LLYZFED Ignition & Door Lock Cylinder Set for Chevy/GMC C/K 1988–1994 — Direct-Fit Ignition with 2 Door Cylinders and 2 Keys

If your truck or GM car refuses to turn the key, or the doors no longer lock smoothly, this LLYZFED set supplies a direct-fit ignition lock cylinder plus two door lock cylinders and two keys so you can regain secure, reliable access. Designed to match factory dimensions and common replacement part numbers, the kit eliminates the need to source multiple components separately and helps you get back on the road with a single installation.

Which vehicles will accept this replacement lock cylinder set?

This kit covers a broad range of Chevrolet and GMC vehicles—mainly C/K full-size pickups and many related GM models from the 1980s and 1990s. It lists multiple OEM cross-reference numbers so you can confirm compatibility against your vehicle’s original part number.

• Fits Chevy C1500/C2500/C3500 and K1500/K2500/K3500 pickups (1988–1994).
• Also compatible with Blazer, Suburban, S10, Camaro, and other GM passenger models across 1982–1999 ranges.
• GMC coverage includes Sierra, Jimmy, Sonoma, Yukon, Topkick, and medium-duty trucks in stated years.
• Cross-references include 924-791, 12300443, D1414B, LC1430, LC1428 and several OEM numbers for verification.

How simple is installation and what comes in the kit?

The kit is engineered for direct replacement of worn or damaged cylinders and aims to use the factory mounting points and retaining clips. Installation difficulty varies by model and vehicle year—most experienced DIYers or professional technicians can swap the cylinders without replacing the entire lock assembly.

• Includes 1 ignition lock cylinder, 2 door lock cylinders, and 2 matching keys.
• No rekeying of multiple locks required when replacing both door cylinders and ignition together.
• Uses the same mounting interface as original components to streamline fitment.
• Basic hand tools and vehicle-specific removal steps typically required.

What should I check before ordering to ensure fitment?

Confirm the year, make and model of your vehicle and compare the OEM replacement numbers listed on the product page with the number stamped on your original cylinder. Some GM models used different lock variations across years, so verifying the part references avoids returns and delays.

• Compare numbers: 924-791, 12300443, D1414B, 701400, LC1430, LC1428, and others shown.
• Inspect the existing cylinder’s mounting style and key profile to match this kit.
• Check whether your vehicle needs additional ignition switch components beyond the cylinder.
• Consult a service manual or dealer with your VIN if unsure about exact OEM fitment.

Will this kit improve security and convenience compared to a single replacement part?

Replacing ignition and door cylinders together ensures the keys operate all locks uniformly and removes mismatched key issues. Two new door cylinders plus an ignition cylinder and matching keys deliver both convenience and restored locking smoothness without needing multiple separate parts orders.

• Unified key set for ignition and doors reduces pocket clutter and confusion.
• New tumblers and springs restore smooth turning and reduce jamming risk.
• Replacing all primary cylinders at once prevents future key incompatibility.
• Cost-effective compared with sourcing individual OEM cylinders separately.

Who is this for: This LLYZFED lock cylinder set is aimed at owners, mechanics, and restoration shops working on Chevrolet and GMC full-size trucks and many related GM models from approximately 1982–1999. It’s ideal for anyone facing a worn ignition cylinder, sticky door locks, or mismatched keys who wants a complete, ready-to-install replacement that matches common OEM reference numbers.