General

The transmission lubricant level should be checked monthly.

Refer to Maintenance Scheduling → Regular Service Intervals → Regular Service Intervals: Tri Glide Models. The transmission should be drained and refilled with fresh lubricant at specified intervals.

Check Lubricant Level

1.	See Figure 1. Remove the threaded filler plug/dipstick.
2.	See Figure 2. Wipe off filler plug/dipstick. Place in filler hole and remove. (Dipstick should rest on lip of filler. Do not screw in.) Lubricant level should be between the full and low marks on the plug/dipstick when removed.
	WARNING Be sure that no lubricants or fluids get on tires, wheels or brakes when changing fluid. Traction can be adversely affected, which could result in loss of control of the motorcycle and death or serious injury. (00047d) NOTICE When draining or adding lubricant, do not allow dirt, debris or other contaminants to enter the engine. (00198a)
3.	Add lubricant, if necessary. Do not overfill or leakage may occur. When filling the transmission, use GENUINE Harley-Davidson FORMULA+ TRANSMISSION AND PRIMARY CHAINCASE LUBRICANT (Part No. 99851-05 quart). The transmission fluid capacity is approximately 0.95 L (32 fl oz).
4.	Inspect o-ring for tears or damage. Replace if required. Wipe any foreign material from plug.
5.	Install threaded filler/check plug and tighten clockwise to 2.8–8.5 N·m (25–75 in-lbs).

Figure 1. Transmission Filler Plug/Dipstick Location

1	FULL
2	ADD

Figure 2. Transmission Filler Plug/Dipstick Lubricant Level

Changing Transmission Fluid

1.	See Figure 1. Remove the threaded filler plug/dipstick.
	NOTICE When draining or adding lubricant, do not allow dirt, debris or other contaminants to enter the engine. (00198a) WARNING Be sure that no lubricants or fluids get on tires, wheels or brakes when changing fluid. Traction can be adversely affected, which could result in loss of control of the motorcycle and death or serious injury. (00047d)
2.	See Maintenance and Lubrication → Changing Oil and Oil Filter → Oil Pan. Remove transmission drain plug (1) and drain lubricant into a suitable container. NOTE Dispose of transmission lubricant in accordance with local regulations.
3.	Inspect the drain plug o-ring for tears or damage. Replace if required. Wipe any foreign material from plug.
4.	Install drain plug and tighten to 19–28.5 N·m (14–21 ft-lbs). Fill the transmission with 0.95 L (32 fl oz) of GENUINE Harley-Davidson FORMULA+ TRANSMISSION AND PRIMARY CHAINCASE LUBRICANT (Part No. 99851-05 quart). NOTE Do not overfill or leakage may occur. The transmission fluid capacity is approximately 0.95 L (32 fl oz).
5.	Install threaded filler plug/dipstick and tighten clockwise to 2.8–8.5 N·m (25–75 in-lbs).
6.	Start engine and carefully check for oil leaks around drain plug.