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GM / ACDelco  |  SKU: 12695942 & FC261

2017-2025 Silverado Sierra L5P Duramax Oil Filler Neck & Cap Kit Genuine OEM GM

$24.30


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

Make oil changes easier and upgrade your truck with this Genuine GM OEM Oil Filler Neck & Oil Cap Combo Kit, designed for 2017–2025 Chevrolet Silverado & GMC Sierra HD trucks with the 6.6L L5P Duramax engine.

This kit includes:
GM 12695942 Oil Filler Neck Tube – Factory on 2020+ L5P trucks
GM 12677347 / FC261 Engine Oil Cap – Correct L5P-specific oil fill cap

GM introduced the oil filler neck on 2020+ L5P models to make maintenance easier and reduce oil spillage during filling. Earlier 2017–2019 models did not come equipped with a filler neck — making this a highly recommended upgrade for owners who prefer to do their own oil changes.

All components are 100% Genuine GM OEM, ensuring perfect fitment, sealing, and long-term durability.

Features:
- Complete GM OEM Kit – Oil filler neck + oil fill cap
- Direct replacement for 2020–2025 L5P models
- Upgrades 2017–2019 trucks to factory-style filler neck setup
- Makes oil changes cleaner and easier
- Maintains proper oil system sealing
- High-quality, OE-grade materials
- Backed by General Motors engineering and testing

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 Oil Filler Neck & Cap Kit Genuine OEM GM

$24.30

Make oil changes easier and upgrade your truck with this Genuine GM OEM Oil Filler Neck & Oil Cap Combo Kit, designed for 2017–2025 Chevrolet Silverado & GMC Sierra HD trucks with the 6.6L L5P Duramax engine.

This kit includes:
GM 12695942 Oil Filler Neck Tube – Factory on 2020+ L5P trucks
GM 12677347 / FC261 Engine Oil Cap – Correct L5P-specific oil fill cap

GM introduced the oil filler neck on 2020+ L5P models to make maintenance easier and reduce oil spillage during filling. Earlier 2017–2019 models did not come equipped with a filler neck — making this a highly recommended upgrade for owners who prefer to do their own oil changes.

All components are 100% Genuine GM OEM, ensuring perfect fitment, sealing, and long-term durability.

Features:
- Complete GM OEM Kit – Oil filler neck + oil fill cap
- Direct replacement for 2020–2025 L5P models
- Upgrades 2017–2019 trucks to factory-style filler neck setup
- Makes oil changes cleaner and easier
- Maintains proper oil system sealing
- High-quality, OE-grade materials
- Backed by General Motors engineering and testing

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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