Engine Family: QST30, QSK23, QSK45, QSK60, QSK78, NH (5 1/8 bore), NT (5 1/2 bore), V903, V28, K19, K38, K50 & QSK19
This thread salvage kit is used to salvage/repair damaged cylinder head cap-screw threads in the cylinder block. The damaged threads are “reamed out” and tapped to accept a special threaded repair bushing to accept the original size cylinder head cap-screw. The specific drills, taps, reamers, jam nuts, and must be purchased separately.
| Ref. No. |
Part No. |
Description |
Quantity |
| 1 |
3164014 |
Mounting Plate |
1 |
| 2 |
3164015 |
Drilling Fixture |
1 |
| 3 |
S-123B |
Hex head capscrew, 5/8 – 18 x 3-inch |
1 |
| 4 |
S-658 |
Heavy washer |
1 |
| 5 |
3164016 |
Universal drive socket |
1 |
| 6 |
3164019 |
Chip vacumn |
1 |
| 7 |
3824038 |
Thread-locking compound |
1 |
| 8 |
3824715 |
Primer |
1 |
| 9 |
3377208 |
Locating pin |
1 |
| 10 |
3377209 |
Locating pin |
1 |
| 11 |
3164039 |
Stop collar |
1 |
| 12 |
3164020 |
Stop collar |
1 |
| 13 |
3164034 |
Spacer |
2 |
| 14 |
3164035 |
Spacer |
2 |
| 15 |
3376206 |
Spacer |
1 |
| Not Shown |
S-640 |
Plain washer |
4 |
| Not Shown |
3164240 |
Storage case |
1 |
The following Tables specify the correct Jam nuts, Insert, reamers, taps and drills to be used with the 3164021 Thread Salvage Kits. These items must be purchased separately.
| Table 1 |
Part Number |
Description |
| |
S-690 |
Plain Washer |
| |
3823532 |
Right-angle drill (heavy duty) |
| Table 2 |
QST30 Cylinder Head Capscrew Threads |
| |
Part Number |
Description |
Quantity |
| |
3251297 |
Nut, jam (M16 x 2) |
1 |
| |
3163563 |
Insert, thread |
1 |
| |
3163898 |
Reamer |
1 |
| |
3163900 |
Tap |
1 |
| |
3164334 |
Drill |
1 |
| Table 3 |
QSK45 & QSK60 Cylinder Head Capscrew Threads |
| |
Part Number |
Description |
Quantity |
| |
3164241 |
Nut, jam (M16 x 1.5) |
1 |
| |
3163709 |
Insert, thread |
1 |
| |
3163898 |
Reamer |
1 |
| |
3163900 |
Tap |
1 |
| |
3164334 |
Drill |
1 |
| Table 4 |
QSK78 Cylinder Head Capscrew Threads |
| |
Part Number |
Description |
Quantity |
| |
3163841 |
Nut, jam (M18 x 2.5) |
1 |
| |
3163838 |
Insert, thread |
1 |
| |
3163899 |
Reamer |
1 |
| |
3163901 |
Tap |
1 |
| |
3164335 |
Drill |
1 |
| Table 5 |
NH (5-1/8 bore) Cylinder Head Capscrew Threads |
| |
Part Number |
Description |
Quantity |
| |
3164343 |
Nut jam (7/8 – 14) |
1 |
| |
3377133 |
Insert, thread |
1 |
| |
3375202 |
Reamer |
1 |
| |
3375203 |
Tap |
1 |
| Table 6 |
NT ( 5 1/2 bore), V903 & V28 Cylinder Head Capscrew Threads |
| |
Part Number |
Description |
Quantity |
| |
3164344 |
Nut, jam (11/16 – 16) |
1 |
| |
3377134 |
Insert, thread (short insert) |
1 |
| |
3377135 |
Insert, thread (long insert) |
1 |
| |
3376007 |
Tap |
1 |
| |
3164334 |
Drill |
1 |
| Table 7 |
K19, K38, K50 & QSK19 Cylinder Head Capscrew Threads |
| |
Part Number |
Description |
Quantity |
| |
S-249 |
Nut, jam (3/4 – 16) |
1 |
| |
3377136 |
Insert, thread (short insert) |
1 |
| |
3377137 |
Insert, thread (long insert) |
1 |
| |
3376205 |
Tap |
1 |
| |
3164335 |
Drill |
1 |
| Table 8 |
QSK45 & QSK60 Main Bearing Capscrew Threads |
| |
Part Number |
Description |
Quantity |
| |
3165070 |
Nut (M24 – 16) |
1 |
| |
3164961 |
Insert, thread |
1 |
| |
NA |
**Reamer, 1.046-inch |
1 |
| |
NA |
**Tap, 1.125-14 |
1 |
| |
NA |
**Drill, 1-inch |
1 |
| |
3164964 |
Spacer |
1 |
| Table 9 |
NH, NT, V28, K19 & K38 Main Bearing Capscrew Threads |
| |
Part Number |
Description |
Quantity |
| |
NA |
**Nut (1-14) |
1 |
| |
3376403 |
Insert, thread |
1 |
| |
NA |
**Reamer, 1.046-inch |
1 |
| |
NA |
**Tap, 1.125-14 |
1 |
| |
NA |
**Drill, 1-inch |
1 |
| Table 10 |
QSK23 |
| |
Part Number |
Description |
Quantity |
| |
4918701 |
Insert Installer Kit (Includes 4918647 Plug and 4918724 Insert Installer |
1 |
| |
4918649 |
Tap |
1 |
| |
4918651 |
Reamer |
1 |
| |
4918429 |
Coolant Passage Insert |
1 |
| |
4918430 |
Coolant Passage Insert |
1 |
**These items are not available thru Cummins Service Products.
Last Modified: 11-May-2007
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