Add to Cart Peterbilt Radiator Cap F226000 RC1630 Automann MSRP: Now: $12.95 Was: Peterbilt Radiator Cap F226000 *Please verify your OEM number(s) before purchasing. Radiator Pressure Cap Fits Peterbilt Models: 379 387 587 OEM Part Number Cross Reference: F226000 RC1630 Pressure Rating: 16 lbs. Depth: 0... MSRP: Now: $12.95 Was: Add to Cart