---
product_id: 4322710
title: "GM Genuine Parts GT261 (19207873) Fuel Tank Filler Cap"
brand: "gm genuine parts"
price: "$29.94"
currency: USD
in_stock: true
reviews_count: 13
category: "Gm Genuine Parts"
url: https://www.desertcart.us/products/4322710-gm-genuine-parts-gt261-19207873-fuel-tank-filler-cap
store_origin: US
region: United States of America
---

# Precision fit for GM vehicles Tight liquid & vapor seal OE-tested durability GM Genuine Parts GT261 (19207873) Fuel Tank Filler Cap

**Brand:** gm genuine parts
**Price:** $29.94
**Availability:** ✅ In Stock

## Summary

> ⛽ Seal the deal with GM precision and never miss a smooth ride!

## Quick Answers

- **What is this?** GM Genuine Parts GT261 (19207873) Fuel Tank Filler Cap by gm genuine parts
- **How much does it cost?** $29.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/4322710-gm-genuine-parts-gt261-19207873-fuel-tank-filler-cap)

## Best For

- gm genuine parts enthusiasts

## Why This Product

- Trusted gm genuine parts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Emission Ready:** Helps your vehicle pass strict EVAP system tests with ease.
- • **Perfect GM Fit:** Engineered to GM OE specs for flawless compatibility and performance.
- • **Leak-Proof Seal:** Rubber gasket ensures no fuel fumes escape and keeps contaminants out.
- • **Easy Installation:** Simple 3-click tightening mechanism for hassle-free replacement.
- • **Durability You Can Trust:** Manufactured and tested to meet GM’s high standards for long-lasting reliability.

## Overview

The GM Genuine Parts GT261 Fuel Tank Filler Cap is a GM-recommended, OE-spec replacement designed to provide a secure, leak-proof seal for your vehicle’s fuel tank. Crafted with a durable rubber gasket and precision engineering, it prevents fuel vapor leaks and contamination, ensuring compliance with emissions standards and maintaining optimal vehicle performance.

## Description

The ACDelco GM Original Equipment Regular Fuel Cap is a threaded cap that seals your vehicle's fuel tank filler, and is a GM-recommended replacement for your vehicle’s original component. The fuel cap has a rubber gasket that provides a liquid-tight seal to keep fuel in and water and dirt out. The cap may have a check-valve that lets air in or out depending on the air pressure inside the tank. This original equipment regular fuel cap has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Review: It's a quality cap that seals well. - This cap replaced a Motorad locking cap that I bought a few months ago. The Motorad cap was too tight in the filler neck opening, requiring IMO too much effort to remove or replace it. My vehicle is a recent purchase that I'm working through readying for it's Calif emissions test. The self-tests (I/M readiness monitors) that vehicles do after their battery is disconnected and reconnected, was failing at the last step, EVAP (with the other cap). I bought this cap because it was designed by GM for their vehicles. The cap fits the filler opening better and the EVAP monitor passed later, unfortunately exposing other problems with the vehicle that I'm now working through. I wish GM sold a locking version of this cap. On this vehicle though, the rubber hoses that connect the filler neck to the tank are plainly visible in the wheel well. So a locking cap is more about appearing to be more work for thieves anyway, than actual security. If you're having gas cap problems with your GM vehicle and this one fits it, just buy this.
Review: Fixed rough idle - This is as described, fit my 2000 bonneville perfectly. Super easy to install and sealed up the filler neck, just tighten the 3 clicks and after a short drive the service engine light is off. Had a very rough idle on restart after it was warmed up and this solved it.

