12673449 Throttle Body 72mm for Chevrolet Silverado & GMC Sierra — Bulk & OEM Supply
This 72mm throttle body assembly (12673449) is designed for Chevrolet Silverado and GMC Sierra heavy-duty truck applications, including the 2500, 3500, 4500 HD, 5500 HD, and 6500 HD from 2017 onward. The OE-referenced throttle body is suitable for aftermarket replacement, wholesale, and distribution applications across the 6.0L and 6.6L V8 gasoline engine configurations used in these trucks.
The assembly features a 72mm bore, die-cast aluminum alloy throttle housing, stainless steel butterfly valve, and Viton seals. Built to VDO/Pierburg OEM specifications, this throttle valve assembly uses a dual-redundant throttle position sensor (TPS) design for stable throttle position feedback and consistent operation. Each unit is 100% factory tested for thermal cycling, airtightness, and full-stroke angle calibration before shipment, and is backed by a 12-month warranty.
LOREADA Auto Parts manufactures throttle bodies, throttle body assemblies, sensors, and related engine control and air-intake components. Operating under IATF 16949 quality management standards, LOREADA produces OE-referenced products for aftermarket and OEM applications. OEM and ODM support is available based on customer samples, OE references, technical drawings, specifications, and other product requirements.
For wholesale, distribution, or bulk sourcing of the 12673449 throttle body, customers can provide the required quantity, vehicle or engine application, OE reference, or product specifications. LOREADA can provide product specifications, MOQ, lead time, packaging requirements, and OEM/ODM options based on the sourcing requirements.
| 12673449 Throttle Body for Chevrolet Silverado / GMC Sierra HD Specifications | |
|---|---|
| Item | Details |
| Product SKU | LRD-TB811 |
| Product Name | Electronic Throttle Body |
| OE Numbers | 12673449 |
| Bore Size | 72mm |
| Housing Material | Die-Cast Aluminum Alloy |
| Butterfly Valve | Stainless Steel |
| Seals | Viton |
| Application | Chevrolet Silverado / GMC Sierra HD |
| Replacement Type | OE-Referenced Replacement |
| Warranty | 12 Months |
| Customization | OEM / ODM Available |
Application Details:
CHEVROLET SILVERADO 2500 2017-2019
CHEVROLET SILVERADO 3500 2017-2019
CHEVROLET SILVERADO 4500 HD 2019
CHEVROLET SILVERADO 5500 HD 2019
CHEVROLET SILVERADO 6500 HD 2019
GMC SIERRA 2500 2017-2019
GMC SIERRA 3500 2017-2019
- OEM-Grade Quality – VDO/Pierburg OEM specification, direct replacement.
- Dual Redundant TPS – Prevents idle fluctuations, hunting, and false error codes.
- 100% Factory Tested – Thermal cycling, airtightness, and full-stroke angle calibration.
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