Flexible Corrugated Coolant Hose For Onan / Cummins Generator (Tagged 503-075) - New

Flexible corrugated coolant / radiator hose with wire-reinforced body and green stripe, approximately 16 in long with a nominal 1-3/4 in inside diameter (buyer to verify with calipers). Application: shop-tagged by hand as "Onan / Cummins 503-075…", suggesting a Cummins Onan generator set coolant line; the number and application are unverified, so this hose is sold by photographs, identifiers, and dimensions and may fit other diesel engine, genset, or marine cooling applications. Condition: appears new / unused shelf stock — no clamp marks, no coolant staining, no cracking or dry-rot — but there is no original packaging or manufacturer print, and the hose has not been pressure-tested. Inside diameter, overall length, and bend requirements must be matched to your installation. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.