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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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  • $28.96 - $28.96
    $28.96
    $32.50
    $32.50 - $32.50
    $32.50

    Scavenger Oil Pump Idler Gear 1937 / 1952 WL 45"1937 / 1973 G 45"1937 / 1948 UL 74 and 80""

    V-TWIN MANUFACTURING
    In stock

    Scavenger idler oil pump gear for Side Valve models. FITMENT 1937 / 1952 WL 45"1937 / 1973 G 45"1937 / 1948 UL 74 and 80""ACCESSORY ITEMS16-052941...

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    $28.96 - $28.96
    $28.96
    $32.50
    $32.50 - $32.50
    $32.50
  • $28.96 - $28.96
    $28.96
    $32.50
    $32.50 - $32.50
    $32.50

    Scavenger Oil Pump Drive Gear 1937 / 1952 WL 45"1937 / 1948 UL 74 and 80""

    V-TWIN MANUFACTURING
    In stock

    Scavenger oil pump drive gear for Side Valve models. FITMENT 1937 / 1952 WL 45"1937 / 1948 UL 74 and 80""

    $28.96 - $28.96
    $28.96
    $32.50
    $32.50 - $32.50
    $32.50
  • $23.04 - $23.04
    $23.04
    $25.84
    $25.84 - $25.84
    $25.84

    Right and Left Case Bearing Retainer 1939 / 1952 WL 1939 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Right and left case bearing retainer FITMENT 1939 / 1952 WL 1939 / 1973 G ACCESSORY ITEMS16-052941-016841-0151

    $23.04 - $23.04
    $23.04
    $25.84
    $25.84 - $25.84
    $25.84
  • $35.53 - $35.53
    $35.53
    $39.85
    $39.85 - $39.85
    $39.85

    Pinion/Sprocket 45 Shaft Nut 1929 / 1931 DL 1932 / 1936 WL 1937 / 1952 WL 1932 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Pinion/sprocket 45 Shaft Nut Nut is for use on pinion and sprocket shaft on 45 W & G models.FITMENT 1929 / 1931 DL 1932 / 1936 WL 1937 / 195...

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    $35.53 - $35.53
    $35.53
    $39.85
    $39.85 - $39.85
    $39.85
  • $29.85 - $29.85
    $29.85
    $33.49
    $33.49 - $33.49
    $33.49

    Crank Pin Nut Set 1929 / 1931 DL 1932 / 1936 WL 1937 / 1952 WL 1937 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Crank pin nut set only. Set of two. *NOTE: Also used on mainshaft sprocket.FITMENT 1929 / 1931 DL 1932 / 1936 WL 1937 / 1952 WL 1937 / 1973 G M...

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    $29.85 - $29.85
    $29.85
    $33.49
    $33.49 - $33.49
    $33.49
  • $40.07 - $40.07
    $40.07
    $48.24
    $48.24 - $48.24
    $48.24

    Crankcase Sprocket Shaft Roller Bearing Retainer 1929 / 1931 DL 1932 / 1952 WL 1932 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Crankcase Sprocket Shaft Roller Bearing Retainer Sold as a pair. *NOTE: Some applications use a 1.35 O.D. cage.FITMENT 1929 / 1931 DL 1932 / 1952...

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    $40.07 - $40.07
    $40.07
    $48.24
    $48.24 - $48.24
    $48.24
  • $36.24 - $36.24
    $36.24
    $40.66
    $40.66 - $40.66
    $40.66

    Cam Chest Circuit Breaker Drive Gear 1937 / 1952 WL 1937 / 1973 G 1937 / 1948 UL

    V-TWIN MANUFACTURING
    In stock

    Cam chest circuit breaker drive gear. FITMENT 1937 / 1952 WL 1937 / 1973 G 1937 / 1948 UL ACCESSORY ITEMS16-052941-016841-0151

    $36.24 - $36.24
    $36.24
    $40.66
    $40.66 - $40.66
    $40.66
  • Sold out
    $80.55 - $80.55
    $80.55
    $105.88
    $105.88 - $105.88
    $105.88

    Crankcase Sprocket Shaft Bearing Assembly 1929 / 1931 DL 1937 / 1952 WL 1932 / 1973 G

    V-TWIN MANUFACTURING
    Out of stock

    Crankcase sprocket shaft bearing assembly includes standard rollers. FITMENT 1929 / 1931 DL 1937 / 1952 WL 1932 / 1973 G ACCESSORY ITEMS16-0529...

