Crankshaft key (Woodruff key) 4x14

Crankshaft key 4 × 14 mm – a segment key, also called a half-moon key or a Woodruff key: a steel part with a flat top edge. It fits into the shaft's keyway and holds the flywheel so it cannot turn on the shaft.

• The name has only two numbers – 4 and 14; every other item in this category has three: thickness, height and length
• The bottom is curved to match the shaft's keyway, the top is flat – the same profile is visible in every photo in this category
• A worn key can be recognised by a rubbed side and rounded edges – that already lets the flywheel shift on the shaft, and with it the ignition timing drifts
• In the photo the key is shot from above, flat side to the camera – so you can see the whole arc
• The same category has 4 × 5 × 13 mm and 4 × 7,5 × 19 mm keys – also 4 mm thick, but with three numbers in the name
• You will find crankshafts and the gudgeon pin needle bearing in the same category
• Supplier code WI ZQ0009 SS 01380071 – quote it again when you order

We write only what we know. Which dimension is the 4 and which is the 14, the maker did not say, and we do not guess – we are asking them. The supplier calls this part a split pin, but the photo does not show a split pin, but a segment key; these are different parts, so we are checking the name with the maker. Before ordering, measure your old key or the shaft's keyway – thickness, height and length – and send us a photo; we will check it before you order.

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