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classic prodgroup Engine - Bottom End

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    $28.96
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    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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    $26.76
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    $26.76
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    $28.96
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    $28.96
    $26.76
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    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
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    $28.96
    $26.76
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    $26.76
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    $23.04
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    $23.04
    $21.28
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    $21.28

    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
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    $23.04
    $21.28
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    $21.28
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    $35.53
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    $35.53
    $32.82
    $32.82 - $32.82
    $32.82

    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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    $32.82
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    $29.85
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    $27.58
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    $27.58

    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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    $27.58
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  • $40.07 - $40.07
    $40.07
    $40.20
    $40.20 - $40.20
    $40.20

    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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    $40.20
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    $36.24
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    $36.24
    $33.48
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    $33.48

    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
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    $36.24
    $33.48
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    $33.48
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  • $80.55 - $80.55
    $80.55
    $93.17
    $93.17 - $93.17
    $93.17

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

    V-TWIN MANUFACTURING
    In 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
    $93.17
    $93.17 - $93.17
    $93.17
  • $26.16 - $26.16
    $26.16
    $26.60
    $26.60 - $26.60
    $26.60

    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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    $26.60
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    $26.60
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    $9.86
    $9.86 - $9.86
    $9.86
    $8.87
    $8.87 - $8.87
    $8.87

    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
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    $9.86
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    $8.87
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  • Sold out
    $415.00 - $415.00
    $415.00
    $484.88
    $484.88 - $484.88
    $484.88

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

    V-TWIN MANUFACTURING
    Out of 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
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    $484.88
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    $484.88
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  • $28.04 - $28.04
    $28.04
    $29.03
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    $29.03

    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
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    $29.03
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    $29.03
  • $24.29 - $24.29
    $24.29
    $25.45
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    $25.45

    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
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    $25.45
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    $25.45
  • Sold out
    $546.28 - $546.28
    $546.28
    $660.35
    $660.35 - $660.35
    $660.35

    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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    $660.35
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    $660.35
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  • $130.07 - $130.07
    $130.07
    $152.29
    $152.29 - $152.29
    $152.29

    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
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    $152.29
    $152.29 - $152.29
    $152.29
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    $81.55
    $81.55 - $81.55
    $81.55
    $77.50
    $77.50 - $77.50
    $77.50

    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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    $26.16
    $26.16 - $26.16
    $26.16
    $24.17
    $24.17 - $24.17
    $24.17

    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
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    $24.17
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    $24.17
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    $26.16
    $26.16 - $26.16
    $26.16
    $24.17
    $24.17 - $24.17
    $24.17

    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
    $26.16
    $24.17
    $24.17 - $24.17
    $24.17
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  • $28.91 - $28.91
    $28.91
    $31.75
    $31.75 - $31.75
    $31.75

    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
    $31.75
    $31.75 - $31.75
    $31.75
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    $59.15
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    $59.15
    $57.49
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    $57.49

    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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    $49.88
    $49.88 - $49.88
    $49.88
    $48.48
    $48.48 - $48.48
    $48.48

    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
    $48.48
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    $48.48
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  • $773.13 - $773.13
    $773.13
    $858.28
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    $858.28

    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
    $858.28
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    $858.28
  • Sold out
    $1,377.54 - $1,377.54
    $1,377.54
    $1,377.54 - $1,377.54
    $1,377.54

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

    V-TWIN MANUFACTURING
    Out of 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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    $1,377.54
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    $1,377.54
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  • $834.45 - $834.45
    $834.45
    $926.35
    $926.35 - $926.35
    $926.35

    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
    $926.35
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    $926.35