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12495490 4Pcs Replacement Rocker Arms Ball and Nut Kit for Buick Compitable with Cadillac for Chevrolet for GMC 1987-2002 4.3L 5.0L 5.7L Engines Replaces MRK-651 MR-926 10066063

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4 x Rocker Arms Ball and Nut Kit: Manufactured to OE specification, factory inspected, fully fit original car, reliable quality, durability
Reference Number: Rocker arm kit: MRK-651 12495490 10089648 ERK1868; Rocker arm: MR-926 10066063; Rocker Arm Ball: MRM-1731; Rocker Arm Nut: MRM-1786, absolutly brand new, refer to the "Amazon Confirm Fit" tool
Fits: rocker arms ball and nut kit for Buick Commerclal Chassis, rocker arms kit for Roadmaster, rocker arms kit for Cadillac Brougham, rocker arms kit for Commerclal Chassis, rocker arms kit for Escalade, rocker arms kit for Fleetwood, rocker arms kit for Chevrolet Astro, rocker arms kit for Blazer
Fits: rocker arms ball and nut kit for C1500, rocker arms kit for C1500Suburban, rocker arms kit for C2500, rocker arms kit for C2500Suburban, rocker arms kit for Camaro, rocker arms kit for Caprice, rocker arms kit for Commercial Chassis, rocker arms kit for Corvette, rocker arms kit for EI Camin, rocker arms kit for Express 1500, rocker arms kit for Express 2500, rocker arms kit for Chevrolet G10 G20 G30, rocker arms kit for Impala
Fits: rocker arms ball and nut kit for K1500 K1500 Suburban K2500 K2500 Suburban K3500, rocker arms kit for Monte Carlo, rocker arms kit for P20 P30, rocker arms kit for R10 R1500 Suburban R20 R2500 R2500 Suburban R3500, rocker arms kit for S10, rocker arms kit for S10 Blazer, rocker arms kit for Silverado 1500, rocker arms kit for Tahoe, rocker arms kit for V10 V1500 Suburban V2500 Suburban V3500, rocker arms kit for C1500 C1500 Suburban C2500 C3500, rocker arms kit for Caballero
Fits: rocker arms ball and nut kit for Chevrolet G1500 G2500 G3500, rocker arms kit for Jimmy, rocker arms kit for K1500 K1500 Suburban K2500 K3500, rocker arms kit for P2500 P3500, rocker arms kit for R1500 R2500 R3500, rocker arms kit for S15 S15 Jimmy, rocker arms kit for Safari, rocker arms kit for Savana 1500 Savana 2500 Savana 3500, rocker arms kit for Sierra 1500, rocker arms kit for Sonoma, rocker arms kit for Typhoon, rocker arms kit for V1500 V1500 Suburban V2500 Suburban V3500, rocker arms kit for Yukon, rocker arms kit for Hombre, rocker arms kit for Bravada, rocker arms kit for Custom Crulser, rocker arms kit for Firebird
Fits: rocker arms ball and nut kit for GMC C1500 C1500 Suburban C2500 C2500 Suburban C3500, rocker arms kit for Caballero, rocker arms kit for G1500 G2500 G3500 rocker arms kit for Jimmy, rocker arms kit for K1500 K1500 Suburban K2500 K2500 Suburban K3500, rocker arms kit for P2500 P3500, rocker arms kit for R1500 R1500 Suburban R2500 R2500 Suburban R3500, rocker arms kit for S15 S15 Jimmy, rocker arms kit for Safari, Savana 1500 Savana 2500, rocker arms kit for Sierra 1500, rocker arms kit for Sonoma, rocker arms kit for Syclone, rocker arms kit for Typhoon, rocker arms kit for V1500 V1500 Suburban V2500 Suburban V3500, rocker arms kit for Yukon

Fits: rocker arms ball and nut kit for Isuzu Hombre, rocker arms kit for Oldsmobile Bravada, rocker arms kit for Custom Crulser, rocker arms kit for Pontiac Firebird
Attention: Our products are based on your actual needs to buy sets. Because the number of rocker arms and lifters required for each engine is different, you need to purchase according to the model of your engine
Premium Support：Easy to reach customer service, we focus on product quality and customer service, our customer service is first-rate

Product Description

Since 1999 its inception EPCHUNMi has been focused on one thing... the customer experience.
EPCHUNMi is a professional supplier engaged in the development, customized,sale and sale-after of auto engine parts.We provide performance and replacement parts, along with every consumer item you’ll ever need.

