Aftertreatment Parts

Aftertreatment Parts Diesel Engine Emissions Components Supplier based out of Calgary, Alberta and Fort McMurray.

🔧 Inlet vs. Outlet NOx Sensors — How do we know which one to replace ?A NOx sensor fault doesn’t always mean the sensor ...
09/15/2026

🔧 Inlet vs. Outlet NOx Sensors — How do we know which one to replace ?

A NOx sensor fault doesn’t always mean the sensor itself is bad. Understanding what the inlet and outlet sensors are actually measuring can help you avoid replacing the wrong part—or overlooking the real problem.

We break down how both sensors work, what their readings can tell you, and what to check before replacing one.

👇 Read the full article on AftertreatmentParts.com

https://aftertreatmentparts.com/blogs/technical-advice/inlet-vs-outlet-nox-sensor-how-to-tell-which-one-is-bad

🚛 Does a DPF regen use DEF?A lot of people assume the DPF and SCR systems are basically doing the same job inside the ex...
09/01/2026

🚛 Does a DPF regen use DEF?

A lot of people assume the DPF and SCR systems are basically doing the same job inside the exhaust — but they’re actually two completely separate emissions-reduction processes.

🔥 The DPF deals with soot.
It traps particulate matter and burns that soot off during regeneration.

💧 The SCR system deals with NOx.
It uses DEF and the SCR catalyst to reduce nitrogen oxide emissions.

And here’s the part that surprises a lot of people:

DEF injection is NOT required for DPF regeneration.

The two systems may be packaged together inside the same aftertreatment module, but chemically and functionally, they’re doing very different jobs.

Understanding that difference can make diagnosing aftertreatment faults a whole lot easier — and can help prevent replacing parts that were never responsible for the problem in the first place.

We broke down how both systems actually work, why they’re so often confused, and what the difference means when troubleshooting a truck.

👉 Read the full article on AftertreatmentParts.com

🔧 Replacing DEF Pumps Over and Over? The Pump Might Not Be the Problem.We've seen this issue more times than we can coun...
08/25/2026

🔧 Replacing DEF Pumps Over and Over? The Pump Might Not Be the Problem.

We've seen this issue more times than we can count.

A DEF pump fails and begins leaking DEF into the 12-pin electrical connector. The pump gets replaced—but the contaminated connector doesn't.

The result? Corroded terminals, damaged wiring, electrical faults and, eventually, what looks like another failed DEF pump.

Before installing another pump, there's one thing you should be checking.

We put together a quick article explaining what happens, what to look for, and how to prevent repeat DEF pump failures.

👇 Read the full article on AftertreatmentParts.com

https://aftertreatmentparts.com/blogs/technical-advice/def-pump-keeps-failing-the-12-pin-connector-could-be-the-real-problem

A few extra minutes inspecting the connector could save you another pump—and a whole lot of downtime.

We’ve Lowered Our Prices! 📉We’ve recently reviewed and adjusted pricing across our product lineup — and the result is lo...
08/25/2026

We’ve Lowered Our Prices! 📉

We’ve recently reviewed and adjusted pricing across our product lineup — and the result is lower prices on many of the parts we carry.

At AftertreatmentParts.com, our goal has always been simple: provide quality heavy-duty aftertreatment and emissions parts at a fair price, without the dealership markup.

Many of our products have now received permanent price reductions, including select:

🔧 NOx & emissions sensors
🔧 DEF system components
🔧 Dosing valves & injectors
🔧 Pumps, sensors, and other aftertreatment parts

And as always, we continue to offer:

🚚 Overnight shipping available across Canada & the USA
🇺🇸 No customs headaches for our U.S. customers — we handle all import duties, customs paperwork, and associated fees
🛡️ 365-day warranty
💰 Pricing well below typical dealer costs

If you haven’t checked our pricing lately, now is a good time to take another look.

AftertreatmentParts.com

Interested in reseller/shop pricing?Looking for a better source for heavy-duty emissions parts?AftertreatmentParts.com w...
08/11/2026

Interested in reseller/shop pricing?

