121415 Cummins O-Ring | PAI

O-RINGPAI Part #: 121415OEM References: CUMMINS 3924605 CUMMINS 3925021 CUMMINS 3969698 DETROIT DIESEL A0179978945 Applications:CUMMINS 4B ENGINES 3.9Warranty: 2.0 year(s)

Warranty BackedPAI IndustriesFree Freight

JAK'S Part #JAKS-PAI-121415

Cross Ref3924605

Cross Ref3925021

Cross Ref3969698

Cross RefA0179978945

$6.99

In Stock — Ships Today if ordered by 3:00 PM MT

Secure Checkout 30-Day Returns Warranty Backed Ships Same Day

Not sure it's the right fit? Call a specialist

(720) 445-6249

Talk to a tech or text a photo of your part tag — we'll confirm fitment before you buy

Brand	PAI Industries
Part Category	Seals & O-Rings
Engine Make	Cummins
Engine Model	4B 3.9
Condition	New
Stage / Tier	Standard

O-RING

PAI Part #: 121415

OEM References:

CUMMINS 3924605
CUMMINS 3925021
CUMMINS 3969698
DETROIT DIESEL A0179978945

Applications:

CUMMINS 4B ENGINES 3.9

Warranty: 2.0 year(s)

This part supersedes and cross-references the following OEM, dealer, and competitor numbers. Searching any of these will land here.

Number
3924605
3925021
3969698
A0179978945

Don't see your number? We cross 1M+ OEM, dealer and competitor part numbers daily. Call or text (720) 445-6249 and a tech will match it by hand.

Cummins 4B 3.9

Warranty Backed. Every part is covered against defects in materials and workmanship. Call a specialist for the coverage details on this part.

Complete The Job