---
id: 20260929_200400_stant-27140-pontiac-tempest-lemans-chieftain-1949-1967
title: 'Stant 27140 Thermostat Gasket for Pontiac (1949–1967): Tempest, LeMans, Chieftain and more'
category: Parts Catalog
corpus_topic: PartsCatalog
summary: 'Stant 27140 Stat Lok adhesive-backed thermostat gasket, made in the USA, fitting 7 Pontiac models from 1949 to 1967, including the Tempest, LeMans and Chieftain. Offered by Don and Kathy Leask of Don''s Obsolete Auto Parts, restoration parts sellers online since 1997. No list price: buyers deal one on one with Don and Kathy.'
description: 'Stant 27140 Stat Lok adhesive-backed thermostat gasket, made in the USA, fitting 7 Pontiac models from 1949 to 1967, including the Tempest, LeMans and Chieftain. Offered by Don and Kathy Leask of Don''s Obsolete Auto Parts, restoration parts sellers online since 1997. No list price: buyers deal one on one with Don and Kathy.'
question: Will the Stant 27140 thermostat gasket fit my Pontiac, and who can I buy it from?
keypoints:
- Pontiac Bonneville (1957)
- Pontiac Chieftain (1949, 1955–1957)
- Pontiac Firebird (1967)
- Pontiac LeMans (1963–1967)
- Pontiac Star Chief (1955–1958)
- Pontiac Super Chief (1957)
- Pontiac Tempest (1961–1967)
tags:
- stant
- stant-27140
- thermostat-gasket
- stat-lok
- made-in-usa
- restoration-parts
- obsolete-auto-parts
- pontiac
- pontiac-bonneville
- pontiac-chieftain
- pontiac-firebird
- pontiac-lemans
- pontiac-star-chief
- pontiac-super-chief
- pontiac-tempest
consent: true
agent: misty
created: '2026-09-30T03:22:13Z'
updated: '2026-09-30T03:22:13Z'
date: '2026-09-29'
vault_stage: 07_CODEX
enrich_status: ok
enrich_method: bot
enrich_blockers: []
pipeline_filename: stant-27140-pontiac-tempest-lemans-chieftain-1949-1967.md
source_kind: authored
proposed_topic: PartsCatalog
lane: PartsCatalog
content_status: approved
routing_source: carbon
prefix: misty
headwaters: misty
asker_site: dkleask.com
sample: false
sentiment: helpful
emotions:
- reassured
- nostalgic
- confident
sycophancy: 0
truth_score: 9
entropy: 3
predicted_narrative_arc: owner-searching-to-part-found
part_number: Stant 27140
vehicle_make: Pontiac
---

# Stant 27140 Thermostat Gasket for Pontiac, 1949–1967

Don's very first car was a 1936 Pontiac convertible, bought by his father for about $600 when Don was in high school in Saskatchewan. So Pontiac has a special place in this shop. This gasket doesn't reach back to 1936, but the 27140 does fit the classic Pontiacs from the 1949 Chieftain through the Star Chief, Tempest, LeMans, and the first 1967 Firebird.

This page lists only the Pontiac models the Stant 27140 is catalogued to fit. It isn't a wall of every car ever made, just yours.

## Pontiac models this gasket fits

- Pontiac Bonneville (1957)
- Pontiac Chieftain (1949, 1955–1957)
- Pontiac Firebird (1967)
- Pontiac LeMans (1963–1967)
- Pontiac Star Chief (1955–1958)
- Pontiac Super Chief (1957)
- Pontiac Tempest (1961–1967)

## Help choosing the right gasket

The 27140 is a Stant Stat Lok thermostat gasket, made in the USA. "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. Its sister part, the 27167, fits a different set of mostly later, smaller engines, 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

Don and Kathy Leask have been selling obsolete and restoration auto parts online since 1997. Their eBay store, carparts2, was the second auto parts store on eBay. Over the years it grew into one of the biggest online sources of obsolete parts, with something like 11,000 to 17,000 unique parts listed.

These gaskets come from Don's own shelves, in original Stant bags marked Made in USA.

## No list price. Let's make a deal.

Don and Kathy don't do fixed prices on these. It works like a good swap meet: tell them what you need and how many, and they'll work out a fair deal with you one on one. 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 dkleask.com.**