Goes in easy and works
"Goes in easy and works perfect"
Cummins
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SKU #: CMNS-3937111
MPN #: 3937111
Cummins 3937111 Front Main Cover Crankshaft Seal 89-07 Dodge 5.9L Cummins
Description
Is your Cummins leaking oil at the front of the engine? Chances are its your front main seal. This is a genuine Cummins direct replacement seal to get you back on the road with reliability.
Enter your zip and we'll see if installation is available.
- Request quotes from local installers at checkout
- Compare options and choose the best fit for your install
About WrenchConnected
WrenchConnected is an independent installation marketplace operating in partnership with Diesel Power Products.
How it works
After checkout, we route your vehicle info and part SKU to verified installation shops near you. Local installers review the job and submit competitive bids; you pick the shop you want based on price, reviews, and availability. Your name and email stay private until you select an installer.
Pricing
You pay for the bid from your preferred shop. The full amount is shown before you confirm — installers cannot add charges without your written consent. Payments are processed securely by Stripe.
Your privacy
During bidding, shops see only your service ZIP code, vehicle year/make/model, and the part SKU — not your name, email, or address. Only the shop you select receives your contact details after payment. We never sell your personal information.
More detail at wrenchconnected.com.
About Cummins
While we are obvious supporters of the aftermarket, there are times when it does make the most sense to stick with factory Cummins components for various upgrades or repairs. While we do not carry every component, we do stock items that we feel are a good choice when making the decision to go stock or aftermarket.
If you don't see what you're after, feel free to give us a call or send an e-mail to cs@dieselpowerproducts.com and we would be happy to assist.
If you don't see what you're after, feel free to give us a call or send an e-mail to cs@dieselpowerproducts.com and we would be happy to assist.
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Overall rating: 5.0 / 5 from 8 reviews.
AI Generated Review Summary
Summary topics
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Review highlights
Reviews
Oem
"Exactly what was needed and can't beat an oem seal"
Sealed my front cover
"Front cover was leaking. This product was a super spot on fitment and did the magic ! OEM when it needs to be, DONT buy any reproduction/copy from China :)"
Shipped fast and went in
"Shipped fast and went in without issue"
Can't beat some oem parts
"Went in good no leak yet, cummins oem is awesome"
Perfect seal
"Perfect seal would t buy any other brand other than Cummins"
I would by this again if needed
"Oem no issues."
Does what its supposed too
"Did its job nothin more to say"
Q&A
- Hi! I have installed a crank wear sleeve, will the oem part number work for that? I am installing a new timing cover, and want to install a new seal.
- Yes, the wear sleeve will work with a OEM style replacement seal.
- Does this come with the depth sitting installation tool? Probably not the right name for it I don't know what it's called. Basically the ring that sets the depth on the seal in the front cover.
- The secondary ring shown in the picture is the install tool. -Sands