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Elring 456.643 Exhaust Manifold Gasket
| Brand | Elring 456.643 |
|---|---|
| Goods tariff number | 8409999990 |
| Fits | Chevrolet and GMC · 16 vehicles |
Perfect fit. Reliable sealing helps minimize leaks and maximize engine efficiency.
Exhaust manifold gasket for dependable sealing performance.
Cross-references 12676148, 12705094 and 13345900 for the same application. See all 3.
Elring Exhaust Manifold Gasket 456.643
Elring 456.643 is an exhaust manifold gasket built for direct-fit sealing on select heavy-duty Chevrolet and GMC trucks. It is used to help maintain exhaust system integrity, reduce leakage at the manifold-to-cylinder head joint, and support consistent engine operation under high heat.
Key Features
- Exhaust manifold gasket for OE-style sealing performance
- Elring part number 456.643 for easy identification
- Fits select Chevrolet Silverado 2500 HD and Silverado 3500 HD applications
- Fits select GMC Sierra 2500 HD and Sierra 3500 HD applications
- Paraphrased from manufacturer guidance: engineered for reliable sealing to help minimize leaks and support engine efficiency
- Cross-references GM OE part numbers 12676148 and 12705094 for the same application
Fitment
- Fits 2023 Chevrolet Silverado 2500 HD, N/A
- Fits 2016-2019 Chevrolet Silverado 2500 HD, N/A
- Fits 2016-2019 Chevrolet Silverado 3500 HD, N/A
- Fits 2023 GMC Sierra 3500 HD, N/A
- Fits 2017-2019 GMC Sierra 3500 HD, N/A
- Fits 2017-2019 GMC Sierra 2500 HD, N/A
What It Helps Address
- Exhaust leaks at the manifold sealing surface
- Noise caused by a failing manifold gasket
- Loss of exhaust sealing after service or replacement work
- Reduced engine efficiency related to escaping exhaust gases
Installation Notes
Verify the manifold and cylinder head sealing surfaces are clean, flat, and free of old gasket material before installation. Confirm the application by year, make, and model before ordering; this gasket is listed for 2023 Chevrolet Silverado 2500 HD, 2016-2019 Chevrolet Silverado 2500 HD, 2016-2019 Chevrolet Silverado 3500 HD, 2023 GMC Sierra 3500 HD, 2017-2019 GMC Sierra 3500 HD, and 2017-2019 GMC Sierra 2500 HD.
Quality Assurance
Elring is known for sealing components used in engine and exhaust service, and this gasket is supplied as a precision-fit replacement for the listed Chevrolet Silverado and GMC Sierra heavy-duty applications. Part number 456.643 is identified for straightforward ordering and service matching.
| Year | Make | Model | Submodel | Body Type | Drive Type | Liters | Cylinders | Fuel Type | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2023 | Chevrolet | Silverado 2500 HD | Custom | Crew Cab Pickup | RWD | 6.6L | V8 | — | — |
| 2023 | GMC | Sierra 3500 HD | Pro | Cab & Chassis | RWD | 6.6L | V8 | — | — |
| 2019 | Chevrolet | Silverado 2500 HD | — | — | RWD | 6.6L | V8 | DIESEL | — |
| 2019 | Chevrolet | Silverado 3500 HD | — | — | RWD | 6.6L | V8 | DIESEL | — |
| 2019 | GMC | Sierra 2500 HD | — | — | RWD | 6.6L | V8 | DIESEL | — |
| 2019 | GMC | Sierra 3500 HD | — | — | RWD | 6.6L | V8 | DIESEL | — |
| 2018 | Chevrolet | Silverado 2500 HD | — | — | RWD | 6.6L | V8 | DIESEL | — |
| 2018 | Chevrolet | Silverado 3500 HD | — | — | RWD | 6.6L | V8 | DIESEL | — |
| 2018 | GMC | Sierra 2500 HD | — | — | RWD | 6.6L | V8 | DIESEL | — |
| 2018 | GMC | Sierra 3500 HD | — | — | RWD | 6.6L | V8 | DIESEL | — |
| 2017 | Chevrolet | Silverado 2500 HD | — | — | RWD | 6.6L | V8 | DIESEL | — |
| 2017 | Chevrolet | Silverado 3500 HD | — | — | RWD | 6.6L | V8 | DIESEL | — |
| 2017 | GMC | Sierra 2500 HD | — | — | RWD | 6.6L | V8 | DIESEL | — |
| 2017 | GMC | Sierra 3500 HD | — | — | RWD | 6.6L | V8 | DIESEL | — |
| 2016 | Chevrolet | Silverado 2500 HD | High Country | Crew Cab Pickup | RWD | 6.6L | V8 | — | — |
| 2016 | Chevrolet | Silverado 3500 HD | High Country | Crew Cab Pickup | RWD | 6.6L | V8 | — | — |
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