Skip To Content

Specifications

The 321276 O-Ring stands out as a premium sealing component for heavy-duty engine and hydraulic systems in commercial trucks. Its manufacturing from high-grade elastomer ensures it can withstand high temperatures, fluid exposure, and pressure cycles common in demanding work environments. Once installed, the O-Ring delivers a consistent, leak-free seal that helps protect internal components from contaminants and fluid loss. Whether used in engine block ports, oil systems, coolant passages, or hydraulic lines, 321276 maintains system integrity under tough operating conditions. Ideal for routine maintenance, retrofits, or full overhauls, it supports safe, reliable, long-term operation.
Weight
0.02

Compatibility

Freightliner M2: 2005–2020
Freightliner Cascadia: 2008–2020
International WorkStar / ProStar: 2006–2018
Kenworth T600 / T800: 2005–2019
Kenworth T680: 2013–2020
Mack Granite / CHU Series: 2007–2020
Peterbilt 386 / 385: 2005–2015
Peterbilt 579 / 567: 2013–2020
Volvo VNL Series: 2007–2020

Alternative Part Numbers

  • Caterpillar 321276
  • Cummins 321276
  • Detroit Diesel 321276
  • Freightliner 321276
  • International 321276
  • Kenworth 321276
  • Mack 321276
  • Navistar 321276
  • PACCAR 321276
  • Peterbilt 321276
  • Volvo 321276

Related Parts

Oil Drain O-Ring
Mcbee-Interstate Mcbee Part No: A-23530682
$0.71 View Part Contact Us
Cylinder Sleeve O-Ring Kit
Mcbee-Interstate Mcbee Part No: M-680086C1
$5.46 View Part
Injector Kit O-Ring
Mcbee-Interstate Mcbee Part No: MCBN14INJ
$3.04 View Part
O-Ring
Pai Industries Part No: 121217
$0.65 View Part
O-Ring
Pai Industries Part No: 121237
$0.29 View Part
Injector O-Ring Kit
Pai Industries Part No: 121309
$26.17 View Part
O-Ring
Pai Industries Part No: 121316
$2.52 View Part
O-Ring
Pai Industries Part No: 121366
$4.97 View Part
O-Ring
Pai Industries Part No: 131360
$2.64 View Part
O-Ring
Pai Industries Part No: 621254
$0.96 View Part
O-Ring Kit
Pai Industries Part No: 321306
$89.35 View Part
O-Ring
Pai Industries Part No: 321390
$3.61 View Part
O-Ring
Pai Industries Part No: 621212
$1.94 View Part
O-Ring
Pai Industries Part No: 621252
$5.00 View Part
O-Ring
PAI INDUSTRIES Part No: 321271
$4.22 View Part

This website uses cookies to provide users the best possible experience. Learn more. Please also review our terms of use and terms of sale.