This page lists 7 ignition parts for the 2026 Ram 4500, across 5 part types, covering both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
On the 2026 Ram 4500, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. 5 parts of the 7 listed are Camshaft Position Sensor (2 parts), Crankshaft Position Sensor (2 parts) and Condenser / Capacitor (1 part). The other 2 part types cover the remaining 2 parts.
The 2026 Ram 4500 was sold with both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
Every ignition part listed for the 2026 Ram 4500 comes from MOPAR.
Each part number listed for the 2026 Ram 4500 opens a page with every vehicle that part fits.
Camshaft Position Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 5149054AC | 🇺🇸 US 🇨🇦 CA | Fits HEMI HD EngineCrew Cab Crew Cab | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68581416AB | 🇺🇸 US 🇨🇦 CA | Fits Cummins Engine.Heavy Duty Truck Federal Emissions or 50 State Emissions, with Emergency Vehicle Emissions | View on Amazon |
This table covers the sensors that report camshaft position to the ECU. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.
2 Camshaft Position Sensor parts for the 2026 Ram 4500 come from MOPAR.
Listed part numbers: MOPAR 5149054AC and MOPAR 68581416AB.
Condenser / Capacitor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 56028644AC | 🇺🇸 US 🇨🇦 CA | Fits HEMI HD EngineCrew Cab Crew Cab | View on Amazon |
This table covers the capacitors used in this electrical or A/C circuit.
This group shows a single part: MOPAR 56028644AC.
Crankshaft Position Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68140678AB | 🇺🇸 US 🇨🇦 CA | Fits HEMI HD EngineCrew Cab Crew Cab | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68581417AB | 🇺🇸 US 🇨🇦 CA | Fits Cummins Engine.Heavy Duty Truck Federal Emissions or 50 State Emissions, with Emergency Vehicle Emissions | View on Amazon |
This table covers the sensors that report crankshaft position and engine speed. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.
2 Crankshaft Position Sensor parts for the 2026 Ram 4500 come from MOPAR.
Part numbers include MOPAR 68140678AB and MOPAR 68581417AB.
Diesel Glow Plug Controller
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68651770AB | 🇺🇸 US 🇨🇦 CA | Glow Plug Module | View on Amazon |
This table covers the controllers that fire the glow plugs.
One part is listed for the 2026 Ram 4500 — MOPAR 68651770AB.
Spark Plug Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 53021569AD | 🇺🇸 US 🇨🇦 CA | Spark Plug Well Gasket | View on Amazon |
This table covers the gaskets that seal the Spark Plug. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
This group shows a single part: MOPAR 53021569AD.
Buying Ignition Parts for a 2026 Ram 4500
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Match the engine first. Every ignition part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Camshaft Position Sensor and Crankshaft Position Sensor .
Frequently Asked Questions
How many ignition parts fit the 2026 Ram 4500?
Our catalog currently lists 7 ignition parts for the 2026 Ram 4500 across 5 subcategories and 1 brand, covering both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Each part is matched to the engine(s) it fits.
Do ignition parts differ between 2026 Ram 4500 engines?
Yes. Every ignition part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of ignition problems on a 2026 Ram 4500?
Common symptoms include misfires under load, rough idle, flashing check-engine light, or poor starting in damp weather. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2026 Ram 4500 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2026 Ram 4500?
First match the engine — each row shows which engine(s) the part fits. Then gap matters even on “pre-gapped” plugs — verify against spec, and replace coil boots when they come off a high-mileage engine. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2026 Ram 4500
Ignition Parts for Other Ram 4500 Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.