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36:
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optimize fuel efficiency. After the hybrid is started, the electric motor, which draws stored electricity from the battery pack, is used to get the vehicle up to speed, the lieutenant said. Once the truck is at an optimal speed, the diesel engine takes over. The battery pack restores energy by a regenerative braking process. The system captures energy that is lost during the driver's "stop and go" process."
484:
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trailer. To compensate for the offset cab the engine “doghouse” intruded into the passenger footwell but left the driver's position intact. The U series superseded the C series, with a BBC length only one inch longer (89 vs 90) but with the improvements of the R cab. While the U series was only ever offered as a tractor, the offset cab layout would also be used in the DM series.
676:
333:
672 cu in (11.0 L) I6, “9” was for the 998 cu in (16.4 L) V8, in 1987 the "7” 728 cu in (11.9 L) I6 was introduced. The next three digits were the horsepower rating of the engine, and an “L” suffix indicated an "Econodyne" low speed model. An example of the difference would be the ENDT673 and later E6-200 being similar engines.
297:
With the introduction of the
Maxidyne ENDT-675 in 1966, Mack offered a series of engines that provided better fuel economy and less driver fatigue. The engines produced what Mack called constant-power, with high levels and max levels of horsepower and torque offered at a low and narrow RPM band. This
252:
The B series trucks had a successful production from 1953 until 1966, but they were due for update for driver comfort and safety. Introduced in 1965, the R series production overlapped with the B series to ease the transition for customers. Of the changes between series, the most significant was the
264:
series of gasoline and diesel engines of 6 and 8 cylinder varieties. By 1966, the new
Maxidyne diesel engine had supplanted the earlier engines. Engine codes were broken down as follows: EN - Engine (gasoline), END - Engine Diesel, and ENDT - Engine Diesel Turbocharged, followed by the three number
372:
also used the R cab on their 700 series Husky line of trucks in the mid-70's, which is often attributed as one of the reasons that
Brockway went out of business. Brockway was attempting to expand market share, competing directly with its parent company Mack and having a vehicle with the exact same
364:
Mack utilized the cab of the R in a variety of ways beyond the R itself. With the B series still in widespread use in the late 1960's, Mack offered a B to R upgrade for the cab and front sheet metal. This allowed operators to keep the mechanical portions of the older truck that may have not needed
355:
A small series of "R-Model Legend" models were built at the end of the RD/RM production run. These models, announced by Mack in 2003, included a special steering wheel, limited edition paint, badges chrome and embroidered seats. Mack was reported to have planned to make 100, but it is unclear how
223:
As with its predecessor, the R was offered in a wide variety of configurations for a comprehensive array of vocational and transportation applications. In addition, multiple Mack truck lines have shared components with the R, including the SuperLiner and CH/CL conventionals and the F, WR, and MH
465:
established ties with Mack in 1963 to produce licensed built trucks including the R. Approximately 60% of the content being
Iranian sourced. Specifications and design of the R were modified to be suitable to Iran. With over 98% of the heavy duty trucks in Iran being Macks, either being produced
239:
until Mack closed its assembly facility there in 1980. The series was also produced locally by Mack
Australia and in Iran (the latter, license-built, prior to 1979). During the 1990s, Mack began to phase out highway variants of the R in favor of the updated CH/CL, with severe-duty/construction
393:
In conjunction with the US Air Force, Mack built a prototype heavy-duty hybrid electric av gas refueler in 2005. This RD utilized the hybrid engine to reduce fuel costs and emissions. According to the Air Force, "The vehicle operates with a diesel engine, an electric motor and a battery pack to
276:
In addition to the regular R series, Mack developed a cab/hood combination derivative to offer a shorter "Bumper to Back of Cab (BBC)" length, known as the U series. The U had an offset cab, coined the "Commandcab" that placed the drivers side door in the same vertical plane as the side of the
253:
introduction of the new cab. While maintaining the same width as the B series, the interior height was higher and the windshield was almost vertical, reminiscent of the L series trucks. The driver's seat was height-adjustable, and there were increased usage of sound deadening materials.
332:
By 1988 the numbering system had changed slightly. The prefix “D" and "T”, no longer needed as all engines were diesel and turbocharged, were discarded, as was the "N". The prefix “M” was for “Maxidyne” wide power range models, C was for
California certified engines. A “6” was for the
280:
The DM was an extra heavy duty version of the U often used in 6X4 construction trucks. Like the RMM, the DMM was all wheel drive, but had not only a short hood/offset cab, but also a set back front axle, requiring a model specific fiberglass hood/fender arrangement.
256:
While the B had a more conventional hood and fenders that limited access to the engine bay, the R had a one-piece fiberglass hood that was hinged at the front. This setup is now the industry standard and gave unprecedented access to all of the mechanical components.
