When maintaining or upgrading LS-based engines, securing the right intake manifold bolts with grommets is essential for reliable sealing and performance. This article aggregates five compatible options, highlighting fitment, OE references, and practical considerations to help you choose with confidence. Each listing targets common LS configurations found in 4.8L, 5.3L, and 6.0L V8 applications from 1999 to 2006, including popular Chevrolet and GM trucks and SUVs. Read on to compare compatibility and features at a glance.
| Product | Brand | Key Fitment |
|---|---|---|
| 10 PCS Intake Manifold Bolts with Grommet Seals (B0FM838FHL) | Unspecified | LS Engines 4.8L/5.3L/6.0L V8 1999-2006 |
| GM Genuine Parts 89017368 Engine Intake Manifold Bolt Kit | GENUINE PARTS | Chevrolet/Buick/GMC/Cadillac 1999-2006 LS V8 |
| 10 PCS Intake Manifold Bolts with Grommet Seals (B0F9P8YFBZ) | Riyhch Store | LS Engines 4.8L/5.3L/6.0L V8 1999-2006 |
| 5 PCS Intake Manifold Bolts with Grommet Seals (B0F9PFH386) | Riyhch Store | LS Engines 4.8L/5.3L/6.0L V8 1999-2006 |
| 5 PCS Intake Manifold Bolts with Grommet Seals (B0FM82YPFM) | Unspecified | LS Engines 4.8L/5.3L/6.0L V8 1999-2006 |
10 PCS Intake Manifold Bolts With Grommet Seals (LS Engines)
Compatibility and OE references are central to this option. The bolts are designed for LS engines in a 4.8L, 5.3L, and 6.0L V8 range from 1999 to 2006, aligning with OE numbers such as 89017783 and 89017368, among others. These bolts are marketed for multiple GM trucks, including Avalanche, Silverado, and Suburban variants, ensuring broad applicability for common American V8 platforms. The listing emphasizes fitment for 5.3L and 6.0L configurations used in popular pickups and SUVs, making it a practical choice for restoration or maintenance projects.
GM Genuine Parts 89017368 Engine Intake Manifold Bolt Kit
This offering from GM Genuine Parts emphasizes engineering and engineering validation for OE-grade parts. The kit is positioned to align with GM vehicle lines, and the product copy notes that GM engineers design and validate OE parts specifically for Chevrolet, Buick, GMC, or Cadillac applications. This framing highlights trustworthy compatibility for technicians seeking genuine replacement hardware that meets the original factory standards, potentially reducing alignment issues and wear over time.
10 PCS Intake Manifold Bolts With Grommet Seals (B0F9P8YFBZ)
This set also targets LS engines with the same broad compatibility as other listings in the group, emphasizing fitment for 4.8L, 5.3L, and 6.0L V8 configurations. It explicitly lists compatible GM vehicles and associated engine codes, including Avalanche and Silverado variants across 2002-2006 model years. The features stress replacement of OEM bolts with compatible grommets, which can help maintain a reliable seal under heat and vibration conditions common in LS-powered trucks and SUVs.
5 PCS Intake Manifold Bolts With Grommet Seals (B0F9PFH386)
The fifth listing narrows the set to five bolts with grommets, still targeting LS engines in the common 4.8L/5.3L/6.0L range. It details adaptation for several GM SUVs and trucks, including Yukon, Yukon XL, Cadillac Escalade, and Tahoe lines, which broadens applicability to larger GM sport/utilitarian vehicles. The focus is on providing reliable seal and bolt integration while preserving OE-style fit and gasket integrity during maintenance cycles.
5 PCS Intake Manifold Bolts With Grommet Seals (B0FM82YPFM)
This listing emphasizes compatibility with a wide array of GM vehicles including Suburban, Tahoe, and Cadillac Escalade variants within the 1999-2006 window. It highlights fitment for 5.3L ensures the product aligns with mid-range LS builds. The features reiterate OE-number compatibility and a replacement approach for 89017783, 89017368, and related part numbers, underscoring ease of matching the correct hardware for LS exchanges or upgrades.
Buying Guide: Key Purchase Considerations
When selecting intake manifold bolts with grommets for LS engine applications, consider these factors to optimize reliability and service life.
- Compatibility: Confirm engine displacement (4.8L, 5.3L, or 6.0L) and year range (1999–2006) to ensure correct threading and length. Look for OE or GM-engineered parts when possible.
- OE References: Matching OE numbers (such as 89017783 and 89017368) can improve fit and sealing integrity, reducing the risk of vacuum leaks and manifold warping.
- Material and Sealing: Grommet integrity matters in high-heat LS applications. Check for high-quality seals and corrosion-resistant bolts to resist torque loss and oil exposure.
- Vehicle Coverage: Ensure the listing covers the specific GM vehicle family you own (Avalanche, Silverado, Suburban, Tahoe, Yukon, Escalade, etc.) to avoid adapters or mismatches.
- Quantity and Replacement Strategy: Choose a set size that matches your service plan. Replacing all bolts in one job can prevent uneven clamping and future leaks.
- Brand and Warranty: Genuine parts or reputable aftermarket options may offer better warranties or support for long-term reliability.
- Installation Considerations: Use proper torque specifications and a calibrated torque wrench. Clean bolt threads and mounting surfaces to ensure an even seal and prevent thread damage.
- Cost vs. Risk: While OEM components may be pricier, they often provide the best balance of fit, durability, and peace of mind for critical sealing hardware.
- Warranty and Returns: Check return policies in case fitment issues arise, especially with aftermarket kits that reference multiple OE numbers.
In sum, selecting the right intake manifold bolt and grommet kit hinges on precise fitment to your LS engine, OE-number alignment, and vehicle-specific compatibility. A kit that clearly lists 4.8L, 5.3L, and 6.0L V8 engines with references to common GM family vehicles tends to deliver the most straightforward installation and dependable sealing across daily driving conditions.