--- product_id: 444070633 title: "Dorman 917-299 Transmission Filler Lock Pin" brand: "dorman" price: "€ 24.21" currency: EUR in_stock: true reviews_count: 5 category: "Dorman" url: https://www.desertcart.gr/products/444070633-dorman-917-299-transmission-filler-lock-pin store_origin: GR region: Greece --- # Exact OE fit Durable build Trusted US expertise Dorman 917-299 Transmission Filler Lock Pin **Brand:** dorman **Price:** € 24.21 **Availability:** ✅ In Stock ## Summary > 🔧 Lock in flawless transmission performance with Dorman precision! ## Quick Answers - **What is this?** Dorman 917-299 Transmission Filler Lock Pin by dorman - **How much does it cost?** € 24.21 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/444070633-dorman-917-299-transmission-filler-lock-pin) ## 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 for long-lasting durability and reliability - • **Expert-Backed Quality:** Developed by US-based pros with over 100 years of automotive know-how - • **Precision OE Replacement:** Seamlessly restores original transmission filler pin fit and function - • **Lightweight & Ready to Paint:** Ultra-light 0.28g design that can be customized to match your vehicle - • **Effortless Compatibility Check:** Use your vehicle’s make, model & trim to guarantee perfect fit ## Overview The Dorman 917-299 Transmission Filler Lock Pin is a direct OE replacement designed to restore the original fit and function of your vehicle’s transmission fluid filler cap. Engineered with durable materials and backed by over a century of US automotive expertise, this lightweight, ready-to-paint pin ensures reliable, long-term performance and perfect compatibility when matched to your vehicle’s specifications. ## 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: Transmission filler locks - Exactly the same as the Mercedes part but cheaper, 5* Review: perfect - These were a perfect fit, just like OEM. Arrived very quickly and seem to be of good quality. ## 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 desertcart Garage ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00FLFMU8O | | Brand | Dorman | | Customer Reviews | 4.6 4.6 out of 5 stars (495) | | Date First Available | 8 October 2013 | | Exterior | Ready To Paint If Needed | | Item Weight | 0.28 g | | Item model number | 917-299 | | Manufacturer | Dorman - OE Solutions | | Manufacturer Part Number | 917-299 | | Model | 917-299 | | OEM Part Number | 1409910055 | | Position | Center | | Product Dimensions | 6.99 x 6.99 x 6.99 cm; 0.28 g | | Special Features | Durable | ## Images ![Dorman 917-299 Transmission Filler Lock Pin - Image 1](https://m.media-amazon.com/images/I/81wwt53PmBL.jpg) ![Dorman 917-299 Transmission Filler Lock Pin - Image 2](https://m.media-amazon.com/images/I/81XTBukXvwL.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 ### ⭐⭐⭐⭐⭐ Transmission filler locks *by M***Y on 21 June 2017* Exactly the same as the Mercedes part but cheaper, 5* ### ⭐⭐⭐⭐⭐ perfect *by N***C on 9 April 2023* These were a perfect fit, just like OEM. Arrived very quickly and seem to be of good quality. ### ⭐⭐⭐⭐⭐ Didn't work for me (Whoops, my fault ... updating to 5 stars) *by G***D on 30 June 2019* These locks didn't work for me (see original review below), but now that I ordered and have received a new CAP and O-ring and lock-pin set, I can see WHY these pins didn't work for me originally: the original cap had been damaged somehow when I removed it. There's supposed to be a small "hook" part of the cap that descends down and catches the lip of the filler tube, and then the lock pin presses against that hook to make it lock tightly against the tube lip. My removed original cap was missing that hook; must've broken off when I removed the original lock pin. Anyway, now that I have the complete kit in hand, I can see that these Dorman replacement pins are identical to what cam in the kit, and WILL indeed work properly to lock the hook of the replacement cap against the filler tube. I'm updating my review to 5-stars so that others aren't discouraged from buying them. ---------- Original 2-star review below ---------- I don't can't quite figure WHY these don't work for my 2009 MB CL600 transmission dipstick. When I bought it recently, it was clear that the OEM cover on the dipstick tube had never been "popped" since new. It was locked on solidly with the original black plastic locking tab. I broke off that tab and ordered these red locking pin replacements. After draining and replacing the transmission fluid, I used one of these lock pins to re-lock the OEM cap onto the dipstick tube. It seemed to slide into and fit the OEM top perfectly ... but the cap isn't in fact locked onto the dipstick tube. I can still easily pull the top off. No "click"; nothing. And I'm a little concerned that air pressure inside the transmission might cause the top to pop off (tho' it's been for a few long drives so far with the unlocked top staying put). I'm going to place an order for a new top and lock, but was really hoping these inexpensive lock pins would do the trick. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/444070633-dorman-917-299-transmission-filler-lock-pin](https://www.desertcart.gr/products/444070633-dorman-917-299-transmission-filler-lock-pin) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-08-10*