Replacement O-Ring Seal for Cummins ® ISX/QSX Applications Included in M-4090022 OEM Cross References: 3678724

Product Details

1 x Water Pump O-Ring

Note: Included in M-4090022

Model: Cummins ISX / QSX Engine | 3678724

Details:

O-Ring
0.118 in C/S x 2.598 In I.D.
3 mm C/S x 66 mm I.D.
EPDM (75) Peroxide Cured

Product Description:

1x Water Pump O-Ring

OE Replacements: 121316, 3678724

Cross References:

Application & Fitment

• Engine Make: Cummins
• Engine Model / Application: ISX/QSX

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: 3678724
• Interstate-McBee Reference: M-3678724

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.