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    $80.55 - $80.55
    $80.55
    $105.88
    $105.88 - $105.88
    $105.88
    Sold out
  • $26.16 - $26.16
    $26.16
    $32.30
    $32.30 - $32.30
    $32.30

    Idler Gear Stud Screw 1932 / 1936 WL 1937 / 1952 WL 1932 / 1973 G 1937 / 1948 UL 1932 / 1937 VL

    V-TWIN MANUFACTURING
    In stock

    Idler gear stud screw for Side Valve models. FITMENT 1932 / 1936 WL 1937 / 1952 WL 1932 / 1973 G 1937 / 1948 UL 1932 / 1937 VL ACCESSORY ITEM...

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    $26.16 - $26.16
    $26.16
    $32.30
    $32.30 - $32.30
    $32.30
  • $9.86 - $9.86
    $9.86
    $10.64
    $10.64 - $10.64
    $10.64

    Side Valve Scavenger Oil Pump Screen 1939 / 1952 WL 1939 / 1973 G 1939 / 1948 UL

    V-TWIN MANUFACTURING
    In stock

    Side valve scavenger pump screen. FITMENT 1939 / 1952 WL 1939 / 1973 G 1939 / 1948 UL ACCESSORY ITEMS16-052941-016841-0151

    $9.86 - $9.86
    $9.86
    $10.64
    $10.64 - $10.64
    $10.64
  • $415.00 - $415.00
    $415.00
    $496.80
    $496.80 - $496.80
    $496.80

    Side Valve Feed Pump Kit 1937 / 1952 W 1937 / 1973 G 1937 / 1948 U

    V-TWIN MANUFACTURING
    In stock

    Side valve feed pump kit includes complete cast iron pump assembly feed pump upgrade and mount kit. Kit includes a cast iron oil pump assembly wh...

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    $415.00 - $415.00
    $415.00
    $496.80
    $496.80 - $496.80
    $496.80
  • $28.04 - $28.04
    $28.04
    $35.24
    $35.24 - $35.24
    $35.24

    Pinion Shaft Parts Kit 1937 / 1973 WL 1937 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Kit includes pinion shaft seal ring and pinion shaft ring spring. FITMENT 1937 / 1973 WL 1937 / 1973 G ACCESSORY ITEMS16-052941-016841-0151REPLA...

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    $28.04 - $28.04
    $28.04
    $35.24
    $35.24 - $35.24
    $35.24
  • $24.29 - $24.29
    $24.29
    $30.90
    $30.90 - $30.90
    $30.90

    Pinion Shaft Parts Kit 1940 / 1948 UL

    V-TWIN MANUFACTURING
    In stock

    Pinion shaft parts kit includes pinion shaft seal ring and ring springs. FITMENT 1940 / 1948 UL ACCESSORY ITEMS16-052941-016841-0151REPLACEMENT P...

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    $24.29 - $24.29
    $24.29
    $30.90
    $30.90 - $30.90
    $30.90
  • Sold out
    $546.28 - $546.28
    $546.28
    $676.59
    $676.59 - $676.59
    $676.59

    Sifton 45 WR Cam Set 1937 / 1973 G 1937 / 1952 W

    V-TWIN MANUFACTURING
    Out of stock

    Sifton 4 piece 45 WR cam set for use with bushings features the original design lobes by Tom Sifton in the late 1940's. For use with roller tapp...

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    $546.28 - $546.28
    $546.28
    $676.59
    $676.59 - $676.59
    $676.59
    Sold out
  • $130.07 - $130.07
    $130.07
    $166.57
    $166.57 - $166.57
    $166.57

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

    V-TWIN MANUFACTURING
    In stock

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

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    $130.07 - $130.07
    $130.07
    $166.57
    $166.57 - $166.57
    $166.57
  • $81.55 - $81.55
    $81.55
    $88.07
    $88.07 - $88.07
    $88.07

    Steel Connecting Rod Bearing Cage Set 1929 / 1931 DL 1932 / 1936 WL 1937 / 1952 WL 1937 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Sifton steel connecting rod bearing cage set includes 4 cages and standard size Torrington roller set. *NOTE: Are late style cages.FITMENT 1929 / ...

