Genuine GM 12571609 Valve Lifter

Saved me thousands of dollars by buying and installing myself! Worked perfectly and the misfire on my truck went away as soon as I installed it!

The Genuine GM 12571609 Valve Lifter is a key component if you're replacing or rebuilding an engine with Active Fuel Management (AFM) in GM cars or trucks. When installing a new or reconditioned engine, replacing this part is required, and it plays a critical role in controlling the AFM system.If you're dealing with a misfire and have already tried all the usual fixes, this valve lifter might be the culprit. I highly recommend sticking with the genuine GM part—while the price is similar to aftermarket options, the quality and reliability are unmatched. I hope I never have to buy this part again, but if I do, I wouldn't hesitate because the factory part is just that good.For anyone needing to replace it, this is a solid investment in your vehicle’s long-term performance.

I just had the top end of the motor done on my 2007 Suburban 5.3l with AFM. I purchased this VLOM as its recommended when you replace lifters. The top end of my motor was not all bad, I just had a collapsed AFM lifter, but while I had it apart it made sense to have cylinder heads done. My mechanic (who’s also a relative) and I got it back together only to have a misfire. We have talked with the local Chevy deal and a service tech there, along with several other shops. We have tested every possible issue to troubleshoot the misfire. Everything points to this new VLOM that had ZERO miles on it before the misfire started. Today we will pull it of to test and double check the VLOM. What does it take to replace or refund If in fact this part is defective?We thought it was a bad VLOM. In fact it was the Kevlar (plastic) lifter guide that was bad. That was the only thing we didn’t replace. When we had it all apart, we replaced all the lifter guides. Make sure you replace all the lifter guides. Also, if you have higher miles (150K or more) replace the PCV valve. The PCV is built into the drivers side valve cover. If you do not replace this you will get a little white smoke on start up, that does away after about 20 seconds. I replaced this and all is perfect! Engine seems to have more get up and go than when it was new.

After getting a collapsed AFM valve lifter in my wife's 2007 Tahoe, we ordered this VLOM along with full valve lifter kit. Car drives like new again! We also took the precaution of ordering a Range Technology AFM Disabler Device which plugs into the diagnostics port under the dash. This prevents the vehicle from ever going into V4 mode again. So not only does the car drive like new again, but it is smoother and more responsive, just like a V8 should be!

Trabajando perfectamente

The dealer quoted over $1800 to replace this part. I did it myself in 6 hours plus the cost of the part.

Been in right at a year and fails, horrific. Rebuilt the top end of my engine, it seemed a little slow switching from 4cyl to 8 but nothing of note. Then fails yesterday. Wasted effort and money. Hoped going oem would be a better product. Dod delete is the only sure fire way to not have a problem.

to early to tell about quality,