
Case & Case-IH 1840
Case & Case-IH 1845C
Case & Case-IH 40XT
Case & Case-IH 60XT
Case & Case-IH 70XT
Case & Case-IH 75XT
Case & Case-IH 85XT
Case & Case-IH 90XT
Case & Case-IH 95XT
forklift Telescopic Handlers (3)
Case & Case-IH 686G
Case & Case-IH 686GXR
Case & Case-IH 688G
tractor Tractors (9)
Allis Chalmers 8745
Allis Chalmers 8765
Case & Case-IH 5120
Case & Case-IH 5220
Case & Case-IH 660
Case & Case-IH 760
Versatile 276V
White 6410
White 6510
excavator Trenchers (1)
Case & Case-IH 860
bulldozer Wheel Loaders (1)
Case & Case-IH W11B
wheat-awn Windrowers (8)
Case & Case-IH 6000
Case & Case-IH 6500
Case & Case-IH 8820
Case & Case-IH 8830
Case & Case-IH 8840
Case & Case-IH 8860
Case & Case-IH 8860HP
Case & Case-IH 8870
engine Engines (118)
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Piston Marked 6208, 6209, 6221, 6223 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Piston Marked 6208, 6209, 6221, 6223 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Machine-split Con Rods, 14mm Top Ring Land, Piston Marked 9041, 9042, 9043, 9044, 9045 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Piston Marked 6208, 6209, 6221, 6223 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline pump, Fracture-split Con Rod, Piston Marked 0187, 0188, 0189 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline pump, Machine-split Con Rods, Piston Marked 0187, 0188, 0189 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Long Piston Pin, Piston Marked 1880, 1881, 1882 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Piston Marked 6208, 6209, 6221, 6223 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Machine-split Con Rods, 10mm Top Ring Land, Piston Marked 6631, 6632, 6633, 6634, 6635 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Long Piston Pin, Piston Marked 1880, 1881, 1882 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Piston Marked 6208, 6209, 6221, 6223 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Machine-split Con Rods, 14mm Top Ring Land, Piston Marked 9041, 9042, 9043, 9044, 9045 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Machine-split Con Rods, 14mm Top Ring Land, Piston Marked 9041, 9042, 9043, 9044, 9045 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline pump, Fracture-split Con Rod, Piston Marked 0187, 0188, 0189 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline pump, Machine-split Con Rods, Piston Marked 0187, 0188, 0189 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Machine-split Con Rods, 10mm Top Ring Land, Piston Marked 6631, 6632, 6633, 6634, 6635 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BTA 3.9L | Piston Marked 8673, 8674, 8675, Machine-split Con Rod 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4BTA 3.9L | Piston Marked 8673, 8674, 8675, Machine-split Con Rod 4-cyl • Diesel
Cummins 4BTA 3.9L | Piston Marked 8673, 8674, 8675, Machine-split Con Rod 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Machine-split Con Rods, 10mm Top Ring Land, Piston Marked 6631, 6632, 6633, 6634, 6635 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Aftercooled, Non-emission Certified, Fracture-split Con Rod, Long Piston Pin, Piston Marked 6990, 6991, 6992 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Aftercooled, Non-emission Certified, Machine-split Con Rods, Long Piston Pin, Piston Marked 6990, 6991, 6992 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Aftercooled, Non-emission Certified, Fracture-split Con Rod, Long Piston Pin, Piston Marked 6990, 6991, 6992 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Aftercooled, Non-emission Certified, Machine-split Con Rods, Long Piston Pin, Piston Marked 6990, 6991, 6992 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline pump, Fracture-split Con Rod, Piston Marked 0187, 0188, 0189 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline pump, Machine-split Con Rods, Piston Marked 0187, 0188, 0189 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Emission Certified, Long Piston Pin, Piston Marked 2514, 4975, 4976, 3581, 3582 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Machine-split Con Rods, 10mm Top Ring Land, Piston Marked 6631, 6632, 6633, 6634, 6635 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline pump, Fracture-split Con Rod, Piston Marked 0187, 0188, 0189 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline pump, Machine-split Con Rods, Piston Marked 0187, 0188, 0189 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Emission Certified, Long Piston Pin, Piston Marked 2514, 4975, 4976, 3581, 3582 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Emission Certified, Long Piston Pin, Piston Marked 2514, 4975, 4976, 3581, 3582 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4BTA 3.9L | Piston Marked 8673, 8674, 8675, Machine-split Con Rod 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BTA 3.9L | Piston Marked 8673, 8674, 8675, Machine-split Con Rod 4-cyl • Diesel
Cummins 4BTA 3.9L | Piston Marked 8673, 8674, 8675, Machine-split Con Rod 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Emission Certified, Long Piston Pin, Piston Marked 2514, 4975, 4976, 3581, 3582 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Emission Certified, Long Piston Pin, Piston Marked 2514, 4975, 4976, 3581, 3582 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Emission Certified, Long Piston Pin, Piston Marked 4985-4989 or 5441-5445 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Emission Certified, Long Piston Pin, Piston Marked 4985-4989 or 5441-5445 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Emission Certified, Long Piston Pin, Piston Marked 4985-4989 or 5441-5445 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Emission Certified, Long Piston Pin, Piston Marked 4985-4989 or 5441-5445 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Emission Certified, Long Piston Pin, Piston Marked 4985-4989 or 5441-5445 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Emission Certified, Long Piston Pin, Piston Marked 2514, 4975, 4976, 3581, 3582 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Emission Certified, Long Piston Pin, Piston Marked 4985-4989 or 5441-5445 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Emission Certified, Long Piston Pin, Piston Marked 4985-4989 or 5441-5445 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline pump, Fracture-split Con Rod, Piston Marked 0187, 0188, 0189 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline pump, Machine-split Con Rods, Piston Marked 0187, 0188, 0189 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline pump, Fracture-split Con Rod, Piston Marked 0187, 0188, 0189 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline pump, Machine-split Con Rods, Piston Marked 0187, 0188, 0189 4-cyl • Diesel
Cummins 4BT 3.9L, 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Inline Injection Pump, Machine-split Con Rods, Piston Marked 8673, 8674, 8675 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Piston Marked 6208, 6209, 6221, 6223 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Low Horsepower, 17.2:1 Compression Ratio, Piston Marked 3579, 3655, 3656 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, CPL 593, 767, 18.5:1 Compression Ratio, Piston Marked 3582, 8035, 8036 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Low Horsepower, 17.2:1 Compression Ratio, Piston Marked 3579, 3655, 3656 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Piston Marked 6208, 6209, 6221, 6223 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Piston Marked 6208, 6209, 6221, 6223 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Piston Marked 6208, 6209, 6221, 6223 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, CPL 593, 767, 18.5:1 Compression Ratio, Piston Marked 3582, 8035, 8036 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BTA 3.9L | Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Aftercooled, Non-emission Certified, Fracture-split Con Rod, Long Piston Pin, Piston Marked 6990, 6991, 6992 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Aftercooled, Non-emission Certified, Machine-split Con Rods, Long Piston Pin, Piston Marked 6990, 6991, 6992 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Piston Marked 6208, 6209, 6221, 6223 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Aftercooled, Non-emission Certified, Fracture-split Con Rod, Long Piston Pin, Piston Marked 6990, 6991, 6992 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Aftercooled, Non-emission Certified, Fracture-split Con Rod, Long Piston Pin, Piston Marked 6990, 6991, 6992 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Piston Marked 6208, 6209, 6221, 6223 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Non-emission Certified, Piston Marked 7156, 7157, 7158 4-cyl • Diesel
Cummins 4BT 3.9L | Turbocharged, Non-emission Certified, Piston Marked 7163, 8815, 8816 4-cyl • Diesel
Cummins 4B 3.9L | Natural Aspirated, Non-emission Certified, Piston Marked 6208, 6209, 6221, 6223 4-cyl • Diesel
Cummins 4BTA 3.9L | Turbocharged, Aftercooled, Emission Certified, Machine-split Con Rods, 14mm Top Ring Land, Piston Marked 9041, 9042, 9043, 9044, 9045 4-cyl • Diesel
exclamation While every effort has been made to ensure the accuracy of the fitment information listed above, it is ultimately the responsibility of the installing mechanic to perform a side-by-side comparison of the replacement part with the original to verify proper fit before installation. RF Engine is not liable for labor or consequential damages resulting from incorrect application.

