Coolant Block-Off Plate XD344 Billet XDP
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Description
Description
Upgrade Your GM Duramax with the XDP Coolant Block-Off Plate XD344
Designed for 2011-2024 GM 6.6L Duramax engines, the XDP Coolant Block-Off Plate XD344 is the ultimate solution to eliminate coolant leaks from the rear housing of your LML and L5P engine. The factory cover can warp over time, leading to coolant leaks due to corroded gaskets. Our billet aluminum block-off plate is engineered to provide a reliable, leak-free seal.
- Built-In O-Ring Seal: Ensures a secure fit and prevents leaks.
- Black Anodized Finish: Durable and resistant to corrosion.
- Billet Aluminum Construction: High strength and lightweight for optimal performance.
Each coolant block-off plate is ready to install with your existing factory hardware, making it a hassle-free upgrade. Plus, you can trust in the quality of XDP, a leader in OE, OER, and aftermarket diesel parts and accessories for over 20 years.
Whether you’re using your vehicle for work, towing, or leisure, the XDP Coolant Block-Off Plate XD344 is essential for maintaining the integrity of your engine's cooling system. Don’t let coolant leaks affect your performance; upgrade today!
Specifications:
| Country of Origin | Sold As | UPC | Availability | Universal |
|---|---|---|---|---|
| USA | Each | 856217008786 | Available | No |
Warranty Info:
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit.
