---
product_id: 12020681
title: "Dorman 917-299 Transmission Filler Cap Lock Pin Compatible with Select Dodge/Freightliner/Mercedes-Benz Models, 5 Pack"
brand: "dorman"
price: "5.63 OMR"
currency: OMR
in_stock: true
reviews_count: 13
category: "Dorman"
url: https://www.desertcart.com.om/products/12020681-dorman-917-299-transmission-filler-cap-lock-pin-compatible-select
store_origin: OM
region: Oman
---

# Exact OEM fit Restores full transmission cap function Durable, long-lasting build Dorman 917-299 Transmission Filler Cap Lock Pin Compatible with Select Dodge/Freightliner/Mercedes-Benz Models, 5 Pack

**Brand:** dorman
**Price:** 5.63 OMR
**Availability:** ✅ In Stock

## Summary

> 🔩 Lock in reliability, unlock peace of mind!

## Quick Answers

- **What is this?** Dorman 917-299 Transmission Filler Cap Lock Pin Compatible with Select Dodge/Freightliner/Mercedes-Benz Models, 5 Pack by dorman
- **How much does it cost?** 5.63 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/12020681-dorman-917-299-transmission-filler-cap-lock-pin-compatible-select)

## Best For

- dorman enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from premium materials ensuring reliable, long-term performance
- • **Trusted Expertise:** Backed by over a century of automotive innovation and quality assurance
- • **Precision OEM Match:** Seamlessly replaces original locking pin for flawless fit and function
- • **Effortless Installation:** Designed for quick, hassle-free setup—get back on the road faster
- • **Guaranteed Compatibility:** Use our garage tool to confirm perfect fit for your Dodge, Freightliner, or Mercedes-Benz

## Overview

The Dorman 917-299 Transmission Filler Cap Lock Pin is a high-quality, direct replacement part engineered to restore the original locking function of your vehicle’s transmission filler cap. Compatible with select Dodge, Freightliner, and Mercedes-Benz models, this durable pin ensures secure sealing and long-lasting performance. Sold in convenient 5-packs, it’s trusted by professionals and backed by decades of automotive expertise.

## Description

This automatic transmission fluid filler cap locking pin is designed to match the fit and function of the original pin on specified applications, and is engineered for reliable performance and durability.

Review: Single use - Perfect fit. Be aware, these are single use locking pins. Once installed into the black transmission filler tube cap, the top flat (red) tab will have to be broken off to remove the black filler tube cap. Also in order to proper set these locking red pins, make sure the black cap is fully seated onto the filler tube BEFORE installing the red locking pin.
Review: Perfect Fit - Perfect Fit for my vehicle.

## Features

- Direct replacement - this automatic transmission fluid filler cap locking pin is designed to match the fit and function of the original pin on specified applications
- Restores functionality - this pin is made to fit and fully restore part functionality after the original pin fails
- Durable construction - this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
- Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00FLFMU8O |
| Best Sellers Rank | #820,099 in Automotive ( See Top 100 in Automotive ) #1,317 in Automotive Replacement Transmission Hard Parts |
| Brand | Dorman |
| Customer Reviews | 4.6 4.6 out of 5 stars (511) |
| Date First Available | October 3, 2013 |
| Exterior | Machined |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.01 ounces |
| Item model number | 917-299 |
| Manufacturer | Dorman Products |
| Manufacturer Part Number | 917-299 |
| Model | 917-299 |
| OEM Part Number | 1409910055 |
| Position | Center |
| Product Dimensions | 2.75 x 2.75 x 2.75 inches |
| Special Features | Durable, Easy to Install |

## Images

![Dorman 917-299 Transmission Filler Cap Lock Pin Compatible with Select Dodge/Freightliner/Mercedes-Benz Models, 5 Pack - Image 1](https://m.media-amazon.com/images/I/81XTBukXvwL.jpg)
![Dorman 917-299 Transmission Filler Cap Lock Pin Compatible with Select Dodge/Freightliner/Mercedes-Benz Models, 5 Pack - Image 2](https://m.media-amazon.com/images/I/81wwt53PmBL.jpg)

## Questions & Answers

**Q: Is this item considered the FIVE pins pictured or is $5.74 for only one pin?**
A: I believe this offer is for 1 box of 5 pins. The box itself  says Lock Pin and Qty: 1,  but contains 5 pins

**Q: what is this thing??**
A: They are essentially locks for the covers that go on the transmission dipstick tubes on some Mercedes-Benz and Daimler-Chrysler vehicles that do not have dipsticks. You have to use a special dipstick to measure the volume of transmission fluid when the vehicles is warmed to a specified temperature. The locks replace the ones in the cover that usually break when they are being removed to allow access to the measuring port.

**Q: will it fit 2004 mercedes clk55 amg**
A: If it has the Mercedes 722.6 (5 speed transmission) that comes without a dipstick this should fit.

**Q: Is this the right fit for 2002 c240 rwd ?**
A: Unknown, fit a 2000 E300

## Customer Reviews

### ⭐⭐⭐⭐⭐ Single use
*by C***E on January 7, 2026*

Perfect fit. Be aware, these are single use locking pins. Once installed into the black transmission filler tube cap, the top flat (red) tab will have to be broken off to remove the black filler tube cap. Also in order to proper set these locking red pins, make sure the black cap is fully seated onto the filler tube BEFORE installing the red locking pin.

### ⭐⭐⭐⭐⭐ Perfect Fit
*by D***S on January 17, 2026*

Perfect Fit for my vehicle.

### ⭐⭐⭐⭐⭐ 1999 ML still rolling!
*by P***L on December 5, 2025*

Perfect fit.

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**Shop now:** [https://www.desertcart.com.om/products/12020681-dorman-917-299-transmission-filler-cap-lock-pin-compatible-select](https://www.desertcart.com.om/products/12020681-dorman-917-299-transmission-filler-cap-lock-pin-compatible-select)

---

*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-02-24*