Description
Product Overview
The Vrytos Intake Manifold Gasket is a precision‑engineered component designed for 1989‑2009 Dodge 2500 and 3500 trucks equipped with Cummins ISB, QSB, and ISD engines ranging from 3.9L to 6.7L. Constructed from high‑grade graphite, the gasket offers excellent thermal stability, chemical resistance, and a superior sealing surface that conforms to the engine’s intake manifold contours. Its dimensions (7.08 x 5.9 x 0.39 inches) and lightweight design (0.96 ounces) ensure a perfect fit without adding unnecessary mass.
Usage
This gasket is intended for replacement of OE part numbers 3969988, 3931604, 3938158, 4429352, 5086721AB, and 5010480AB. It is ideal for professional mechanics, fleet maintenance shops, and DIY enthusiasts who need a reliable seal for intake manifolds on Dodge trucks. Install the gasket during routine engine rebuilds, after a leak diagnosis, or when upgrading to higher performance components. The graphite material tolerates the high‑temperature environment of the intake system, making it suitable for both daily driving and heavy‑duty applications.

Why Choose Us
Vrytos combines decades of automotive expertise with rigorous quality control. Each gasket undergoes dimensional verification and material testing to meet or exceed OEM specifications. Our graphite formulation resists deformation under heat cycling, reducing the risk of future leaks. Backed by a satisfaction guarantee, the product provides peace of mind for technicians who demand consistency and durability.
Key Features
- High‑grade graphite material delivers superior heat resistance and a tight seal.
- Exact OEM fit for Dodge 2500/3500 Cummins engines (OE 3969988 and related numbers).
- Lightweight design (0.96 oz) simplifies handling and installation.
- Resists chemicals and oil exposure, extending service life.
- Easy installation with no special tools required.
FAQ
Is this gasket compatible with both 12V and 24V Dodge trucks?
Yes, the gasket is designed for the full range of 1989‑2009 Dodge 2500 and 3500 models, covering both 12‑volt and 24‑volt electrical systems.
Can I install the gasket myself?
Absolutely. The gasket’s dimensions and material allow for straightforward installation using standard hand tools. Follow the service manual for torque specifications.
What should I do if I notice a leak after installation?
First, verify that the gasket is seated correctly and that all bolts are torqued to the manufacturer’s specifications. If the leak persists, inspect for surface contamination or damage to the mating surfaces.
How does graphite improve gasket performance?
Graphite maintains its shape under high temperatures, provides excellent compressibility, and offers natural lubricity, which helps create a uniform seal and reduces the chance of tearing during installation.
Is there a warranty on this product?
Vrytos offers a limited one‑year warranty against manufacturing defects. Contact our support team with your purchase details for assistance.




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