This page lists 28 ignition parts for the 2025 Ram 3500, across 7 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 2025 Ram 3500, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. 20 parts of the 28 listed are Camshaft Position Sensor (7 parts), Crankshaft Position Sensor (7 parts) and Spark Plug (6 parts). The other 4 part types cover the remaining 8 parts.
The 2025 Ram 3500 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.
11 brands supply ignition parts for the 2025 Ram 3500, led by STANDARD MOTOR PRODUCTS (8 parts), MOPAR (4 parts) and HOLSTEIN (3 parts), plus 8 more brands. Quality grades include Standard Replacement, Economy and Iridium.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2025 Ram 3500. 6 parts have it, including MOPAR 5149054AC (Camshaft Position Sensor) and MOPAR 68140678AB (Crankshaft Position Sensor). Each part number opens a page with every vehicle that part fits.
Camshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: 6.4L V8 | 2CAM0519 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | PC823T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Popular Fits: 6.4L V8 | 5149054AC | 🇺🇸 US 🇨🇦 CA | Fits HEMI Upgrade HD EngineCrew Cab | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 6.4L V8 | PC823 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HELLA Fits: 6.4L V8 | 358380381 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS Fits: 6.4L V8 | 2351288 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WELLS Fits: 6.4L V8 | 5S11768 | 🇺🇸 US 🇨🇦 CA | 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.
7 Camshaft Position Sensor parts for the 2025 Ram 3500 come from 6 brands — STANDARD MOTOR PRODUCTS, HOLSTEIN, MOPAR and 3 other brands. The "Popular" part is MOPAR 5149054AC.
The Economy section lists 2 options from HOLSTEIN and STANDARD MOTOR PRODUCTS — the catalog's value-priced group. HOLSTEIN 2CAM0519 is listed in this group.
In the Standard Replacement grade, MOPAR, STANDARD MOTOR PRODUCTS, HELLA and 2 other brands supply 5 parts: built to original-equipment specification. A representative part number is MOPAR 5149054AC.
This group includes MOPAR 5149054AC, HOLSTEIN 2CAM0519 and STANDARD MOTOR PRODUCTS PC823T and the remaining parts above.
Condenser / Capacitor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 56028644AC | 🇺🇸 US 🇨🇦 CA | Fits HEMI Upgrade HD EngineCrew 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
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: 6.4L V8 | 2CRK0359 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ULTRA-POWER Fits: 6.4L V8 | PC987 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Popular Fits: 6.4L V8 | 68140678AB | 🇺🇸 US 🇨🇦 CA | Fits HEMI Upgrade HD EngineCrew Cab | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 6.4L V8 | PC987 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS Fits: 6.4L V8 | 2351666 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WELLS Fits: 6.4L V8 | 5S13522 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | PC1269 | 🇺🇸 US 🇨🇦 CA | 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.
7 Crankshaft Position Sensor parts for the 2025 Ram 3500 come from 6 brands — STANDARD MOTOR PRODUCTS, HOLSTEIN, ULTRA-POWER and 3 other brands. The "Popular" part is MOPAR 68140678AB.
The Economy section: 2 options from HOLSTEIN and ULTRA-POWER. HOLSTEIN 2CRK0359 is listed in this group.
Standard Replacement: 4 parts, from MOPAR, STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and 1 other brand. A representative part number is MOPAR 68140678AB.
1 further part sits outside the graded sections, with the same engine-level match.
Listed part numbers: MOPAR 68140678AB, HOLSTEIN 2CRK0359 and ULTRA-POWER PC987, plus the other parts above.
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 2025 Ram 3500 — MOPAR 68651770AB.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: 6.4L V8 | 2IGC0173 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | UF504T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | UF504TK8 | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DENSO Fits: 6.4L V8 | 6735202 | 🇺🇸 US 🇨🇦 CA | Direct Ignition Coil or Coil On Plug | View on Amazon |
This table covers the coils that fire each spark plug. Typical signs include a misfire that follows one cylinder, a snap in damp weather, or a coil that is swollen or cracked. Swap a suspect coil with a neighbor to confirm, then replace boots that tore on the way off.
4 Ignition Coil parts for the 2025 Ram 3500 come from 3 brands — STANDARD MOTOR PRODUCTS, HOLSTEIN and DENSO.
The Economy section: 3 options from STANDARD MOTOR PRODUCTS and HOLSTEIN. HOLSTEIN 2IGC0173 is listed in this group.
