Rockwell 3.75" Oil Cap Assembly for 9K–16K Drums (RW12011-1) 12-1/4 x 3-3/8 Brake controller harnesses connect directly

Brake controller harnesses connect directly to factory tow ports

Application references do not guarantee fitment

mounting surfaces

and 16-1/2" wheel applications commonly paired with this brake size Primary Use Case Brake service for one trailer axle where both left and right assemblies need replacement Best Alternative Need to service both axles

Rockwell 3.75" Oil Cap Assembly for 9K–16K Drums (RW12011-1) 12-1/4 x 3-3/8 Brake controller harnesses connect directlyRockwell 3. 75" Oil Cap Assembly Fits 9K16K Drums (RW12011 1) Part Number: RW12011 1 This is a single Rockwell style 3. 75" oil cap assembly used on many 9,00016,000 lb Rockwell American hubs and drums manufactured after 1996. It replaces Rockwell part number 12011 1 and is also used on some Kodiak disc brake hubs that accept a 3. 75" oil cap. Features Single replacement oil cap assembly for Rockwell hubs Fits many 9K16K Rockwell American axle drum