Coolant Filter Location, Cummins ISL 400

[Sealevel Ram]

Recommendation is to change the coolant filter.
I have searched the literature and the engine, but I can not find the location of this filter.
Anyone ever changed this on the ISL 400, circa 2004?
Would appreciate any advice.

[broadrun]

Not sure if it helps but i just recently swapped out my filter (ISC 330) and, underneath the coach, it is closer to the drivers side, and also closer to the rear of the vehicle but not completely to the back.

[Steve Ownby]

Originally Posted by Sealevel Ram

Recommendation is to change the coolant filter.
I have searched the literature and the engine, but I can not find the location of this filter.
Anyone ever changed this on the ISL 400, circa 2004?
Would appreciate any advice.

Some coach builders did not install this filter. It's not a Cummins supplied item.

[Dutch Star Don]

I looked all over on my 05 ISL and couldn't find one. After checking around, they quit using them on the ISL around 04-05.

[Sealevel Ram]

Thanks for the info Steve and Don.
Could be the reason I can't find it.

[spike45]

Originally Posted by Sealevel Ram

Recommendation is to change the coolant filter.
I have searched the literature and the engine, but I can not find the location of this filter.
Anyone ever changed this on the ISL 400, circa 2004?
Would appreciate any advice.

Cummins does not supply the coolant filter head with the engine. That stopped with early ISC. Chassis builder adds the coolant filter head. If you cannot find one, you may add a filter. Cummins stopped because it saved them money but they still sold the engine for the same price....nice, eh? Even if you use the OAT coolants which typically say you do not need a coolant filter, the filter does remove core sand and solids from the system. No coolant chemistry can overcome the damage caused by core sand, not even Fleetguard.