RLB-HILON Rear Vent Window Latch for 1999–2007 Chevy Silverado / GMC Sierra Extended Cab — OEM 12474945 Fit, Direct-Fit Replacemen

RLB-HILON's Extended Cab rear vent window latch (OEM 12474945) is a direct-fit replacement latch for the rear glass vent of 1999–2007 Chevrolet Silverado and GMC Sierra extended cab trucks.

This replacement rear glass door window vent latch is manufactured to match the original equipment fitment for extended cab models, restoring secure closure and smooth operation to the vent window. The part fits multiple model years and trims for Silverado 1500/2500 HD/3500 and GMC Sierra 1500/2500 HD/3500, and is sold as one piece. Installation instructions are not included, so basic hand tools and a bit of mechanical familiarity will help ensure a correct fit.

Will this latch fit my truck?

This latch is engineered for extended cab rear vent windows on specific Chevrolet and GMC trucks produced between 1999 and 2007. Confirm your vehicle is an extended cab (rear vent window present) and cross-check the OEM number 12474945 to ensure compatibility before purchasing.

• Compatible years: 1999–2007
• Models: Chevrolet Silverado 1500, 2500 HD, 3500
• Models: GMC Sierra 1500, 2500 HD, 3500
• OEM reference: 12474945 for fit confirmation

How does this replacement latch improve window operation?

Replacing a worn or broken vent latch restores proper sealing and prevents rattles or wind noise from the rear vent glass. The RLB-HILON unit is built to replicate the original latch geometry so the vent closes snugly and operates smoothly.

• Eliminates slack and unwanted movement in the vent window
• Improves weather sealing to reduce drafts and noise
• Matches original mounting points for straightforward replacement

What’s included and what tools will I need to install it?

Each listing includes one rear glass door window vent latch; installation instructions are not provided. Typical replacement requires basic hand tools, removal of the inner door panel or access caps, and careful alignment of the latch to the vent glass and striker.

• Package contents: 1 PC rear vent window latch (no instructions)
• Recommended tools: screwdrivers, trim tools, socket set
• Approximate time: 30–90 minutes depending on access and experience

How durable is the RLB-HILON replacement part?

The latch is manufactured to meet the fit and function of the original part, using materials intended for long-term automotive use. Proper installation and periodic checks will help maintain its performance and avoid premature wear.

• Constructed to match OE dimensions and mounting points
• Designed for exposure to typical truck cab conditions and use
• Inspect and lubricate moving surfaces for longer service life

Who is this for: This RLB-HILON rear vent window latch is for owners and technicians working on 1999–2007 Chevrolet Silverado or GMC Sierra extended cab trucks who need a direct-fit replacement for a broken, loose, or missing vent latch. It's ideal for do-it-yourself mechanics, restoration projects, and shop repairs where correct OEM fitment and reliable vent closure are required.