For sale: Original Caterpillar CAT C18 Engine Computer Part Number: 286-3792 Electronic Control Module (ECM) for Caterpillar C18 engines, used in generators, pumps, and heavy equipment. Original part in good condition, suitable for replacement or as a spare part. ✔ Original CAT ✔ Made in Mexico ✔ Ready for inspection and viewing ✔ Suitable for generators and heavy equipment Shipping available