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742
Oil Line Fittings for ³⁄₈” hose. Thread is 
1
/
8
” NPT.
Chrome Zinc 
OEM  
Type  
  U/M
40-0566 40-0635  63533-41  Straight, Replica 
  5
2070-1   
As Above   
  Each
40-0521 40-0637  Barbed 
Straight 
 5
40-0519  
26496-75B 90 degree angle 
  5
Chrome Male Fittings for gas and oil measured in NPT 
thread and inner diameter of line.
A-Straight  B-90°  
Size
40-0525  
40-0532 
¹⁄₈
” NPT - ⁵⁄₁₆” Hose
40-0526  
40-0529 
¹⁄₈
” NPT - ¹⁄₄” Hose
40-0566  
40-0519 
¹⁄₈
” NPT - ³⁄₈” Hose
40-0527  
40-0530 
¹⁄₄
” NPT - ⁵⁄₁₆” Hose
Chrome Male Female Fittings.
VT No.   # 
Type/Size
40-9990 C  45° 
¹⁄₈
” NPT - ¹⁄₈” NPT, Street Elbow
12-1416 D  90° 
¹⁄₈
” NPT - ¹⁄₈ NPT
12-1419 E  Straight 
¹⁄₈
” NPT - ¹⁄₈” NPT
Male Plugs.
VT No. 
 Size
23-0611 F  ¹⁄₈” NPT, Chrome
40-0531  F  ¹⁄₄” NPT, Chrome
37-8777 G  ¹⁄₈” NPT Hex Socket Plug, Plain
40-0609 H  ¹⁄₄” to ¹⁄₈”
 
NPT
Oil Fittings for Big Twin. 
VT No.   #  OEM    
Item
40-0566  F  63533-41 Straight
12-1412   A  63533-65  
Oiler Return 
40-9982   B  63541-70 
Oiler T, Rear Chain
40-0579  E  Chrome  
As Above
40-0552  F  26314-99 
Straight 1999-up
17-0519 E  62375-57 
Elbow
40-0553 E  63554-90 
Elbow
Oil Vent “T” fits 71-84 Big Twin.
VT No. 40-0559
40-0566
40-0519
40-0521
Oil Line Fitting
Magnetic Drain Plugs prevent metal particles from circulating 
through engine and transmission cases and oil tank.
VT No.  OEM 
Size 
  Use
37-0096 707 
¹⁄₂
” - 13    74 and XL Transmission
37-0097 700 
³⁄₈
” - 24    Big Twin Case Plug 74 & 80
37-0095 60348-65A  ¹⁄₂” - 20    74 & 80 Inner Primary
37-0098 720, 706A  ⁵⁄₈” - 18    Oil Tank and Timing Hole
37-0099 739A 
¹⁄₈
” - 27    NPT 1990-up BT Trans
37-8961 718 
¹⁄₄
” - 18    NPT Chain Cover
Banjo Bolts and Washers.
VT No.   OEM 
Item
40-0518  63678-36 
Vent Line Banjo Bolt
40-0670  63577-36 
Vent Banjo Fitting
14-0154  6440 
Washer, Vent Lines, 10 pack
40-0156  3520-36A  Bolt, Feed and Return, each
40-0157  3570-36B  Washer, Feed, 10 pack 
Oil Tank Drain Plug in stock chrome, cadmium 
or parkerized finish.
VT No.  Finish 
 
 
Type
8114-1  Chrome    
 
Stock
8115-1 Cadmium   
 
Stock
9404-1 Cadmium   
 
Oversize
9304-1 Chrome   
 
Oversize
9714-1  Parkerized  
 
Oversize
9502-1  Chrome 1939-51 
 
Stock
9504-1  Parkerized as above, ⁷⁄₈” Hex  Stock
9503-1  As above cadmium   
Stock
37-9067 Washer 
 
 
25  pack
Cadmium Oil Nipple Cap replaces 3583-15 to cap oil 
fitting during storage. Pack of 6.
VT No. 9808-6
Drain Plug Washer for use on 1952-up brass 
crush-seal factory type. Replaces 62702-52. 
(10 pack).
 VT No. 15-0194
Nipple Nuts and Tube Ends will attach to tapered tank 
63533-15 type fittings and will accept braid or rubber hose. 
Available straight, 90° or 45°, with chrome finish.
VT No.   #  Item
40-9975 
   
Nut, 3 pack
40-9992   A  Straight Tube, with nut
40-9993  B  90° Elbow, with nut
40-9994  C  45° Elbow, with nut
40-0514  D Fittings
37-0095
40-0514
40-0609 H
B
C
40-9975
A
Oil Line and Vent Line Fittings replace 
type used on 1936-64 Big Twins. For braid-
ed stainless steel or stock rigid steel oil 
lines, three pieces.
VT No. 
Type
7612-3  Cadmium
7148-3  Chrome
40-0514 Chrome
40-0297 Zinc
7612-3
40-0635
40-0637
Rear Chain Oiler Fitting fits 1941-
69 FL, zinc. Fitting is positioned 
between the oil pressure gauge and 
oil pump fitting. 
VT No. 12-1280
Cadmium
Chrome