Crankshaft key (Woodruff key) 4x5x13

Crankshaft key 4 × 5 × 13 mm — a segment key, also called a half-moon key or Woodruff key: a steel part with a flat top edge. It fits into the shaft groove and holds the flywheel so it cannot turn on the shaft.

• Three numbers in the name — thickness 4 mm, height 5 mm and length 13 mm; that is the order used in this category's manufacturer's drawing
• The bottom is curved to match the shaft groove, the top is flat — the same profile is seen in every photo in this category
• You can tell a worn key by a rubbed-down side and rounded edges — a key like that already lets the flywheel shift on the shaft, and the ignition timing drifts along with it
• The same category has 3 × 2,4 × 13 mm and 3 × 2,5 × 13 mm keys — the same 13 mm length, but thinner and noticeably lower
• You will find crankshafts and the gudgeon pin's needle bearing in the same category
• Supplier code SS 01380096 — state it again when ordering

We write only what we know. The supplier calls this part a split pin, but the photo does not show a split pin — it shows a segment key; these are different parts, so we are confirming the name with the manufacturer. Before ordering, measure the old key or the shaft groove — thickness, height and length — and send us a photo; we will check it before you order.

24-month warranty · tel. +370 685 777 56