Best Glow Plugs For 7 3 Powerstroke: Six Sets Compared
A strong choice for a 7.3 Powerstroke is a complete set of eight plugs with fitment explicitly listed for the engine, making Motorcraft ZD-11 a direct OEM-style option for owners prioritizing the listed original-equipment brand. This roundup compares six sets, including Bosch and aftermarket alternatives, and separates Powerstroke-fit products from IDI plugs that target earlier applications. The product details vary in what they disclose: some give material and thread information, while others focus on fitment or coil design.
Check the engine application and replacement part number before ordering rather than relying on the shared 7.3 label alone. The most useful choice depends on whether you value listed OEM branding, a self-regulating system, dual coils, or broad vehicle fitment.
Motorcraft ZD-11 leads because its listing specifies a set of eight genuine Motorcraft plugs for 7.3L Powerstroke applications and identifies replacement numbering for the plugs. That makes it a straightforward choice for buyers seeking the listed OEM-brand set. Bosch 80033 is a strong alternative with an explicitly stated self-regulating system, while Ensun Dual-Coil Plugs list two heating elements and fast cold-weather starting.
Confirm the exact engine application and part number before purchase.
Our Top Picks
Best OverallThe listing specifies eight genuine Motorcraft plugs for 7.3L Powerstroke applications and identifies ZD-11 replacement numbering.
View on Amazon
Self-Regulating PickThis eight-plug set explicitly fits the 7.3L Powerstroke application and lists a self-regulating system plus corrosion resistance.
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Dual-Coil DesignThe listing fits 7.3L Powerstroke applications and specifies dual coils, nickel construction, and fast-start positioning for cold weather.
View on Amazon- Broad Vehicle Fit DNA MOTORING Glow Plugs
Compare 7.3 Powerstroke Glow Plug Options
| # | Product | Weight | Core Material | Thread Size | Buy |
|---|---|---|---|---|---|
| 1 | 1. Motorcraft ZD-11Best Overall | 10.24 oz | Copper | M14x1.5 | View on Amazon |
| 2 | 2. Bosch 80033Self-Regulating Pick | 3 lb | — | — | View on Amazon |
| 3 | 3. Ensun Dual-Coil PlugsDual-Coil Design | — | Nickel | M14x1.25 | View on Amazon |
| 4 |  4. DNA MOTORING Glow PlugsBroad Vehicle Fit | — | Alloy Steel | M14x1.5 | View on Amazon |
| 5 |  5. Motorcraft ZD-9Motorcraft IDI application set | 6.4 oz | — | — | View on Amazon |
| 6 |  6. waltyotur IDI PlugsEarlier 7.3L cold-start replacement | 7 oz | — | — | View on Amazon |
Detailed Reviews: Best Glow Plugs For 7 3 Powerstroke
#1 · Best Overall
1. Motorcraft ZD-11
- Weight: 10.24 oz
- Core Material: Copper
- Thread Size: M14x1.5
Best for: OEM 1995–2003 Powerstroke set.
Why it ranks #1: The listing specifies eight genuine Motorcraft plugs for 7.3L Powerstroke applications and identifies ZD-11 replacement numbering.
A complete set of eight genuine Motorcraft ZD-11 plugs gives 1995–2003 Ford 7.3L Powerstroke owners an OEM-branded replacement set for servicing all eight glow-plug positions together. The listing notes these now ship as ZD30, linking the earlier ZD-11 designation to the updated part reference.
The eight-plug set supports a full replacement in one purchase, while the stated 7.3L Super Duty Powerstroke Turbo Diesel application makes its intended engine use clear. Copper core and top materials are specified, and the M14x1.5 thread size provides a concrete detail for comparing the plug specification with the vehicle’s requirements. Because the listing identifies the plugs as now shipping ZD30, buyers familiar with ZD-11 can account for the updated designation when ordering.
- Set of eight genuine Motorcraft glow plugs
- Listed for Ford 7.3L Super Duty Powerstroke Turbo Diesel
- Copper core and top materials
- M14x1.5 thread specification
- The listing directs buyers to research vehicle applications before purchase.
Skip it if you need plugs for a 1987–1994 IDI; waltyotur WAUSF7-5284 lists those earlier applications.
