What is the transmission oil capacity for an 03 FLHTC ?

Toyota Tacoma 2.7L L4 and 3.5L V6 Manual Transmission Fluid Change Capacity: 2.2-2.5 liters or 2.3-2.6 quarts. Toyota Tacoma 4.0L V6 Manual Transmission Fluid Change Capacity: 1.8 liters or 1.9 quarts.

Transmission fluid
(Ounces, approximate)

FLHT/C/U FLHR/C FLTR
20-24 20-24 20-24

2007 Touring Fork Oil Requirements

All models except Road King Damper Valve 10.8oz 319ML 5.59IN. 142MM
Road King Conventional 11.1oz 328ML 5.24 IN 133MM

Usually the engine oil drain is the plug closest to the front left of the oil pan. The drain in the center of the pan is the transmission drail. If you do accidently drain the transmision, refill it with 20-24 oz. of transmission lube. Do not use the Syn3 20W50 oil. It won't hurt the transmission but the transmission gear whine will be loud. Use the H-D semi-synthetic tranny lube.

Good Luck
Steve

There are three areas that you have to service, engine oil, primary oil, and transmission.

To change the engine oil, underneath the transmission, you'll find two drain plugs. The drain plug nearest the left side of the engine is the the engine oil drain. Warm the engine a bit and drain the oil. Change the oil filter. This is a messy job so put something down to catch the oil as it runs out of the filter. Replace drain plug and refill with oil.

The plug nearest the center of the transmission is the transmission drain. Remove the plug to drain the transmission. Once drained replace the plug and refill the transmission through the transmission fill hole in the chrome cover on the right side of the transmission.

To change the primary oil, underneath the primary outer cover very near the rear of this cover is a small drain plug. It takes a Torx wrench to get the plug out. Remove the plug to drain the oil from the primary. Remove the derby cover over the clutch. Refill with oil through the derby cover hole.

Your bike probably came with H-D Syn3 oil. You can replace the oil with this or any other oil as long as it carries a rating for use in a diesel engine. Here, it must have an API code of "C", example "SJ/CG4". Four quarts of engine oil, Add three quarts of oil and check. Fill to proper level with the fourth. Your dipstick is marked with a "Full Cold" and "Full Hot" mark. Fill to "Full Cold" mark and check again after warming up the engine.

Use Syn3 in the primary or 30 weight oil, 40-44 ounces. With the bike standing nearly straight up, the fluid level should be to the bottom of the clutch spring, large black disc in the center of the clutch. It's a diaphragm type spring.


Use Syn3 in the transmission, 20-24 fluid ounces. Check with the dip stick again with the bike standing straight up.