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GM / ACDelco  |  SKU: 12677347 / FC261

2017-2025 Silverado Sierra L5P Duramax Engine Oil Cap Genuine GM 12677347 / FC261

$16.27


Product Care information

At BackWoods Diesel, we ensure all parts are stored in a clean, dry, and temperature-controlled environment to prevent damage. Our team inspects each part for quality and maintains them according to manufacturer guidelines before shipping.

Delivery and Shipping

At BackWoods Diesel, we prioritize fast and reliable shipping. All orders are carefully packed and dispatched promptly to ensure your parts arrive safely and on time, so you can keep your projects running smoothly without delay.

We deliver top-quality parts with fast, reliable shipping so you can keep your diesel projects moving without missing a beat!

Description

Replace your worn out or missing oil cap with the Genuine GM 12677347 / FC261 Engine Oil Cap, designed specifically for 2017–2025 Chevy Silverado & GMC Sierra HD trucks equipped with the 6.6L L5P Duramax diesel.

This is an OEM GM/ACDelco part, engineered and tested to meet the same durability and performance standards as the cap that came on your truck from the factory. Perfect fit, proper sealing, and long-term reliability — backed directly by General Motors.

Features:
- Genuine GM / ACDelco OE Part
- Correct fit for L5P 6.6L Duramax engines (2017–2025)
- Maintains proper oil system sealing and pressure
- Direct replacement for factory oil fill cap
- Durable OE-grade materials for long service life
- Backed by General Motors quality & testing

Part Numbers:
GM Part Number: 12677347
ACDelco Part Number: FC261
Replaces: 12673857, 12683621
UPC: 808709554943

Fitment:
2017–2025 Chevrolet Silverado 2500HD / 3500HD (6.6L L5P Duramax)
2017–2025 GMC Sierra 2500HD / 3500HD (6.6L L5P Duramax)

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GM / ACDelco

2017-2025 Silverado Sierra L5P Duramax Engine Oil Cap Genuine GM 12677347 / FC261

$16.27

Replace your worn out or missing oil cap with the Genuine GM 12677347 / FC261 Engine Oil Cap, designed specifically for 2017–2025 Chevy Silverado & GMC Sierra HD trucks equipped with the 6.6L L5P Duramax diesel.

This is an OEM GM/ACDelco part, engineered and tested to meet the same durability and performance standards as the cap that came on your truck from the factory. Perfect fit, proper sealing, and long-term reliability — backed directly by General Motors.

Features:
- Genuine GM / ACDelco OE Part
- Correct fit for L5P 6.6L Duramax engines (2017–2025)
- Maintains proper oil system sealing and pressure
- Direct replacement for factory oil fill cap
- Durable OE-grade materials for long service life
- Backed by General Motors quality & testing

Part Numbers:
GM Part Number: 12677347
ACDelco Part Number: FC261
Replaces: 12673857, 12683621
UPC: 808709554943

Fitment:
2017–2025 Chevrolet Silverado 2500HD / 3500HD (6.6L L5P Duramax)
2017–2025 GMC Sierra 2500HD / 3500HD (6.6L L5P Duramax)

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