GMC Sierra 3500 HD Fuel Tank Cap Replacement

OE Specified Yellow Cap Type

OE Specified Green Cap Type

Non-Locking With OE No. 20915987

With OE No. 20804101

[Locking Fuel Tank Cap] Black Cap;

Green

Green; As required

As required

OE Specified Green Cap Type

Non Locking

Yellow

Green

GM Original Equipment; BASE BODY/CHASSIS (ZW9)

As required

GM Original Equipment; BASE BODY/CHASSIS (ZW9); USE TOGETHER WITH 23114055; FULL TURN FUEL FILL CAP

GM Original Equipment; FLEETSIDE PUBX (E63); 2nd Design; USE ON VEHICLES WITH T/TYPE TETHER FULL TURN CAP) (1st DESIGN SEE 20915842

Yellow

GM Original Equipment; FLEETSIDE PUBX (E63), BIFUEL & MONOVALENT PLUS CNG FUEL (FHV)

Green; As required

Non Locking

Color-Yellow, Non Locking, Incl.Tether

Locking Cover

Non Locking