Rear Main Seal 3934486 For Select Cummins 4BT 6BT 6CTA 3.9 5.9 8.3 6.7 Engines

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Description

If you're working on a Cummins diesel – whether it's a 4BT, 6BT, 6CTA, or one of the 3.

Rear Main Seal 3934486 For Cummins Manufacturers - Aftermarket, Genuine

9L, 5.

Cummins Seal Kit 4089342 3934486 for sale online

9L, 8.
3L, or 6.
7L variants – you know that a leaking rear main seal is a headache you don't want.
This seal, part number 3934486, is a direct replacement for a bunch of original part numbers including 3901019, 3904323, 3909410, 3914386, and many more.

Fan Belt 3289235 8PK1755 for Cummins 4BT 6BT ISB 6CTA Engine

It's a standard part that handles the tough job of keeping oil where it belongs – inside the engine.

Rear Main Seal Housing Cummins 8.3L 6CTA Turbo Diesel Engine M939A2

It's unbranded, but it's made to OEM specs, so you're not gambling on fit or durability.
The seal is new and ready to install.

RETEN NYC RETEN CIGUEÑAL TRASERO CUMMINS 4BT 6BT 6B 8.3 130x150x12 REF

If you've got oil dripping between the engine and transmission, this is likely your fix.

RETEN CIGUENAL CUMMINS 4BT 6BT 6CT TRASERO

It's a critical part, so don't cheap out with something that might fail – this one's built to hold up to the torque and heat of a hard-working Cummins.

Whether you're overhauling a 5.
9 for a truck or keeping an 8.
3 industrial going, this rear main seal is a straightforward choice.

CPP 3913638 Rear Oil Seal Housing Mounting Bolts (89–18 Cummins 5.9L/6.7L) | CPP DIESEL

Just make sure you've got the right tools and some patience, and you'll be back on the road without leaving a trail of oil behind.

3934486 REAR SEAL (DRY) Suitable For Cummins® 3934486