Replacement Cylinder Head Gasket Set for Caterpillar ® Applications 3512B Truck – Marine – ESN: 1GZ, 1PW, 4AW, 4TN, 6WN, 7HM, 8BR, 8EM, 8RM OEM Cross References: 2320663 Superseded/Alternate Numbers: M-1300143, M-1644425

Cylinder Head Gasket Part # 2320663 Serial # 1GZ – 1PW – 4AW – 4TN – 6WN – 7HM – 8BR – 8EM – 8RM Application # 3512B Truck – Marine

Application & Fitment

• Engine Make: Caterpillar

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: 2320663
• Alternate / Superseded: M-1300143, M-1644425
• Interstate-McBee Reference: M-2320663

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.