The International Harvester Company (IHC) has been building its own proprietary truck engines since the introduction of their first truck in 1907. International tended to use proprietary diesel engines. In the 1970s, IHC built the DVT 573 V-8 diesel of but these were not highly regarded and relatively few were sold. Their DT 466 engine started in 1974 and was very successful.

IHC engines The first IHC "Highwheeler" truck had a very simple air-cooled horizontally opposed two-cylinder engine with a stroke and a bore, and produced around . Displacement was .Crismon, p. 13 In 1915 a new L-head water-cooled inline-four engine appeared.Crismon, p. 27 While International's own engines underwent constant developments, the pace of truck production in the twenties was such that others' engines (from Waukesha, Buda, and Lycoming for instance) had to be installed in some parts of the range.Crismon, p. 60

International Harvester's first in house six-cylinder engines appeared in some of the 1926 S-series trucks, seemingly a response to market pressures rather than to any particular need for such a layout.Crismon, p. 66 In 1928, a new heavy range of trucks (the HS-series) built around a series of engines from Hall-Scott appeared. These engines were used by IHC for some heavy-duty applications until 1935, although their own large engines ( FBD and FEB) had appeared in 1932.Crismon, p. 101 The medium-duty 1930 A-series trucks received the all-new FB-3 six-cylinder engine, with overhead valves and seven main bearings. This was complemented by larger versions of the same engine and was built until late 1940 (as the FBB),Crismon, p. 164 the line-up being expanded downward by the smaller FA-series (later FAB) in 1933.Crismon, p. 107

The HD inline-sixes, later to become the first in International's long running "Diamond" series, first appeared in the C-30 truck of 1934.Crismon, p. 120 Available in three different displacements (see table), they were renamed "Green Diamond" in late 1940 for the 1941 model year after a number of detail improvements. This year also brought the new "Blue Diamond" (FAC) and "Red Diamond" (FBC) engines. A post-war version of the Blue Diamond became the "Super Blue Diamond" when installed in the post-war medium L-line trucks. The Blue Diamond engine lived on until the early 60's renamed as Black Diamond engines, the BD-282 and BD-308.Crismon, p. 217

International Harvester gasoline I4 enginesEngine Family Cylinder LayoutNameDisplacementBore × StrokeFuel System TypeYears Produced "Comanche" 4 I4 4-152 × Carburetor 1961–1972 4-196 × 1966–1980International Harvester gasoline I6 enginesEngine Family Cylinder LayoutNameDisplacementBore × StrokeFuel System TypeYears Produced HDGreen Diamond I6 HD/GD 175 Crismon, p. 144 × L-headCarburetor 1934–1949 HD-3/GD 214 Crismon, p. 123 × HD-2/GD 233 Crismon, pp. 129-130 × FACBlue Diamond I6 FAC-241 × Carburetor1941-1954 BLD-250 Crismon, p. 212 × FAC-260 × BLD-269 Silver DiamondBlack Diamond/BDBG I6 SD-220 × Carburetor 1949–1969 SD-240/BG-241 × BD-264/BG-265 × BD-282 × BD-308 FBCRed Diamond I6 FBC/RED 318 × Governed Carburetor1941–1974 FBC/RED 361 × RD 372 × FBC/RED 401 × RD 406 × RED 450 then RD 450 × RD 501 × International Harvester gasoline V8 enginesEngine Family Cylinder LayoutNameDisplacementBore × StrokeFuel System TypeYears Produced V/LV V8 LV-401 × Governed Carburetor1955–1974 LV-461 × LV-478 × LV-549 × V-537 × SV"Comanche" V8 SV-266 × Carburetor1959-1985 SV-304 × SV-345 × SV-392 × MV V8 MV-404 Carburetor1974-198? MV-446

International Harvester/Navistar engines International Harvester/Navistar V6/V8 Engine FamilyEngine Family Cylinder LayoutDisplacement(s)Injection TypeYears Produced DV V8 DV 462 - DV 550 - DV 550B - Direct injectionDV 462 - 1966-1988 DV 550 - 1966-1988 DV 550B - 1966-1988 D-Series D 150 D 170 D 190 V8Direct Injection1962-early 19889.0L V8V8Direct Injection1966-1988IDI (International/Ford)V8 Indirect injection 1983-1987 (6.9L) 1988-1994 (7.3L) T444E Original Ford PowerStrokeV8Direct injection 1994-2004 VT 2nd-generation Ford PowerStrokeVT275-V6 VT365-V8Direct injection2003-2010

Navistar DT engines

Navistar DT Engine FamilyEngine FamilyCylinder LayoutDisplacement(s)Injection TypeYears Produced PLN (Pump Line and Nozzle) DT 360 DT 466Inline-6DT 360 - DT 466 - Direct Injection1984-late 1995NGD(New Generation Diesel) DT408 DT466/HT466 DT530/HT530DT 408 - DT 466/HT466 - DT 530/HT530 - 1993-1997 HEUI(Hydraulically actuated Electronically controlled Unit Injection) DT466/HT466 DT530/HT530 DT 466/HT466 - DT 530/HT530 - 1993-2008G2 (Electro-Hydraulic Generation Two) DT 466/HT466 DT 570/HT570DT 466/HT466 - DT 570/HT570 - 2004-2007

MaxxForce engines

Navistar International MaxxForce Engine FamilyEngine Family Cylinder LayoutDisplacement(s)Injection TypeYears ProducedMaxxForce 5 V6Direct Injection 2007-2010MaxxForce 7 3rd Generation Ford PowerStrokeV86.4L2007-2014 (International) 2008-2010 (Ford)MaxxForce DTInline-62007-2014MaxxForce 9MaxxForce 10MaxxForce 1110.5 LMaxxForce 1312.4 L

MWM-International engines In 2005, Navistar acquired MWM International Motores, a Brazilian diesel engine manufacturer formerly associated with the German manufacturer of the same name, Motoren Werke Mannheim AG (MWM). Now called "MWM International Ind. de Motores da America do Sul Ltda.", it has two manufacturing plants: one in São Paulo, Brazil and another in Cordoba, Argentina. Since it was bought by the American group, in addition to the engines manufactured using its own technology and know-how, it has produced two models denominated "NGD", New Generation Diesel, under the brand of "MWM-International". One being a 4-cylinder 3.0 L turbo diesel, featuring piezoelectric common rail direct injection. This engine equipped the South American version of the Ford Ranger and the Troller T4, a Brazil exclusive four wheel drive vehicle. A 6-cylinder 9.3 L turbo diesel was also produced, but mainly dedicated to stationary power applications and the medium-sized trucks, the Volkswagen Constellation Series. +MWM-International NGD Engine Family Engine FamilyCylinder LayoutDisplacement(s)Power outputTorqueInjection TypeYears ProducedNGD MaxxForce 3.0 HSInline-4184 cubic inches (3.0 L)163 hp (122 kW) @ 3800 rpm286 lb⋅ft (388 N⋅m) @1600-2200 rpmDirect Injection2005-2012NGD MaxxForce 10 PInline-6367 hp (273 kW) @2000 rpm1180 lb⋅ft (1600 N⋅m) @1100-1400 rpm2007-2013MaxxForce MWM 4.8HInline-4292 cubic inches (4.8 L)185 hp (137 kW) @ 2200 rpm506 lb⋅ft (687 N⋅m) @1400-1600 rpmCommon Rail2007-PresentMaxxForce MWM 7.2HInline-6440 cubic inches (7.2 L)225 hp (168 kW) @ 2200 rpm850 lb⋅ft (1150 N⋅m) @1400-1600 rpm2007-Present

References