Outer coupling is CAT part number 2449171 (Centamax 12000 or 18000). Inner coupling is CAT part number 2431512 (Centamax 18000 only).
When you choose Worldwide Power Products, you're getting more than just quality equipment - you're getting quality new and used generators and engines when you need it, wherever you are, with prompt, personalized service. With millions of dollars of handpicked power generation equipment in stock, we pride ourselves on having what you need, so you can power on.