Michigan Motorsports Delphi LS7 Lifter Set with Guide Trays | Fits GM LS Engines 4.8L 5.3L 5.7L 6.0L 6.2L LS1 LS2 LS3 LS6 LQ4 LQ9 LY5 LY6 LM7 | Delphi Part #'s 12499225 & 25341990
Condition: New
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30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Tuesday, Jun 2
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Features
- Michigan Motorsports buys Delphi LS7 Lifters in very large quantities in order to offer the best price available. See pictures for details. Lifters are packaged in sets of 16 and include new OEM Quality Guide Trays.
- OEM-Quality Delphi LS7 Lifters Includes 16 Delphi LS7 hydraulic roller lifters and 4 lifter guide trays, offering a direct replacement for worn or damaged lifters in GM LS-based engines.
- Direct Replacement for GM Part Numbers: Replaces GM 12499225 and 25341990, ensuring precise fitment and compatibility with factory lifter guides for reliable performance.
- Compatible with Multiple LS Engines: Designed for use in LS1, LS2, LS3, LS6, LQ4, LQ9, LY5, LY6, LM7, and other LS-based 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L engines, making them ideal for rebuilds, LS swaps, and valvetrain upgrades.
- Perfect for Camshaft Upgrades: Optimized for hydraulic roller camshaft applications, these lifters provide enhanced power and torque for naturally aspirated, turbocharged, or supercharged LS engines.
Manufacturer: Michigan Motorsports
Brand: Michigan Motorsports
Model: Delphi LS7 Lifters
Item Weight: 0.01 ounces
Package Dimensions: 12.32 x 8.58 x 5.75 inches
Item model number: 97400-16+97500-4
Is Discontinued By Manufacturer: No
Manufacturer Part Number: 97400-16+97500-4
Position: Top
Date First Available: March 1, 2018
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jun 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
They worked out great so far 2006 Silverado 4.8 Be aware they make a lot of chatter at first start up at least for me. Noise lasted about a few seconds. 2nd time it made a even louder knock/ lifter noise. I shut off my engine started it again and went silent better then ever. So far so good. I would recommend and purchase another set.
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Reviewed in the United States on January 25, 2024 by Daniel Z
Son de buena calidad
Reviewed in the United States on November 7, 2025 by ivan Alejandro
The product looks to be a good GM replacement lifter. I see there is some questionable reviews on this product. The trays have the GM part number. And the product was shipped in the company package. The lifters were shipped in oil, and they look to be correct for the LS7 application.
Reviewed in the United States on December 11, 2021 by Zachary Johnson Zachary Johnson
Got these for a dod delete. Runs like a sowing machine you barely even feel it’s on
Reviewed in the United States on February 27, 2025 by Cesar-amg
Fit like a glove
Reviewed in the United States on November 18, 2024 by tony duenas
All there parts are the best quality I’m running a lot of parts in my engine and yes I’ve put them to the test I’m Running texas speed camshaft, heavy springs and supercharged with great oil pressure and there still rockin so don’t hesitate to buy anything from Michigan motor sports
Reviewed in the United States on July 29, 2020 by thomas johnson thomas johnson
My 2006 GMC Sierra 2500 HD 6.0 has 280,000 miles on it. At startup it was a clacker!!!! It then started happening on the freeway all the time. Finally decided to fix the problem. My engine purrs like a kitten now. My sure to get new engine head bolts and new exhaust bolts. Soaked the lifters while I was opening up the engine. Michigan Motorsports was fantastic!!! They answered my email quickly and were very helpful.
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Reviewed in the United States on July 11, 2022 by Brandon Brandon
Lasted less than 80 miles before suddenly heard loud clanking on the passenger side of the engine. Pulled valve cover and found a rocker arm sitting sideways and no pushrod. Fished the pieces of the broken pushrod out with a magnet and checked with a borescope. Found cracked lifter tray from this kit (Fasteners for lifter trays also torqued correctly). Pushrods were correct length and valve lash set properly. Had good oil pressure until this suddenly happened..
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Reviewed in the United States on October 2, 2025 by Scott Rollis Scott Rollis