The 2018 Ram 3500 has 83 ignition parts with verified fitment on this page — 6 part types and 23 brands, covering all 3 engine options (5.7L V8, 6.4L V8 and 6.7L L6 DIESEL Turbocharged). Each part includes a manufacturer part number and application notes.
On the 2018 Ram 3500, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. Most of the listed parts are Camshaft Position Sensor (25 parts), Crankshaft Position Sensor (20 parts) and Ignition Coil (20 parts). The other 3 part types cover the remaining 18 parts.
The 2018 Ram 3500 was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
23 brands supply ignition parts for the 2018 Ram 3500, led by STANDARD MOTOR PRODUCTS (12 parts), WALKER PRODUCTS (7 parts) and NGK (7 parts), plus 20 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 2018 Ram 3500. 18 parts have it, including STANDARD MOTOR PRODUCTS PC823T (Camshaft Position Sensor) and DELPHI SS12198 (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 |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 5.7L V8 | PC823T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| DORMAN Fits: 5.7L V8 | 917741 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DORMAN Fits: 6.7L L6 DIESEL Turbocharged | 917735 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HOLSTEIN Fits: 5.7L V8 | 2CAM0519 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HOLSTEIN Fits: 6.7L L6 DIESEL Turbocharged | 2CAM0307 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PRENCO Fits: 5.7L V8 | 4E1120 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PRENCO Fits: 6.7L L6 DIESEL Turbocharged | 4E1038 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP Fits: 5.7L V8 | SK917741 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | PC590T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 5.7L V8 | CAM266 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VEMO Fits: 5.7L V8 | V33720115 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI Popular Fits: 5.7L V8 | SS11381 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MOPAR Popular Fits: 5.7L V8 | 5149054AC | 🇺🇸 US 🇨🇦 CA | Fits Mega CabHD 4WD | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 5.7L V8 | PC823 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Popular Fits: 6.7L L6 DIESEL Turbocharged | PC590 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS Popular Fits: 6.7L L6 DIESEL Turbocharged | 2351221 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| ASTEMO / HITACHI Fits: 5.7L V8 | CPS0219 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DELPHI Fits: 6.7L L6 DIESEL Turbocharged | SS11916 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HELLA Fits: 5.7L V8 | 358380381 | 🇺🇸 US 🇨🇦 CA | Big Horn or SLT Model or Tradesman | View on Amazon |
| NTK Fits: 5.7L V8 | EC0034 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NTK Fits: 6.7L L6 DIESEL Turbocharged | EC0327 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS Fits: 5.7L V8 | 2351288 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WALKER PRODUCTS Fits: 5.7L V8 | 2352407 | 🇺🇸 US 🇨🇦 CA | Combo Kit | View on Amazon |
| WELLS Fits: 5.7L V8 | 5S11768 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: 6.7L L6 DIESEL Turbocharged | 5S7422 | 🇺🇸 US 🇨🇦 CA | Mounting Bracket Included: No | 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.
25 Camshaft Position Sensor parts for the 2018 Ram 3500 come from 14 brands — STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, DORMAN and 11 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS PC823T.
The Economy section lists 11 options from STANDARD MOTOR PRODUCTS, DORMAN, HOLSTEIN and 4 other brands — the catalog's value-priced group. STANDARD MOTOR PRODUCTS PC823T is listed in this group.
In the Standard Replacement grade, WALKER PRODUCTS, DELPHI, STANDARD MOTOR PRODUCTS and 5 other brands supply 14 parts: built to original-equipment specification. A representative part number is DELPHI SS11381.
Condenser / Capacitor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 5.7L V8 | 56028644AC | 🇺🇸 US 🇨🇦 CA | Fits Mega CabHD 4WD | View on Amazon |
| WELLS Fits: 5.7L V8 | 1B1018 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the capacitors used in this electrical or A/C circuit.
2 Condenser / Capacitor parts for the 2018 Ram 3500 come from 2 brands — MOPAR and WELLS.
Part numbers include MOPAR 56028644AC and WELLS 1B1018.
Crankshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 5.7L V8 | 907792 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DORMAN Fits: 6.7L L6 DIESEL Turbocharged | 917735 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HOLSTEIN Fits: 5.7L V8 | 2CRK0359 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HOLSTEIN Fits: 6.7L L6 DIESEL Turbocharged | 2CAM0307 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SPECTRA PREMIUM Fits: 5.7L V8 | S10399 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SPECTRA PREMIUM Fits: 6.7L L6 DIESEL Turbocharged | S10201 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | PC590T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| ULTRA-POWER Fits: 5.7L V8 | PC987 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UNITED MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | CAM150 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI Popular Fits: 5.7L V8 | SS12198 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MOPAR Popular Fits: 5.7L V8 | 68140678AB | 🇺🇸 US 🇨🇦 CA | Fits Mega CabHD 4WD | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 5.7L V8 | PC987 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Popular Fits: 6.7L L6 DIESEL Turbocharged | PC590 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS Popular Fits: 6.7L L6 DIESEL Turbocharged | 2351221 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| NTK Fits: 5.7L V8 | EH0094 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NTK Fits: 6.7L L6 DIESEL Turbocharged | EC0327 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS Fits: 5.7L V8 | 2351666 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WALKER PRODUCTS Fits: 5.7L V8 | 2352407 | 🇺🇸 US 🇨🇦 CA | Combo Kit | View on Amazon |
| WELLS Fits: 5.7L V8 | 5S13522 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: 6.7L L6 DIESEL Turbocharged | 5S7422 | 🇺🇸 US 🇨🇦 CA | Mounting Bracket Included: No | 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.
20 Crankshaft Position Sensor parts for the 2018 Ram 3500 come from 11 brands — STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, DORMAN and 8 other brands. The "Popular" part is DELPHI SS12198.
The Economy section: 9 options from DORMAN, HOLSTEIN, SPECTRA PREMIUM and 3 other brands. DORMAN 907792 is listed in this group.
Standard Replacement: 11 parts, from WALKER PRODUCTS, STANDARD MOTOR PRODUCTS, NTK and 3 other brands. A representative part number is DELPHI SS12198.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 5.7L V8 | SKIC102 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Popular Fits: 5.7L V8 | UF504T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| B&B Fits: 5.7L V8 | BB2504 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FVP Fits: 5.7L V8 | UF504F | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HOLSTEIN Fits: 5.7L V8 | 2IGC0173 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SPECTRA PREMIUM Fits: 5.7L V8 | C693 | 🇺🇸 US 🇨🇦 CA | Ignition Coil Mounts to Cylinder Head | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 5.7L V8 | UF504TK8 | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| ULTRA-POWER Fits: 5.7L V8 | UF504 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VEMO Fits: 5.7L V8 | V33700011 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ASTEMO / HITACHI Popular Fits: 5.7L V8 | IGC0164 | 🇺🇸 US 🇨🇦 CA | Coil Type: Individual | View on Amazon |
| DELPHI Fits: 5.7L V8 | GN10352 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 5.7L V8 | UF504 | 🇺🇸 US 🇨🇦 CA | Blue Streak | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DENSO Popular Fits: 5.7L V8 | 6735202 | 🇺🇸 US 🇨🇦 CA | Direct Ignition Coil or Coil On Plug | View on Amazon |
| MOPAR Fits: 5.7L V8 | 68238603AA | 🇺🇸 US 🇨🇦 CA | Sold Individually | View on Amazon |
| NGK Fits: 5.7L V8 | 48716 | 🇺🇸 US 🇨🇦 CA | Twin Spark Ignition System1 Coil Fires 2 Plugs | View on Amazon |
| NGK Fits: 5.7L V8 | 49469 | 🇺🇸 US 🇨🇦 CA | Twin Spark Ignition System1 Coil Fires 2 Plugs | View on Amazon |
| NGK Fits: 5.7L V8 | 49420 | 🇺🇸 US 🇨🇦 CA | Twin Spark Ignition System1 Coil Fires 2 Plugs | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 5.7L V8 | COP107 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS Fits: 5.7L V8 | 9212093 | 🇺🇸 US 🇨🇦 CA | Single Coil | View on Amazon |
| WELLS Fits: 5.7L V8 | 5C1569 | 🇺🇸 US 🇨🇦 CA | Requires External Resistor: YES | 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.
20 Ignition Coil parts for the 2018 Ram 3500 come from 16 brands — STANDARD MOTOR PRODUCTS, NGK, SKP and 13 other brands. The "Popular" part is SKP SKIC102.
The Economy section: 9 options from STANDARD MOTOR PRODUCTS, SKP, B&B and 5 other brands. SKP SKIC102 is listed in this group.
In the Premium grade, ASTEMO / HITACHI, DELPHI and STANDARD MOTOR PRODUCTS supply 3 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is ASTEMO / HITACHI IGC0164.
Standard Replacement: 8 parts, from NGK, DENSO, MOPAR and 3 other brands. A representative part number is DENSO 6735202.