shield-check Warranty Information

Cummins B Series Long Block Warranty

Your new Cummins B Series long block comes with a 6-month warranty covering defects in materials and workmanship. We're committed to ensuring you receive a quality product that performs as expected.


What's Covered

  • Coverage Period: 6 months from date of purchase
  • Parts Protection: Replacement parts for any component of the long block itself found to be defective in materials or workmanship
  • Our Promise: If a covered defect occurs, we'll provide replacement parts at no charge to get you back up and running

What's Not Covered

This warranty covers replacement parts only. The following costs are the customer's responsibility:

  • Labor: Installation, removal, diagnosis, or any other labor costs
  • Fluids & Consumables: Engine oil, coolant, filters, gaskets, or any other consumables
  • Shipping: Both inbound shipping of defective parts and outbound shipping of replacement parts
  • Incidental Expenses: Towing, equipment rental, downtime, or any other indirect costs

How It Works

If you experience an issue covered under warranty:

  • Contact us immediately with your order number and description of the problem
  • We'll work with you to diagnose the issue and determine if it's warranty-related
  • For valid claims, we'll ship replacement parts as quickly as possible
  • Defective parts must be returned for inspection (return shipping at customer's expense)

Important Notes

  • Professional Installation Required: We strongly recommend installation by a qualified diesel technician to ensure proper break-in and operation
  • Keep Your Records: Retain your invoice and any service records — you'll need them for warranty claims
  • Questions?: We're here to help. If you're unsure about coverage or need assistance, please contact us

This warranty gives you specific legal rights, and you may have other rights which vary from state to state.

Reman Cummins 4B 4BT 3.9L B Series Diesel Long Block Engine (Non-storm Block) Reman Cummins 4B 4BT 3.9L B Series Diesel Long Block Engine (Non-storm Block) SKU: RP1334RN $4,750.00 New Cummins 4B 4BT 3.9L B Series Diesel Long Block Engine New Cummins 4B 4BT 3.9L B Series Diesel Long Block Engine SKU: RP1334 $4,995.00 New Cummins 4B 4BT 3.9L B Series Diesel Short Block Engine New Cummins 4B 4BT 3.9L B Series Diesel Short Block Engine SKU: RP1334SHORT $3,795.00
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