The VintCo KR2036 connecting rod kit is a newly manufactured replacement assembly for 1974-75 Bultaco 350cc and 360cc dirt bikes, including specified Alpina, Sherpa T, Astro, Fronetra and Pursang models, with a nominal 20 x 56 mm crank pin. It is intended for crankshaft rebuilds without replacing the complete crankshaft and is manufactured from heavy-duty forged steel using modern production methods for fitment and performance comparable to OEM. The kit includes one connecting rod, one solid crank pin, one big end bearing, one wrist pin bearing and two thrust washers. Dimensional reference information is available from the manufacturer with images.
Features
Replacement connecting rod kit for vintage Bultaco 350cc and 360cc 1974-75 dirt bikes
Suitable for crankshaft rebuilds without replacing the full crankshaft
Fits specified Alpina, Sherpa T, Astro, Fronetra and Pursang models
Manufactured using modern materials and manufacturing techniques
Includes connecting rod, crank pin, big end bearing, wrist pin bearing and thrust washers
Specifications
VintCo Part Number: KR2036
Product Type: Connecting rod kit
Connecting Rod Material: Heavy-duty forged steel
Connecting Rod Centre-to-Centre Length: 116 mm
Crank Pin Type: Solid
Crank Pin Dimensions: 20 x 56.1 mm
Big End Bearing Dimensions: 20 x 26 x 16.8 mm
Wrist Pin Bearing Dimensions: 20 x 24 x 18.8 mm
Thrust Washer Dimensions: 20.2 x 34.7 x 1.5 mm
Quantity Included: 1 connecting rod
Quantity Included: 1 crank pin
Quantity Included: 1 big end bearing
Quantity Included: 1 wrist pin bearing
Quantity Included: 2 thrust washers
Vehicle Fitments
1974 Bultaco 350
1975 Bultaco 350
1974 Bultaco 360
1975 Bultaco 360
1974 Bultaco 350 Alpina, model 116
1975 Bultaco 350 Alpina, model 138
1974 Bultaco 350 Sherpa T, model 125
1975 Bultaco 350 Sherpa T, model 151
1974 Bultaco 360 Astro, model 123
1975 Bultaco 360 Fronetra, model 143, with 20 mm crank pin
1974 Bultaco 360 Pursang, model 121
1975 Bultaco 360 Pursang, model 136, with 20 mm crank pin