PRODUCT FEATURES Replacement pressure switch for 5800 & 7870 (FatBoy) pumps. After installation an adjustment with a 1/16" allen wrench will be necessary. Reviews Featured Products Replacement Pressure Switch 3300 Series Pumps $19.58 Add to Cart Remco Replacement Relay For The Fat Boy 12 Volt Pump $16.34 Add to Cart Replacement Outside Housing For 5800 And Fatboy Pumps $46.00 Add to Cart Replacement Micro Switch For PA Pressure Switch $13.59 Add to Cart