How to remove and inspect pistons in an engine?

Before removing the pistons, inspect the cylinder bore for a ridge felt by hand. Use a ridge reamer for that purpose. To start piston removal, you need to match each connecting rod cap with its respective rod number. Place a rubber hose over the connecting rod studs on the crankshaft and cylinders so they don't get scratched or damaged. Then, lubricate the cylinder wall with clean engine oil and tap the piston gently out using a wooden dowel. Repeat for all pistons in the same way. After taking them off, clean cylinder bore and pistons thoroughly using soap and water before applying clean engine oil to prevent corrosion. The piston rings are removed using ring expander tool then piston grooves are cleaned. Cylinder bore diameter and piston clearance are measured by telescopic gauge in combination with micrometer. Piston should be marked for reference. Pistons having pressed-in wrist pins must be removed using special tools while snap-ringed pins can be taken out through use of screwdriver. Replace / install wrist pins as required. When you fit in new rings, make sure they do not get damaged by utilizing piston ring expander. According to manufacturer's instructions, place the rings correctly on the pistons just as directed by their manufacturers' manual guides . In case of any damage or wear-out, inspect and replace connecting rod bearings when necessary. Use Plastigage® to check bearing clearance. Choose appropriate undersized bearing shell where necessary if there's an excessive clearance . Observe proper side clearance between rods and crankshaft in installing bearings, pistons, and connecting rods as per manufacturer specifications . Finally, reassemble engine components including oil pump(s), oil pan(s), cylinder head(s) and intake manifold(s).

