1991 Peterbilt 377 A/C Chemicals
- Supercool®Performance EnhancerPeterbilt 377 1991, Performance Enhancer by Supercool®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured...Compatible with R134a and HFO-1234yf air conditioning systemsWill not harm A/C sytem or components$4.80