Motorcycle Transmission Hardware
![Mega Nut Sprocket/Pulley Lock-Nut for 1993 & Up H-D Sportster and 1993-2006 Big Twin and Twin Cam](http://www.lowbrowcustoms.com/cdn/shop/products/010513-CycleStandard-Solo22holesprocketlock-nutkit-1_{width}x.jpg?v=1622298836)
![Mega Nut Sprocket/Pulley Lock-Nut for 1993 & Up H-D Sportster and 1993-2006 Big Twin and Twin Cam](http://www.lowbrowcustoms.com/cdn/shop/products/010513-CycleStandard-Solo22holesprocketlock-nutkit-2_{width}x.jpg?v=1622298835)
Cycle Standard
Mega Nut Sprocket/Pulley Lock-Nut for 1993 & Up H-D Sportster and 1993-2006 Big Twin and Twin Cam
15
$58.55
![Twisty Transmission Plate - Harley-Davidson Big Twin 4 Speeds](http://www.lowbrowcustoms.com/cdn/shop/files/015914-FNACustomCycle-TwistyTransmissionPlate-Harley-DavidsonBigTwin4Speeds-1_{width}x.jpg?v=1714139512)
![Twisty Transmission Plate - Harley-Davidson Big Twin 4 Speeds](http://www.lowbrowcustoms.com/cdn/shop/files/015914-FNACustomCycle-TwistyTransmissionPlate-Harley-DavidsonBigTwin4Speeds-2_{width}x.jpg?v=1714139513)
FNA Custom Cycle
Twisty Transmission Plate - Harley-Davidson Big Twin 4 Speeds
$240.00
![#8748-12 Transmission Top Cover Allen Screw 1965-1978 Harley-Davidson Big Twin - Chrome Plated](http://www.lowbrowcustoms.com/cdn/shop/products/8748-12_COLONY-TRANSMISSION-TOP-COVER-SCREW_{width}x.jpg?v=1622624935)
Colony
#8748-12 Transmission Top Cover Allen Screw 1965-1978 Harley-Davidson Big Twin - Chrome Plated
2
$27.83
![8749-12 Transmission Top Cover Allen Screw Kit 1965-1978 Harley-Davidson Big Twin - CAD Plated](http://www.lowbrowcustoms.com/cdn/shop/products/unnamed_1_{width}x.jpg?v=1622524556)
Colony
8749-12 Transmission Top Cover Allen Screw Kit 1965-1978 Harley-Davidson Big Twin - CAD Plated
1
$25.41
![#8750-14 Transmission Top Cover Allen Screw 1936-1964 Harley-Davidson Big Twin - Chrome Plated](http://www.lowbrowcustoms.com/cdn/shop/products/8750-14_COLONY-TRANSMISSION-TOP-COVER_{width}x.jpg?v=1622624936)
Colony
#8750-14 Transmission Top Cover Allen Screw 1936-1964 Harley-Davidson Big Twin - Chrome Plated
$28.97
![Tapered Kick Start Cotter Pin for Triumph Motorcycles - Oversized](http://www.lowbrowcustoms.com/cdn/shop/products/large_765_765_triumph-kicker-kick-start-cotter-pin_1_{width}x.jpg?v=1588914081)
![Tapered Kick Start Cotter Pin for Triumph Motorcycles - Oversized](http://www.lowbrowcustoms.com/cdn/shop/products/large_765_765_triumph-kicker-kick-start-cotter-pin_2_{width}x.jpg?v=1622157707)
British Standard
Tapered Kick Start Cotter Pin for Triumph Motorcycles - Oversized
10
$11.41
![#8751-19 Transmission Side Cover Long Acorn 1936-1984 Harley-Davidson Big Twin - Chrome Plated](http://www.lowbrowcustoms.com/cdn/shop/products/8751-19_COLONY-TRANSMISSION-SIDE-COVER_{width}x.jpg?v=1588872121)
Colony
#8751-19 Transmission Side Cover Long Acorn 1936-1984 Harley-Davidson Big Twin - Chrome Plated
$26.06
![#8147-13 Transmission Top Cover Screw Kit 1956-1964 Harley-Davidson Big Twins - Chrome Plated](http://www.lowbrowcustoms.com/cdn/shop/products/8147-13_COLONY-TRANSMISSION-TOP-COVER-SCREW-KIT_{width}x.jpg?v=1622647684)
Colony
#8147-13 Transmission Top Cover Screw Kit 1956-1964 Harley-Davidson Big Twins - Chrome Plated
$24.94
![#3096-1 Transmission Adjuster Screw Support Strap CAD Harley Big Twins 1936-57](http://www.lowbrowcustoms.com/cdn/shop/products/3096-1_colony-transmission_adjuster_screw-1936-1957_big_twins_{width}x.jpg?v=1588868760)
Colony
#3096-1 Transmission Adjuster Screw Support Strap 1936-1957 Harley-Davidson Big Twins - CAD Plated
1
$16.50
![#2104-13 Transmission Top Cover Phillips Screw Kit 1950-1953 Harley-Davidson Big Twin - CAD Plated](http://www.lowbrowcustoms.com/cdn/shop/products/2104-13_COLONY-TRANSMISSON-TOP-COVER-SCREW-KIT_{width}x.jpg?v=1622694444)
Colony
#2104-13 Transmission Top Cover Phillips Screw Kit 1950-1953 Harley-Davidson Big Twin - CAD Plated
$25.41