Genuine Buick Regal Piston

Engine Pistons

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28 Pistons found

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Buick Regal Piston Kit
Part Number: 12646457
$62.50 MSRP: $108.77
You Save: $46.27 (43%)
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Product Specifications
- Other Name: PISTON KIT, Engine Piston; Piston, Pistons
- Replaces: 89018112, 12608531, 12631102, 19180835
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2017 Buick Regal | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN | 4 Cyl 2.4L
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Buick Regal Piston Kit
Part Number: 12674055
$36.61 MSRP: $57.59
You Save: $20.98 (37%)
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Product Specifications
- Other Name: PISTON KIT, Engine Piston; Piston
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2020 Buick Regal | 1SX 4 DOOR HATCHBACK | 6 Cyl 3.6L
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Buick Regal Piston Kit
Part Number: 12674056
$51.84 MSRP: $81.56
You Save: $29.72 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: PISTON KIT, Engine Piston; Piston
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2020 Buick Regal | 1SX 4 DOOR HATCHBACK | 6 Cyl 3.6L
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Buick Regal Piston Asm,(W/ Pinion)
Part Number: 24508726
$40.86 MSRP: $82.38
You Save: $41.52 (51%)
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Product Specifications
- Other Name: PISTON, Engine Piston; Piston
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1999 Buick Regal | 2 DOOR, 4 DOOR, CUSTOM, CUSTOM 2 DOOR, CUSTOM 4 DOOR, GRAN SPORT 4 DOOR, GS, LIMITED, LIMITED 4 DOOR, LS, REGAL | 6 Cyl 3.1L
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Buick Regal Pstn & Piston Pinion Asm
Part Number: 14102688
$54.38 MSRP: $109.66
You Save: $55.28 (51%)
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Product Specifications
- Other Name: PISTON, Engine Piston; Piston, Pistons
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1989 Buick Regal | CUSTOM 2 DOOR, LIMITED, REGAL | 6 Cyl 2.8L
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Buick Regal Piston Asm,(W/ Pinion)
Part Number: 24505806
$60.44 MSRP: $121.88
You Save: $61.44 (51%)
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Product Specifications
- Other Name: PISTON, Engine Piston; Piston
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 Buick Regal | 2 DOOR, 4 DOOR, CUSTOM 2 DOOR, CUSTOM 4 DOOR, GRAN SPORT 2 DOOR, GRAN SPORT 4 DOOR, LIMITED 4 DOOR | 6 Cyl 3.1L
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Buick Regal Piston Assembly, (W/Pinion, Std)
Part Number: 12537198
$61.93 MSRP: $124.87
You Save: $62.94 (51%)
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Product Specifications
- Other Name: PISTON, Engine Piston; Piston, Pistons
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-1992 Buick Regal | 2 DOOR, 4 DOOR, CUSTOM 2 DOOR, CUSTOM 4 DOOR, GRAN SPORT 2 DOOR, GRAN SPORT 4 DOOR, LIMITED, LIMITED 2 DOOR, LIMITED 4 DOOR | 6 Cyl 3.8L
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Buick Regal Piston Assembly, (W/ Connect Rod)
Part Number: 12564008
$26.57 MSRP: $43.98
You Save: $17.41 (40%)
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Product Specifications
- Other Name: PISTON, Engine Piston; Piston
- Replaces: 12564009, 24508305
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004 Buick Regal | CUSTOM, GS, LS
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Buick Regal Piston Asm,(W/ Pinion)
Part Number: 89018108
$86.00 MSRP: $135.35
You Save: $49.35 (37%)
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Product Specifications
- Other Name: PISTON, Engine Piston; Piston, Pistons
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2013 Buick Regal | CXL TURBO 4 DOOR SEDAN, CXS 4 DOOR SEDAN | 4 Cyl 2.0L
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Buick Regal Piston,(W/Pinion)
Part Number: 12539085
$104.07 MSRP: $163.76
You Save: $59.69 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: PISTON, Engine Piston; Piston, Pistons
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-2004 Buick Regal | CUSTOM, GS, LIMITED, LS, REGAL | 6 Cyl 3.8L
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Buick Regal Piston
Part Number: 12657184
$3068.82 MSRP: $3967.44
You Save: $898.62 (23%)
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Product Specifications
- Other Name: PISTON, Engine Piston
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2013-2015 Buick Regal | CXL 4 DOOR SEDAN | 4 Cyl 2.4L
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Buick Regal Piston Asm,(W/ Pinion)(0.020" Oversize)
Part Number: 12539086
$211.30 MSRP: $279.78
You Save: $68.48 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: PISTON, Engine Piston
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-2004 Buick Regal | CUSTOM, GS, LIMITED, LS, REGAL | 6 Cyl 3.8L
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Buick Regal Piston Kit
Part Number: 12652809
$17.06 MSRP: $26.85
You Save: $9.79 (37%)
Product Specifications
- Other Name: PISTON KIT, Engine Piston; Piston
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2020 Buick Regal | 1SC 4 DOOR HATCHBACK, 1SL 4 DOOR HATCHBACK, 1SL 4 DOOR STATION WAGON, BASE 4 DOOR HATCHBACK, BASE 4 DOOR STATION WAGON, CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXS 4 DOOR SEDAN | 4 Cyl 2.0L
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Buick Regal Piston Asm,(W/ Pinion) (0.5Mm Oversize)
Part Number: 12481320
Product Specifications
- Other Name: PISTON, Engine Piston
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2003 Buick Regal | CUSTOM, GL, GLX, GS, LIMITED, LS
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Buick Regal Piston Assembly,(W/ Pinion, Std Size)
Part Number: 19299371
Product Specifications
- Other Name: PISTON, Engine Piston; Piston, Pistons
- Replaces: 89017810, 12537408
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2004 Buick Regal | 2 DOOR, 4 DOOR, CUSTOM, CUSTOM 2 DOOR, CUSTOM 4 DOOR, GL, GLX, GRAN SPORT 4 DOOR, GS, LIMITED, LIMITED 4 DOOR, LS, REGAL | 6 Cyl 3.8L
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Buick Regal Piston,W/Pinion(Std High, Limit)
Part Number: 25527178
Product Specifications
- Other Name: PISTON, Engine Piston; Piston
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1987 Buick Regal | 2 DOOR, 4 DOOR, REGAL, STATION WAGON | 6 Cyl 3.8L, 6 Cyl 4.1L
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Buick Regal Piston & Pinion (Std) LH(3.7993 To 3.8003In)
Part Number: 22527479
Product Specifications
- Other Name: PISTON, Engine Piston; Piston
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1987 Buick Regal | 2 DOOR, 4 DOOR, REGAL, STATION WAGON | 8 Cyl 5.0L
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Buick Regal Piston Assembly, W/ Pinion (0.5M Oversize)
Part Number: 24504503
Product Specifications
- Other Name: PISTON, Engine Piston
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1998 Buick Regal | 2 DOOR, 4 DOOR, CUSTOM, CUSTOM 2 DOOR, CUSTOM 4 DOOR, GRAN SPORT 4 DOOR, GS, LIMITED, LIMITED 4 DOOR, LS, REGAL | 6 Cyl 3.1L
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Buick Regal Piston Assembly, W/Pinion(0.5 Mm Oversize)
Part Number: 10208893
Product Specifications
- Other Name: PISTON, Engine Piston
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 Buick Regal | 2 DOOR, 4 DOOR, CUSTOM 2 DOOR, CUSTOM 4 DOOR, GRAN SPORT 2 DOOR, GRAN SPORT 4 DOOR, LIMITED 4 DOOR | 6 Cyl 3.1L
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Buick Regal Piston Assembly, W/Pinion(1.0 Mm Oversize)
Part Number: 10208894
Product Specifications
- Other Name: PISTON, Engine Piston
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 Buick Regal | 2 DOOR, 4 DOOR, CUSTOM 2 DOOR, CUSTOM 4 DOOR, GRAN SPORT 2 DOOR, GRAN SPORT 4 DOOR, LIMITED 4 DOOR | 6 Cyl 3.1L

