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Your Headquarters For Harley Davidson After-market Parts
Your Headquarters For Harley Davidson After-market Parts

classic prodgroup Engine - Bottom End

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  • $23.40 - $23.40
    $23.40
    $26.24
    $26.24 - $26.24
    $26.24

    Left Case Oil Slinger 1939 / 1952 WL 1939 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Big Twin Internal left bearing end spacer. FITMENT 1939 / 1952 WL 1939 / 1973 G ACCESSORY ITEMS16-052941-016841-0151

    $23.40 - $23.40
    $23.40
    $26.24
    $26.24 - $26.24
    $26.24
  • $118.53 - $118.53
    $118.53
    $140.70
    $140.70 - $140.70
    $140.70

    Jims Engine Sprocket Shaft 1929 / 1931 DL 1932 / 1936 WL 1937 / 1952 WL 1932 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Sprocket shaft is machined and hardened to factory specifications. FITMENT 1929 / 1931 DL 1932 / 1936 WL 1937 / 1952 WL 1932 / 1973 G ACCESSOR...

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    $118.53 - $118.53
    $118.53
    $140.70
    $140.70 - $140.70
    $140.70
  • $122.54 - $122.54
    $122.54
    $159.49
    $159.49 - $159.49
    $159.49

    Engine Pinion Shaft 1937 / 1948 UL 74 and 80""

    V-TWIN MANUFACTURING
    In stock

    Precision ground for correct fitment. FITMENT 1937 / 1948 UL 74 and 80""ACCESSORY ITEMS16-052941-016841-0151

    $122.54 - $122.54
    $122.54
    $159.49
    $159.49 - $159.49
    $159.49
  • $99.89 - $99.89
    $99.89
    $144.36
    $144.36 - $144.36
    $144.36

    Jims Pinion Shaft 1970 / UP XR 750

    V-TWIN MANUFACTURING
    In stock

    Machined and hardened to factory specifications. FITMENT 1970 / UP XR 750ACCESSORY ITEMS16-052941-016841-0151

    $99.89 - $99.89
    $99.89
    $144.36
    $144.36 - $144.36
    $144.36
  • $228.47 - $228.47
    $228.47
    $246.13
    $246.13 - $246.13
    $246.13

    Tappet Block Set 1939 / 1948 UL

    V-TWIN MANUFACTURING
    In stock

    Zinc plated non-threaded front and rear tappet block set. Set includes 2 front and 2 rear.FITMENT 1939 / 1948 UL ACCESSORY ITEMS41-016841-0151REPL...

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    $228.47 - $228.47
    $228.47
    $246.13
    $246.13 - $246.13
    $246.13
  • $81.17 - $81.17
    $81.17
    $121.69
    $121.69 - $121.69
    $121.69

    Replica 3-Hole Crank Pin 1937 / 1952 WL 1937 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Replica crank pin with 3 holes are made of 8620 steel with .062 heat penetration. *NOTE: Check technical notes before ordering. The distance measur...

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    $81.17 - $81.17
    $81.17
    $121.69
    $121.69 - $121.69
    $121.69
  • $31.73 - $31.73
    $31.73
    $35.59
    $35.59 - $35.59
    $35.59

    Crank Pin Nut and Lock Kit 1937 / 1952 WL 1937 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Includes 2 nuts 2 locks and mount screws. Nuts and locks are also available separatelyFITMENT 1937 / 1952 WL 1937 / 1973 G ACCESSORY ITEMS16-05...

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    $31.73 - $31.73
    $31.73
    $35.59
    $35.59 - $35.59
    $35.59
  • $28.89 - $28.89
    $28.89
    $36.35
    $36.35 - $36.35
    $36.35

    Right Side Case Roller Bearing Set .0004 1937 / 1948 UL 1940 / 1954 FL

    V-TWIN MANUFACTURING
    In stock

    Torrington .0004 roller bearings is a 12 piece set for the right side crank case and measure .2504 x .600. FITMENT 1937 / 1948 UL 1940 / 1954 FL ...

