Valve Lock | Cummins ISB / QSB | 3940123 | Cummins B, ISB & QSB
$0.53
In Stock
Replacement Valve Collet for Cummins ® B/ISB/QSB Applications ISB OEM Cross References: 3940123 1 x?Valve Lock -?3940123 ? Fits?Application:?Cummins ISB / QSB ? Details: Valve Collet? ? OE Replacements:?192021,?3940123 ? Cross References: CUMMINS 3940123 Application & Fitment Engine Make: Cummins Engine Model / Application: B/ISB/QSB Confirm the original part number and engine identification before ordering. […]
Categories:
Cylinder Head & PartsSKU:
HDK-M-3940123Brand:
Interstate McbeeReplacement Valve Collet for Cummins ® B/ISB/QSB Applications ISB OEM Cross References: 3940123
1 x?Valve Lock -?3940123
?
Fits?Application:?Cummins ISB / QSB
?
Details:
Valve Collet
?
?
OE Replacements:?192021,?3940123
?
Cross References:
| CUMMINS | 3940123 |
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: 3940123
- Interstate-McBee Reference: M-3940123
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 | 0.015 lbs |
|---|---|
| Dimensions | 3 × 5 × 0.25 in |


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