Vintage Anco model 45-79 heavy duty pantograph wiper arms 20" FREE SHIPPING
NOS

Fit many older busses, RV's, big trucks.

Possible, not guaranteed partial list:
Hendrickson CCC (1971); 
Oshkosh B Series (Half-Cab) (1982-1976); 
Superior Coach Pacemaker (1978-1976); 
Swinger Squire (1975-1974); 
Ward Body Works Coachette (1980-1979); 
Ward Body Works Patriot (1991-1980)
Many more... do your measurements

Arm and idler arm are 20" long, transmission bolt to pivot joint
Idler arm fits 1/4" idler shaft pin