2025-2026 GMC Sierra 2500 12736198 6.6L Used OEM Exhaust Muffler
This listing is for a used OEM GMC exhaust muffler for 2025-2026 GMC Sierra 2500. Aftermarket performance mufflers, universal exhaust parts, motorcycle/ATV/small-engine exhausts, hangers, brackets and tips are excluded from this catalog.
OEM part number coverage
Detected OE/reference number: 12736198. Every different full detected number is preserved as a hard material fitment distinction.
Muffler fitment details
- Part Numbers: 12736198
- Configuration: 6.6L
- Year Range: 2025-2026
- Vehicle: 2025-2026 GMC Sierra 2500
- Part Type: Exhaust muffler / muffler assembly
- Condition: Used OEM
- Shipping: Free nationwide U.S. shipping
- Warranty: 1-year replacement warranty
- Returns: 30-day returns
Verify before ordering
Compare VIN, exact OE/reference number, engine, drivetrain, body style, left/right position, active-exhaust options, pipe diameter, flange locations, hangers and exhaust layout before purchase.
Source inventory reference: 2025 2026 Engine Cat Muffler Silverado Sierra 2500 Pickup 12736198 6.6L
1-year replacement warranty. See the warranty policy for complete terms.
