The Con Rod, Big End Journal to fit JAP engines is a genuine JAP part engineered for reliable service in classic powerplants. Manufactured from robust metal and precision-machined, it links the piston to the crankshaft via the big end, transferring combustion force while maintaining correct running clearances. This component suits restoration and maintenance of vintage JAP stationary engines commonly used in small plant and machinery, with precise compatibility for models such as JAP 3 and JAP 4. Supplied as vintage unused old stock, it may show light tarnishing from storage that does not affect function. Identified by Manufacturer Part Number E7579, this genuine replacement helps restore smooth, consistent operation in period engines where the original connecting rod big end has worn or failed.

Key Features:
– Genuine JAP part for OEM fit and function (MPN: E7579)
– Designed for JAP big end journal geometry on 3, 4, 5, and 6 series engines
– Durable metal construction for long service life in vintage applications
– Precision-machined surfaces to support correct oil film and bearing fit at the big end
– Helps maintain crank-to-piston alignment to reduce knock and vibration
– Direct replacement component to aid straightforward rebuilds with minimal setup
– Suitable for restoration projects and routine overhauls of classic JAP engines
– Vintage unused old stock; cosmetic tarnish from age may be present but is normal

Typical Applications:
Used during engine rebuilds or repairs of vintage JAP stationary engines found in small plant, agricultural equipment, and general-purpose machinery. Ideal where the original con-rod big end is worn, ovalised, or damaged, to restore smooth rotation, maintain oil clearance, and support dependable running under regular working loads.

Also known as:
Con-rod, conrod, big-end rod, big-end journal rod, crankshaft connecting rod, big-end component, rod big end, big-end journal assembly.

Fits Models:
JAP 3
JAP 4
JAP 5
JAP 6

Alternate Part Numbers:
E7579

Product Specifications