For a 1995–2003 Ford 7.3L Powerstroke owner seeking a complete Motorcraft set, this is a direct option to consider. Check the engine and vehicle application carefully, and note that the listing identifies the current shipment as ZD30.
Full product details
| Brand | Motorcraft |
|---|---|
| Compatible with Vehicle Type | Car, Truck |
| Core Material | Copper |
| Item Weight | 10.24 ounces |
| Manufacturer | FORD MOTOR COMPANY |
| Part Number | ZD-11 |
| Model Number | F2TZ-12A342-BA |
| Thread Size | M14x1.5 |
| Top Material Type | Copper |
Listed on Amazon as: 8 PC Motorcraft ZD-11 F4TZ-12A342-BA Glow Plugs 1995-2003 Ford 7.3 Liter
View on Amazon#2 · Self-Regulating Pick
2. Bosch 80033
- Weight: 3 lb
Best for: Self-regulating Bosch replacement.
Why it ranks #2: This eight-plug set explicitly fits the 7.3L Powerstroke application and lists a self-regulating system plus corrosion resistance.
Bosch’s self-regulating system gives this eight-plug set a specific feature for Ford 7.3L Powerstroke trucks from 1995–2003. The listing also identifies corrosion resistance and better fuel combustion as product benefits, making it an option for buyers seeking Bosch plugs with those stated characteristics.
The self-regulating system is the defining feature, while the stated corrosion resistance gives buyers another listed attribute to weigh when choosing replacement plugs. Bosch identifies the set for 1995–2003 Ford 7.3L Powerstroke trucks, and its description names Ford and Motorcraft replacement references, including ZD-11. Those details help buyers compare the application and cross-reference information before ordering; the set of eight corresponds to a full set for the listed engine application.
- Self-regulating system
- Listed as corrosion resistant
- Described as supporting better fuel combustion
- Set of eight for 1995–2003 Ford 7.3L Powerstroke
- The listed benefits do not specify thread size or core material.
Skip it if you specifically want copper-core plugs; Motorcraft F4TZ-12A342-BA lists copper core and top materials.
This Bosch set suits owners of listed 1995–2003 Ford 7.3L Powerstroke trucks who value its self-regulating feature and corrosion-resistant description. Use the named application and replacement references to assess whether it matches your planned service.
Full product details
| Brand | Bosch |
|---|---|
| Item Weight | 3 pounds |
| Manufacturer | Bosch |
| Part Number | 80033 |
Listed on Amazon as: Bosch 80033 Glow Plug for Ford 7.3L Powerstroke 1995-03 (Set of 8)
View on Amazon#3 · Dual-Coil Design
3. Ensun Dual-Coil Plugs
- Core Material: Nickel
- Thread Size: M14x1.25
Best for: Dual-coil cold-start feature.
Why it ranks #3: The listing fits 7.3L Powerstroke applications and specifies dual coils, nickel construction, and fast-start positioning for cold weather.
Dual coils, described as two heating elements per plug, are the defining feature of this Ensun set for listed 1995–2003 7.3L Powerstroke vehicles. The manufacturer associates that configuration with fast starts in cold weather, giving buyers a specific cold-start feature to weigh.
The two heating elements per plug are presented as the basis for the stated fast-start benefit in cold weather, a relevant feature for buyers considering cold-start operation. Ensun also lists threads designed for strength and plated to prevent seizing, which may matter during installation and later removal. Nickel core and top materials are specified, along with a set of eight and M14x1.25 thread size for parts comparison.
- Dual-coil design with two heating elements per plug
- Fast-start feature stated for cold weather
- Threads are plated to prevent seizing
- Set of eight with nickel core and top materials
- The specified M14x1.25 thread differs from the M14x1.5 specification listed by some other products.
Skip it if you require an M14x1.5 thread specification; Motorcraft F4TZ-12A342-BA lists that size.
This set suits a 1995–2003 7.3L Powerstroke owner who values the stated dual-coil cold-start feature and plated threads. Compare its M14x1.25 thread specification with your vehicle’s requirements before selecting it.
