2-11/16in Steel Cup Plug
The 42011 Cup Plug delivers a tight, reliable seal for engine block openings, helping prevent coolant and oil leaks. Made from durable material, it withstands heat, pressure, and vibration inside heavy-duty engines. It’s a dependable replacement plug designed to maintain engine integrity and performance in various truck platforms.
$2.01
Specifications
The 42011 Cup Plug is a high-strength sealing component used to close off unused or machined engine block ports. Its precision-formed design ensures a tight fit that resists pressure changes, heat cycling, and vibration commonly experienced in commercial trucks. By preventing coolant or oil leaks, the plug helps preserve engine longevity and efficiency. Whether you’re performing minor maintenance or a full engine rebuild, this cup plug offers reliable, long-lasting performance. Compatible with a variety of truck makes, it serves as an essential part of engine sealing systems.
Weight
0.02
Compatibility
Freightliner Cascadia (2008–2020)
Freightliner Columbia (2005–2015)
Kenworth T600 / T660 (2005–2016)
Kenworth T680 (2013–2020)
International ProStar (2007–2017)
Mack Pinnacle Series (2007–2019)
Peterbilt 386 (2005–2015)
Peterbilt 579 (2013–2020)
Volvo VNL Series (2008–2020)
Freightliner Columbia (2005–2015)
Kenworth T600 / T660 (2005–2016)
Kenworth T680 (2013–2020)
International ProStar (2007–2017)
Mack Pinnacle Series (2007–2019)
Peterbilt 386 (2005–2015)
Peterbilt 579 (2013–2020)
Volvo VNL Series (2008–2020)
Alternative Part Numbers
Caterpillar 42011
Cummins 42011
Detroit Diesel 42011
Freightliner 42011
International 42011
Kenworth 42011
Mack 42011
Navistar 42011
PACCAR 42011
Peterbilt 42011
Volvo 42011
Cummins 42011
Detroit Diesel 42011
Freightliner 42011
International 42011
Kenworth 42011
Mack 42011
Navistar 42011
PACCAR 42011
Peterbilt 42011
Volvo 42011
