Fortpro Insulator Box Compatible with Mack 4" Spring SS34/38, SWS573, SS44/SWS57, SS50 Camelback & SW/SWW Series Suspensions Replaces 52QK418BP4 | F174038 push-pull valves Measure: 6"

Measure: 6"

which prolongs the life of the engine and improves its power

Compression Piston Ring pcs x 1

Stamped Impeller

Fortpro Insulator Box Compatible with Mack 4" Spring SS34/38, SWS573, SS44/SWS57, SS50 Camelback & SW/SWW Series Suspensions Replaces 52QK418BP4 | F174038 push-pull valves Measure: 6"Revamp your Mack truck's heavy duty suspension with Fortpro's cutting edge Insulator Box! Engineered to perfection for compatibility with Mack 4" Spring SS34 38, SWS573, SS44 SWS57, SS50 Camelback, and SW SWW Series Suspensions, this Insulator Box, replacing OEM part 52QK418BP4, is more than an upgrade it's a promise of superior functionality and extended longevity in critical suspension components. Don't settle for the ordinary choose Fortpro for a