MM-MAR08050701 - Maruha Motors crankshafts


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Part #: MM-MAR08050701
Notes: PLUS SHIPPING.
THIS ITEM IS A SPECIAL ORDER FROM JAPAN.
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Your Price: $3,181.81

Specs

CRANKPIN DIA. 48mm

All Fitments

MAZDA
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
1994 - 2005 MIATA ALL ALL ALL ALL ALL ALL FOR 2.1L

Product Description

Maruha’s crankshaft, made from finely machined alloy steel (chrome molybdenum 4340 steel), have 89.0mm longer stroke that provides a vehicle with more torque. Furthermore, the crankpin diameter of 48.0mm is designed 3.0mm larger than the standard ones.

It can provide the crankshaft with more durability by enlarging the overlapped area between the crankpin and the journal. The full counterweight design makes for a perfect balance and allows bolt-on installation for the engine block.

A crankshaft requires continuous oil supply. Maruha designs the crankshaft main journal with the two chambered oil holes.

When Maruha power metal main & rod bearings are used together, their oil holes designed in the center will allow smooth oil flow into the crankpin at each crankshaft revolution.

Miata with B6 and BP engines have generally less strength at the connection between the crankshaft snout and the pulley boss because they do not have length to be sufficiently overlapped.

Extensive R&D has been done to develop Maruha crankshaft, whose snout is enlarged to retain enough connection to the pulley boss.

Our design can enhance the durability of the pulley boss and also can avoid product damages in severe driving conditions.