Description:
1. These lifters are a performance replacement for stock hydraulic roller lifters
2. Large Base Design,Durable in High Performance Applications
3. Specifically designed to perform at higher engine speeds
4. Adjusts the valves on your vehicle's engine for proper performance
5. Use these lifters along with an LS3 Valley cover to eliminate DOD ( Displacement on Demand) used in newer model engines
6. According to original specifications, direct replacement part for the old one
Feature：
1. 100% brand new
2. 100% factory inspection and re-inspection before shipment
3. According to the original factory specifications
4. This product can be directly replaced
5. US Fast Free Shipping
6. One day shipment
Replaces OE Part Number：
12499225,17120735, 17122490, 17089852, 17108057, 17120070
17121905,HL124, 10530-16, 91113, HT-2148, 12595365, 5234890
5235498, 5233745, 5234670,JB2079, HL123,JB2270,HL112 ,HL118,HL119, L2148
Fitment for:
LS1, LS2, LS3, LS6, LS7, LS9 LSX Engines
1999-2002 Camaro and Firebird
2010-2013 Camaro
1999-2013 Corvette
2004-2006 Pontiac GTO
2004-2007 Cadillac CTS-V
2008-2009 Pontiac G8
2000-2013 Tahoe, Yukon, Escalade
2003-2009 H2 Hummer
1999-2013 Silverado and Sierra (4.8L, 5.3L, 6.0L)
Package Included:
16 x Hydraulic Roller Lifters
4 x Guide Trays
( as shown in the picture）
Perfect after-sales service:
1. We maintain high standards of excellenceand strive for 100% customer satisfaction!
Please don't open cases or return requests without contacting us.
If you have any questions about quality, shipping or other problems, please contact me first via eBay message.I will give you a satisfy solution.
2. If you are not sure if these are the right parts for your truck please email me your bill of material number and i will check it for you.
Important Note:
Quality and Design：Manufactured from high quality durable materials for long wear.Precision engineered for optimum fit and function.Designed for long-life and maintenance free performance.In order to protect the parts, it is normal to have oil on the parts
Precautions：When installing a new hydraulic roller lifters, the diesel engine should not be operated within 30 minutes (because the valve will hit the piston at this time)，and it is normal to produce a noise at the initial stage of starting the engine.
Lifters Maintain：
1. The oil is dry and the wear and tear, the newly purchased hydraulic roller lifters cannot be installed directly, it needs to be infiltrated and lubricated first
2.Use inferior motor oil or the oil deteriorates. If there are too many impurities in the oil, it will aggravate the wear of the hydraulic tappet.
How to replace the lifters with appropriate thickness?
1. When the camshaft is not disassembled, write the known gap measurement on white paper! The data is A
2. Remove the tappet! Measure the thickness! Write on white paper! The data is B
3. The first thing to know! Intake valve clearance is 0.20MM Exhaust pipe clearance is 0.30MM
4. Let A + B = C. C is the total distance from the camshaft to the valve top
5.The intake valve uses C-0.20 equal to the thickness of the intake valve tappet, the exhaust valve uses C-0.30 equals the thickness of the exhaust lifters
