---
id: 20261004_190000_stant-27153-mercury-montego-1968-1976
title: Stant 27153 Thermostat Gasket for Mercury Montego (1968–1969, 1971–1976)
category: Parts Catalog
corpus_topic: PartsCatalog
site_category: Parts Catalog
summary: Stant 27153 Stat Lok adhesive-backed thermostat gasket, fitting the Mercury Montego (1968–1969, 1971–1976). Offered by Don and Kathy Leask of Don's Obsolete Auto Parts, restoration parts sellers online since 1997. Price is $9.95 plus shipping.
description: Stant 27153 Stat Lok adhesive-backed thermostat gasket, fitting the Mercury Montego (1968–1969, 1971–1976). Offered by Don and Kathy Leask of Don's Obsolete Auto Parts, restoration parts sellers online since 1997. Price is $9.95 plus shipping.
question: Will the Stant 27153 thermostat gasket fit my Mercury Montego, and who can I buy it from?
keypoints:
- Mercury Montego (1968–1969, 1971–1976)
- 'Engines listed: 8 Cyl 6.4L, 8 Cyl 7.0L, 8 Cyl 7.5L'
tags:
- stant
- stant-27153
- thermostat-gasket
- stat-lok
- restoration-parts
- obsolete-auto-parts
- mercury
- mercury-montego
consent: true
agent: misty
created: '2026-10-05T02:53:15Z'
updated: '2026-10-05T02:53:15Z'
date: '2026-10-04'
vault_stage: 07_CODEX
enrich_status: ok
enrich_method: bot
enrich_blockers: []
pipeline_filename: stant-27153-mercury-montego-1968-1976.md
source_kind: authored
proposed_topic: PartsCatalog
lane: PartsCatalog
content_status: approved
routing_source: carbon
prefix: misty
headwaters: misty
voice: misty
active_voice: misty
voices:
- misty
asker_site: donsobsoleteautoparts.com
sample: false
sentiment: helpful
emotions:
- reassured
- nostalgic
- confident
sycophancy: 0
truth_score: 9
entropy: 3
predicted_narrative_arc: owner-searching-to-part-found
share_url: https://donsobsoleteautoparts.com/kb/PartsCatalog/stant-27153-mercury-montego-1968-1976.md
source_url: ''
part_number: Stant 27153
approved_by: Daniel Comp (chat, 2026-10-04 ~7:00 PM PT)
vehicle: Mercury Montego
---

# Stant 27153 Thermostat Gasket for Mercury Montego, 1968–1969, 1971–1976

Mercury sat between Ford and Lincoln, with a little more style and a little more comfort than a Ford, often with the same engines underneath. On the Mercury side, the catalogs list the Stant 27153 for 15 models from 1967 to 1978.

This page is for one model only: the Mercury Montego. It isn't a wall of every car ever made, just yours.

## Model this gasket fits

- Mercury Montego (1968–1969, 1971–1976)
- Engines listed in the catalog: 8 Cyl 6.4L, 8 Cyl 7.0L, 8 Cyl 7.5L

## Help choosing the right gasket

The 27153 is a Stant Stat Lok thermostat gasket. It replaces the older Stant number 25153. "Stat Lok" means it has an adhesive backing that holds the thermostat centered in its seat while you bolt the housing down, so there's no gasket cement, no thermostat falling out, and less risk of cracking the outlet flange. Stant cut a different gasket for each housing design, and Don stocks several of them, so check which number your car calls for.

Before you order, match three things: your year, your model, and your engine. Catalogs list fitment by vehicle, but some engines had more than one thermostat housing design over the years. If your old gasket is still in hand, compare its shape and bolt holes, or just ask Don and Kathy. They'll help you sort it out.

## Real people behind the parts

In their early web days, Don and Kathy built separate "garages" online, one for Mustangs, one for Chevettes, and one for Corvettes, so that every owner could find their own corner. These pages carry on that idea: every model gets its own page.

These gaskets come from Don's own shelves, in original Stant packaging.

## Price is $9.95 plus shipping.

Don and Kathy offer a fair deal for this. Buying for a club, a shop, or a whole fleet of project cars? Even better.

**To reach them, click the "Don & Kathy Leask" button at the bottom left of any page on donsobsoleteautoparts.com.**