224:
cabover trucks. Though not the first truck to adopt a forward-tilting hood, the Mack R introduced several innovations, including an air-ride cab, an integral engine compression brake, and a drivetrain that reduced the need for an auxiliary transmission.
929:
431:
639:
339:
The RD was given a new more aerodynamic nose in 1991, with square sealed beam headlights. The other R models would continue with the '65 era nose until they went out of production.
284:
Mack also developed a RL series lightweight series, primarily as a "western model". The RL made use of significantly more aluminum, including in the frame and other components.
308:
cab was given a makeover to include a deeper rear wall for more room and a new dashboard design. Additionally, the dashboard was modified to include more plastic components.
470:
in 1979, Iran Kaveh put an end to sales of new Macks in the country. It was estimated that in 1987 there were between 35,000 - 55,000 Mack trucks operating in Iran.
324:
1025:
232:
1185:
820:
474:
449:
440:
365:
replacement and marry them with the much improved cab of the R. It is unclear of how many of these kits were sold and installed.
162:
1119:
651:
1180:
709:
268:
1144:
216:, the R was a heavy-duty truck (Class 8) with a conventional (bonneted) cab configuration. With the exception of the
687:
1018:
663:
904:
386:
347:
The RD/RM ended production in late 2003 as a 2004 model. The RB and DM were scheduled to be built into 2004.
1195:
1139:
228:
71:
473:
Mack Canada made a shipment of 20 non-military RD 800 series trucks rigged for oil field operations to the
1190:
786:
675:
402:
In addition the US plants, Mack produced the R model (and some derivatives) in both
Australia and Iran.
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104:
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In addition to the
Maxidyne engine, Mack also introduced the Maxitorque transmission.
1174:
1109:
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217:
213:
182:
749:
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allowed the operator to shift less, lowering the effort needed to drive the trucks.
1053:
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86:
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1048:
1034:
704:
492:
209:
51:
1159:
58:
316:
The RW Superliner with a large, rectangular hood and grill came in 1977.
235:
after 1975); several versions (including the SuperLiner) were produced in
1089:
1063:
1058:
220:, the Mack R is the longest-produced commercial truck in history.
977:
975:
260:
Like the outgoing B series, the R series was initially powered by the
150:
83:
477:
of Tehran in 1987; this was the first shipment to Iran since 1979.
385:
323:
267:
79:
1007:
1003:
955:"Father Of Iran's Truck Industry Dies At 91 - Iran Front Page"
729:
373:
cab did not help the smaller company differentiate itself.
328:
R (left) and RD Mixers with old and new fiberglass noses.
336:
The setback front axle RB was introduced in the 1990s.
815:. Iconografix. pp. 196–199, 201–204, 207–210, 218.
597:
Note: the xx is the place holder for the engine code.
304:
The RL series was introduced in 1967, and in 1973 the
515:- Set back front axle (except in New Zealand - see
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1041:
188:
178:
173:
161:
149:
144:
130:
120:
110:
98:
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67:
57:
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42:
24:
208:) is a series of trucks that was manufactured by
1019:
930:"Shaw to begin one-year hybrid refueler test"
8:
905:"The End of An Era: Mack's Special Edition"
272:DM Mixer on subway tracks (note offset cab)
1026:
1012:
1004:
34:
21:
745:
743:
212:from 1966 to 2005. The successor of the
240:variants lasting through 2005, with the
721:
623:
549:- Western R series, L (aluminum frame)
479:
409:
880:"A workhorse retires from Mack Trucks"
983:"MACK SOLD TRUCKS TO IRANIAN COMPANY"
763:"Mack Trucks History Years 1960-1969"
233:Lower Macungie Township, Pennsylvania
7:
874:
872:
837:Operators Handbook-DM, DMM, U Series
543:- Western R series, S (steel frame)
531:- 4x4 Municipal/maintenance chassis
865:. Mack Trucks. 1996. pp. 6, 9.
787:"What Models Were Built @ Hayward?"
555:- Western series, replaced by the
537:- 6x6 Municipal/maintenance chassis
244:series for those applications.
839:. Mack Trucks. 1988. pp. 2–5.
767:www.macktruckshistoricalmuseum.org
14:
157:200–440 hp (150–330 kW)
16:Line of Class 8 heavy-duty trucks
686:
674:
662:
650:
638:
626:
491:
482:
448:
439:
430:
421:
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579:Chassis numbers (GVW Rating):
227:The R was produced by Mack in
1:
475:National Iranian Drilling Co.
710:List of Mack Trucks Products
1186:Vehicles introduced in 1966
863:Operators Handbook-R Series
681:DM dump truck with snowplow
610:L - Light weight components
1212:
356:many were actually built.
