Upper Head Gasket Set | Cummins ISC / QSB Engine | 4089957 / 131880 | Cummins B, ISB & QSB
$423.23
In Stock
Replacement Upper Engine Gasket Set for Cummins ® B/ISB/QSB Applications QSB – Standard Pistons Cross Reference OEM Cross References: 4089957 Product Details 1 x Upper Gasket Set – 4089957 Fits Application: Cummins ISB / QSB Series OE Replacements: 131880, 4089957 Quantity Description Part Number OEM Number 1 O-RING 121244 3913994 1 O-RING 121205 3089240 1 […]
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Gasket SetsSKU:
HDK-131880Brand:
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Replacement Upper Engine Gasket Set for Cummins ® B/ISB/QSB Applications QSB – Standard Pistons Cross Reference OEM Cross References: 4089957
Product Details
1 x Upper Gasket Set – 4089957
Fits Application: Cummins ISB / QSB Series
OE Replacements: 131880, 4089957
| Quantity | Description | Part Number | OEM Number |
| 1 | O-RING | 121244 | 3913994 |
| 1 | O-RING | 121205 | 3089240 |
| 1 | O-RING | 121298 | 3678786 |
| 1 | TURBOCHARGER MOUNTING GASKET | 131813 | 3921926 |
| 1 | EXHAUST OUTLET GASKET | 131879 | 3921961 |
| 1 | INTAKE MANIFOLD COVER GASKET | 131693 | 3947530 |
| 1 | VALVE COVER GASKET | 131691 | 3954324 |
| 1 | THERMOSTAT SEAL | 136095 | 3954829 |
| 1 | O-RING | 121192 | 3957440 |
| 1 | O-RING | 121329 | 3958414 |
| 1 | HEAD GASKET | 131711 | 3958645 |
| 1 | ROCKER HOUSING GASKET | 131692 | 3963379 |
| 1 | O-RING | 121220 | 3990084 |
| 1 | OIL DRAIN GASKET | 131694 | 4931365 |
| 2 | O-RING | 121289 | 3678603 |
| 2 | O-RING | BGA-3008 | 56AX441 |
| 2 | WASHER | 136124 | 3967317 |
| 2 | INLET CONNECTION GASKET | 131511 | 3931604 |
| 3 | O-RING | EGA-3877 | 446GC1225 |
| 3 | SEAL | 136103 | 3963988 |
| 6 | O-RING | 321239 | 3J7354 |
| 6 | COPPER WASHER | 42092 | 3906659 |
| 6 | EXHAUST MANIFOLD GASKET | 131599 | 3946275 |
| 6 | O-RING | 321287 | 8L2777 |
| 6 | O-RING | 121319 | 4890926 |
| 8 | FUEL FITTING SEAL | 136102 | 3963990 |
| 12 | VALVE STEM SEAL | 192108 | 3955393 |
Application & Fitment
- Engine Make: Cummins
- Engine Model / Application: B/ISB/QSB
Confirm the original part number and engine identification before ordering. Where applicable, also verify serial-number range, production year, piston style, bearing size or other configuration notes shown in the product information.
Part Numbers & Cross References
- OEM Cross Reference: 4089957
- Interstate-McBee Reference: M-4089957
Need Help Confirming Fitment?
Use the engine model, serial number and original part number when checking compatibility. For kits and sets, review the complete component breakdown above before ordering because contents can vary by engine configuration.
| Weight | 3.96 lbs |
|---|---|
| Dimensions | 2 × 31 × 14 in |


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