The Cummins/Onan QSK19 engine line groups 7 variant designations. Parts and fitment are pooled here so a cross-reference found on one variant surfaces for the whole family.
| Part # | Description | Category |
|---|---|---|
| M-4352582 | Upper Gasket Set | Gasket |
| M-4352587 | Upper Gasket Set | Gasket |
| M-3081837 | Head Bolt – QSK19 | Head bolt |
| 9001-01 | IMPELLER | Impeller |
| 3007525 | (3022157) KIT, LINER LINER, CYLINDER | Service part / kit |
| 3012611 | CYLINDER LINER (O/S) KIT, LINER A/R .020 inch O/S | Service part / kit |
| 3012612 | CYLINDER LINER (O/S) KIT, LINER A/R .030 Inch O/S | Service part / kit |
| 3022157 | Cylinder Liner STD | Service part / kit |
| 3023017 | Cylinder Liner +.010" UPF | Service part / kit |
| 3023018 | Cylinder Liner +.020" UPF | Service part / kit |
| 3023019 | Cylinder Liner +.030" UPF | Service part / kit |
| 3023020 | Cylinder Liner +.040" UPF | Service part / kit |
| 3096680 | Piston STC 13.8:1 Ratio | Service part / kit |
| 3096681 | Piston KT Series 15.5:1 Ratio | Service part / kit |
| 3096682 | Piston KTA Series 14.5:1 Ratio | Service part / kit |
| 3096683 | Piston 13.5:1 Ratio | Service part / kit |
| 3096684 | Piston KTA 15.7:1 Ratio | Service part / kit |
| 3096685 | Piston STC 13.9:1 Ratio | Service part / kit |
| 3628731 | Piston STC Kit | Service part / kit |
| 3630913 | Piston KTA-50-G7 | Service part / kit |
| 3631241 | Piston Kit STC 13.9:1 Ratio | Service part / kit |
| 3631242 | Piston Kit 13.5:1 Ratio | Service part / kit |
| 3631243 | Piston Kit KTA 15.7:1 Ratio | Service part / kit |
| 3631244 | Piston Kit KTA Series 14.5:1 Ratio | Service part / kit |
| 3631245 | Piston Kit KT Series 15.5:1 Ratio | Service part / kit |
| 3631246 | Piston Kit STC 13.8:1 Ratio | Service part / kit |
| 3801268 | CYLINDER LINER (O/S) KIT, LINER A/R .040 Inch O/S | Service part / kit |
| 3801269 | Liner Kit +.040" UPF | Service part / kit |
| 3803530 | Piston Assembly STC | Service part / kit |
| 3804747 | Piston Kit KTA-50-G7 | Service part / kit |
| 3804885 | Piston KTA-50-G8/G9 | Service part / kit |
| 4009220 | Cylinder Liner QSK19/KT19 STD | Service part / kit |
| 4009221 | Cylinder Liner +.020" UPF | Service part / kit |
| 4009222 | Cylinder Liner +.040" UPF | Service part / kit |
| 4009227 | Cylinder Liner KT19 Block Type #2 | Service part / kit |
| 4009233 | Cylinder Liner +.060" UPF | Service part / kit |
| 4024767 | Cylinder Liner Kit QSK19/KT19 STD | Service part / kit |
| 4024768 | Cylinder Liner Kit +.020" UPF | Service part / kit |
| 4024769 | Cylinder Liner Kit +.040" UPF | Service part / kit |
| 4024770 | Cylinder Liner Kit KT19 Block Type #2 | Service part / kit |
| 4024775 | Cylinder Liner Kit +.060" UPF | Service part / kit |
| 4089847 | Piston Kit GTA38/19 | Service part / kit |
| 4090013 | Piston Kit KTA-38-M2 | Service part / kit |
| 4090029 | Piston Kit QSK19CE | Service part / kit |
| 4090181 | Piston GTA38/19 | Service part / kit |
| 4097889 | Piston KTA-38-M2 | Service part / kit |
| 4333987 | Cylinder Liner +.020" / +.020" | Service part / kit |
| 4333988 | Cylinder Liner +.060" / +.020" | Service part / kit |
| 4333989 | Cylinder Liner +.060" / STD | Service part / kit |
| 4333991 | Cylinder Liner QSK19 STD/STD | Service part / kit |
| 4371771 | Cylinder Liner Kit +.020" / +.020" | Service part / kit |
| 4371772 | Cylinder Liner Kit +.060" / +.020" | Service part / kit |
| 4371773 | Cylinder Liner Kit +.060" / STD | Service part / kit |
| 4371779 | Cylinder Liner Kit QSK19 STD/STD | Service part / kit |
| 4910463 | Piston QSK19R/M | Service part / kit |
| 4910465 | Piston QSK Series | Service part / kit |
| 4916177 | Piston GTA/GQSK19 | Service part / kit |
| 4918058 | Piston QSK19CE | Service part / kit |
| 4922319 | Piston QSK19C | Service part / kit |
| 4955233 | Piston Kit QSK19R/M | Service part / kit |
| 4955235 | Piston Kit QSK Series | Service part / kit |
| 4955236 | Piston Kit QSK19C | Service part / kit |
| 4955238 | Piston Kit GTA/GQSK19 | Service part / kit |
| 526-0100 | Washer, Flat (9/16' ID x | Service part / kit |
| 800-0093 | Screw, Hex Head | Service part / kit |
| 800-0094 | Screw, Cap – Hex Head (1/2–13 x 2") | Service part / kit |
| 821-2096-03 | Screw, Flange Head Lock | Service part / kit |
| 821-6003-02 | Screw, Cap - Hex Head (M8 x 1.25 x 25mm) | Service part / kit |
| 851-0023 | Washer | Service part / kit |
| 862-0016 | Nut, Hex | Service part / kit |
| 870-2054 | Nut, Flanged Locking (M6) | Service part / kit |
| A040A357 | Panel, Cover | Service part / kit |
| A040B391 | Busbar, Ground | Service part / kit |
| A040J745 | Bracket | Service part / kit |
| A041A931 | Busbar, Copper | Service part / kit |
| A041Z271 | Panel, Terminal | Service part / kit |
| A042X594 | Busbar, Copper | Service part / kit |
| A043K271 | Box, Circuit Breaker | Service part / kit |
| BER0005 | BEARING | Service part / kit |
| BER0020 | BEARING | Service part / kit |
| CAMSET0019 | CAM LINER(BRONZE) | Service part / kit |
| JSK0069 | SERVICE KIT | Service part / kit |
| QSK19 | Fuel System | Service part / kit |
| SHA0088 | SHAFT | Service part / kit |
| 4308809 | Flat Seal for Cylinder Liner | Seal |
| 4333984 | D-Type Seal Liner | Seal |
| 4371769 | Seal Kit | Seal |
| 4371770 | D-Type Seal Kit | Seal |
| MCSSET0006 | M-SEAL | Seal |
| 338-4386 | Harness, Meter | Wiring |
| A029G375 | Harness, Relay | Wiring |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.