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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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  • $1,753.48 - $1,753.48
    $1,753.48
    $1,753.48 - $1,753.48
    $1,753.48

    V-Twin Stock Flywheel Assembly 1937 / 1948 UL

    V-TWIN MANUFACTURING
    In stock

    Shipped complete assembled balanced and trued with shafts. FITMENT 1937 / 1948 UL ACCESSORY ITEMS16-052941-016841-0151REPLACEMENT PARTS10-10271...

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    $1,753.48 - $1,753.48
    $1,753.48
    $1,753.48 - $1,753.48
    $1,753.48
  • $292.01 - $292.01
    $292.01
    $369.38
    $369.38 - $369.38
    $369.38

    Left Side Engine Case 1936 / 1952 W 1936 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Case is a reproduction of the original 45 cubic inch left side case features a bare as cast aluminum finish. Case is blank without serial numbers...

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    $292.01 - $292.01
    $292.01
    $369.38
    $369.38 - $369.38
    $369.38
  • $144.19 - $144.19
    $144.19
    $163.50
    $163.50 - $163.50
    $163.50

    Solid Lightning Tappet Set .010 Oversize 1930 / 1936 VL 1932 / 1936 WL 1937 / 1948 UL 1937 / 1952 WL 1949 / 1973 G 1954 / 1956 KH

    V-TWIN MANUFACTURING
    In stock

    Sifton solid tappet set includes installed roller assembly. Adjuster screws are not included.FITMENT 1930 / 1936 VL 1932 / 1936 WL 1937 / 1948 UL...

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    $144.19 - $144.19
    $144.19
    $163.50
    $163.50 - $163.50
    $163.50
  • $586.66 - $586.66
    $586.66
    $686.10
    $686.10 - $686.10
    $686.10

    Left Side UL Engine Case 1937 / 1948 UL

    V-TWIN MANUFACTURING
    In stock

    Side valve replacement left side engine case features a blank number boss. This case has the same oil passage for the outside sprocket shaft bearin...

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    $586.66 - $586.66
    $586.66
    $686.10
    $686.10 - $686.10
    $686.10
  • $24.29 - $24.29
    $24.29
    $27.25
    $27.25 - $27.25
    $27.25

    Cam Chest Idler Gear Stud 1932 / 1936 WL 45"1937 / 1952 WL 45"1932 / 1973 G 45"1937 / 1948 UL 74 and 80""

    V-TWIN MANUFACTURING
    In stock

    Cam chest idler gear stud only FITMENT 1932 / 1936 WL 45"1937 / 1952 WL 45"1932 / 1973 G 45"1937 / 1948 UL 74 and 80""ACCESSORY ITEMS12-125949-0606

    $24.29 - $24.29
    $24.29
    $27.25
    $27.25 - $27.25
    $27.25
  • Sold out
    $32.64 - $32.64
    $32.64
    $36.61
    $36.61 - $36.61
    $36.61

    Cam Cover Bushing 1937 / 1952 WL 1937 / 1957 G

    V-TWIN MANUFACTURING
    Out of stock

    Bushing for cam cover bushing for side valve models. FITMENT 1937 / 1952 WL 1937 / 1957 G ACCESSORY ITEMS16-052941-016841-0151

    $32.64 - $32.64
    $32.64
    $36.61
    $36.61 - $36.61
    $36.61
    Sold out
  • $400.24 - $400.24
    $400.24
    $479.27
    $479.27 - $479.27
    $479.27

    UL Tappet Assembly and Base Kit 1939 / 1948 U 1939 / 1948 UL

    V-TWIN MANUFACTURING
    In stock

    Zinc plated non-threaded tappet assembly and base kit includes 4 tappet assemblies with adjuster screws and mount screw kit. Accepts 80 valve spri...

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    $400.24 - $400.24
    $400.24
    $479.27
    $479.27 - $479.27
    $479.27
  • $36.80 - $36.80
    $36.80
    $44.35
    $44.35 - $44.35
    $44.35

    Tappet Screw Kit 1940 / 1952 WL 1949 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Adjuster screw kit includes 4 screws and 4 matching lock nuts. FITMENT 1940 / 1952 WL 1949 / 1973 G TECH NOTESUse for replacement #12-0523 nut.U...

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    $36.80 - $36.80
    $36.80
    $44.35
    $44.35 - $44.35
    $44.35
  • $79.86 - $79.86
    $79.86
    $79.86 - $79.86
    $79.86

    Solid Tappet Assembly .010 1930 / 1936 VL 1932 / 1936 WL 1937 / 1948 UL 1937 / 1952 WL 1949 / 1973 G 1954 / 1956 KH

    V-TWIN MANUFACTURING
    Low stock

    Sifton assembly includes installed roller assembly and adjuster screws or nut for application. Tappet has holes for better lubrication in valve tra...

