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Woodruff Keys


Crankshaft & Piston Attribute:
1.    Crankshaft Assembly
2.    Piston
3.    Piston Assembly

4.    Piston Rings
5.    Woodruff Keys 4x13.8
6.    Wrist Pin
7.    Wrist Pin Clips

The piston rings placement on the piston is crucial to proper compression and oil distribution.

•    Top Ring if it has writing usually will have a 1 and or a single letter that needs to face visible top. The top ring is usually polished as well.

•    2nd Ring if it has written will usually have 2 and or a letter or pair of letters that need also a face visible top.

•    Expanding Ring is the wavy ring on the inside with the two thin flat smooth Side Rings on the top and bottom. They make a group called the Oil Rings.

•    Gapping the rings in reference to the other rings.  The Mercedes Benz Logo helps to remind of their 120-degree rotational offsets.

High-Quality Woodruff Key Set for crankshaft engines. Clutch-side woodruff key just wedges for positioning for the alternator rotor side of the crankshaft. 

Brand: 101-Octane Part #: BT7001-16
Description: 101-Octane Crankshaft 41.4mm Performance Stroker 16-Teeth for 130QMB 49/50cc 4-stroke engine. Standard stroke 41.4mm. When used in conjunction with a 52.4mm cylinder big bore, total displacement cranks out at a whopping 89.3cc!The crank is pre-pressed with main bearings and a ..
$73.59
Ex Tax:$73.59
Brand: G Part #: 151-122
Description: Woodruff Key for 49cc-50cc 4-stroke 139QMB engines. Standard clutch-side woodruff key for QMB engines. Just wedge for positioning for the alternator rotor side of the crankshaft. Sold individually. Specifications: Include the following woodruff key.•    1x Woodruff Key L: 12.9..
$1.99
Ex Tax:$1.99
Brand: G Part #: 122-80
Description: Woodruff Key for VOG 260 BN169MM Engines commonly found in Linhai 250/260/300 Scooters and many other makes and models.Specifications:Include the following Woodruff key.•    1x Woodruff Key L: 12mm / W: 5 / H: 6mm•    Fit Aprilia 250cc+•    Fit Li..
$1.45
Ex Tax:$1.45
Brand: G Part #: 1100-1213
Description: GY6 woodruff key for 125cc and 150cc GY6 4-stroke engines. Standard clutch-side woodruff key for GY6 engines. Just wedge for positioning for the alternator rotor side of the crankshaft. Sold individually. Specifications:Include the following Woodruff key.•    1x Woodruff Key L..
$3.95
Ex Tax:$3.95
Brand: Naraku Part #: NK100.81
Description: Naraku Crankshaft 41.4mm Heavy-Duty Stroker 16-Teeth for 130QMB 49/50cc 4-stroke engine. Standard stroke 41.4mm. When used in conjunction with a 52.4mm cylinder big bore, total displacement cranks out at a whopping 89.3cc!Naraku crankshaft in OEM-quality to match Japanese and Taiwa..
$151.95
Ex Tax:$151.95
Brand: SSP-G Part #: 169-239
Description: SSP-G Crankshaft 44mm Performance Stroker 16-Teeth (139QMB) increases standard stroke by 2.6mm-more displacement equals more power! When used in conjunction with a 52.4mm cylinder big bore, total displacement cranks out at a whopping 94.9cc! The crank is pre-pressed with main bearings a..
$189.95
Ex Tax:$189.95
Brand: Taida Part #: GY6-KEY
Description: High-Quality Taida Woodruff Key Set for 125cc and 150cc GY6 4-stroke engines. Standard clutch-side woodruff key for GY6 engines. Just wedge for positioning for the alternator rotor side of the crankshaft. Specifications: Includes the following Taida Woodruff keys 2 pieces. •  ..
$7.15
Ex Tax:$7.15
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