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Motor Parts Flatheads 1937-1948

Motor Parts For Harley-Davidson Big Twin Flatheads 1937-1948
167-38 18198-38 Valve Guide Gaskets

167-38 18198-38 Valve Guide Gaskets

$ 0.75
16769-36 Old 11-36A Big Twin Flathead Copper Head Gaskets USA

16769-36 Old 11-36A Big Twin Flathead Copper Head Gaskets USA

$ 26.41
16769-36A Old 11-36A Teflon Head Gaskets That for All Big Twin U Models

16769-36A Old 11-36A Teflon Head Gaskets That for All Big Twin U Models

$ 26.03
16814-48 Old 14-48 Cad Plated Grade 8 Head Bolt Kit 7825-20 Colony USA

16814-48 Old 14-48 Cad Plated Grade 8 Head Bolt Kit 7825-20 Colony USA

$ 43.98
16851-37 Old 2806-37 U .UL, ULH Big Twin Flathead Top Motor Mount USA Made

16851-37 Old 2806-37 U .UL, ULH Big Twin Flathead Top Motor Mount USA Made

$ 62.40
18082-37 Old 165-37 Exhaust Valve Nitride

18082-37 Old 165-37 Exhaust Valve Nitride

$ 32.95
18082-37X Old 165-37 1/8" Oversize Exhaust Valve Nitride

18082-37X Old 165-37 1/8" Oversize Exhaust Valve Nitride

$ 25.95
18082-57 Or 18086-80 Exhaust Valve Nitride

18082-57 Or 18086-80 Exhaust Valve Nitride

$ 24.95
18082-57X Or 18086-80 1/8" Oversize Exhaust Valve Nitride

18082-57X Or 18086-80 1/8" Oversize Exhaust Valve Nitride

$ 24.95
18245-39 Old 173-39A Upper Cork Valve Cover Seal

18245-39 Old 173-39A Upper Cork Valve Cover Seal

$ 1.75
18247-39 Old 173-39C Valve Cover Spring

18247-39 Old 173-39C Valve Cover Spring

$ 0.79
18257-39 Old 173-39C Lower Cork Valve Cover Seal

18257-39 Old 173-39C Lower Cork Valve Cover Seal

$ 1.80
18258-39 Old 175-39B Valve Spring Retainers

18258-39 Old 175-39B Valve Spring Retainers

$ 28.09
18259-39 Old 175-39C Fiber Valve Spring Cover Seal

18259-39 Old 175-39C Fiber Valve Spring Cover Seal

$ 1.16
18261-30 Old 175-30A Rubber Valve Cover Seal

18261-30 Old 175-30A Rubber Valve Cover Seal

$ 2.00
18630-26 Old 176-26 Valve Spring Cover Washer

18630-26 Old 176-26 Valve Spring Cover Washer

$ 1.57
1937-1948 ANDREWS CAM SET FOR U, UL, AND ULH

1937-1948 ANDREWS CAM SET FOR U, UL, AND ULH

$ 972.95
237-30 New 18631-30 Tappet Base Gasket

237-30 New 18631-30 Tappet Base Gasket

$ 0.99
24006-37 356-37 Pinion Shaft USA

24006-37 356-37 Pinion Shaft USA

$ 139.95
24010-37 Pinion Shaft Gear

24010-37 Pinion Shaft Gear

$ 108.75
24921-37 Breather Pipe Gasket

24921-37 Breather Pipe Gasket

$ 0.80
25227-37 Old 598–37 Gear Cover Gasket

25227-37 Old 598–37 Gear Cover Gasket

$ 4.40
25350-37 Old 504-37 USA Made Flutter Valve

25350-37 Old 504-37 USA Made Flutter Valve

$ 31.00
26244-37 Old 589-37 Oil Pump Gasket Feed

26244-37 Old 589-37 Oil Pump Gasket Feed

$ 1.95
26246-37 Old 590-37 Oil Pump Return Gasket

26246-37 Old 590-37 Oil Pump Return Gasket

$ 1.80
27039-37 Old 1112-37 Threaded Cylinder Head to Manifold Nipple Colony USA 9423-1

27039-37 Old 1112-37 Threaded Cylinder Head to Manifold Nipple Colony USA 9423-1

$ 22.80
27050-30 old 1115-30 Parkerized Intake Manifold Nuts Colony USA 9702-2

27050-30 old 1115-30 Parkerized Intake Manifold Nuts Colony USA 9702-2

$ 29.33Sold Out
27410-39 Old 1121-39 Intake Manifold Gasket

27410-39 Old 1121-39 Intake Manifold Gasket

$ 1.60
2886-24 Valve Spring Cover Kit Cad Plated

2886-24 Valve Spring Cover Kit Cad Plated

$ 198.00
3065-36 Valve Cover Kit Parkerized

3065-36 Valve Cover Kit Parkerized

$ 236.50
3066-36 Valve Cover Kit Cad Plated

3066-36 Valve Cover Kit Cad Plated

$ 236.50
32522-37 Old 1541-37 Timer Base Gasket

32522-37 Old 1541-37 Timer Base Gasket

$ 0.80
46-21 New 16774-21 Cylinder Base Gasket Knucklehead Big Twin Flathead USA

46-21 New 16774-21 Cylinder Base Gasket Knucklehead Big Twin Flathead USA

$ 3.35
480-38 New 26550-38 Flathead Oil Pressure Switch

480-38 New 26550-38 Flathead Oil Pressure Switch

$ 39.95
9698-18 Parkerized Head Bolt Washer Kit Colony USA

9698-18 Parkerized Head Bolt Washer Kit Colony USA

$ 34.66
9727-18 Parkerized Head Bolt Set Colony USA

9727-18 Parkerized Head Bolt Set Colony USA

$ 89.53
9728-36 Parkerized Head Bolt Set Colony USA

9728-36 Parkerized Head Bolt Set Colony USA

$ 97.04
Upper And Lower Parkerized Complete Motor Mount Kit 9723-22 Colony USA

Upper And Lower Parkerized Complete Motor Mount Kit 9723-22 Colony USA

$ 43.83