FL913 4ring diesel engine parts piston kit set assy for deutz piston set 0223 6679

This DEUTZ FL913 piston assembly is engineered for the naturally aspirated 5.7L air-cooled diesel engine without turbocharger. The kit includes one aluminum piston (eutectic alloy), a complete ring pack consisting of two compression rings and one three-piece oil control ring, a hardened steel wrist pin, and two retaining circlips. The piston crown features a shallow re-entrant bowl designed for the FL913's direct injection swirl pattern — distinct from the deeper bowl used in BFL913 turbo pistons. Applications include DEUTZ FL913 engines in Same Explorer tractors, Fendt Farmer 300 series, Kramer loaders, and generator sets up to 60kVA. OEM reference numbers: 04123238 (standard), 04123239 (+0.25), 04123240 (+0.50). The top compression ring is nitride-coated for break-in resistance, while the second ring is a tapered cast iron design to minimize oil migration. No need to source pins or circlips separately. Each piston is skirt-coated with a dry-film lubricant to prevent galling during initial start-up. Available for immediate shipment from our China logistics hub. Please verify your engine's cylinder bore wear limit before selecting oversize.