Standard Replacement: 1 part, from DENSO. A representative part number is DENSO 6735202.
Listed part numbers: HOLSTEIN 2IGC0173, STANDARD MOTOR PRODUCTS UF504T and STANDARD MOTOR PRODUCTS UF504TK8, plus the other parts above.
Spark Plug
Summary: Notes include pre-set gaps of 0.040", 0.043", 0.044" and 0.054". Replacement brands in this table include NGK, BOSCH and CHAMPION.
Iridium (lasts up to 4x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Fits: 6.4L V8 | 96311 | 🇺🇸 US 🇨🇦 CA | OE Fine Wire Double IridiumPre-Set Gap: 0.044" | View on Amazon |
| BOSCH Fits: 6.4L V8 | 9746 | 🇺🇸 US 🇨🇦 CA | OE Fine Wire IridiumPre-Set Gap: 0.044" | View on Amazon |
| CHAMPION Fits: 6.4L V8 | 9055 | 🇺🇸 US 🇨🇦 CA | IridiumPre-Set Gap: 0.054" | View on Amazon |
| NGK Fits: 6.4L V8 | 96779 | 🇺🇸 US 🇨🇦 CA | Laser IridiumPre-Set Gap: 0.044" | View on Amazon |
Platinum (lasts up to 2x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK Popular Fits: 6.4L V8 | 5018 | 🇺🇸 US 🇨🇦 CA | G-PowerPre-Set Gap: 0.040" | View on Amazon |
Ruthenium (maximum durability & ignitability)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK Popular Fits: 6.4L V8 | 96355 | 🇺🇸 US 🇨🇦 CA | Ruthenium HX High IgnitabilityPre-Set Gap: 0.044" | View on Amazon |
This table covers the spark plugs for this engine. Typical signs include misfire under load, rough idle, or a flashing check-engine light. Verify the gap even on pre-gapped plugs, and replace coil boots that come off a high-mileage engine.
6 Spark Plug parts are listed for the 2025 Ram 3500, from NGK, BOSCH and CHAMPION. NGK 5018 carries the "Popular" badge.
The Iridium (lasts up to 4x longer than Copper / Nickel) section lists 4 options from BOSCH, CHAMPION and NGK — grouped under the catalog's "Iridium (lasts up to 4x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. BOSCH 96311 is listed in this group.
In the Platinum (lasts up to 2x longer than Copper / Nickel) grade, NGK supplies 1 part: grouped under the catalog's "Platinum (lasts up to 2x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is NGK 5018.
In the Ruthenium (maximum durability & ignitability) grade, NGK supplies 1 part: grouped under the catalog's "Ruthenium (maximum durability & ignitability)" designation — the notes column spells out what sets them apart. A representative part number is NGK 96355.
This group includes NGK 5018, BOSCH 96311 and BOSCH 9746 and the remaining parts above.
Spark Plug / Ignition Coil Boot
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | 20521 | 🇺🇸 US 🇨🇦 CA | Federal Wire | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | SPP217E | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the silicone and rubber boots that insulate the coil-to-plug spark path. Typical signs include a misfire in the rain, carbon tracking on the boot, or a snap when you pop the coil off. Replace boots as a set on a high-mileage engine; one cracked boot will take the coil with it.
2 Spark Plug / Ignition Coil Boot parts for the 2025 Ram 3500 come from STANDARD MOTOR PRODUCTS.
The Economy section: 1 option from STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS 20521 is listed in this group.
Standard Replacement: 1 part, from STANDARD MOTOR PRODUCTS. A representative part number is STANDARD MOTOR PRODUCTS SPP217E.
This group includes STANDARD MOTOR PRODUCTS 20521 and STANDARD MOTOR PRODUCTS SPP217E.
Buying Ignition Parts for a 2025 Ram 3500
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 2025 Ram 3500?
Our catalog currently lists 28 ignition parts for the 2025 Ram 3500 across 7 subcategories and 11 brands, 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 2025 Ram 3500 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 2025 Ram 3500?
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 spark-plug gap is listed for the 2025 Ram 3500?
Notes on this page include pre-set gaps of 0.040", 0.043", 0.044" and 0.054". Still verify against spec — even “pre-gapped” plugs should be checked before they go in.
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 2025 Ram 3500 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 2025 Ram 3500?
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 2025 Ram 3500
Ignition Parts for Other Ram 3500 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.