# Knox Buys #00003781

Mack diesel truck diagnostics and engine repair services

**Posted:** November 05, 2026
**Respond By:** December 10, 2026
**Identifier:** 00003781
**NAICS:** 811118, 811113

Knox County is seeking qualified providers for diagnostics and engine repair on its Mack diesel trucks.
- **Government buyer:** Knox County Government, Procurement Division, for the Engineering & Public Works Department, Tennessee.
- **OEM:** **Mack** is the named truck and engine OEM; no specific service vendor is named.
- **Services requested:** Mack truck diagnostics, diesel engine repair, diagnostic and mechanical labor, and electronic programming/calibration capabilities.
  - Required capabilities include flashing and reprogramming engines, transmissions, and body control modules; calibrating DPF and ACM after-treatment systems; and programming M-Drive and transmission control modules.
- **Engine configurations priced:** 10.8L 6-cylinder diesel, MP7-405M Diesel, MP8-445C, and MP8-415C. No quantities are guaranteed for these configurations.
- **Provider requirements:** Medium/heavy truck ASE-certified and Mack/Volvo factory-trained technicians, with service facilities within 50 miles of the Knox County Fleet Service Center.
- **Term:** One-year initial term, with up to four additional one-year extensions by mutual agreement; maximum five years.
- **Commercial details:** The initial solicitation lists one service line item, but the attachment states that no quantities are guaranteed.

### Description

Knox County is soliciting sealed bids for Mack diesel diagnostics and engine repair services. Bids must be submitted by hand or commercial carrier; electronic submissions are not accepted. The bid deadline is December 10, 2026, at 2:00 p.m. local time. The stated contract period is February 1, 2027, through January 31, 2028.

[View original listing](https://knoxbuys.buyspeed.com/bso/external/bidDetail.sda?docId=00003781&external=true&parentUrl=close)