Spark Plug
Summary: Notes include pre-set gaps of 0.040", 0.041", 0.044", 0.045" and 0.054". Replacement brands in this table include NGK, BOSCH and DENSO.
Copper / Nickel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMPION Fits: 5.7L V8 | 446 | 🇺🇸 US 🇨🇦 CA | Copper PlusPre-Set Gap: 0.041" | View on Amazon |
Double Platinum (lasts up to 3x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Fits: 5.7L V8 | 8162 | 🇺🇸 US 🇨🇦 CA | OE Fine Wire Double PlatinumPre-Set Gap: 0.044" | View on Amazon |
Iridium (lasts up to 4x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK Popular Fits: 5.7L V8 | 4469 | 🇺🇸 US 🇨🇦 CA | Iridium IXPre-Set Gap: 0.044" | View on Amazon |
| NGK Popular Fits: 5.7L V8 | 92145 | 🇺🇸 US 🇨🇦 CA | Laser IridiumPre-Set Gap: 0.044" | View on Amazon |
| BOSCH Fits: 5.7L V8 | 9673 | 🇺🇸 US 🇨🇦 CA | OE Fine Wire Double IridiumPre-Set Gap: 0.044" | View on Amazon |
| CHAMPION Fits: 5.7L V8 | 9055 | 🇺🇸 US 🇨🇦 CA | IridiumPre-Set Gap: 0.054" | View on Amazon |
| DENSO Fits: 5.7L V8 | 4703 | 🇺🇸 US 🇨🇦 CA | Iridium TTPre-Set Gap: 0.040" | View on Amazon |
| DENSO Fits: 5.7L V8 | 5343 | 🇺🇸 US 🇨🇦 CA | Iridium PowerPre-Set Gap: 0.044" | View on Amazon |
| DENSO Fits: 5.7L V8 | 3417 | 🇺🇸 US 🇨🇦 CA | Iridium Long LifePre-Set Gap: 0.044" | View on Amazon |
| SKP Fits: 5.7L V8 | SP1022 | 🇺🇸 US 🇨🇦 CA | Tapered Ground Electrode with Platinum Chip | View on Amazon |
Platinum (lasts up to 2x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 5.7L V8 | 20 | 🇺🇸 US 🇨🇦 CA | ProfessionalRapidfire | View on Amazon |
| BOSCH Fits: 5.7L V8 | 6734 | 🇺🇸 US 🇨🇦 CA | OE Fine Wire PlatinumPre-Set Gap: 0.044" | View on Amazon |
| NGK Fits: 5.7L 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: 5.7L 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.
14 Spark Plug parts are listed for the 2018 Ram 3500, from NGK, BOSCH, DENSO and 3 other brands. NGK 4469 carries the "Popular" badge.
In the Copper / Nickel grade, CHAMPION supplies 1 part: grouped under the catalog's "Copper / Nickel" designation — the notes column spells out what sets them apart. A representative part number is CHAMPION 446.
In the Double Platinum (lasts up to 3x longer than Copper / Nickel) grade, BOSCH supplies 1 part: grouped under the catalog's "Double Platinum (lasts up to 3x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is BOSCH 8162.
The Iridium (lasts up to 4x longer than Copper / Nickel) section lists 8 options from DENSO, NGK, BOSCH and 2 other brands — grouped under the catalog's "Iridium (lasts up to 4x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. NGK 4469 is listed in this group.
In the Platinum (lasts up to 2x longer than Copper / Nickel) grade, ACDELCO, BOSCH and NGK supply 3 parts: 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 ACDELCO 20.
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.
Spark Plug / Ignition Coil Boot
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 5.7L V8 | 20521 | 🇺🇸 US 🇨🇦 CA | Federal Wire | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 5.7L 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 2018 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.
Part numbers include STANDARD MOTOR PRODUCTS 20521 and STANDARD MOTOR PRODUCTS SPP217E.
Buying Ignition Parts for a 2018 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 2018 Ram 3500?
Our catalog currently lists 83 ignition parts for the 2018 Ram 3500 across 6 subcategories and 23 brands, covering all 3 engine options (5.7L V8, 6.4L V8 and 6.7L L6 DIESEL Turbocharged). Each part is matched to the engine(s) it fits.
Do ignition parts differ between 2018 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 2018 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 2018 Ram 3500?
Notes on this page include pre-set gaps of 0.040", 0.041", 0.044", 0.045" 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 2018 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 2018 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 2018 Ram 3500
Ignition Parts for Other Ram 3500 Years
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