Shop Transmission Transmission 45cui/750cc Transmission Parts
Bearing Needles for Transmission Shafts

Bearing Needles for Transmission Shafts

Select variant:
77-502
for mainshaft, right side, and countershaft, left side 750 cc 1935-1973; length: 0.625”; Ø 0.1524”; Over-/Undersize: +0.0004 ”; replaces OEM HD 2306-32F, and 9091
77-540
for main drive gear 750cc 1937-1973, model E 1936 and all Big Twin 1937-early 1977; coutershaft both sides model E 1936 and all Big Twin 1937-early 1977; length: 0.615”; Ø 0.125”; Over-/Undersize: +0.000 ”; replaces OEM HD 2289-36, and 9084
77-542
for main drive gear 750cc 1937-1973, model E 1936 and all Big Twin 1937-early 1977; coutershaft both sides model E 1936 and all Big Twin 1937-early 1977; length: 0.615”; Ø 0.1254”; Over-/Undersize: +0.0004 ”; replaces OEM HD 2289-36F, and 9085
77-544
for main drive gear 750cc 1937-1973, model E 1936 and all Big Twin 1937-early 1977; coutershaft both sides model E 1936 and all Big Twin 1937-early 1977; length: 0.615”; Ø 0.1258”; Over-/Undersize: +0.0008 ”; replaces OEM HD 2289-36KA, and 9086
77-547
for countershaft, right side 750cc 1939-1973; length: 0.750”; Ø 0.1140”; Over-/Undersize: +0.000 ”; replaces OEM HD 2289-39, and 9075
77-548
for countershaft, right side 750cc 1939-1973; length: 0.750”; Ø 0.1144”; Over-/Undersize: +0.0004 ”; replaces OEM HD 2289-39F, and 9076
77-549
for countershaft, right side 750cc 1939-1973; length: 0.750”; Ø 0.1148”; Over-/Undersize: +0.0008 ”; replaces OEM HD 2289-39KA, and 9077
77-501
for mainshaft, right side, and countershaft, left side 750 cc 1935-1973; length: 0.625”; Ø 0.1520”; Over-/Undersize: +0.000 ”; replaces OEM HD 2306-32, and 9090
77-503
for mainshaft, right side, and countershaft, left side 750 cc 1935-1973; length: 0.625”; Ø 0.1528”; Over-/Undersize: +0.0008 ”; replaces OEM HD 2306-32KA, and 9092
77-589
for mainshaft, right side, and countershaft, left side 750 cc 1935-1973; length: 0.625”; Ø 0.1530”; replaces OEM HD 2306-32MA
Price and stock:
Item №
77-502
Price incl. VAT
0.73 €
Available
100+
Ready for immediate delivery from our Würzburg, Germany warehouse
The price includes 0.12 € German VAT.
piece
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  • Bearing needle
  • for mainshaft, right side, and countershaft, left side 750 cc 1935-1973
  • steel, ground
  • length: 0.625”
  • Ø 0.1524”
  • tolerance class: RBEC 1
  • Over-/Undersize: +0.0004 ”
  • replaces Harley-Davidson part number HD 2306-32F, and 9091
  • gross weight: 1 g

On their 3-speed 750 cc and 4-speed Big Twin transmissions Harley-Davidson relied on loose needle bearing for decades. In this case loose means that the needle ran between without cages on ground steel races or on the shafts themselves. Worn needles could be exchanged, races and shafts could be re-ground, and new needles inserted for required bearing clearance.

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