---
id: 20261004_190000_stant-27153-gmc-k15-k1500-suburban-1967-1974
title: Stant 27153 Thermostat Gasket for GMC K15/K1500 Suburban (1967–1974)
category: Parts Catalog
corpus_topic: PartsCatalog
site_category: Parts Catalog
summary: Stant 27153 Stat Lok adhesive-backed thermostat gasket, fitting the GMC K15/K1500 Suburban (1967–1974). 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 GMC K15/K1500 Suburban (1967–1974). 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 GMC K15/K1500 Suburban, and who can I buy it from?
keypoints:
- GMC K15/K1500 Suburban (1967–1974)
- 'Engines listed: 6 Cyl 4.1L, 6 Cyl 4.8L, 6 Cyl 5.0L, 8 Cyl 4.6L, 8 Cyl 5.0L, 8 Cyl 5.3L, 8 Cyl 5.7L, 8 Cyl 6.5L, 8 Cyl 6.6L, 8 Cyl 7.4L'
tags:
- stant
- stant-27153
- thermostat-gasket
- stat-lok
- restoration-parts
- obsolete-auto-parts
- gmc
- gmc-k15-k1500-suburban
consent: true
agent: misty
created: '2026-10-05T02:53:15Z'
updated: '2026-10-05T02:53:15Z'
date: '2026-10-04'
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pipeline_filename: stant-27153-gmc-k15-k1500-suburban-1967-1974.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:
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asker_site: donsobsoleteautoparts.com
sample: false
sentiment: helpful
emotions:
- reassured
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sycophancy: 0
truth_score: 9
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predicted_narrative_arc: owner-searching-to-part-found
share_url: https://donsobsoleteautoparts.com/kb/PartsCatalog/stant-27153-gmc-k15-k1500-suburban-1967-1974.md
source_url: ''
part_number: Stant 27153
approved_by: Daniel Comp (chat, 2026-10-04 ~7:00 PM PT)
vehicle: GMC K15/K1500 Suburban
---

# Stant 27153 Thermostat Gasket for GMC K15/K1500 Suburban, 1967–1974

GMC trucks were the professional-grade cousins of Chevrolet trucks, built side by side and often sharing the same engines and cooling parts. On the GMC side, the catalogs list the Stant 27153 for 79 models from 1960 to 1992.

This page is for one model only: the GMC K15/K1500 Suburban. It isn't a wall of every car ever made, just yours.

## Model this gasket fits

- GMC K15/K1500 Suburban (1967–1974)
- Engines listed in the catalog: 6 Cyl 4.1L, 6 Cyl 4.8L, 6 Cyl 5.0L, 8 Cyl 4.6L, 8 Cyl 5.0L, 8 Cyl 5.3L, 8 Cyl 5.7L, 8 Cyl 6.5L, 8 Cyl 6.6L, 8 Cyl 7.4L

## 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

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 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.**