Upper Gasket Set | Cummins ISB 5.9L Engine | 4089263 | Cummins B, ISB & QSB
$431.68
In Stock
Replacement Upper Engine Gasket Set for Cummins ® B/ISB/QSB Applications ISB – Standard Pistons Cross Reference OEM Cross References: 4089263 Product Details 1 x Upper Gasket Set – 4089263 Application: Cummins ISB /QSB Series Details: Upper Gasket Kit EGR Valve Product Description: Consists Of: Part Number OEM Number Description Qty 121255 3066211 O-RING 1 121214 […]
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Gasket SetsSKU:
HDK-M-4089263Brand:
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Replacement Upper Engine Gasket Set for Cummins ® B/ISB/QSB Applications ISB – Standard Pistons Cross Reference OEM Cross References: 4089263
Product Details
1 x Upper Gasket Set – 4089263
Application: Cummins ISB /QSB Series
Details: Upper Gasket Kit EGR Valve
Product Description:
| Consists Of: | |||
| Part Number | OEM Number | Description | Qty |
| 121255 | 3066211 | O-RING | 1 |
| 121214 | 131026 | O-RING | 6 |
| 121289 | 3678603 | O-RING | 1 |
| 121264 | 3883284 | O-RING | 1 |
| 121258 | 3906698 | O-RING | 1 |
| 136071 | 3920773 | WASHER | 1 |
| 321239 | 3J7354 | O-RING | 1 |
| 321249 | 6J2245 | O-RING | 2 |
| 042092 | 3906659 | COPPER WASHER | 6 |
| 131693 | 3947530 | INTAKE MANIFOLD COVER GASKET | 1 |
| 131732 | 3949417 | EGR VALVE GASKET | 1 |
| 131603 | 3919369 | TURBOCHARGER GASKET | 1 |
| 131733 | 3949910 | BREATHER GASKET | 4 |
| 121355 | 3949916 | RECTANGULAR SEALING RING | 1 |
| 131691 | 3954324 | VALVE COVER GASKET | 1 |
| 136095 | 3954829 | THERMOSTAT SEAL | 1 |
| 131725 | 3955339 | EXHAUST MANIFOLD GASKET | 6 |
| 121331 | 3957131 | O-RING | 2 |
| 121329 | 3958414 | O-RING | 2 |
| 131711 | 3958645 | HEAD GASKET | 1 |
| 131692 | 3963379 | ROCKER HOUSING GASKET | 1 |
| 136102 | 3963990 | FUEL FITTING SEAL | 21 |
| 136103 | 3963988 | SEAL | 11 |
| 121220 | 3990084 | O-RING | 1 |
| 121210 | 3678912 | O-RING | 1 |
| 321287 | 8L2777 | O-RING | 6 |
| 121319 | 4890926 | O-RING | 6 |
| 131694 | 4931365 | OIL DRAIN GASKET | 1 |
| 042017 | 4933628 | LOCK | 4 |
| 136101 | 3918190 | FUEL FITTING SEAL | 10 |
| 131738 | 3955457 | ACCESSORY DRIVE GASKET | 1 |
| 131511 | 3931604 | INLET CONNECTION GASKET | 2 |
| 192108 | 3955393 | VALVE STEM SEAL | 12 |
| 192109 | 3955394 | VALVE STEM SEAL | 12 |
| 042025 | 3823921 | CAPSCREW LENGTH GAUGE | 1 |
OE Replacements: 131734, 4089263
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: 4089263
- Interstate-McBee Reference: M-4089263
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 | 4.77 lbs |
|---|---|
| Dimensions | 2 × 38 × 13 in |


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