Specifications
|
TOC |
Holset® SS338/QE338 A/C Models
| Cylinders |
1 |
| Compressor Capacity at 1250 rpm |
6.2 liter per second [13.20 CFM] |
| Piston Displacement |
296 cc [18.06 C.I.D.] |
| Bore |
92.08 mm [3.625 in] |
| Stroke |
44.45 mm [1.750 in] |
| Speed |
Engine Speed |
| Cooling |
Engine Coolant |
| Lubrication |
Engine Lubricating Oil |
Plumbing Line Sizes:
| Coolant inlet and outlet (pipe fitting) |
[0.375 in] NPTF |
| Air inlet (inside diameter) |
22.22 mm [0.875 in] |
| Air outlet (minimum inside diameter) |
12.7 mm [0.50 in] |
| Height, Overall (approximate) |
31.1 cm [12.25 in] |
| Width, Overall (approximate) |
14.6 cm [5.75 in] |
| Length, Overall (approximate) |
22.9 cm [9 in] |
| Weight (approximate) |
18 kg [40 lb] |
Holset® Models
| Cylinders |
1 |
| Compressor Capacity at 1250 rpm |
7.1 liter per second [15 CFM] |
| Piston Displacement |
338 cc [20.63 C.I.D.] |
| Bore |
98.4 mm [3.875 in] |
| Stroke |
44.5 mm [1.75 in] |
| Speed |
Engine Speed |
| Cooling |
Engine Coolant |
| Lubrication |
Engine Lubricating Oil |
Plumbing Line Sizes:
| Coolant inlet and outlet (pipe fitting) |
[0.375 in] NPTF |
| Air inlet (inside diameter) |
22.22 mm [0.875 in] |
| Air outlet (minimum inside diameter) |
12.7 mm [0.50 in] |
| Height, Overall (approximate) |
31.1 cm [12.25 in] |
| Width, Overall (approximate) |
14.6 cm [5.75 in] |
| Length, Overall (approximate) |
22.9 cm [9 in] |
| Weight (approximate) |
18 kg [40 lb] |
Holset® ST676 A/C Model
| Cylinders |
2 |
| Compressor Capacity at 1250 rpm |
14.2 liter per second [30 CFM] |
| Piston Displacement |
676 cc [41.3 C.I.D.] |
| Bore |
92.08 mm [3.625 in] |
| Stroke |
50.8 mm [2 in] |
| Speed |
Engine Speed |
| Cooling |
Engine Coolant |
| Lubrication |
Engine Lubricating Oil |
| Coolant Inlet and Outlet (pipe fitting) |
[0.50 in] NPTF |
| Air Inlet (inside diameter) |
22.22 mm [0.875 in] |
| Air Outlet (minimum inside diameter) |
15.88 mm [0.625 in] |
| Height, Overall (approximate) |
31.1 cm [12.25 in] |
| Width, Overall (approximate) |
14.6 cm [5.75 in] |
| Length, Overall (approximate) |
22.9 cm [9 in] |
| Weight (approximate) |
18 kg [40 lb] |
NOTE: In applications where duty cycles average 10 percent or more, or air pressures are above 862 kPa [125 psi], use a discharge line with a minimum inside diameter of 15.9 mm [0.625 in] for single cylinder compressors and 25.4 mm [1 in] for twin cylinder compressors to prevent carbon buildup. Examples of these applications are as follows:
- Refuse trucks
- Pickup and delivery trucks
- Transit buses
- Equipment with high accessory air usage.
Holset® ST773 A/C Model
| Cylinders |
2 |
| Compressor Capacity at 1250 rpm |
16.05 liter per second [34 CFM] |
| Piston Displacement |
773 cc [47.16 C.I.D.] |
| Bore |
98.4 mm [3.875 in] |
| Stroke |
50.8 mm [2 in] |
| Speed |
Engine Speed |
| Cooling |
Engine Coolant |
| Lubrication |
Engine Lubricating Oil |
| Coolant Inlet and Outlet (pipe fitting) |
[0.50 in] NPTF |
| Air Inlet (inside diameter) |
22.22 mm [0.875 in] |
| Air Outlet (minimum inside diameter) |
15.88 mm [0.625 in] |
| Height, Overall (approximate) |
31.1 cm [12.25 in] |
| Width, Overall (approximate) |
14.6 cm [5.75 in] |
| Length, Overall (approximate) |
22.9 cm [9 in] |
| Weight (approximate) |
18 kg [40 lb] |
NOTE: In applications where duty cycles average 10 percent or more, or air pressures are above 862 kPa [125 psi], use a discharge line with a minimum inside diameter of 19 mm [0.75 in] to prevent carbon buildup. Examples of these applications are as follows:
- Refuse trucks
- Pickup and delivery trucks
- Transit buses
- Equipment with high accessory air usage.
| Load Required to Compress A/C Spring to Measurement Length |
| Spring Part Number |
Spring Use |
Approximate Free Length mm [in] |
Number of Coils |
Wire Diameter mm [in] |
Measurement Length mm [in] |
Minimum kg [lb] |
Maximum kg [lb] |
| 128080 |
Exhaust Valve |
17.02 [0.670] |
3 |
2.03 [0.080] |
7.11 [0.280] |
3.6 [8.55] |
4.7 [10.35] |
| 190334 |
Intake Valve |
12.70 [0.500] |
2.8 |
1.58 [0.062] |
7.11 [0.280] |
0.35 [0.65] |
0.5 [1.10] |
| 150631 |
Unloading Valve (naturally aspirated) center unloading valve-twin |
41.91 [1.650] |
11.5 |
2.03 [0.080] |
24.89 [0.980] |
14.5 [32] |
17.2 [38] |
| 3023101 |
Unloading Valve (all turbocharged engines) |
41.91 [1.650] |
10.8 |
1.65 [0.065] |
24.89 [0.98] |
5.9 [13] |
7.7 [17] |
| 3049553 |
E-Type Unloader Valve |
41.91 [1.650] |
11.25 |
1.93 [0.076] |
24.89 [0.98] |
10.4 [23] |
12.2 [27] |
| 800399-XW |
Unloader |
17.02 [0.67] |
6 |
1.04 [0.041] |
6.60 [0.260] |
N/A |
2.54 [5.60] |
| |
10.03 [3.95] |
1.71 [3.78] |
N/A |
| 802000-FZ |
Intake and Exhaust |
10.16 [0.40] |
4.25 |
0.79 [0.031] |
4.57 [0.18] |
N/A |
0.36 [0.80] |
| |
5.99 [0.275] |
0.20 [0.45] |
N/A |
| 3054489 |
Exhaust Valve |
21.49 [0.846] |
4.5 |
2.54 [0.100] |
15.21 [0.599] |
3.88 [8.55] |
4.74 [10.45] |
|
Last Modified: 16-May-2007
Published by Jack
Hello, I'm Jack, a diesel engine fan and a blogger. I write about how to fix and improve diesel engines, from cars to trucks to generators. I also review the newest models and innovations in the diesel market. If you are interested in learning more about diesel engines, check out my blog and leave your feedback.
View all posts by Jack
