Check the listing for details. Pro Trucking Products 374980 Single Piston Hydrovac Brake Booster, New, No Core. Condition: New. Listed at 845.00 USD. Single Piston Hydrovac Brake BoosterProduct Details:Direct Replacement For Bendix 374980 Diameter: 9-1/2"Overall Length: 17-5/16"Input: 1/2"- 20 ThreadOutput: 1/2"- 20 ThreadAir Cleaner: 3/4"Vacuum Supply: 1/2" NPTCross References: 600-374980, 374980, 374980X, RV374980X, RV374980X-MD, 373853, 374980, 375698, 377215, 51-8056, HDX RV374980X, MID RV374980X, 5396-RV374980X, MIDRV374980X, MBIRV374980X, ZZRV374980X, 767653094762Shipping: Items purchased by 12:00 pm Central time Monday through Friday typically ship same day. Orders placed after 12:00 pm may ship the next business day Thanks For Looking!Single Piston Hydrovac Brake BoosterProduct Details:Direct Replacement For Bendix 374980 Diameter: 9-1/2"Overall Length: 17-5/16"Input: 1/2"- 20 ThreadOutput: 1/2"- 20 ThreadAir Cleaner: 3/4"Vacuum Supply: 1/2" NPTCross References: 600-374980, 374980, 374980X, RV374980X, RV374980X-MD, 373853, 374980, 375698, 377215, 51-8056, HDX RV374980X, MID RV374980X, 5396-RV374980X, MIDRV374980X, MBIRV374980X, ZZRV374980X, 767653094762Shipping: Items purchased by 12:00 pm Central time Monday through Friday typically ship same day. Orders placed after 12:00 pm may ship the next business day Thanks For Looking!