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    $81.55 - $81.55
    $81.55
    $88.07
    $88.07 - $88.07
    $88.07
  • $26.16 - $26.16
    $26.16
    $29.35
    $29.35 - $29.35
    $29.35

    Washer Sprocket Shaft Right Side 1939 / 1952 WL 1939 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Right side washer sprocket shaft FITMENT 1939 / 1952 WL 1939 / 1973 G ACCESSORY ITEMS10-116141-016841-015110-1165

    $26.16 - $26.16
    $26.16
    $29.35
    $29.35 - $29.35
    $29.35
  • $26.16 - $26.16
    $26.16
    $29.35
    $29.35 - $29.35
    $29.35

    Washer Sprocket Shaft Left Side 1939 / 1952 WL 1939 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Left side washer sprocket shaft FITMENT 1939 / 1952 WL 1939 / 1973 G ACCESSORY ITEMS10-116141-016841-015110-1166

    $26.16 - $26.16
    $26.16
    $29.35
    $29.35 - $29.35
    $29.35
  • $28.91 - $28.91
    $28.91
    $38.56
    $38.56 - $38.56
    $38.56

    Inside Flywheel Thrust Washer Set 1936 / 1952 WL 1936 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Flywheel thrust washer set inside Set of two.FITMENT 1936 / 1952 WL 1936 / 1973 G ACCESSORY ITEMS16-052941-016841-0151

    $28.91 - $28.91
    $28.91
    $38.56
    $38.56 - $38.56
    $38.56
  • $59.15 - $59.15
    $59.15
    $68.99
    $68.99 - $68.99
    $68.99

    Flywheel Thrust Washer Set 1929 / 1931 DL 1932 / 1936 WL 1937 / 1952 WL 1932 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Flywheel thrust washers are a set of 10 ranging from .066-.102 thickness and increases in steps of .004. Set of 10.FITMENT 1929 / 1931 DL 1932 / 1...

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    $59.15 - $59.15
    $59.15
    $68.99
    $68.99 - $68.99
    $68.99
  • $49.88 - $49.88
    $49.88
    $58.18
    $58.18 - $58.18
    $58.18

    1-Hole Sifton Crank Pin 1937 / 1973 G 1937 / 1952 W

    V-TWIN MANUFACTURING
    In stock

    Sifton 1-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
    $58.18
    $58.18 - $58.18
    $58.18
  • $773.13 - $773.13
    $773.13
    $991.76
    $991.76 - $991.76
    $991.76

    Truett & Osborne Flywheel Set 1929 / 1931 DL 1932 / 1936 WL 1937 / 1952 WL 1937 / 1973 G

    V-TWIN MANUFACTURING
    In stock

    Bare flywheels for side valve models feature original weight right and left sides. FITMENT 1929 / 1931 DL 1932 / 1936 WL 1937 / 1952 WL 1937 / ...

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    $773.13 - $773.13
    $773.13
    $991.76
    $991.76 - $991.76
    $991.76
  • $1,427.63 - $1,427.63
    $1,427.63
    $1,427.63 - $1,427.63
    $1,427.63

    V-Twin Stock Flywheel Assembly 1929 / 1931 DL 1932 / 1936 WL 1937 / 1952 WL 1937 / 1973 G 1937 / 1952 W

    V-TWIN MANUFACTURING
    Low stock

    Shipped assembled and trued with shafts included. FITMENT 1929 / 1931 DL 1932 / 1936 WL 1937 / 1952 WL 1937 / 1973 G 1937 / 1952 W ACCESSORY ...

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    $1,427.63 - $1,427.63
    $1,427.63
    $1,427.63 - $1,427.63
    $1,427.63
  • $834.45 - $834.45
    $834.45
    $1,083.45
    $1,083.45 - $1,083.45
    $1,083.45

    Truett and Osborne Stock Flywheel Set 1937 / 1948 UL

    V-TWIN MANUFACTURING
    In stock

    Flywheel set feature original weight right and left sides. *NOTE: Flywheel made with the 1941-up Overhead Valve crankpin NOT the stepped crankpin ...

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    $834.45 - $834.45
    $834.45
    $1,083.45
    $1,083.45 - $1,083.45
    $1,083.45