the original hose with the hump was called a hump hose
2 5/8" ID, LENGTH 9.375 INCHES MINIMUM AND 9.625 INCHES MAXIMUM
here are the specs of the original hoses
NSN
4720-00-350-2737
HOSE,PREFORMED
MRC Parameter Characteristics
STYL STYLE DESIGNATOR CENTER HUMP
AARX INSIDE DIAMETER 2.625 INCHES NOMINAL
AAGT WALL THICKNESS 0.156 INCHES NOMINAL
BFSD REINFORCEMENT MATERIAL FABRIC
CBZW BULGE WIDTH 0.719 INCHES NOMINAL
WKLG WORKING LENGTH 9.375 INCHES MINIMUM AND 9.625 INCHES MAXIMUM
ABKV OUTSIDE DIAMETER 3.938 INCHES NOMINAL
ZZZV FSC APPLICATION DATA AIR CLEANER,ENGINE,NONAIRCRAFT
Manufacturers
Part # Manufacturer
N12204 DIAMOND REO TRUCK CO
C85550 U S ARMY TANK AUTOMOTIVE COMMAND
6W4302 autocar and VOLVO TRUCKS NORTH AMERICA INC.
379065 WHITE MOTOR CORP
here is a straight hose that will work
mcmaster number 5285K158
http://www.mcmaster.com/#5285k158/=sbmjyh
