[rebelchief]

I ordered some 921 bulbs (LED, white) to change out my reverse and third brake light bulbs. The 921's are perfect for the third brake light but DO NOT fit the reverse bulbs. I'm not sure if it changed for 2017, but the base of the 921's are way too narrow. What will fit is a 7440/W21W bulb (much wider).

If this has already been covered, please disregard.

 

[zim]

Good to know...thanks for the heads up

 

[johnj]

They've been 7440/W21W since the Rebel came out in 2015.

Here's an OEM parts list that @texas_rebel and I put together back then.
OEM Parts Specs Guide