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1-20 of 28 Results

The Piston in Buick Regal automobile is an interior combustion chamber engine part that turns power from combustion into the energy that moves vehicles. This is done through the conversion of force exerted by gases, which are expanding, to the crank shaft, Cui et al, (2014). Generally, Buick Regal pistons are made from aluminium alloys because they are light and strong; some racing car Buick Regal pistons may use forged or billet manufacturing process. Various types of piston has been used in Buick Regal vehicles, these include trunk pistons for petrol and diesel engines which encase side forces and have rings for oiling. Also, it is applied as slipper pistons in the high-speed petrol engines to provide engine balance, and increased performance. Different designs of Buick Regal pistons are performed to fit into the needs of specific performance to enhance durability of the pistons and functionality of the engines.

Buick Regal Piston Parts Questions & Experts Answers

Piston & Pinion (Std) LH(3.7993 To 3.8003In)
22527479
Q: How to remove and inspect pistons in an engine?
A: Before removing the pistons, inspect the cylinder bore for a ridge felt by hand. Use a ridge reamer for that purpose. To start piston removal, you need to match each connecting rod cap with its respective rod number. Place a rubber hose over the connecting rod studs on the Crankshaft and cylinders so they don't get scratched or damaged. Then, lubricate the cylinder wall with clean engine oil and tap the piston gently out using a wooden dowel. Repeat for all pistons in the same way. After taking them off, clean cylinder bore and pistons thoroughly using soap and water before applying clean engine oil to prevent corrosion. The piston rings are removed using ring expander tool then piston grooves are cleaned. Cylinder bore diameter and piston clearance are measured by telescopic gauge in combination with micrometer. Piston should be marked for reference. Pistons having pressed-in wrist pins must be removed using special tools while snap-ringed pins can be taken out through use of screwdriver. Replace / install wrist pins as required. When you fit in new rings, make sure they do not get damaged by utilizing piston ring expander. According to manufacturer's instructions, place the rings correctly on the pistons just as directed by their manufacturers' manual guides . In case of any damage or wear-out, inspect and replace connecting rod bearings when necessary. Use Plastigage® to check bearing clearance. Choose appropriate undersized bearing shell where necessary if there's an excessive clearance . Observe proper side clearance between rods and crankshaft in installing bearings, pistons, and connecting rods as per manufacturer specifications . Finally, reassemble engine components including oil pump(s), Oil Pan(s), Cylinder Head(s) and Intake Manifold(s).