http://www.bing.com:80/search?q=Cummins+Towing+HeavySearch resultshttp://www.bing.com:80/s/a/rsslogo.gifhttp://www.bing.com:80/search?q=Cummins+Towing+HeavyCopyright © 2026 Microsoft. All rights reserved. These XML results may not be used, reproduced or transmitted in any manner or for any purpose other than rendering Bing results within an RSS aggregator for your personal, non-commercial use. Any other use of these results requires express written permission from Microsoft Corporation. By accessing this web page or using these results in any manner whatsoever, you agree to be bound by the foregoing restrictions.https://www.irv2.com/threads/best-and-worst-cummins-isl-400-engine-years.2012363/I’m looking to buy an ISL 8.8 or 8.9 engine with the common rail fuel system and without the DEF system. What are the best and worst years to buy? Also, any...Sun, 19 Apr 2026 01:08:00 GMThttps://www.irv2.com/threads/cummins-6-7-isb-oil-capacity-confusion-12-15-or-17-quarts.2187319/Members with the Cummins 6.7 ISB engine on Freightliner chassis report confusion over oil capacity, as the manual often lists 12 quarts, but the dipstick reads low even after filling to that spec. Several experienced RVers clarify that Fleetwood or Freightliner, not Cummins, typically install the dipstick and extension tube, which can affect readings. There are at least two different oil pan ...Fri, 17 Apr 2026 14:10:00 GMThttps://www.ramforum.com/threads/transfer-case-seal-failure-2024-ram-2500-6-7-l-cummins-diesel.215759/Hello fellow RAM owners. Steelbob611 / Texas here. I am new to this forum and a first time RAM truck owner after a lifetime of being a GM truck and SUV owner. Made the switch and purchased RAM 2500 Crew Cab 6.7 L Cummins Diesel. Delivered October 2024. I have put about 1600 miles of gentle break...Sat, 18 Apr 2026 02:56:00 GMThttps://www.irv2.com/threads/cummins-isl-400-engine-failure.1781230/Not to bring up an old problem with Cummins ISL 400 engines, but I didn't know it was an old problem until we recently (June 2017) experienced catastrophic engine failure and started searching the Internet for answers. I thought my experience might help someone else avoid trouble and "bank-...Sat, 18 Apr 2026 17:15:00 GMThttps://www.irv2.com/threads/finding-replacement-exhaust-manifold-for-2008-cummins-5-9-with-egr.2187576/Members are troubleshooting a significant exhaust leak on a 2008 Holiday Rambler with a 5.9 Cummins engine, which is unusual for that model year. The original poster is seeking recommendations for a replacement exhaust manifold that accommodates the EGR valve, noting that OEM parts are expensive and hard to source, with aftermarket options scarce. Several members suggest first diagnosing ...Tue, 14 Apr 2026 00:52:00 GMThttps://www.irv2.com/threads/cummins-isl9-engines-good-bad-or-ugly.2085965/The **Cummins ISL 425 HP** (often the ISL9 or ISL 8.9L, depending on year) is generally a **strong, reliable engine**, but like any heavy-duty diesel, it has some known issues worth factoring in—especially at higher mileages.Sat, 18 Apr 2026 10:06:00 GMThttps://www.irv2.com/threads/cummins-isx-600-cranks-but-won%E2%80%99t-start%E2%80%94lift-pump-or-electrical-issue.2186085/Member Title: Cummins 600 ISX Turns Over Fine, Won’t Start Members quickly focused on the lift pump as the likely culprit when a 2008 Magna with a Cummins 600 ISX would crank but not start, especially since the emergency stop wasn’t tripped and the tank was full.Wed, 15 Apr 2026 18:45:00 GMThttps://www.irv2.com/threads/cummins-oil-pressure.2083833/There are several threads in the Cummins engines forums about obtaining engine info direct from Cummins linked to your engine serial number . Maybe even a pdf of the engine owners manual / JMHO ; The Cummins ECM is monitoring all the engine functions , should oil pressure fall into a critical area you'd very soon be seeing engine derate and shut down warnings. Have you info on the brand of oil ...Tue, 14 Apr 2026 07:40:00 GMThttps://www.ramforum.com/threads/2024-2500-3500-6-7-cummins-good-bad.216450/It wasn't till the 2019 Cummins (new CGI block) you started hearing about engine failures. What “engine failures” are you hearing/posting about? I have had my ‘24 Ram 2500 w/6.7 CTD six months only, and it Tows beautifully and I’m having zero problems even when temps dropped to 15F.Mon, 20 Apr 2026 10:39:00 GMThttps://www.ramforum.com/threads/mopar-or-shell-rotella-oil-for-a-2022-cummins.192051/Just curious, my dealership uses Mopar products regarding maintenance for my new truck. My question is, should I purchase the Shell Rotella oil and Fleetguard filters and bring the oil with me when I get the oil change to possibly have them use this recommended oil rather than Mopar products...Sun, 19 Apr 2026 23:19:00 GMT