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SKU:
NLT1Q00307
Ships for free in 2–4 business days.
2-Pack Front Door Lock Knobs for 1999–2007 GM Trucks/SUVs – 15172121
$26.99
In Stock
$26.99
Sale price
$26.99
Regular price
New aftermarket two-piece front door lock lever/knob set replacing GM 15172121 for compatible 1999–2007 Cadillac, Chevrolet, and GMC trucks and SUVs.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- 1999–2007 Chevrolet Silverado and GMC Sierra—matching interior
- 2000–2006 Chevrolet Suburban/Tahoe and GMC Yukon—matching interior
- 2002–2006 Cadillac Escalade/EXT/ESV
- 2002–2006 Chevrolet Avalanche
Product Overview
A missing, cracked, or loose lock knob makes the door harder to lock manually and leaves the interior looking unfinished. This pair restores the visible front-door lock levers when the rods and latch mechanisms are still working.
Match the push-in attachment, color, shape, and front-door location. These are trim/lever pieces, not power-lock actuators or complete latches.
Key Features & Performance
- Two front-door lock knobs/levers
- Push-in replacement for matching GM lock rods
- Restores manual lock access and interior appearance
- Cross-references GM 15172121
Replaces Part Numbers
- 15172121
- 15772591
- 15764971
- 15048578
- Dorman 75397
Common Uses
- Replacing missing lock knobs
- Repairing a cracked knob that pulls off the rod
- Refreshing worn front-door interior hardware
Technical Specifications
- Product Type: Door lock lever/knob set
- Quantity: 2 pieces
- Position: Front doors
- Attachment: Push-in
- Condition: New
- Replacement Type: Aftermarket
Installation & Fitment
- Compare color and profile with the original interior
- Support the lock rod while removing the old knob
- Press straight onto the rod without bending it
- Confirm manual and power-lock travel before replacing trim
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Production date, engine type, transmission, trim, serial number, and previous repairs can change fitment. Compare the original part, mounting points, dimensions, connections, and listed reference numbers before purchase.
Frequently Asked Questions
Q: Will these fix a power lock that does not move? A: No. Diagnose the actuator, wiring, latch, and linkage.
Q: Are two knobs included? A: Yes. This listing is for a pair.
Q: What is the primary OEM number? A: GM 15172121.
Q: Do they fit rear doors? A: The verified application is the front side-door lock lever; compare the rear part separately.
Part Summary
keywords: 15172121 door lock knob, GM truck lock lever, Silverado door lock button, Escalade lock knob replacement, Dorman 75397 cross reference
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.