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| NQR Advantages Over GM C4500 |
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GM C4500:
- C4500 is GM's Class 4 medium duty truck
- 16,500 lb. GVWR standard, 17,500 option included in comparison
- Duramax 6.6L V8 diesel engine or 8.1L V8 gasoline engine
- Allison 6-speed automatic transmission
- Available in crew cab, cutaway and motor home cutaway
- Available 4WD
- Cab design derived from full-size van
- Optional 15,000 lb. and 17,500 lb. GVWR
- Numerous options, including suspensions and axles
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NQR Advantages:
- Tilt cab design allows easy servicing of engine vs. non-tilt cabover design of C4500 with limited engine access
- Longer maximum CA allows NQR to carry 22-foot bodies vs. 18-foot maximum for C4500
- More maneuverable NPR design can turn circle in 45.3 ft. vs. 51.3 ft. for C4500 with same 16-foot body capacity
- Fold-down center seat with work-ready surface vs. optional center seat
- Available 6-speed manual transmission vs. no optional manual transmission
- In-cab fluid fills simplify service checks vs. no in-cab fills
- Greater visibility through large windows. Driver can see ground 8.6 feet from front bumper in
- NQR vs. 13 ft. for C4500
- Isuzu offers the efficiency of lower weight; 1200 lb. less for diesel trucks. The extra weight requires extra fuel to move, whether the truck is loaded or unloaded
- Wider door opening for easy entry and exit (85° vs. 70°)
- Unlimited mileage 3-year basic warranty vs. unlimited mileage 2-year basic warranty
- Standard tilt and telescopic steering column vs. optional tilt steering wheel on C4500
- Standard exhaust brake vs. optional exhaust brake contributes to longer brake component life
- Standard cruise control, power windows and power door locks vs. optional on GM
- 50-state clean idle certification on Isuzu vs. timed idle shut-down on C4500
- Available Vehicle Health Reports allows Isuzu fleet to monitor drivers and vehicle service needs. Not available on GM
- NQR has approximately 2000 lb. higher payload for similarly equipped diesel truck due to lighter base vehicle weight and 450 lb. higher GVWR
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| SPECIFICATIONS |
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Isuzu NQR |
GM C4500 |
| GVWR |
17,950 lb. |
17,500 lb. |
| Engine type (gas) |
SOHC I-4 |
OHV V8 (OHV V8) |
| Displacement (gas) |
5.2L |
6.6L (8.1L) |
| HP, gas |
NA |
325 @ 4000 |
| Torque, gas |
NA |
450 @ 2800 |
| HP, diesel (MT) |
175 @ 2400 |
NA |
| HP, diesel (AT) |
205 @ 2400 |
300/330 @ 3000 |
| Torque, diesel (MT) |
387 @ 1850 |
NA |
| Torque, diesel (AT) |
441 @ 1850 |
520/620 @ 1600 |
| Clutch, in. |
12.8 |
NA |
| Transmission, gas |
NA |
6ODA Allison |
| Transmission, diesel |
6ODA Aisin |
6ODA Allison |
| Alternator, amp (gas) |
110 |
150 (145) |
| Steering |
18.8-20.9:1 power |
ZF variable ratio power |
| Front axle, lb. |
6,830 |
7,000 |
| Front springs, lb. |
8,440 taperleaf |
7,000 taperleaf |
| Rear axle, lb. |
14,550 |
13,500 |
| Rear springs, lb. |
14,550 multileaf |
13,500 multileaf |
| Wheels |
19.5 x 6 in. 6-bolt |
19.5 x 6 in. |
| Tires |
225/70R-19.5F |
225/70R-19.5 |
| Brakes, front |
14.3 in. disc |
15 in. disc |
| Brakes, rear |
12.6 x 4.72 in. drum |
15 in. disc |
| Frame, psi |
44,000 |
80,000 |
| Frame width, in |
33.5 |
33.5 |
| Frame section modulus |
7.20 cu. in. |
7.63 |
| Frame RBM |
316,800 |
610,400 |
| Battery, CCA (gas) |
2x750 |
2x750 (1x600) |
| Fuel tank, gal. |
30 in-frame |
25 LH |
| Seating |
Driver & 2 pass. |
2 buckets |
| Mirrors, in. |
8x17 |
7x12 + 7x6 |
| WB/CA (effective) |
109.0/80.0 |
128/60 |
| 132.5/103.5 |
152/84 |
| 150.0/121.0 |
176/108 |
| 176.0/147.0 |
188/120 |
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200.0/171.0 |
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| WB/Turning Diameter |
109.0/33.5 |
128/38.6 |
| (curb-to-curb, ft.) |
132.5/40.7 |
152/44.7 |
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150.0/45.3 |
176/48.6 |
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176.0/51.9 |
188/51.3 |
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200.0/58.5 |
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| WB/Body lengths |
109.0/10,12 |
128/8 |
| 132.5/14 |
152/8, 10, 12 |
| 150.0/16, 18 |
176/10, 12, 14, 16 |
| 176.0/20 |
188/12, 14, 16, 18 |
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200.0/22 |
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| STANDARD EQUIPMENT |
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Isuzu NQR |
GM C4500 |
| Vehicle Health Reports |
Standard |
Not Available |
| 50 State Clean Idle |
Standard |
Not Available |
| Drop-design windows |
Standard |
Not Available |
| Exhaust brake |
Standard |
Optional (diesel) |
| 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 |
Standard |
| Cruise control |
Standard |
Optional |
| Air conditioning |
Optional |
Optional |
| PTO prep. |
Standard |
Optional |
| Power windows |
Standard |
Optional |
| Power door locks |
Standard |
Optional |
| Floor mat |
Standard |
Standard |
| Tachometer |
Standard |
Standard |
| Convex mirrors |
Standard |
Standard |
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| OPTIONAL EQUIPMENT |
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Isuzu NQR |
GM C4500 |
| Engine block heater |
Optional |
Optional |
| Engine oil pan heater |
Optional |
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| Limited slip differential |
Optional |
Optional |
| AM/FM/CD |
Optional |
Optional |
| Air deflector |
Optional |
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| Spare wheel |
Optional (Dealer Installed) |
Standard |
| Side mounted fuel tank |
Optional |
Optional |
| Engine protection system |
Optional |
Optional |
| Engine hour meter |
Optional |
Standard |
| Backup alarm |
Optional |
Optional |
| Chrome wheel sim. |
Optional |
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| Heated mirrors |
Optional |
Optional |
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| WARRANTY |
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Isuzu NQR |
GM C4500 |
| Base warranty, diesel |
36 months/unlimited miles |
24 months/unlimited miles |
| Base warranty, gas |
NA |
24 months/unlimited miles |
| Engine warranty, diesel |
36 months/unlimited miles |
60 months/100,000 miles |
| Engine warranty, gas |
NA |
24 months/unlimited miles |
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