Cummins 3918188 Sealing Washer

Compatible With 4BT3.9, 6BT5.9, ISB3.9, ISB4.5, QSB3.9, and QSB4.5 Engines

Genuine Cummins Part

OEM #: 3918188SKU: 3918188

Ships in 4-5 days

Sale price$10.90

Taxes and Shipping are calculated at checkout

Special Order Item - not eligible for return

This is a genuine Cummins Sealing Washer for 4BT3.9, 6BT5.9, ISB3.9, ISB4.5, QSB3.9 and QSB4.5 engines.

SKU 3918188
OEM Number 3918188
Part Type Miscellaneous
OEM Brand CUMMINS

Aftermarket warranty

View full warranty details

Genuine Cummins parts warranty

View genuine warranty details
  • Orders are processed the same or next business day
  • Expedited shipping options available at Checkout
  • If same-day shipping is critical, please call to confirm availability

View full shipping policy

Call any of our friendly Parts Dept. Specialists with your engine serial number, and we can quickly verify whether this part is the correct part for your engine — no guesswork.

Phone: 888.687.0539

Don't know how to find your engine serial number? Go to our Engine Help Center for assistance.

Frequently bought together

Diesel Parts Direct logo
CUMMINS Cummins 3918192 Sealing Washer For Diesel Engines
Sale priceFrom $1.35
Ships in 4-5 days
Choose options
Diesel Parts Direct logo
CUMMINS Cummins 3924726 Valve,Check For Diesel Engines
Sale price$209.53
Ships in 4-5 days
Diesel Parts Direct logo
DS-3903380 Return Line Gasket For Cummins EnginesDS-3903380 Return Line Gasket For Cummins Engines - view 2
CUMMINS DS-3903380 Return Line Gasket For Cummins Engines
Sale price$1.91
In Stock
Gasket illustration – not the actual partDiesel Parts Direct logo
CUMMINS Cummins 3819900 Turbocharger Gasket For Diesel Engines
Sale priceFrom $1.53
Ships in 4-5 days
Choose options
Diesel Parts Direct logo
Diesel Parts Direct logo