How to replace the Lash Adjuster on Buick Regal?

Start the Lash Adjuster replacement by removing valve Rocker Arm covers followed by the upper and lower intake manifolds. The next step requires removing Rocker Arm bolts followed by valve rocker arms and push rod guide plates where all parts must stay organized for future reinstallation. Pull out the pushrod(s) and also remove the Lash Adjuster guide bolts and guide(s) and Lash Adjuster(s) from their locations. Clear all valve train components using degreaser before checking both the lash adjusters and cam lobe surfaces for damage. Dip all lash adjusters in prelube solution gm p/n 12345501 or equivalent then position them back to their original locations during installation. After Lash Adjuster guide installation insert the guide bolts and tighten them to 30 nm (22 ft. Lbs.). Follow installation by adding pushrods followed by push rod guides and valve rocker arms and closing with bolts. Put the lower Intake Manifold and upper Intake Manifold along with valve Rocker Arm covers back into place.

OEM Buick Regal Lash Adjuster

Lash Adjuster Lifter

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Buick Regal Valve Lifters
Part Number: 17121905
$29.65 MSRP: $51.94
You Save: $22.29 (43%)
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Product Specifications
- Other Name: Lifter, Engine Valve Lifter; Valve Lifter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1997 Buick Regal | Custom, Gran Sport, GS, Limited, LS, Olympic Gold Edition | 6 Cyl 3.8 L GAS
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Buick Regal Valve Lifters
Part Number: 17122490
$38.65 MSRP: $60.54
You Save: $21.89 (37%)
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Product Specifications
- Other Name: Lifter, Engine Valve Lifter; Valve Lifter
- Replaces: 05234670, 5234670
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-2004, 1990-1995 Buick Regal | 25th Anniversary Edition, Custom, Gran Sport, GS, GSE, Limited, LS, LSE | 6 Cyl 3.8 L GAS
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Buick Regal Valve Lifters
Part Number: 5234530
$48.19 MSRP: $75.50
You Save: $27.31 (37%)
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Product Specifications
- Other Name: Valve Lift; Valve Lifter; Lifter, Engine Valve Lifter; Lifter, Engine Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1985 Buick Regal | Base, Limited | 6 Cyl 4.3 L DIESEL, 8 Cyl 5.7 L DIESEL
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Buick Regal Valve Lifters
Part Number: 17120070
$21.96 MSRP: $34.39
You Save: $12.43 (37%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Lifter, Engine Valve Lifter; Valve Lifter
- Replaces: 17102014
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1996 Buick Regal | Custom | 6 Cyl 3.1 L GAS
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Buick Regal Valve Lifters, Green Line
Part Number: 12686787
$14.78 MSRP: $23.17
You Save: $8.39 (37%)
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Product Specifications
- Other Name: Adjuster Assembly-Hydraulic Valve Lash; Filler Cap O-Ring; Adjuster, Engine Valve Lifter; Adjuster, Engine Valve
- Replaces: 12572638, 24100005
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2017 Buick Regal | Base, CXL, GS, Premium, Sport Touring | 4 Cyl 2.0 L FLEX, 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick Regal Push Rods
Part Number: 5232720
$15.30 MSRP: $23.93
You Save: $8.63 (37%)
Product Specifications
- Other Name: Valve Lift; Valve Lifter; Pushrod; Valve Lifters; Lifter, Engine Valve Lifter; Lifter, Engine Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1987 Buick Regal | Base, Grand National, Limited, T-Type | 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L DIESEL, 8 Cyl 5.0 L GAS
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Buick Regal Valve Lifters
Part Number: 5234485
Product Specifications
- Other Name: Lifter, Valve; Valve Lifter; Lifter, Engine Valve Lifter
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1987 Buick Regal | Base, GNX, Grand National, Limited, T-Type | 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS
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Buick Regal Valve Lifters
Part Number: 5234212
Product Specifications
- Other Name: Lifter, Valve; Valve Lifter; Lifter, Engine Valve Lifter; Lifter, Engine Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993, 1988-1990 Buick Regal | Custom, Gran Sport, Limited | 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS

Buick Regal Lash Adjuster

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Buick Regal Lash Adjuster Parts Questions & Experts Answers

Valve Lifters
17122490
Q: How to replace the Lash Adjuster on Buick Regal?
A: Start the Lash Adjuster replacement by removing valve Rocker Arm covers followed by the upper and lower Intake Manifolds. The next step requires removing Rocker Arm bolts followed by valve rocker arms and push rod guide plates where all parts must stay organized for future reinstallation. Pull out the pushrod(s) and also remove the Lash Adjuster guide bolts and guide(s) and Lash Adjuster(s) from their locations. Clear all valve train components using degreaser before checking both the lash adjusters and cam lobe surfaces for damage. Dip all lash adjusters in prelube solution gm p/n 12345501 or equivalent then position them back to their original locations during installation. After Lash Adjuster guide installation insert the guide bolts and tighten them to 30 nm (22 ft. Lbs.). Follow installation by adding pushrods followed by push rod guides and valve rocker arms and closing with bolts. Put the lower Intake Manifold and upper Intake Manifold along with valve Rocker Arm covers back into place.