HealeyBob60 Report post Posted July 31 What is the filter looking canister next to the oil filter on a cummins ISL? 2003 vintage. Share this post Link to post Share on other sites
campcop Report post Posted July 31 A picture would help. It could be the fuel filter or fuel/ water separator. Is it back plastic? Share this post Link to post Share on other sites
wildebill308 Report post Posted August 1 What is the number on it? Bill Share this post Link to post Share on other sites
rayin Report post Posted August 2 (edited) That is where the coolant filter is on my engine. If the coolant is the new OAT type a plain filter is used. If the coolant is the OEM green type a pre-charged filter must be used. Edited August 2 by rayin Share this post Link to post Share on other sites
jleamont Report post Posted Wednesday at 11:16 PM On 8/1/2022 at 8:31 PM, rayin said: That is where the coolant filter is on my engine. If the coolant is the new OAT type a plain filter is used. If the coolant is the OEM green type a pre-charged filter must be used. YUP, coolant filter. Share this post Link to post Share on other sites