Full product details
| Brand | Ensun |
|---|---|
| Compatible with Vehicle Type | Truck |
| Core Material | Nickel |
| Manufacturer | Liberty Auto Parts |
| Part Number | DGP0001 |
| Model Number | DRX00138 |
| Thread Size | M14x1.25 |
| Top Material Type | Nickel |
Listed on Amazon as: Ensun 8 Pcs Diesel Glow Plug – Dual Coils Fast Start – Compatible with – 1995-2003 Excursion F250 F350 Super Duty 7.3L Powerstroke replace ZD-11 F4TZ-12A342-BA
View on Amazon#4 · Broad Vehicle Fit
4. DNA MOTORING Glow Plugs
- Core Material: Alloy Steel
- Thread Size: M14x1.5
Best for: Multi-vehicle fleet coverage.
Why it ranks #4: Its complete set of eight lists 7.3L Turbo Diesel compatibility and multiple Ford truck and van applications, with alloy-steel construction.
A broad fitment list spanning E-series vans, Excursion, and Super Duty trucks distinguishes this eight-piece DNA MOTORING set. Its listed applications cover several 7.3L Turbo Diesel models from different years, helping buyers servicing one of those specified vehicles evaluate a single complete set.
The fitment list names E-350, E-450 Excursion, Econoline, and multiple F Super Duty models, so it can serve buyers whose 7.3L Turbo Diesel vehicle is among those applications. The included eight plugs provide a complete set, and the M14x1.5 thread size offers a specific specification to compare during parts selection. Alloy-steel core and top materials are also listed, giving buyers concrete construction details when assessing this replacement option.
- Complete set of eight glow plugs
- Fitment list includes specified vans, Excursion, and Super Duty models
- Alloy-steel core and top materials
- M14x1.5 thread size
- The listing instructs buyers to contact the seller directly for warranty information.
Skip it if you want genuine Motorcraft branding; Motorcraft ZD-11 is listed as a genuine OEM set.
For a buyer servicing a listed 7.3L Turbo Diesel van, Excursion, or Super Duty truck, this set offers broad stated vehicle coverage. Match the exact model year and application to its fitment list before choosing it.
Full product details
| Brand | DNA MOTORING |
|---|---|
| Compatible with Vehicle Type | Truck, Van |
| Core Material | Alloy Steel |
| Included Components | 8 X Glow Plugs |
| Manufacturer | DNA Motoring |
| Part Number | ZTL-H-0006 |
| Manufacturer Warranty Description | Please contact the seller directly for warranty information for this product |
| Model Number | ZTL-H-0006 |
| Thread Size | M14x1.5 |
| Top Material Type | Alloy Steel |
#5
5. Motorcraft ZD-9
- Weight: 6.4 oz
Best for: Motorcraft IDI application set.
Why it ranks #5: This is an eight-piece Motorcraft set for IDI 7.3L diesel applications, not the Powerstroke application targeted by the search.
Motorcraft’s ZD-9 set supplies eight genuine-brand glow plugs for the listed 7.3L diesel IDI application. Its ZD-9 designation is noted as superseded by ZD29, giving buyers a current reference to consider when identifying this particular Motorcraft replacement set.
The set of eight is suited to buyers planning a full plug replacement for the listed IDI 7.3L diesel application. Motorcraft identifies ZD-9 as now shipping ZD29, with MC3Z12A342E also named, so the supersession information helps buyers recognize the updated reference during parts selection. The listing emphasizes genuine OEM parts and recommends researching engine, drivetrain, and trim applications, making careful vehicle matching important before installation.
- Set of eight plugs
- Motorcraft genuine OEM branding
- Listed for 7.3L diesel IDI application
- ZD-9 supersession reference identifies ZD29
- The listing is for an IDI application, not the 1995–2003 Powerstroke fitment stated by other listings.
Skip it if you need a listed 1995–2003 7.3L Powerstroke set; Bosch 80033 names those Ford truck years.
This set is for buyers identifying a Motorcraft replacement for the listed 7.3L IDI diesel application, not a general match for every 7.3L. Check the vehicle application and note the ZD29 supersession reference.
Full product details
| Brand | Motorcraft |
|---|---|
| Item Weight | 6.4 ounces |
| Item model number | F2TZ-12A342-A |
| Manufacturer | FORD MOTOR COMPANY |
| Part Number | ZD-9 |
| Package Dimensions | 4.61 x 2.2 x 1.14 inches |
Listed on Amazon as: OEM Ford / Motorcraft Idi 7.3l DIESEL Glow Plug Zd-9- Zf2tz-12a342-a (Set of 8 Pcs)
View on Amazon#6
6. waltyotur IDI Plugs
- Weight: 7 oz
Best for: Earlier 7.3L cold-start replacement.
