Page 25 - Classic
P. 25
Breather Gear
12-1510 Stock Plastic Breather Valves. 12-0788 12-1537
VT No. OEM Year
12-1531 25310-82A L1977-99
12-1953 As Above .005 Oversize
12-1531 C-Breather Valve Thrust Washer 12-9967
Set for 1950-99 Big Twin includes A-Big Twin Steel Breather Valve is a machined breather
one of each size noted. valve and gear. Designed to replace the stock steel or plastic
VT No. Fits Set units. Order 8-piece thrust washers separately. Available in
12-1510 1979-82 8 Steel stock duration only with either standard or +.030 oversize out-
Breather Valve .110, .115, .120, .125 side dimension.
Thrust Washer Set .130, .135, .140, .145 VT No. Year Size Brand
for 1950-78 Big Twin. 12-1530 1982-99 8 Plastic 12-0788 1936-47 Standard Sifton
Made of steel, one of .130, .135, .140, .145 12-0786 1936-47 +.030 Sifton
each of the following: .150, .155, .160, .165 12-9967 1936-47 Standard S & S
110, .115, .120, .125 12-9968 1936-47 +.030 S & S
VT No. 12-1509 12-9907* 1948-77 Standard S & S 12-9907
12-1536** 1948-77 Standard Sifton
12-1945 12-1945 Sifton Air Ramp fits S&S/ 12-1561* 1948-77 Standard Sifton
Installed Sifton Breather Gear on 1936- 12-9956* 1948-77 +.030 S & S C 12-1509 CLASSIC
S & S
12-9906* 1978-99 Standard
99 models to remove more 12-1537* 1978-99 Standard Sifton
air and oil from crankcase. 12-9957* 1978-99 +.030 S & S
Requires removal of screen for 12-9909 All Washer Set S & S
installation. Gear not included. 12-1510 All Washer Set Sifton
VT No. 12-1945 *Note: Requires use of late style thrust washer 12-1510 or
Ball Bearings 12-9909.
**Note: Includes thrust washer set 12-1510
12-0172 12-0164 12-0129 12-0157 Oil Pump Drive Gear Set fits 1973-84
FL-FX.
VT No. 12-1546
12-1496
VT No. OEM Size Use/Fits
12-0172 8854 ³⁄₁₆” 1948-52 Hydraulic Unit
12-0161 8856 ⁷⁄₃₂” Clutch Hub,1941-54 All
12-0164 8858 ¹⁄₄” Oil Filler, 1948-64 12-1496
12-0158 8866 ³⁄₈” Check valve,1941-up FL-
FLH,Classic, 1971-up all FX, Sifton High Flow Pinion Shaft Oil Pump Drive Gear for
1939-53 OHV Big Twins. 6 Tooth gear increases oil flow rate
1954-up all XL
12-0129 ³⁄₈” Nylon Ball Bearings by approximately 25%. Requires use of late style (OEM#
12-0156 8872 ¹⁄₂” Shifter Cam Plunger 26345-73 VT No. 12-1407) oil pump drive shaft gear. Also
available as a kit that includes correct drive shaft gear.
1941-76 with Handshift
12-0157 8860 ⁵⁄₁₆” Clutch Ramp Assembly VT No. Item
12-1496 Pinion Shaft Gear only
Steering Head
1971-83 All XL, 1954-78 All XL 12-1505 Kit
Breather Parts
12-0102 12-9908
Cap and Collar
have been
12-0101 pressed together
Big Twin Pinion Part Kit is complete with proper parts. Primary Breather Tubes for Big Twin models.
VT No. Fits Kit VT No. # OEM Years Item
1936-38 Tube
49-1743 543-36
12-0101 1936-53 Five Piece Kit 12-1514 A 24912-48 1948-57 Tube
12-0102 1955-69 Four Piece Kit 12-1448 A 29411-36 1936-47 Tube
12-0103 1937-53 WL Two Piece Kit 12-0997 A&B 1936-47 Kit
Pinion Shaft Seal Ring is used on all 1940-53 Over Head 12-1528 B 24918-64 1936-57 Snoot
Valve Big Twins, sold each. Replaces 24697-40. 12-9908* C Kit 1958-64 All
VT No. 12-1525 12-1513 D 24918-58 1958-64 Rubber Nipple
12-1517 Breather Screens and Separator fits 1936-69 Big 12-9775 Breather Spacer & Washer Set
Twin, sold in packs of 5. 12-9753 24922-58 Breather Collar
VT No. OEM Item 40-0547 E 24912-65 1965-66 Tube with Nut
Tube with Nut
1967
40-0548 F
24913-67
12-1518 12-1517 25275-36 Screen 12-1191 24914-58 1958-64 Stud Only
12-1518 25279-36 Separator *Note: Includes 24925-58 spacer, 24914-58 stud, (24922-58
collar, 24923-58 cap Note: cap and collar have been pressed
together) and 24918-58 rubber ripple. 493
12-1510 Stock Plastic Breather Valves. 12-0788 12-1537
VT No. OEM Year
12-1531 25310-82A L1977-99
12-1953 As Above .005 Oversize
12-1531 C-Breather Valve Thrust Washer 12-9967
Set for 1950-99 Big Twin includes A-Big Twin Steel Breather Valve is a machined breather
one of each size noted. valve and gear. Designed to replace the stock steel or plastic
VT No. Fits Set units. Order 8-piece thrust washers separately. Available in
12-1510 1979-82 8 Steel stock duration only with either standard or +.030 oversize out-
Breather Valve .110, .115, .120, .125 side dimension.
