Service Tool 380757

Test Propeller
Part Number 380757

A: 1 3/16 in
B: 1 3/8 in
C: 5 1/4 in
Splined Hub: Yes
Casting Identification: None
Used on: 6 HP 1965-1975

These test propellers are precisely calibrated to provide just the right load on the engine during tank test. A must for determining if the engine is capable of reaching its rated RPM.

Propeller may be obsolete and not be available.
Information is for reference only.

1966 Johnson test wheel application

Johnson Service Bulletin SB-1078 (December 1965) lists this test wheel for: CD(L)-23 (6 HP, minimum 4000 RPM). Factory dealer-net price: $2.50.