Looking for a better source for heavy-duty emissions parts?

AftertreatmentParts.com works with parts resellers, independent repair shops, fleets, and mechanics across Canada and the USA.

We supply DEF pumps, dosing valves, NOx sensors, temperature sensors, pressure sensors, control modules, and more — with competitive pricing, fast shipping, technical support, and a 365-day warranty.

🇨🇦 Canadian customers: Fast shipping nationwide.
🇺🇸 U.S. customers: We handle the customs process and pay the applicable duties, so your order arrives without unexpected import charges.

Interested in reseller/shop pricing or need a quote?

📞 1-587-438-8819
✉️ [email protected]
🌐 AftertreatmentParts.com

Send us a message with the parts or part numbers you're looking for and we'll get you a quote.

🍁🦅 We Ship Overnight Across Canada & the USA — No Customs HasslesWherever your equipment is working — we make sure your ...
02/26/2026

🍁🦅 We Ship Overnight Across Canada & the USA — No Customs Hassles

Wherever your equipment is working — we make sure your parts get there fast.

At AftertreatmentParts.com, we ship:

✅ Overnight across Canada
✅ Overnight to the United States
✅ Door-to-door service
✅ All customs paperwork handled
✅ All duties & brokerage prepaid

That means:

• No surprise charges
• No border delays
• No paperwork headaches
• No downtime waiting on customs clearance

We handle the import/export process so you can focus on keeping your equipment running.

Whether you're in Alberta, Texas, Ontario, or North Dakota — we deliver fast, clean, and professionally.

Need it tomorrow?
We’ve got you covered.

🌎 www.aftertreatmentparts.com

🚨 Emissions fault codes won’t clear—even after replacing the part?You’re not alone. Modern diesel engines don’t always r...
12/11/2025

🚨 Emissions fault codes won’t clear—even after replacing the part?

You’re not alone. Modern diesel engines don’t always reset themselves automatically. In many cases, the ECM requires a specific OEM reset or relearn procedure before it will clear the fault—even if the new part is installed and working perfectly.

Simply swapping components or clearing codes isn’t always enough. That’s why so many operators think their brand-new DEF pump, NOx sensor, or temp sensor is “still bad,” when the real missing piece is the manufacturer’s verification procedure.

We just published a blog post explaining why this happens, what to expect, and how to avoid unnecessary downtime.

👉 Read the full article here:
https://aftertreatmentparts.com/blogs/technical-advice/why-your-emissions-fault-code-doesn-t-clear-even-after-replacing-the-parts

If you ever need help diagnosing or troubleshooting emissions components, we’re here to help. 💪🛠️

🚨 Is Your Diesel Truck / Equipment Throwing NOx Sensor Codes?If your engine is losing power, burning more fuel, or stuck...
08/26/2025

🚨 Is Your Diesel Truck / Equipment Throwing NOx Sensor Codes?

If your engine is losing power, burning more fuel, or stuck in derate mode, your NOx sensor might be to blame. We just published a new blog post covering:

✔️ Symptoms of a bad NOx sensor
✔️ Common fault codes (SPN 4094, P2201, etc.)
✔️ How to diagnose and replace it
✔️ How to avoid downtime with quality replacements



🛠️ Read the full post here; https://aftertreatmentparts.com/blogs/technical-advice/how-to-tell-if-your-nox-sensor-is-failing-and-what-to-do-about-it

🚨 Shipping Just Got a Major Upgrade! 🚨We now offer FREE Overnight Shipping (USA & CAN) on all orders !✅ DEF Pumps✅ NOx S...
06/26/2025

🚨 Shipping Just Got a Major Upgrade! 🚨

We now offer FREE Overnight Shipping (USA & CAN) on all orders !

✅ DEF Pumps
✅ NOx Sensors
✅ Dosing Modules
✅ Emissions Control Components

Available across Canada & the USA!
✔️ No duty fees
✔️ No brokerage
✔️ Same-day shipping if you order before 1PM

Fast. Free. No border headaches.
👉 AftertreatmentParts.com

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Calgary & Fort McMurray
Fort McMurray, AB

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