BMW 2500 Piston Ring Set – Perfect Circle NOS – 42594

Perfect Circle New Old Stock piston ring set, supplied in its original period packaging.

The outer box is hand-marked “2500”, and the storage label identifies BMW E3 / E9 applications. The individual cartons carry reference 42594 and a STD size marking.

Sold individually: one ring set for one piston.

Product details

• Product: Piston ring set

• Brand: Perfect Circle

• Visible packaging reference: 42594

• Size marking: STD — standard size

• Packaging description: 2 in 1 chrome piston ring set

• BMW part number: Not confirmed

• Condition: New Old Stock — unused, with age-related marks

• Quantity supplied: One piston ring set for one piston

• Required quantity: Six piston sets for a complete six-cylinder engine

• Sales unit: One individual piston set

Vehicle compatibility

The existing packaging identifies the intended application as:

• BMW 2500

• BMW E3 / E9, according to the storage label

These markings alone do not confirm compatibility with every E3 or E9 engine.

Before ordering, confirm the cylinder bore, piston groove dimensions, ring thicknesses and required ring profiles against your engine and pistons.

Exact dimensions have not been independently measured. Do not order solely by chassis designation or engine capacity.

Condition

Unused Perfect Circle New Old Stock piston rings in original packaging.

The photographed rings show age-related discolouration, with brown marks and possible surface corrosion. Rust-coloured spotting is also visible on the protective paper.

Only one individual piston set is shown unpacked. The condition and completeness of the remaining boxed sets have not been individually verified.

The rings have not been measured or checked for installation suitability. Inspection of the working surfaces, ring dimensions and clearances is required before use.

The original cartons show storage wear, including discolouration, creasing and worn edges.

Please carefully review all photographs for the condition and packaging.

Included

• One Perfect Circle piston ring set for one piston

• One individual original Perfect Circle carton

The photographs show multiple individual sets and the outer storage box. The price is for one piston set only. The large outer box is not included with an individual purchase.

Storage location: 207