LIFTERS 08 Tahoe 5.3

[George Owens]

Of course, the latest and greatest! 12645725s are in my truck (since 2016) and that number has been superceded to the other.

Nice, I’ve seem to have found 12648846 now just need to look for the afm lifters, might order them next week tho

 

[Geotrash]

Nice, I’ve seem to have found 12648846 now just need to look for the afm lifters, might order them next week tho

Autozone carries the Melling brand lifters if you have one close by.

 

[George Owens]

Of course, the latest and greatest! 12645725s are in my truck (since 2016) and that number has been superceded to the other.

Having a hard time finding that part, got a link?

 

[Geotrash]

Having a hard time finding that part, got a link?

The AFM lifters are hard to come by right now. Rock Auto sells them under the Ultra-Power brand, which may or may not be manufactured by Melling like the originals.

 

[swathdiver]

Having a hard time finding that part, got a link?

According to GMPartsDirect, 12645725 was replaced by 12680871 which was replaced by 12698946 which appears to be the current number.

Jegs says that they have 4 of them left in stock. https://www.jegs.com/i/Chevrolet-Performance/809/12698946/10002/-1

GM dealers and reputable companies listed here have them:

Genuine gm Valve Lifters 12698946 | eBay

Find many great new & used options and get the best deals for Genuine gm Valve Lifters 12698946 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Genuine GM Valve Lifters 12698946 | eBay

Find many great new & used options and get the best deals for Genuine GM Valve Lifters 12698946 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Genuine GM Lifter 12698946 | eBay

Find many great new & used options and get the best deals for Genuine GM Lifter 12698946 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Not familiar with these companies:

GM AFM Lifter 8 Pack Part# 12698946 12645725 12680871 4.3L V6 5.3L 6.0L 6.2L | eBay

Replaces 12645725, 12680871. Part# 12698946.

www.ebay.com

12698946 - General Motors Engine Camshaft Follower. VALVE LIFTERS | GM Car Parts Online, Cincinnati OH

Genuine General Motors Part # 12698946 (12680871) - Engine Camshaft Follower. VALVE LIFTERS. Cylinder Deactivation. Engine Camshaft Follower. Ships from GM Car Parts Online, Cincinnati OH

www.gmcarpartsonline.com

All of the Amazon ones are Chicom garbage and the reviewers all lost their engines soon after installation.

 

[George Owens]

According to GMPartsDirect, 12645725 was replaced by 12680871 which was replaced by 12698946 which appears to be the current number.

Jegs says that they have 4 of them left in stock. https://www.jegs.com/i/Chevrolet-Performance/809/12698946/10002/-1

GM dealers and reputable companies listed here have them:

Genuine gm Valve Lifters 12698946 | eBay

Find many great new & used options and get the best deals for Genuine gm Valve Lifters 12698946 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Genuine GM Valve Lifters 12698946 | eBay

Find many great new & used options and get the best deals for Genuine GM Valve Lifters 12698946 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Genuine GM Lifter 12698946 | eBay

Find many great new & used options and get the best deals for Genuine GM Lifter 12698946 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Not familiar with these companies:

GM AFM Lifter 8 Pack Part# 12698946 12645725 12680871 4.3L V6 5.3L 6.0L 6.2L | eBay

Replaces 12645725, 12680871. Part# 12698946.

www.ebay.com

12698946 - General Motors Engine Camshaft Follower. VALVE LIFTERS | GM Car Parts Online, Cincinnati OH

Genuine General Motors Part # 12698946 (12680871) - Engine Camshaft Follower. VALVE LIFTERS. Cylinder Deactivation. Engine Camshaft Follower. Ships from GM Car Parts Online, Cincinnati OH

www.gmcarpartsonline.com

All of the Amazon ones are Chicom garbage and the reviewers all lost their engines soon after installation.

Yea that’s exactly why I’m going for delco brands or ones that could be trustworthy

 

[tom3]

Off topic question but when you do this will you remove the (intake) valves and clean the back sides? Like to see a picture of those if so. Really wonder about the DI engine valves build up.

 

[Dustin Jackson]

Off topic question but when you do this will you remove the (intake) valves and clean the back sides? Like to see a picture of those if so. Really wonder about the DI engine valves build up.

@tom3 These engines aren't direct injection, normally there isn't a reason to clean the intake valves. This is for 08-2014 Tahoes looks like you might be thinking of newer ones

 

[Jrschultz]

Hello my GM 5.3 people. I have a lifter that went and need a little advice on what all to change seeing I'll have it apart. Has 267k on it. And, what lifters are recommended? AC Delco? Any particular aftermarket?

 

[Geotrash]

Hello my GM 5.3 people. I have a lifter that went and need a little advice on what all to change seeing I'll have it apart. Has 267k on it. And, what lifters are recommended? AC Delco? Any particular aftermarket?

Lots of options. Aftermarket or stock cam? Deleting AFM? If you are deleting it, I'm a fan of the Morel 7717 lifters. Chevrolet Performance drop-in lifters are also good - they're what I'm running on my cammed 2012. Word on the street is the OEM lifters are made by Melling, so if you're keeping AFM, either OEM or Melling lifters are the way to go.

Might as well send out the heads for machining and have new valve stem seals and springs installed.

Here is my cam swap parts list in case it's helpful: https://www.tahoeyukonforum.com/thr...nali-6-2l-cam-swap-thread.121671/post-1616690