The Multiquip 8971172420 Gasket Gear Case DCA-45USJ 4JG1 is a genuine OEM gasket designed for the DCA-45USJ ultra-silent diesel generator. As a direct OEM replacement, this gasket is manufactured to the exact material grade and compression tolerances required by the 4JG1 engine's gear case, ensuring a proper oil-tight seal from the moment it is installed. Sourced directly through authorized Multiquip supply channels, this is the correct part for DCA-45USJ units requiring gear case service or rebuild work.
Key Features
- OEM-Grade Sealing Material — Manufactured to the compression and material specifications required by the 4JG1 engine's gear case, delivering the oil-tight integrity the original design demands.
- Direct Drop-In Replacement — Matches the original gasket profile and bolt-hole pattern of the DCA-45USJ gear case for a clean, straightforward installation during service or rebuild.
- Confirmed Fitment for DCA-45USJ — Verified for Multiquip DCA-45USJ ultra-silent diesel generator units equipped with the Isuzu 4JG1 engine.
- Protects Gear Case Integrity — A properly seated gear case gasket prevents oil migration and external contamination, keeping the gear train lubricated and running at full efficiency.
- Fuel and Oil System Safety — A failed or improperly seated gear case gasket can cause oil leaks that create fire hazards and accelerate engine wear; using the correct OEM gasket is critical during any gear case service.
The gear case gasket forms the sealing interface between the gear case cover and the engine block on the Isuzu 4JG1 engine. Its job is to prevent engine oil from escaping the gear train cavity while keeping dirt and moisture out. When this gasket deteriorates, cracks, or is disturbed during service without proper replacement, oil leaks can develop that starve the gear assembly of lubrication and lead to accelerated wear or engine damage. Replacing it with the correct OEM gasket — part 8971172420 — ensures the seal is restored to the original specification every time.
Part Details
| Part Number | 8971172420 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Gasket Gear Case DCA-45USJ 4JG1 |
Compatibility & Fitment
| Name | Model |
|---|---|
| DCA-45USJ | DCA-45USJ |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