813:Mack Trucks Photo Gallery
811:Warth, Thomas E. (1998).
466:locally or imported, the
265:cubic inch displacement.
89:(Was known as Iran Kaveh)
33:
693:U-model with offset cab
564:- Short hood offset cab
229:Allentown, Pennsylvania
167:Mack / Fuller (manual)
126:4x2, 4x4, 6x4, 6x6, 8x6
72:Allentown, Pennsylvania
850:Operators Handbook(88)
390:
351:Legend Special Edition
329:
273:
607:S - Six wheel chassis
389:
327:
271:
1181:Mack Trucks vehicles
576:- All wheel drive DM
116:Truck (bonneted cab)
368:Truck manufacturer
237:Hayward, California
204:(also known as the
169:Allison (automatic)
155:Turbocharged diesel
76:Hayward, California
501:Model designations
398:Foreign production
391:
330:
288:Production history
274:
1168:
1167:
791:BigMackTrucks.com
752:- Mack Trucks.com
750:Corporate History
509:- Standard model
198:
197:
1203:
1120:M123/M125 series
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1021:
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987:The Morning Call
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613:X - Extreme duty
601:Suffix letters:
557:Mack Super-Liner
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468:fall of the Shah
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443:
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377:Military service
139:Mack Super-Liner
94:Body and chassis
59:Model years
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525:- Heavy Duty R
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136:Mack DM Series
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112:Body style
78:
74:
20:
17:
12:
11:
5:
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1196:Class 8 trucks
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734:saipadiesel.ir
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669:DM mixer truck
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645:R semi-tractor
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633:R refuse truck
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570:- Heavy-duty U
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134:Mack U Series
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1191:Tractor units
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1042:In production
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989:. 2021-10-02
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822:1-882256-88-3
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657:RD dump truck
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382:R-11 Refueler
381:
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218:Kenworth W900
215:
214:Mack B series
211:
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202:Mack R series
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105:Class 8 truck
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62:
60:
56:
53:
50:
46:
41:
37:
32:
29:
28:
23:
19:Motor vehicle
1149:
1130:MC/MR series
1083:Discontinued
991:. Retrieved
986:
963:. Retrieved
961:. 2019-07-31
958:
949:
938:. Retrieved
936:. 2007-05-07
933:
924:
913:. Retrieved
911:. 2003-09-01
908:
899:
888:. Retrieved
886:. 2003-11-09
883:
862:
857:
849:
845:
836:
831:
812:
806:
795:. Retrieved
793:. 2006-02-18
790:
781:
770:. Retrieved
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733:
724:
596:
573:
567:
561:
552:
546:
540:
534:
528:
522:
512:
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367:
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360:R series Cab
354:
346:
338:
335:
331:
315:
305:
303:
300:
296:
283:
279:
275:
259:
255:
251:
242:Mack Granite
226:
222:
206:Mack Model R
205:
201:
199:
193:Mack Granite
183:Mack B Model
163:Transmission
87:Saipa Diesel
48:Manufacturer
27:Mack R Model
26:
25:
1155:Super-Liner
1135:Metro-Liner
1035:Mack Trucks
959:ifpnews.com
705:Mack Trucks
604:T - Tractor
248:Development
210:Mack Trucks
179:Predecessor
52:Mack Trucks
1175:Categories
993:2024-09-13
965:2023-09-12
940:2023-09-12
915:2023-09-08
909:Truck News
890:2023-09-08
797:2024-02-26
772:2024-02-26
716:References
517:NZ Mack RB
463:Iran Kaveh
262:Thermodyne
174:Chronology
145:Powertrain
1145:NO Series
1140:NM Series
1105:EH series
1100:CH series
1090:AC series
934:Air Force
406:Australia
343:1995–2004
320:1985–1995
312:1975–1985
293:1965–1975
189:Successor
63:1966-2005
1150:R series
1115:L series
1110:F series
1095:B series
1074:TerraPro
1069:Pinnacle
699:See also
370:Brockway
68:Assembly
43:Overview
1054:Granite
620:Gallery
131:Related
1125:Magnum
1049:Anthem
819:
730:"Home"
151:Engine
122:Layout
84:Tehran
1160:Titan
591:8xx -
588:7xx -
585:6xx -
582:4xx -
100:Class
852:p.60
817:ISBN
458:Iran
200:The
80:Iran
574:DMM
535:RMM
1177::
1064:MD
1059:LR
985:.
974:^
957:.
932:.
907:.
882:.
871:^
789:.
765:.
742:^
732:.
568:DM
553:RW
547:RL
541:RS
529:RM
523:RD
513:RB
82:,
1027:e
1020:t
1013:v
996:.
968:.
943:.
918:.
893:.
825:.
800:.
775:.
736:.
562:U
519:)
507:R
306:R
231:(
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