This is the smaller of the two simplex gears and sits on the crankshaft. For all A & A+ series engines that had a single row timing chain, known as simplex, as standard fitting. The exception being the Cooper S, early 1275 GT Mini and Austin 1300 GT models.

Related simplex products:

• Cam sprocket 12G4337
• Simplex  single row chain 3H2127
• Tensioner strip 12G2621
• Tensioner rings (Early) 8G549

Related duplex timing products:

• Cam sprockett 12G1397
• Crankshaft sprocket 12G1699
• Duplex dual row chain 2H4905
• Countersunk screw for front plate AEA687

Other timing products:

• Kent vernier adjustable timing kit S12
• Dayco Belt for all belt drive kits MRA-05-0090
• Timing cover gasket for A series 12A956B
• Timing cover gasket for A+ series 12G2625
• Timing cover seal early up to 1992 88G561
• Timing cover seal late from 1992 LUF10006
• Woodruff keys 1 to 9 degrees

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