![Engine and Transmission Lock Tab Set - 1963 - 1972 Triumph 650 with 4 Speed Gearbox](http://www.lowbrowcustoms.com/cdn/shop/products/006033_-_british_standard_-_engine_lock_tab_set_-_triumph_650-2_{width}x.jpg?v=1588894189)
![Engine and Transmission Lock Tab Set - 1963 - 1972 Triumph 650 with 4 Speed Gearbox](http://www.lowbrowcustoms.com/cdn/shop/products/006033_-_british_standard_-_engine_lock_tab_set_-_triumph_650-1_{width}x.jpg?v=1588894159)
British Standard
Engine and Transmission Lock Tab Set - 1963 - 1972 Triumph 650 with 4 Speed Gearbox
14
$18.90
![#9654-4 Oversize Transmission Case Bottom Stud Kit 1936-1983 Harley-Davidson Big Twins - Parkerized](http://www.lowbrowcustoms.com/cdn/shop/products/9654-4_COLONY-TRANSMISSION-CASE-BOTTOM_{width}x.jpg?v=1622603459)
Colony
#9654-4 Oversize Transmission Case Bottom Stud Kit 1936-1983 Harley-Davidson Big Twins - Parkerized
1
$18.82
![#2343-13 Transmission Side Cover Allen Screw Kit 2006-Up Harley-Davidson Dyna - Chrome Plated](http://www.lowbrowcustoms.com/cdn/shop/products/2343-13_COLONY-TRANSMISSION-SIDE-COVER_{width}x.jpg?v=1622687348)
Colony
#2343-13 Transmission Side Cover Allen Screw Kit 2006-Up Harley-Davidson Dyna - Chrome Plated
$17.60
![#3097-1 Transmission Adjuster Screw Support Strap Parkerized Harley Big Twins 1936-57](http://www.lowbrowcustoms.com/cdn/shop/products/3097-1_colony_-_transmission_adjuster_screw_support_strap_-_1936-1957_big_twins_{width}x.jpg?v=1588868763)
Colony
#3097-1 Transmission Adjuster Screw Support Strap 1936-1957 Harley-Davidson Big Twins - Parkerized
1
$16.50
![#9666-27 Transmission Top & Side Cover Screw Kit 19387-1973 Harley-Davidson 45's - Parkerized](http://www.lowbrowcustoms.com/cdn/shop/products/9666-27_COLONY-TRANSMISSION-TOP-AND-SIDE-COVER_{width}x.jpg?v=1622603036)
Colony
#9666-27 Transmission Top & Side Cover Screw Kit 19387-1973 Harley-Davidson 45's - Parkerized
$16.29
![#2525-1 Slotted Nut Driver for Kick Starter Tripper Nuts 1941-1963 Harley-Davidson 45's - Parkerized](http://www.lowbrowcustoms.com/cdn/shop/products/2525-1_COLONY-SLOTTED-NUT-DRIVER_{width}x.jpg?v=1588866603)
Colony
#2525-1 Slotted Nut Driver for Kick Starter Tripper Nuts 1941-1963 Harley-Davidson 45's - Parkerized
$15.52
![#2404-6-P Transmission Shifter Cover Smooth Allen Kit 2007-Up Harley-Davidson FLT - Chrome Plated](http://www.lowbrowcustoms.com/cdn/shop/products/2404-6-P-COLONY-Transmion_20Shifter_20Cover_20Polished_20Allen_20Screw_20Kit_{width}x.jpg?v=1588866094)
Colony
#2404-6-P Transmission Shifter Cover Smooth Allen Kit 2007-Up Harley-Davidson FLT - Chrome Plated
$13.22
![#3455-1 Self Tapping Transmission Filler Plug 1936-1957 Harley-Davidson Big Twin - Parkerized](http://www.lowbrowcustoms.com/cdn/shop/products/010934-Colony-3455-1-Self-Tapping-Transmission-Filler-Plug-1936-57-Harley-Davidson-Big-Twin-1_{width}x.jpg?v=1600111783)
Colony
#3455-1 Self Tapping Transmission Filler Plug 1936-1957 Harley-Davidson Big Twin - Parkerized
$12.74
Motorcycle Transmission Hardware FAQ
What are the symptoms of a bad transmission mount?
Typically, if you have a bad transmission mount you will notice some excessive vibration and some difficulty shifting. Eventually, this vibration will lead to a damaged seal. When you damage your transmission seal, you will notice a leak. It is best to check your mounts annually to make sure they are in good condition. If you suspect your mounts are worn out, it is best to replace them before they cause more damage.
How long do transmission mounts last?
The life span of your transmission mount will vary depending on climate, horsepower, riding style, and environment. Rubber is used in many of these mounts and this material will lose its elasticity if exposed to things like direct sunlight, excessive heat, or even the type of cleaners you use can have an effect on rubber components. Rubber components need to be inspected from time-to-time to ensure that they are still in good working condition. Because of these variables, there is no designated life span on these mounts.