Free API
Help
2021 GMC SIERRA 2500HD
6.6L V8 Duramax Diesel•RWD•AUTOMATIC•diesel•turbo
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor994Torque4977Fluid18DTC3734Battery2Maintenance0Recalls0
Fuel Pump Module · Component

Fuel Pump Lock Ring

for 2021 GMC Sierra 2500HD 6.6L V8 Duramax Diesel · RWD
Units
Torque
50lb-ft
68 Nm

Notes

Lock ring tool

Other components in Fuel Pump Module

For shop owners
Tired of looking specs up mid-job?
Auto Shop Base keeps torque specs, labor times and fluids right on the work order.
Talk to the ownerSee what's included
Built by a shop owner. Talk to Chris, not a sales rep.
🔌 Need this data in your app? It's all in the free API →
🔧 Built by master technician Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
Stuck on this repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
Share:XRedditFBWhatsAppThreadsEmail
⚠ STILL BEHIND THE PAYWALL
The 2021 GMC Sierra 2500HD repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the GMC Sierra 2500HD — $99 →
Building an app?
Free API key: 10 requests/day, 100/month, no card required.
Get an API key →
Run a shop?
A free website, SEO and Google reviews with your shop software. Auto Shop Base Professional, $250/mo, with our labor times on every estimate.
See what's included →