Why it ranks #6: The eight plugs are described for IDI 7.3L applications and older vehicle fitments, rather than the 7.3 Powerstroke use case.
Compatibility with listed 1987–1994 7.3L IDI vehicles makes this eight-piece waltyotur set an option for owners of those earlier Ford applications. The listing says the plugs work with the factory glow-plug relay and timer, connecting the replacement choice to the vehicle’s specified system.
The stated applications include F-250, F-350, E-250, E-350, F59, and F Super Duty models from the listed years, helping buyers narrow whether this set belongs on their vehicle. Eight plugs are included for a complete replacement, and compatibility with the factory relay and timer supports use with that specified control setup. The listing also describes improved cold-weather starting and plug tips intended to minimize potential swelling.
- Eight glow plugs included
- Listed for specified 1987–1994 7.3L IDI vehicles
- Works with the factory glow-plug relay and timer
- Plug tips are intended to minimize potential swelling
- The listed applications are 1987–1994 vehicles, not 1995–2003 Powerstroke trucks.
Skip it if you own a 1995–2003 7.3L Powerstroke; Bosch 80033 lists those Ford truck years.
Choose this set only if your vehicle matches its listed earlier Ford applications and you want plugs specified for the factory relay and timer. Its stated year range is 1987–1994, so it is not the listed 1995–2003 Powerstroke option.
Full product details
| Brand | waltyotur |
|---|---|
| Item Weight | 7 ounces |
| Item model number | WAUSF7-5284 |
| Manufacturer | waltyotur |
| Part Number | 1-1787960-043268 |
| Dimensions | 4.8 x 3.62 x 0.79 inches |
Listed on Amazon as: waltyotur 8PCS Diesel Glowplugs Glow Plugs Replacement for F2TZ12A342A
View on AmazonPowerstroke and IDI fitment are not interchangeable labels
Do not treat every listing that says 7.3L diesel as a match for a 7.3 Powerstroke. Motorcraft ZD-11, Bosch 80033, Ensun Dual-Coil Plugs, and DNA MOTORING Glow Plugs include Powerstroke-oriented applications in their product details. By contrast, Motorcraft ZD-9 is identified as an IDI 7.3L set, and waltyotur IDI Plugs list older IDI vehicle applications.
That distinction matters because engine family and part-number references, not displacement alone, determine whether a plug is appropriate. Before ordering, compare the vehicle’s engine type and the replacement number on the existing part with the listing.
The product data itself also contains differing replacement references, so do not assume that similar-looking ZD or F2TZ numbers mean the sets are interchangeable. If the engine identification is uncertain, verify it using the vehicle’s documentation or a qualified parts source.
A full set does not establish the cause of hard starting
A set of eight plugs can replace the full bank, but the listings do not establish that glow plugs are the cause of every hard-starting complaint. DNA MOTORING Glow Plugs mentions starting, idle, or fuel-economy issues as possible reasons to consider replacement, while Ensun Dual-Coil Plugs describes glow plugs as wear items. Those statements are not a diagnosis or a guaranteed service interval.
A starting problem can require checking other parts of the starting and glow-plug system before buying a set. The waltyotur listing says its plugs work with the factory glow-plug relay or timer, which reinforces that the plug is only one part of the system.
Treat a symptom as a reason to investigate, not proof that all eight plugs have failed. Confirm the engine fit and diagnose the system before choosing between an OEM-branded set and an aftermarket design.
How to Choose 7.3 Powerstroke Glow Plugs
Engine and part-number fitment
Look for a listing that names the 7.3 Powerstroke application and matches your engine’s replacement number. Motorcraft ZD-11 identifies a 7.3L Powerstroke set and ZD-11 numbering; Bosch 80033 lists the 1995–03 Powerstroke application and references Ford and Motorcraft numbers. Ensun Dual-Coil Plugs also list Powerstroke fitment and ZD-11 replacement information.
DNA MOTORING Glow Plugs name 7.3L Turbo Diesel fitment across several truck and van applications. The two Motorcraft and waltyotur IDI listings are for IDI engines instead.
Buyers certain they have a Powerstroke should favour the first four; anyone unsure should verify engine type and part number before ordering.
