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Set of piston rings

BMW Isetta engine

Set of piston rings Zoom

Set of piston rings

€39.90

incl. 19% VAT plus shipping

69,5 mm
Technical data
Category
BMW Isetta engine
Item number
1-0503
Condition
Not specified – on request
Unit
???
Weight
0.1 kg
Availability on request

No instant purchase: after your request you will receive a personal quote including shipping costs.

Philipp Schäper
Philipp Schäper BMW Isetta specialist Question about this item?
In stock Almost all parts available directly from stock
Original parts Original parts from workshop inventory
Specialists The specialists for BMW Isetta, 600 & 700
Worldwide shipping By DHL, UPS or freight forwarder — safely packed
Application

Piston rings form the movable seal between the piston and the cylinder wall, ensuring compression and preventing excessive oil from entering the combustion chamber.

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General information about this item

Product info
The 69.5 mm, 4-piece piston ring set (Part No. 1-0503) is designed for BMW Isetta engines with heavily bored-out cylinders and restores the necessary compression and oil control following a comprehensive engine overhaul. Replacing worn rings significantly reduces typical problems such as oil mist, loss of power, and poor starting performance. Precise oversize adjustment, correct end play, and a proper break-in procedure are crucial for long-term operation in a restored engine.

Database ID: 538 Accessed on: 17.06.2026 01:38 Data state: 22.05.2026 12:33 In stock since: 18.11.2025