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
14
$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
![#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
![#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
![#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
![#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
![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
![#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
![#8803-2 Transmission Fill Plug/Dipstick 1985-1986 Harley-Davidson Evo 5 Speed - Chrome Plated](http://www.lowbrowcustoms.com/cdn/shop/products/8803-2_COLONY-TRANSMISSION-FILL-PLUG_DIPSTICK_{width}x.jpg?v=1588872365)
Colony
#8803-2 Transmission Fill Plug/Dipstick 1985-1986 Harley-Davidson Evo 5 Speed - Chrome Plated
$16.67
![#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
![#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
![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
![#9671-20 Transmission Side Cover & Clutch Arm Nut Kit Pre-1984 Harley-Davidson 4 Speed - Parkerized](http://www.lowbrowcustoms.com/cdn/shop/products/9671-20_COLONY-TRANSMISSION-SIDE-COVER_{width}x.jpg?v=1622603036)
Colony
#9671-20 Transmission Side Cover & Clutch Arm Nut Kit Pre-1984 Harley-Davidson 4 Speed - Parkerized
4
$9.96
![#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
![4 Speed Transmission Mounting Plate for 1958 - 1961 Harley-Davidson Big Twins OEM # 47698-36A](http://www.lowbrowcustoms.com/cdn/shop/products/009775-the-gasbox-4-speed-transmission-mounting-plate-58-61-harley-davidson-big-twins-1_{width}x.jpg?v=1588883823)
![4 Speed Transmission Mounting Plate for 1958 - 1961 Harley-Davidson Big Twins OEM # 47698-36A](http://www.lowbrowcustoms.com/cdn/shop/products/009775-the-gasbox-4-speed-transmission-mounting-plate-58-61-harley-davidson-big-twins-2_{width}x.jpg?v=1588883826)
Gasbox
4 Speed Transmission Mounting Plate for 1958 - 1961 Harley-Davidson Big Twins OEM # 47698-36A
1
$59.95
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.