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- Part Number: M-4089649
- Est. Ship Time: Usually Ships By Next Business Day

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Fits all 89-98 Dodge 5.9L 12 Valve Cummins Diesels
Includes:
Standard Thickness Head Gasket
7mm to 9mm injector adapter bushings (only needed on 89-91 trucks)
Intake Gasket (long rectangular)
Exhaust Manifold Gaskets
Grid Heater Gaskets
Turbo Drain Gasket
Injector copper seals
Various small seals
Turbo to Manifold Gasket
Valve Cover Gasket
Top Hat Style Valve Seals (new style valve seals included, machining is needed to use them if you want replace your old style valve seals)
Full list:
1x M-3283335 Gasket - Cylinder Head
1x M-3823921 Gauge - Cylinder Head
1x M-3883284 Seal - O-ring
6x M-3900808 Washer
1x M-3901356 Gasket
1x M-3902425 Washer - Sealing
6x M-3903380 Seal - Banjo
1x M-3906694 Seal - Rectangular Ring
1x M-3906773 Washer
6x M-3910824 Seal - Rocker Cover - Bolt
1x M-3912220 Gasket - Metal
2x M-3918188 Washer
6x M-3919358 Sleeve - Injector
6x M-3923261 Seal - Injector
1x M-3923331 Seal - Thermostat
6x M-3930324 Seal - Injector
6x M-3930906 Gasket - Valve Cover
6x M-3935449 Isolator - Noise
1x M-3936876 Seal - Rectangular Ring
1x M-3938152 Gasket - Int Manifold
2x M-3963988 Washer - Sealing
2x M-3969988 Gasket
1x M-5264569 Gasket - Oil Drain
6x M-3937142 Injector Seal - Mid Range XPI
6x M-3929881 Gasket - Exh Manifold
12x M-3957912 Seal - Valve Stem
The new style valve seals are shaped like a top hat and is secured with the valve spring. the Cummins part number is: M-3957912.
We have found that upgrading to the new style valve seals requires machine-shop services.
We recommend you purchase the old style valve seals separately, we offer them in the drop-down option. Use those seals instead. Alternately, you can purchase this kit with the old style seals, click here.
McBee part number: M-4089649
