1998 Western Star 4900 A/C Chemicals
- Supercool®Performance EnhancerWestern Star 4900 / 4900E 11.1L / 12.7L 1998, 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...Compatible with R134a and HFO-1234yf air conditioning systemsWill not harm A/C sytem or components$4.80