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Details
Details
- Brand:
- SKU:
11546959
- GTIN: 00195491146594
- UPC: 195491146594
- Other Names:
11546959
- Description: GM Genuine Parts Bolts are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These bolts fasten vehicle components together. GM Genuine Parts are the true OE parts installed during the production or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
bolt - Condition: New
Additional Information
Additional Information
| FITMENT | Broadly fits GM Gen V small‑block LT family engines across Chevrolet, GMC, and Cadillac from 2014‑present, including 5.3L (L83/L84/L82), 6.2L (L86/L87/LT1/LT4) applications; also used on LV3 4.3L V6 truck engines and commonly included in Gen V LT head bolt kits. One engine typically requires 19 of this long bolt (11546959) plus one short bolt (11611976). Chevrolet Silverado 1500 (2014-2025): 4.3L V6 LV3, 5.3L V8 L83, 5.3L V8 L8B (eAssist), 5.3L V8 L82, 5.3L V8 L84, 6.2L V8 L86, 6.2L V8 L87 GMC Sierra 1500 (2014-2025): 4.3L V6 LV3, 5.3L V8 L83, 5.3L V8 L8B (eAssist), 5.3L V8 L82, 5.3L V8 L84, 6.2L V8 L86, 6.2L V8 L87 Chevrolet Suburban (2015-2024): 5.3L V8 (2015-2020), 5.3L V8 L84 (2021-2024), 6.2L V8 L87 (2021-2024) Chevrolet Tahoe (2015-2024): 5.3L V8 (L83 2015-2020; L84 2021-2024) GMC Yukon XL (2015-2024): 5.3L V8 (2015-2020), 6.2L V8 (2015-2020), 5.3L V8 L84 (2021-2024), 6.2L V8 L87 (2021-2024) Chevrolet Camaro (2016-2024): 6.2L V8 LT1 (SS, LT1), 6.2L V8 LT4 (ZL1) Chevrolet Corvette (2014-2025): 6.2L V8 LT1 (2014-2019), 6.2L V8 LT4 (2015-2019), 6.2L V8 LT2 (2020-2025) Cadillac Escalade ESV (2015-2024): 6.2L V8 (2015-2020), 6.2L V8 L87 (2021-2024), 6.2L V8 LT4 (Escalade-V 2023-2024) Cadillac CTS-V (2016-2019): 6.2L V8 LT4 Cadillac CT5-V Blackwing (2022-2025): 6.2L V8 LT4 |
| SYMPTOMS | Blown head gasket or insufficient clamping can show as coolant loss, white exhaust smoke, engine misfire (e.g., DTC P0300), overheating, unexplained coolant in oil (milky oil), or pressurized cooling system after cold start. |
| TROUBLESHOOTING | |
| INSTALLATION | This is a torque‑to‑yield (single‑use) fastener. Always replace removed head bolts—do not reuse. Follow the GM service manual (SI) for the exact torque + angle sequence and pattern. Clean and chase block threads, inspect for coolant/oil in bolt holes, and lightly oil threads/under‑head ONLY if specified by GM for your engine. |
| MAINTENANCE | |
| GENERAL NOTES | Gen V LT engines typically use 19 long bolts (this PN) and 1 shorter front bolt (PN 11611976) per engine. Performance builds often substitute ARP studs/bolts; if doing so, follow the hardware maker’s torque specs. |
| FAULT CODES | |
| REPLACEMENTS | 11611849 |
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