Contact Triplet Diesel We want to be responsive to your questions or inquires. Please help us by calling or e-mailing. Our Hours Monday – Friday: 8:00am – 5:00pm Saturday – Sunday: Closed Contact Us Your Name (required) Your Email (required) Your Message Δ Triplet Diesel Injection-Waco, Inc. 417 Mill St Waco, Texas 76704 Phone: (254) 753-1114 Phone: (888) 379-6779 Fax: (254) 753-2757 Map