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GM GENUINE 12479059

Verified fitment Differential Pinion Shaft Lock Bolt · Fits 54 Configurations

GM GENUINE part number 12479059 is a differential pinion shaft lock bolt in the Drivetrain system. This catalog matches it to 54 year-and-engine configurations from 2019 to 2026.

Verified fitment includes 2026 Chevrolet Silverado 2500 6.6L V8 ; 2026 Chevrolet Silverado 2500 6.6L V8 DIESEL Turbocharged ; 2026 Chevrolet Silverado 3500 6.6L V8 ; 2026 Chevrolet Silverado 3500 6.6L V8 DIESEL Turbocharged ; 2026 GMC Sierra 2500 6.6L V8 DIESEL Turbocharged , plus 49 other configurations. See every vehicle this part fits.

Manufacturer specifications
Fits:
3.73 Rear Axle Ratio (GT4),Positraction Limited-Slip Rear Axle (G80), 11.50 RING GEAR AMERICAN AXLE
or:
3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80), 11.50 Ring Gear American Axle
Application data published for:
🇺🇸 US 🇨🇦 CA
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Frequently Asked Questions

What is GM GENUINE 12479059?

GM GENUINE part number 12479059 is a differential pinion shaft lock bolt with published application data for 54 vehicle configurations from 2019 to 2026. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.

Which vehicles does GM GENUINE 12479059 fit?

This catalog matches 12479059 to 54 year-and-engine configurations from 2019 to 2026. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.

Is GM GENUINE 12479059 OEM or aftermarket?

What matters is the published application data for this part number, not the label on the box. GM GENUINE 12479059 is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.

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