Test Wheel - 378046

TEST WHEEL - PART NO. 378046

Factory-listed application: V4S-12.

Johnson 75 HP V4 and V4S-12 test wheel, factory illustration from Service Bulletin SB-738

Johnson Service Bulletin SB-738 (September 16, 1959) identifies this as the 75 HP test wheel and provides test-tank operating precautions.