★★★★★ 5
Good quality and great service
Model: 17785
Quality part, met expectations.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
LBZ LLY LMM Duramax 2004.5-10 Mouth Piece Resonator Plug
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
LBZ LLY LMM Duramax 2004.5-10 Mouth Piece Resonator PlugDuramax Resonator Large Plug Required when removing bulky resonator "noise reduction" box from the intake tube Compatible with; 2004. 5 to 2010 Duramax LLY LBZ LMM 6. 6L ONLY Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum Includes: 1 "Mouth Piece" Resonator plug w Orings Satin Aluminum Finish for durability and corrosion resistance
Quick Dispatch:
Your LBZ LLY LMM Duramax 2004.5-10 Mouth Piece Resonator Plug orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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You'll receive a tracking link by email once your LBZ LLY LMM Duramax 2004.5-10 Mouth Piece Resonator Plug ships.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.7 ★★★★★
Based on 750 reviews
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Product Reviews
★★★★★ 5
Great starter
Model: 17785
Great fit but I did have trouble getting the switch plug in to click into place but after that worked perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
★★★★★ 4
La calidad
Model: 17825
Muy bien
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 1, 2025
★★★★★ 5
🤗
Model: 17942
Excelente producto. Funciona perfectamente, se nota de buena calidad y la instalación fue sencilla. Llegó rápido y bien empacado. Muy satisfecho con la compra, lo recomiendo.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
★★★★★ 5
Starter
Model: 17825
Great OEM part for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