Thrust Washer Set .130, .135, .140, .145 VT No. Year Size Brand
for 1950-78 Big Twin. 12-1530 1982-99 8 Plastic 12-0788 1936-47 Standard Sifton
Made of steel, one of .130, .135, .140, .145 12-0786 1936-47 +.030 Sifton
each of the following: .150, .155, .160, .165 12-9967 1936-47 Standard S & S
110, .115, .120, .125 12-9968 1936-47 +.030 S & S
VT No. 12-1509 12-9907* 1948-77 Standard S & S 12-9907
12-1536** 1948-77 Standard Sifton
12-1945 12-1945 Sifton Air Ramp fits S&S/ 12-1561* 1948-77 Standard Sifton
Installed Sifton Breather Gear on 1936- 12-9956* 1948-77 +.030 S & S C 12-1509 CLASSIC
S & S
12-9906* 1978-99 Standard
99 models to remove more 12-1537* 1978-99 Standard Sifton
air and oil from crankcase. 12-9957* 1978-99 +.030 S & S
Requires removal of screen for 12-9909 All Washer Set S & S
installation. Gear not included. 12-1510 All Washer Set Sifton
VT No. 12-1945 *Note: Requires use of late style thrust washer 12-1510 or
Ball Bearings 12-9909.
**Note: Includes thrust washer set 12-1510
12-0172 12-0164 12-0129 12-0157 Oil Pump Drive Gear Set fits 1973-84
FL-FX.
VT No. 12-1546
12-1496
VT No. OEM Size Use/Fits
12-0172 8854 ³⁄₁₆” 1948-52 Hydraulic Unit
12-0161 8856 ⁷⁄₃₂” Clutch Hub,1941-54 All
12-0164 8858 ¹⁄₄” Oil Filler, 1948-64 12-1496
12-0158 8866 ³⁄₈” Check valve,1941-up FL-
FLH,Classic, 1971-up all FX, Sifton High Flow Pinion Shaft Oil Pump Drive Gear for
1939-53 OHV Big Twins. 6 Tooth gear increases oil flow rate
1954-up all XL
12-0129 ³⁄₈” Nylon Ball Bearings by approximately 25%. Requires use of late style (OEM#
12-0156 8872 ¹⁄₂” Shifter Cam Plunger 26345-73 VT No. 12-1407) oil pump drive shaft gear. Also
available as a kit that includes correct drive shaft gear.
1941-76 with Handshift
12-0157 8860 ⁵⁄₁₆” Clutch Ramp Assembly VT No. Item
12-1496 Pinion Shaft Gear only
Steering Head
1971-83 All XL, 1954-78 All XL 12-1505 Kit
Breather Parts
12-0102 12-9908
Cap and Collar
have been
12-0101 pressed together
Big Twin Pinion Part Kit is complete with proper parts. Primary Breather Tubes for Big Twin models.
VT No. Fits Kit VT No. # OEM Years Item
1936-38 Tube
49-1743 543-36
12-0101 1936-53 Five Piece Kit 12-1514 A 24912-48 1948-57 Tube
12-0102 1955-69 Four Piece Kit 12-1448 A 29411-36 1936-47 Tube
12-0103 1937-53 WL Two Piece Kit 12-0997 A&B 1936-47 Kit
Pinion Shaft Seal Ring is used on all 1940-53 Over Head 12-1528 B 24918-64 1936-57 Snoot
Valve Big Twins, sold each. Replaces 24697-40. 12-9908* C Kit 1958-64 All
VT No. 12-1525 12-1513 D 24918-58 1958-64 Rubber Nipple
12-1517 Breather Screens and Separator fits 1936-69 Big 12-9775 Breather Spacer & Washer Set
Twin, sold in packs of 5. 12-9753 24922-58 Breather Collar
VT No. OEM Item 40-0547 E 24912-65 1965-66 Tube with Nut
Tube with Nut
1967
40-0548 F
24913-67
12-1518 12-1517 25275-36 Screen 12-1191 24914-58 1958-64 Stud Only
12-1518 25279-36 Separator *Note: Includes 24925-58 spacer, 24914-58 stud, (24922-58
collar, 24923-58 cap Note: cap and collar have been pressed
together) and 24918-58 rubber ripple. 493
