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F-550 Super Duty:
- While the conventional cab F-550 is a different configuration than the low cab forward NRR, it is the dominant product in class 5.
- Chassis cab version of Super Duty pickup
- 17,950 GVWR for F-550
- 6.8L V-10 gas standard or 6.4L V8 diesel optional
- Ford 5-speed automatic optional, or 6-speed manual standard
- 2WD and 4WD
- Regular cab, extended cab and crew cab
- 4 WB for regular cab; 1 WB for extended cab and 2 WB for crew cab
NRR Advantages Over F-550 Super Duty:
- Longer maximum CA and CE dimensions on longest wheelbase allows NRR to handle longer bodies (24 ft. vs. 16 ft.)
- Ford's 19,995 lb. GVWR is only available on 201-in. WB trucks, while NRR is available with 19,500 lb. GVWR on all wheelbase lengths
- High-capacity front taperleaf springs provide excellent ride quality with long-term durability (8840 lb. taperleaf vs. 6000 lb. coil springs on Ford)
- High-capacity rear springs for long-term durability (14,550 lb. vs. 13,500 lb.)
- Variable ratio power steering for quicker, easier maneuverability (vs. constant ratio on F-550 Super Duty)
- Tighter turning diameter (curb-to-curb) for comparable cab-to-axle ratio results in much better maneuverability and time saved on the job site (45.3 ft./120-in. CA vs. 57.9 ft./120-in. CA)
- Large, retractable West Coaststyle mirrors for driver vision (small, foldaway camper-style mirrors on F-550 Super Duty)
- Wider door opening for easy entry and exit (85 degrees vs. 60 degrees)
- Durable tricot breathable woven seat material for comfort and durability (Standard vinyl on F-550; cloth optional on F-550 Super Duty)
- Standard tilt and telescopic steering column (optional tilt steering wheel on F-550)
- Tilt cab allows easy engine access (limited engine access through hood on F-550 Super Duty)
- Higher frame yield strength contributes to long-term durability (44,000 psi vs. 36,000 psi)
- Greater visibility with larger windshield, larger side windows, larger side mirrors and lower dash for greater driver vision and safety
- Fold-down passenger's seat and center seat with tray standard, for convenience (not available on F-550 Super Duty)
- Battery box on frame rails of NRR helps extend battery life by removing batteries from hot under-hood area, used by Ford
- Standard exhaust brake to help extend brake life (not available on F-550 Super Duty)
- Diesel engine is standard, for added value (optional on F-550 Super Duty)
- 6-speed Aisin automatic transmission vs. 5-speed Ford automatic
- Standard cruise control, power windows and power door locks vs. optional on Ford
- Longer warranty contributes to lower operating costs (3 years/unlimited miles vs. 3 years/36,000 miles full coverage and up to 5 years/100,000 miles with a deductible charge)
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Isuzu NRR |
Ford F-550 |
| GVWR |
19,500 lbs. |
17,995/19,995 lbs. |
| Engine type, diesel |
SOHC I-4 Turbo |
OHV V8 Turbo |
| Displacement, diesel |
5.2L |
6.4L |
| HP, diesel |
205 @ 2400 |
325 @ 3000 |
| Torque, diesel |
441 @ 1850 |
600 @ 2000 |
| Engine type, gas |
NA |
6.8L SOHC V10 |
| HP, gas |
NA |
362 @ 4750 |
| Torque, gas |
NA |
457 @ 3250 |
| Clutch, in. |
NA |
12.8 |
| Transmission, man. |
NA |
6OD |
| Transmission, auto. |
6OD Aisin |
5OD Ford |
| Alternator, amp |
110 |
130 |
| Battery, CCA (gas) |
2x750 |
2x750 (1x750) |
| Steering |
18.8-20.9:1 power |
20.3:1 power |
| Front axle, lb. |
6,830 |
7,000 |
| Front springs, lb. |
8,440 taperleaf |
6,000 coil |
| Rear axle, lb. |
14,550 |
16,975 |
| Rear springs, lb. |
14,550 multileaf |
13,600 multileaf |
| Wheels |
19.5 x 6 in. 6-bolt |
19.5 x 6 in. 10-bolt |
| Tires |
225/70R-19.5F |
225/70R-19.5F |
| Brakes, front |
14.3 in. disc |
14.5 in. disc |
| Brakes, rear |
14.6 x 5.9 drum |
15.3 in. disc |
| Frame, psi |
44,000 |
36,000 |
| Frame width, in |
33.5 |
33.1 |
| Frame section modulus |
7.20 cu. in. |
10.1/17.2 cu. in. |
| Frame RBM |
316,800 |
363,600 |
| Fuel tank, gal. |
30 in-frame |
40 in-frame |
| Seating |
Driver & 2 pass. |
3-pass. bench |
| Mirrors, in. |
6x16 |
7x8.5 |
| WB/CA (effective)/Turning Diameter |
109.0/80.0/33.5
132.5/103.5/40.7
150.0/121.0/45.3
176.0/147.0/51.9
200/171.0
212/183.0 |
141/60.0/42.3
165/84.0/48.6
189/108.0/54.8
201/120/57.9 |
| WB/Body lengths |
109.0/10
132.5/12, 14
150.0/16
176.0/18, 20
200/22
212/24 |
141/8, 9
165/10, 11, 12
189/11, 12, 14,
201/14, 16 |
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Isuzu NRR |
Ford F-550 |
| Drop-design windows |
Standard |
Not Available |
| Exhaust brake |
Standard |
Not Available |
| Tilt/telescopic steering column |
Standard |
Optional Tilt |
| Tricot fabric |
Standard |
Optional Fabric |
| Tilt cab |
Standard |
Not Available |
| Folding center seat |
Standard |
Optional |
| Daytime running lamps |
Standard |
Optional |
| PTO prep. |
Standard |
Optional |
| Cruise control |
Standard |
Optional |
| Power windows |
Standard |
Optional |
| Power door locks |
Standard |
Optional |
| Convex mirrors |
Standard |
Standard |
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Isuzu NRR |
Ford F-550 |
| Engine oil pan heater |
Optional |
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| Air conditioning |
Optional |
Optional |
| AM/FM/CD |
Optional |
Optional |
| PTO switch |
Optional |
Optional |
| Side mounted fuel tank |
Optional 33 gal. |
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| Engine protection system |
Optional |
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| Engine hour meter |
Optional |
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| Backup alarm |
Optional |
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Isuzu NRR |
Ford F-550 |
| Base warranty |
36 months/unlimited mileage |
36 months/36,000 miles |
| Engine warranty |
36 months/unlimited mileage |
36 months/36,000 miles |
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