Why Replace?

Lifter & rocker arms can help you resolve problems such as poor acceleration, decreased power or abnormal noise.
Please replace it as soon as possible to avoid further damaging your engine.

Common symptoms in bad rocker arms or hydraulic tappet include cracks or wear, strange noises or loose etc.

When you start the engine you will hear the Clicking or Ticking Noises.
Weak Engine Performance or Stalling.(poor acceleration , decreased power and affect the life of the engine.)
Engine Light On (DTC codes will be P2646, P2647 etc.)
Physical Deterioration (Severely worn etc).

Note: Please confirm whether the supply of lubricating oil is sufficient.

Any malfunction and damage to the rocker arm or hydraulic lifter will reduce the horsepower of the engine or even cause the engine to fail completely, preventing a smooth ride.
The best way to deal with it: disassemble the engine cylinder head and replace the hydraulic tappet or rocker arms.

Replaces MRK-651 12495490 10089648 ERK1868.Compatible with 4.3, 5.0, 5.7L engines.

Compatible with 4.3, 5.0, 5.7L engines.
Replaces :MRK-651 12495490 10089648 ERK1868,Rocker Arm Ball: MRM-1731; Rocker Arm Nut: MRM-1786 .
Compatible with: Buick Commercial Chassis 5.0L(1991) 5.7L(1992-1996), Roadmaster 5.0L(1991) 5.7L(1992-1996)
Compatible with: Cadillac Brougham 5.0L(1991-1992) 5.7L(1990-1992), Commercial Chassis 5.7L(1992-1996), Escalade 5.7L(1999-2000), Fleetwood 5.7L(1993-1996)
Compatible with: Chevrolet Astro 4.3L(1987-1999), Blazer 4.3L(1995-1999) 5.7L(1989-1994), C1500 4.3L(1988-1998) 5.0L(1989-1999) 5.7L(1989-1999), C1500 Suburban 5.7L(1992-1999), C2500 4.3L(1988-1995) 5.0L(1989-1999) 5.7L(1989-2000), C2500 Suburban 5.7L(1992-1999), C3500 5.7L(1989-2000), C3500HD 5.7L(2000), Camaro 5.0L(1989-1992) 5.7L(1989-1997), Caprice 4.3L(1987-1990)(1992-1993)(1994-1996) 5.0L(1989-1993) 5.7L(1989-1996), Commercial Chassis 4.3L(1992) 5.0L(1991-1992) 5.7L(1991-1994), Corvette 5.7L(1989-1996), El Camino 4.3L(1987) Express 1500 4.3L(1996-1999) 5.0L(1996-2000) 5.7L(1996-2002), Express 2500 4.3L(1996-1999) 5.0L(1996-2000) 5.7L(1996-2002), Express 3500 5.7L(1996-2002),G10 4.3L(1987-1995) 5.0L(1989-1995) 5.7L(1989-1993), G20 4.3L(1987-1995) 5.0L(1989-1995) 5.7L(1989-1995), G30 4.3L(1987-1995) 5.7L(1989-1996), Impala 5.7L(1994-1996), K1500 4.3L(1988-1998) 5.0L(1989-1999) 5.7L(1989-1999), K1500 Suburban 5.7L(1992-1999), K2500 4.3L(1988-1995) 5.0L(1989-1995)(1997-1998) 5.7L(1989-2000), K2500 Suburban 5.7L(1992-1999), K3500 5.7L(1989-2000), Monte Carlo 4.3L(1987-1988),P20 5.7L(1989), P30 4.3L(1990-1999) 5.7L(1989-1999), R10 4.3L(1987), R1500 Suburban 5.7L(1989-1991), R20 4.3L(1987-1988), R2500 5.7L(1989), R2500 Suburban 5.7L(1989-1991), R3500 5.7L(1989-1991), S10 4.3L(1988-1999), S10 Blazer 4.3L(1988-1994), Silverado 1500 4.3L(1999), Tahoe 5.7L(1995-2000), V10 4.3L(1987), V1500 Suburban 5.7L(1989-1991), V2500 Suburban 5.7L(1989-1991), V3500 5.7L(1989-1991)
Compatible with: GMC C1500 4.3L(1988-1998) 5.0L(1989-1999) 5.7L(1989-1999), C1500 Suburban 5.7L(1992-1999), C2500 4.3L(1988-1995) 5.0L(1989-1999) 5.7L(1989-2000), C2500 Suburban 5.7L(1992-1999), C3500 5.7L(1989-2000), Caballero 4.3L(1987), G1500 4.3L(1987-1995) 5.0L(1989-1995) 5.7L(1989-1993), G2500 4.3L(1987-1995) 5.0L(1989-1995) 5.7L(1989-1995), G3500 4.3L(1987-1995) 5.7L(1989-1996), Jimmy 4.3L(1992-1999) 5.7L(1989-1991), K1500 4.3L(1988-1998) 5.0L(1989-1999) 5.7L(1989-1999), K1500 Suburban 5.7L(1992-1999), K2500 4.3L(1988-1995) 5.0L(1989-1995)(1998) 5.7L(1989-2000), K2500 Suburban 5.7L(1992-1999), K3500 5.7L(1989-2000), P2500 5.7L(1989), P3500 4.3L(1990-1999) 5.7L(1989-1999), R1500 4.3L(1987), R1500 Suburban 5.7L(1989-1991), R2500 4.3L(1987) 5.7L(1989), R2500 Suburban 5.7L(1989-1991), R3500 5.7L(1989-1991), S15 4.3L(1988-1990), S15 Jimmy 4.3L(1988-1991), Safari 4.3L(1987-1999), Savana 1500 4.3L(1996-1999) 5.0L(1996-2000) 5.7L(1996-2002), Savana 2500 4.3L(1996-1999) 5.0L(1996-2000) 5.7L(1996-2002), Savana 3500 5.7L(1996-2002), Sierra 1500 4.3L(1999), Sonoma 4.3L(1991-1999), Syclone 4.3L(1991), Typhoon 4.3L(1992-1993), V1500 4.3L(1987), V1500 Suburban 5.7L(1989-1991), V2500 Suburban 5.7L(1989-1991), V3500 5.7L(1989-1991), Yukon 5.7L(1992-2000)
Compatible with: Oldsmobile Bravada 4.3L(1991-1994)(1996-1999), Custom Cruiser 5.0L(1991-1992) 5.7L(1992)
Compatible with: Pontiac Firebird 5.0L(1989-1992) 5.7L(1989-1997)& more vehicles.

