Is this part covered by warranty?

Yes, this ACDelco Engine Piston includes a 24-month limited warranty covering defects in materials and workmanship. AutoBuffy also offers 30-day hassle-free returns if the part doesn't fit your vehicle.

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Passenger Side Engine Piston

Name: Passenger Side Engine Piston
Brand: ACDelco
SKU: 12654420
Availability: InStock
Rating: 4.9 (12847 reviews)

Authorized Dealer

Special Offer

Buy 3, Get 5% Off

3 for $0.00•Save $0.00

Passenger Side Engine Piston

BrandACDelcoLearn More

Qty/Vehicle3

ConditionNew

Includes: (1) Engine Piston, Hardware

$000

•In Stock•Fast Shipping

Estimated Delivery by calculating...

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Product Specifications

Features & Benefits

•Direct OE fit - no modifications needed
•Meets or exceeds manufacturer specs
•24-month warranty included
•Fast Shipping — ships same day before 3 PM ET

BrandACDelco

Part Number12654420

Part TypeEngine Piston

ConditionNew

Qty Per Vehicle3

Assembly Lubricant IncludedNo

Compatibility

Vehicle Compatibility

Guaranteed to fit 0 vehicles from Infinity--Infinity

No compatibility data available

Frequently Asked Questions

We're always here to help. If you can't find your answer, ask Rydon - our AI assistant will help you out.

What vehicles does this Engine Piston fit?

This ACDelco Engine Piston (Part #12654420) fits specific vehicles. Use the compatibility checker on this page to verify fitment for your vehicle.

Is this an OEM or aftermarket part?

This is a premium aftermarket Engine Piston by ACDelco, designed to meet or exceed OEM specifications with strict quality control standards.

What warranty is included?

This ACDelco Engine Piston is backed by a 24-month limited warranty covering defects in materials and workmanship from date of purchase.

How long does shipping take?

Fast shipping — orders before 3 PM ET ship the same day. Most arrive within 3-5 business days.

Can I return this if it does not fit?

30-day money-back guarantee. Return unused parts in original packaging for full refund.

Compatibility

Vehicle Compatibility

Guaranteed to fit 0 vehicles from Infinity--Infinity

No compatibility data available

Product Specifications

Brand

ACDelco

Part Type

Engine Piston

Diameter (In)

3.701 in

Grade Type

Regular

Part Number

12654420

Assembly Lubricant Included

Diameter (Mm)

94 mm

Length (In)

17 in

Assembly Lubricant IncludedNo

Diameter (In)3.701 in

Diameter (Mm)94 mm

Grade TypeRegular

Length (In)17 in

Piston Head TypeDome

Piston Inside Diameter3.516 IN

Piston MaterialAluminum

Piston Outside Diameter3.701 IN

Piston Pin Inside Diameter0.697 IN

Piston Pin Length2.081 IN

Piston Pin MaterialSteel

Piston Pin Outside Diameter0.945 IN

Ring Inside Diameter3.478 IN

Ring MaterialSteel

Ring Outside Diameter3.7 IN

Skirt Length0.188 IN

Skirt TypePartial

Features Benefits - Bullet 1Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

Features Benefits - Bullet 2GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.

Features Benefits - Bullet 3GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

Features Benefits - Bullet 4GM regularly updates production and service part designs to integrate new materials and technologies

Height (In)5.45 in

Meets Or Exceeds Original Equipment Manufacture SpecificationsYes

Oil Ring Thickness0.097 IN

Oil Spacer Ring Thickness0.087 IN

OversizedYes

Piston Pin Incorporated BearingsNo

Product DescriptionGM Genuine Parts Engine Pistons are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of

Programming RequiredNo

Second Compression Ring Thickness0.058 IN

Top Compression Ring Thickness0.046 IN

Weight (Lb)0.8 lb

Width (In)11.9 in

Check if this fitsShop worry-free by verifying fitment first. If the part doesn't fit, we'll make it right or refund you. Learn more

Main Image

Click to expand

Passenger Side Engine Piston

Authorized Dealer

Special Offer

Buy 3, Get 5% Off

3 for $0.00•Save $0.00

Call for Price

888-477-2530

Our parts specialists are ready to help you find the best price.

Part #:12654420

Call 888-477-2530 for Price

OE REPLACEMENT

Passenger Side Engine Piston

Part #:12654420

Engine Piston

Call for Price

888-477-2530

Our parts specialists are ready to help you find the best price.

Quantity:

In Stock10 or more available

Fast delivery between Mon, Jun 22 to Mon, Jun 22

Ships To:

Call 888-477-2530 for Price

Key Features

OEM-Equivalent QualityMeets/exceeds factory specs

American BusinessMaryland since 1986

24-Month WarrantyLimited coverage on every part

Fast Same Day ShippingWe ship all orders the same business day before cutoff

Product Specs

BrandACDelco

Part Number12654420

Part TypeEngine Piston

ConditionNew

Assembly Lubricant IncludedNo

Diameter (In)3.701 in

Diameter (Mm)94 mm

Grade TypeRegular

Compatibility

Vehicle Compatibility

Guaranteed to fit 0 vehicles from Infinity--Infinity

No compatibility data available

Questions & Answers

Have a Question?

Ask Marvin, our Car Expert

Offline

Or leave a voicemail at 888-477-2530

Things to Know

WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which are known to the State of California to cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts

Check if this fits your car first

Passenger Side Engine Piston

Passenger Side Engine Piston

Product Specifications

Compatibility

Vehicle Compatibility

Frequently Asked Questions

Compatibility

Vehicle Compatibility

Product Specifications

Passenger Side Engine Piston

Passenger Side Engine Piston

Key Features

Product Specs

Compatibility

Vehicle Compatibility

Questions & Answers

Things to Know

24 Month Warranty

30 Day Returns

Fast Same Day Shipping

About This Engine Piston

Key Features

Signs This Part Needs Replacement

ACDelco

Installation Guide

Tools Needed

Frequently Asked Questions