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    $79.86 - $79.86
    $79.86
    $79.86 - $79.86
    $79.86
  • $32.64 - $32.64
    $32.64
    $36.61
    $36.61 - $36.61
    $36.61

    Tappet Adjuster Screw 1940 / 1952 WL 1949 / 1973 G 1940 / 1948 U

    V-TWIN MANUFACTURING
    In stock

    Set of 4 tappet adjuster screws. Set of four.FITMENT 1940 / 1952 WL 1949 / 1973 G 1940 / 1948 U ACCESSORY ITEMS16-052941-016841-0151

    $32.64 - $32.64
    $32.64
    $36.61
    $36.61 - $36.61
    $36.61
  • $83.25 - $83.25
    $83.25
    $106.03
    $106.03 - $106.03
    $106.03

    Lightning Tappet Assembly .005 1930 / 1936 VL 1932 / 1936 WL 1937 / 1948 UL 1937 / 1952 WL 1949 / 1973 G 1954 / 1956 KH

    V-TWIN MANUFACTURING
    In stock

    Sifton assembly includes installed roller assembly and adjuster screws or nut for application. Tappet has holes for better lubrication. Tappets hav...

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    $83.25 - $83.25
    $83.25
    $106.03
    $106.03 - $106.03
    $106.03
  • $83.25 - $83.25
    $83.25
    $106.03
    $106.03 - $106.03
    $106.03

    Standard Lightning Tappet Assembly 1930 / 1936 VL 1932 / 1936 WL 1937 / 1948 UL 1937 / 1952 WL 1949 / 1973 G 1954 / 1956 KH

    V-TWIN MANUFACTURING
    In stock

    Sifton assembly includes installed roller assembly and adjuster screws or nut for application. Tappet has holes for better lubrication and an outer...

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    $83.25 - $83.25
    $83.25
    $106.03
    $106.03 - $106.03
    $106.03
  • $78.35 - $78.35
    $78.35
    $91.67
    $91.67 - $91.67
    $91.67

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

    V-TWIN MANUFACTURING
    In stock

    V-Twin engine sprocket shaft for 45 side valve models. FITMENT 1929 / 1931 DL 1932 / 1936 WL 1937 / 1952 WL 1932 / 1973 G ACCESSORY ITEMS16-05...

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    $78.35 - $78.35
    $78.35
    $91.67
    $91.67 - $91.67
    $91.67
  • $111.69 - $111.69
    $111.69
    $159.49
    $159.49 - $159.49
    $159.49

    45 WL Engine Pinion Shaft 1937 / 1952 WL 1937 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Precision ground for correct fitment. FITMENT 1937 / 1952 WL 1937 / 1973 G ACCESSORY ITEMS10-040612-056010-043310-1206

    $111.69 - $111.69
    $111.69
    $159.49
    $159.49 - $159.49
    $159.49
  • $84.54 - $84.54
    $84.54
    $121.69
    $121.69 - $121.69
    $121.69

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

    V-TWIN MANUFACTURING
    In stock

    Machined and hardened to factory specifications. FITMENT 1929 / 1931 DL 1932 / 1936 WL 1937 / 1952 WL 1932 / 1973 G ACCESSORY ITEMS16-052941-0...

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    $84.54 - $84.54
    $84.54
    $121.69
    $121.69 - $121.69
    $121.69
  • $66.55 - $66.55
    $66.55
    $77.62
    $77.62 - $77.62
    $77.62

    45 WL Replica Pinion Shaft 1937 / 1952 WL 1937 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Replica pinion shaft is machined and ground to factory specifications. FITMENT 1937 / 1952 WL 1937 / 1973 G ACCESSORY ITEMS10-044912-056010-1206...

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    $66.55 - $66.55
    $66.55
    $77.62
    $77.62 - $77.62
    $77.62
  • $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
  • Sold out
    $194.71 - $194.71
    $194.71
    $223.08
    $223.08 - $223.08
    $223.08

    Engine Pinion Shaft 1937 / 1952 WL 1937 / 1973 G

    V-TWIN MANUFACTURING
    Out of stock

    Pinion shaft is precision ground for correct fitment. Shaft includes plug. FITMENT 1937 / 1952 WL 1937 / 1973 G ACCESSORY ITEMS10-043312-056010-...

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    $194.71 - $194.71
    $194.71
    $223.08
    $223.08 - $223.08
    $223.08
    Sold out
  • Sold out
    $68.22 - $68.22
    $68.22
    $73.67
    $73.67 - $73.67
    $73.67

    Sprocket Shaft 1925 / 1929 J

    V-TWIN MANUFACTURING
    Out of stock

    Machined and hardened to factory specifications. FITMENT 1925 / 1929 J ACCESSORY ITEMS16-052941-016841-0151

    $68.22 - $68.22
    $68.22
    $73.67
    $73.67 - $73.67
    $73.67
    Sold out
  • $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