Rocker Arms & Hydraulic Tappet are not well known for people but they are very important component of the internal combustion engine.

Optimized Performance

The Rocker Arm & Hydraulic Tappet that is intact and free from wear contributes to excellent horsepower and acceleration, preventing valve train noise and unnecessary valve train component wear.

Installation Notes:

Hydraulic tappets must be kept highly clean during installation , the engine oil should also meet the corresponding cleanliness;
The outer surface of the hydraulic tappet should not be damaged during installation;
Before installing the hydraulic tappet, it should be diffused into the oil.
If you have no installation experience, it is recommended to seek the help of professional maintenance personnel or watch the installation video.

What's the Hydraulic Tappet & How Does It Work?

A Hydraulic Tappet, also known as valve lifter or hydraulic lash adjuster, is a device for maintaining zero valve clearance in an internal combustion engine.Hydraulic Tappet keeps the valve healthy and protects from an engine's normal thermal expansion process.
The hydraulic lifter was designed to allow the valve train to operate with zero clearance—leading to quieter operation, longer affect the life of the engine, and eliminating the need for periodic adjustment of valve clearance.
Replace Your Bad Hydraulic Tappets On Time.

What's the Rocker arms & How Does It Work?

Rocker arms are reciprocating lever used in an internal combustion engine. They are typically located between the intake and exhaust valves and pushrods which are connected with crankshaft below the engine.
When the crankshaft rotates it cause up and down movement of the pushrods, then the pushrods pushed and pulled the rocker arm to rock up and down which cause opening and closing of the intake and exhaust valves. Then power can flow from the combustion chamber of engine through various parts to the wheels to put the vehicle in motion.
The broken and loose rocker arm cause poor performance of the engine, the engine will be enable to take the full load of the vehicle and in severe cases engine failed to start.

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