What’s the difference between this seal and the O’ring for the vacuum pump?

there is only a seal in the head and a gasket between head and pump that i know of there may be a o ring in a pump overhaul kit if you can find one

How does one remove the old gasket and install the new one?

it depends if head is on are off engine to remove i used a seal puller with ajustable handle try to just hook the seal with out puting a scratch in the head to install the seal use a wheel race installer that the flat side just will fit in the hole of the head put the seal as square in the hole as you can put race tool flat side to seal it would help to have extra hands use as long of a pry bar that will clear hood to push on installer to get seal flush you may have to use a block of wood near the firewall area it's not easey hope this helps i have only did this on 2 cadillac ats

Does it fit chevy malibu 2013 2.5

Yes it does I just got this part last month and it fit and works fine

Gm Genuine Parts 12668429 Vacuum Pump Seal

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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€ 18.21

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Seal the deal with genuine precision and performance!

GENUINE GM QUALITY - Tested to meet original equipment standards for unmatched durability.
TRUSTED BY THOUSANDS - Rated 4.7 stars by 438 users who demand reliability and performance.
LIGHTWEIGHT COMPACT - At just 0.317 ounces, it’s engineered for efficiency without bulk.
PRECISION ENGINEERED FIT - Exact dimensions ensure seamless installation without guesswork.
OPTIMIZED FOR YOUR VEHICLE - Specifically designed for Chevrolet, Buick, GMC, and Cadillac models.

The GM Genuine Parts 12668429 Vacuum Pump Seal is a vehicle-specific, precision-engineered O-ring designed to meet GM Original Equipment standards. Compact and lightweight, it ensures a perfect fit for Chevrolet, Buick, GMC, and Cadillac vehicles, backed by a 4.7-star rating from hundreds of satisfied customers.

Specifications

ASIN	B07TB5PZMS
Best Sellers Rank	#29,149 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Automatic Transmission Pump Seals Seals
Brand	GM GENUINE PARTS
Customer Reviews	4.7 4.7 out of 5 stars (438)
Date First Available	June 18, 2019
Exterior	Machined
Item Weight	0.317 ounces
Item model number	12668429
Manufacturer	ACDelco
Manufacturer Part Number	12668429
Model	Genuine GM Parts
OEM Part Number	12668429
Position	Center
Product Dimensions	2.6 x 2.6 x 0.4 inches

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€ 18.21

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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