## Features

- Helps provide a tight seal to keep your vehicle's fuel tank from releasing fumes
- Helps prevent elements from entering the fuel tank
- GM-recommended replacement part for your GM vehicle's original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured to GM OE specification for fit, form, and function
- Meticulously tested to be free of manufacturing defects in materials and craftsmanship

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000C9SJUC |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #15,832 in Automotive ( See Top 100 in Automotive ) #50 in Automotive Replacement Fuel Tank Caps |
| Brand | GM GENUINE PARTS |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,874) |
| Date First Available | September 20, 2007 |
| Exterior Finish | Black |
| Global Trade Identification Number | 00021625764139 |
| Item Weight | 2.88 ounces |
| Item dimensions L x W x H | 3.4 x 3.4 x 2.4 inches |
| Item model number | GT261 |
| Manufacturer | AC Delco |
| Manufacturer Part Number | 19207873 |
| Material | Plastic |
| Model | Fuel Tank Filler Cap |
| OEM Part Number | 19207873 |
| Product Dimensions | 3.4 x 3.4 x 2.4 inches |
| Style | Modern |
| UPC | 021625764139 |
| Vehicle Service Type | Car, Truck |

## Product Details

- **Brand:** GM GENUINE PARTS
- **Color:** Black
- **Exterior Finish:** Black
- **Item dimensions L x W x H:** 3.4 x 3.4 x 2.4 inches
- **Material:** Plastic

## Images

![GM Genuine Parts GT261 (19207873) Fuel Tank Filler Cap - Image 1](https://m.media-amazon.com/images/I/51qV86ixJYL.jpg)

## Questions & Answers

**Q: How do I attach the tether?**
A: Use a large flat screwdriver to pry under the old tether and pop it out.  On the one I received in 2020, there is no need to push the center pin of the new tether out.  In fact, were you to do so, it would likely break it.  Look carefully at the end of the new tether and you will see that the pin has two raised sections that hold it in place.  The new tether just snaps right in.

**Q: For the price, want to make sure it fits the fuel tank on my 1997 chevy blazer lt.  I have a check engine light (p1441) and want to try this first**
A: i did a search on ebay motors and it says it should fit.

**Q: What is that thing on the side? Does it just go in the opening?**
A: It replaces how ur old one is made so when u open ur cap u done have to put it on ur car this just hangs is all.

**Q: Right hand drive ?**
A: My gas fuel cap is on left hand or drivers side. Fit my 2005 Deville Cadillac, eliminating  the check engine light concern.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's a quality cap that seals well.
*by G***. on October 7, 2025*

This cap replaced a Motorad locking cap that I bought a few months ago. The Motorad cap was too tight in the filler neck opening, requiring IMO too much effort to remove or replace it. My vehicle is a recent purchase that I'm working through readying for it's Calif emissions test. The self-tests (I/M readiness monitors) that vehicles do after their battery is disconnected and reconnected, was failing at the last step, EVAP (with the other cap). I bought this cap because it was designed by GM for their vehicles. The cap fits the filler opening better and the EVAP monitor passed later, unfortunately exposing other problems with the vehicle that I'm now working through. I wish GM sold a locking version of this cap. On this vehicle though, the rubber hoses that connect the filler neck to the tank are plainly visible in the wheel well. So a locking cap is more about appearing to be more work for thieves anyway, than actual security. If you're having gas cap problems with your GM vehicle and this one fits it, just buy this.

### ⭐⭐⭐⭐⭐ Fixed rough idle
*by D***K on October 19, 2025*

This is as described, fit my 2000 bonneville perfectly. Super easy to install and sealed up the filler neck, just tighten the 3 clicks and after a short drive the service engine light is off. Had a very rough idle on restart after it was warmed up and this solved it.

### ⭐⭐⭐⭐⭐ Another flawless victory
*by S***. on October 28, 2025*

Don't go to the big box stores this one works great and it's OEM The box store one fits too snug barely can't get it in probably won't in the winter

## Frequently Bought Together

- ACDelco GM Original Equipment GT261 Fuel Tank Filler Cap, Black
- Dorman 911-039 Vapor Canister Purge Valve Compatible with Select Models
- ACDelco GM Original Equipment 214-633 Vapor Canister Vent Valve

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-20*