Heating design and construction
Compare the heating design and listed material when these details matter to your choice. Bosch 80033 specifies a self-regulating system, while Ensun Dual-Coil Plugs describe two heating elements and list nickel as the core and top material. Motorcraft ZD-11 lists copper for its core and top; DNA MOTORING Glow Plugs lists alloy steel.
These descriptions are not equivalent measures of durability or starting performance, and the listings do not provide a shared test for comparing them. Buyers who specifically want a dual-coil design can favour Ensun; those seeking the listed self-regulating feature can look at Bosch.
For an OEM-brand preference, Motorcraft ZD-11 is the relevant listed option.
Set completeness and weight
Check that the package supplies a full set of eight, then consider any listed weight only as a comparison detail. Motorcraft ZD-11, Bosch 80033, DNA MOTORING Glow Plugs, Motorcraft ZD-9, and waltyotur IDI Plugs explicitly state eight plugs; Ensun’s title and details also specify eight pieces. Listed item weights range from 6.4 ounces for Motorcraft ZD-9 and 7 ounces for waltyotur IDI Plugs to 3 pounds for Bosch 80033, with Motorcraft ZD-11 at 10.24 ounces.
Packaging and listing differences may affect these figures, so weight alone does not establish plug quality. Buyers replacing a full set should prioritize a complete eight-piece package and correct application over weight.
Which 7.3 Powerstroke Glow Plugs Should I Choose?
For a direct OEM-brand choice, select Motorcraft ZD-11: its listing specifies eight genuine Motorcraft plugs for the 7.3L Powerstroke application. If you prefer a stated self-regulating feature, Bosch 80033 is the alternative, with a set of eight and corrosion-resistant positioning. Choose Ensun Dual-Coil Plugs if the listed two-heating-element design and nickel construction are the deciding details.
DNA MOTORING Glow Plugs suit buyers who want a listed eight-piece set with several truck and van fitments, but verify the exact application. Do not choose Motorcraft ZD-9 or waltyotur IDI Plugs for a Powerstroke based on the 7.3 label alone: their provided applications identify them as IDI sets.
Confirm engine type and replacement number before ordering.
Related Buying Guides
Frequently Asked Questions
How can I tell whether my 7.3 is a Powerstroke or an IDI engine?
Check the engine identification and vehicle records, or have a qualified technician verify the engine. A 7.3 IDI uses indirect injection, while the 7.3 Powerstroke uses direct injection with electronically controlled injectors. The shared 7.3-liter label does not establish compatibility, so confirm engine type before choosing glow plugs.
What symptoms can indicate that one or more glow plugs have failed?
Hard starting when the engine is cold, rough running just after startup, or increased visible smoke during cold starts can point to a glow-plug problem. These symptoms can also have other causes, including issues in the glow-plug electrical system. Diagnosis helps distinguish a failed plug from a relay, wiring, or other fault.
Should I replace all eight glow plugs or only the failed plugs?
Replace only confirmed failed plugs if the others test properly and are in suitable condition; replacing all eight can make sense when several have failed or their condition is uncertain. Follow the vehicle’s service guidance and have the plugs checked as a set. Confirm the correct application and replacement number before ordering.
How do I confirm a glow plug fits my truck?
Verify whether your engine is a 7.3 Powerstroke or 7.3 IDI, then match the application and replacement part number to your vehicle. Do not rely on the 7.3-liter label alone: some listings are specifically for IDI engines. Check the product listing and vehicle information before purchase.
What should I compare when choosing between these listings?
Compare the stated engine application, included quantity, replacement numbering, and listed design features. The Motorcraft ZD-11 listing specifies an eight-plug genuine Motorcraft set for 7.3L Powerstroke applications; Bosch states a self-regulating system, and Ensun lists dual heating elements. Treat IDI-labeled options as separate applications.
Final Words
For a direct OEM-brand choice, the Motorcraft ZD-11 listing specifies eight genuine plugs for 7.3L Powerstroke applications and gives replacement numbering. Bosch 80033 is an alternative if its stated self-regulating system is your priority; Ensun highlights a dual-coil design. Compare the listed application and part number with your engine before ordering.
Avoid the ZD-9 and waltyotur IDI listings for a Powerstroke based on the shared 7.3 label alone.
