Replacement Aftercooler Gasket Set for Caterpillar ® 3508/3512/3516 Applications G3512/G3516 – ESN: 2JF, 3RC, 4EK, 4KC, 4WD, 5JD, 7NJ, 8LD, 9TG – Aftercooler & Lines Cross Reference OEM Cross References: 9X6591

Aftercooler Gasket Part # 9X6591 Serial # 2JF – 3RC – 4EK – 4KC – 4WD – 5JD – 7NJ – 8LD – 9TG Application # G3512-G3516

Application & Fitment

• Engine Make: Caterpillar
• Engine Model / Application: 3508/3512/3516

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: 9X6591
• Interstate-McBee Reference: M-9X6591

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.