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    $28.89 - $28.89
    $28.89
    $36.35
    $36.35 - $36.35
    $36.35
  • $25.33 - $25.33
    $25.33
    $28.42
    $28.42 - $28.42
    $28.42

    Right Side Case Roller Bearing Set .0002 1937 / 1948 UL 1940 / 1954 FL

    V-TWIN MANUFACTURING
    In stock

    Torrington .0002 roller bearings is a 12 piece set for the right side crank case. FITMENT 1937 / 1948 UL 1940 / 1954 FL MEASURMENTSOuter Diamete...

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    $25.33 - $25.33
    $25.33
    $28.42
    $28.42 - $28.42
    $28.42
  • $28.91 - $28.91
    $28.91
    $36.35
    $36.35 - $36.35
    $36.35

    Right Side Case Roller Bearing Set Standard 1937 / 1948 UL 1940 / 1952 EL 1941 / 1954 FL early 19541957 / 1965 XL 1940 / ES4 FL

    V-TWIN MANUFACTURING
    In stock

    Torrington standard roller bearings is a 12 piece set for the right side crank case and measure .2500 x .600. Set of 12.FITMENT 1937 / 1948 UL 194...

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    $28.91 - $28.91
    $28.91
    $36.35
    $36.35 - $36.35
    $36.35
  • $719.74 - $719.74
    $719.74
    $852.62
    $852.62 - $852.62
    $852.62

    UL Connecting Rod Set 1937 / 1948 UL 74"1937 / 1941 ULH 80"

    V-TWIN MANUFACTURING
    In stock

    Connecting rod set includes new rods crank pin nuts cages and standard rollers fitted and assembled. Piston pin bushings are installed and honed...

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    $719.74 - $719.74
    $719.74
    $852.62
    $852.62 - $852.62
    $852.62
  • $220.93 - $220.93
    $220.93
    $306.46
    $306.46 - $306.46
    $306.46

    Jims Pinion Right Side Case Race .005 1940 / 1948 UL 74 and 80""

    V-TWIN MANUFACTURING
    In stock

    .005 right side case race is machined and ground to factory specifications. FITMENT 1940 / 1948 UL 74 and 80""ACCESSORY ITEMS16-185216-583216-5833

    $220.93 - $220.93
    $220.93
    $306.46
    $306.46 - $306.46
    $306.46
  • $165.50 - $165.50
    $165.50
    $185.98
    $185.98 - $185.98
    $185.98

    Jims Pinion Right Side Case Race Standard 1940 / 1948 UL 74 and 80""

    V-TWIN MANUFACTURING
    In stock

    Standard right side case race is machined and ground to factory specifications. Race has an outer diameter of 2.0015 . FITMENT 1940 / 1948 UL 74 ...

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    $165.50 - $165.50
    $165.50
    $185.98
    $185.98 - $185.98
    $185.98
  • $154.19 - $154.19
    $154.19
    $174.84
    $174.84 - $174.84
    $174.84

    Right Side Case Race .005 1939 / 1952 WL 1939 / 1973 G

    V-TWIN MANUFACTURING
    Low stock

    .005 oversize right side case race is machined and ground to factory specifications. FITMENT 1939 / 1952 WL 1939 / 1973 G ACCESSORY ITEMS16-0529...

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    $154.19 - $154.19
    $154.19
    $174.84
    $174.84 - $174.84
    $174.84
  • $163.86 - $163.86
    $163.86
    $184.52
    $184.52 - $184.52
    $184.52

    Standard Case Race Left Side 1939 / 1952 WL 1939 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Left side case race is machined and ground to factory specifications. Race has an outer diameter of 1.753 . FITMENT 1939 / 1952 WL 1939 / 1973 G ...

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    $163.86 - $163.86
    $163.86
    $184.52
    $184.52 - $184.52
    $184.52
  • $77.49 - $77.49
    $77.49
    $90.66
    $90.66 - $90.66
    $90.66

    Pinion Right Side Case Race Standard 1940 / 1948 UL 74 and 80""

    V-TWIN MANUFACTURING
    In stock

    Machined and ground to factory specifications. FITMENT 1940 / 1948 UL 74 and 80""ACCESSORY ITEMS16-185216-583216-5833

    $77.49 - $77.49
    $77.49
    $90.66
    $90.66 - $90.66
    $90.66
  • $65.18 - $65.18
    $65.18
    $76.02
    $76.02 - $76.02
    $76.02

    Left Side Case Race Left Side .002 1939 / 1952 WL 1939 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Machined and ground to factory specifications. FITMENT 1939 / 1952 WL 1939 / 1973 G ACCESSORY ITEMS16-052941-016841-0151

    $65.18 - $65.18
    $65.18
    $76.02
    $76.02 - $76.02
    $76.02
  • $65.18 - $65.18
    $65.18
    $76.02
    $76.02 - $76.02
    $76.02

    Left Side Case Race Standard 1939 / 1952 WL 1939 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Machined and ground to factory specifications. FITMENT 1939 / 1952 WL 1939 / 1973 G ACCESSORY ITEMS10-023810-069310-0218

    $65.18 - $65.18
    $65.18
    $76.02
    $76.02 - $76.02
    $76.02
  • $66.55 - $66.55
    $66.55
    $77.62
    $77.62 - $77.62
    $77.62

    Pinion Right Side Case Race .005 1939 / 1952 WL 1939 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Machined and ground to factory specifications. .005 oversize . FITMENT 1939 / 1952 WL 1939 / 1973 G ACCESSORY ITEMS16-052941-016841-0151

    $66.55 - $66.55
    $66.55
    $77.62
    $77.62 - $77.62
    $77.62
  • $74.92 - $74.92
    $74.92
    $80.90
    $80.90 - $80.90
    $80.90

    Right Side Case Race Standard 1939 / 1952 WL 1939 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Machined and ground to factory specifications. FITMENT 1939 / 1952 WL 1939 / 1973 G ACCESSORY ITEMS10-025510-145210-0693

    $74.92 - $74.92
    $74.92
    $80.90
    $80.90 - $80.90
    $80.90
  • $195.00 - $195.00
    $195.00
    $210.07
    $210.07 - $210.07
    $210.07

    Connecting Rod Race Set 1930 / 1937 VL

    V-TWIN MANUFACTURING
    In stock

    Race set is made from 52100 steel and hardened. Set is a 3 piece set. FITMENT 1930 / 1937 VL ACCESSORY ITEMS16-052941-016841-0151

    $195.00 - $195.00
    $195.00
    $210.07
    $210.07 - $210.07
    $210.07
  • $63.97 - $63.97
    $63.97
    $74.60
    $74.60 - $74.60
    $74.60

    Connecting Rod Race Set 1929 / 1931 DL 45"1932 / 1936 WL 45"1937 / 1952 WL 45"1937 / 1954 G 45"

    V-TWIN MANUFACTURING
    In stock

    Sets are made from 52100 steel and hardened. Set of three.FITMENT 1929 / 1931 DL 45"1932 / 1936 WL 45"1937 / 1952 WL 45"1937 / 1954 G 45"ACCESSORY ...

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    $63.97 - $63.97
    $63.97
    $74.60
    $74.60 - $74.60
    $74.60
  • Save 24% Save %
    $49.88
    $49.88 - $49.88
    $49.88
    $37.87
    $37.87 - $37.87
    $37.87

    2-Hole Sifton Crank Pin 1933 / 1973 G 1929 / 1952 W

    V-TWIN MANUFACTURING
    In stock

    Sifton 2-hole crank pin is made of 8620 steel with a heat treatment depth of .062 . You must align oil feed in flywheels with crank pin. OEM uses t...

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    $49.88
    $49.88 - $49.88
    $49.88
    $37.87
    $37.87 - $37.87
    $37.87
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  • $114.00 - $114.00
    $114.00
    $145.85
    $145.85 - $145.85
    $145.85

    Zinc Front Tappet Block Set 1937 / 1973 G 1937 / 1952 WL 1929 / 1952 W 1930 / 1936 V 1937 / 1938 U

    V-TWIN MANUFACTURING
    In stock

    Zinc front honed tappet block set includes one front intake and one front exhaust. Gaskets are included. Tappet guide set is for the front cylinder...

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    $114.00 - $114.00
    $114.00
    $145.85
    $145.85 - $145.85
    $145.85