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Details
| Specification | Value |
|---|---|
| Brand | WALKER PRODUCTS |
| MPN | 921-2005 |
OE numbers (6)
Search by this OE number to find compatible parts
- FORD—1L2U-12029-AA
- FORD—1L2U-12A388-AA
- FORD—1L2Z-12029-AA
- FORD—3W7Z-12029-AA
- FORD—8W7E-12A366-AA
- ROVER—NEL000010
Where this part fits
Original-fit position for OE 3W7Z12029AA.
About this product
WALKER PRODUCTS Ignition Coil (921-2005) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Compatible with FORD USA, LINCOLN, MERCURY, MG and 1 other makes vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 12496, 1L2U-12029-AA, 1L2U-12A388-AA, 1L2Z-12029-AA and 17 more. Matching these numbers confirms a like-for-like replacement with no loss of function. WALKER PRODUCTS is a recognised supplier of automotive ignition components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
Ignition Coil buying guide
Why replace this part?
Ignition coils transform battery voltage into the high voltage needed to create a spark at the spark plug. A failing coil causes misfires, rough running, and can damage the catalytic converter if left unaddressed.
Signs you need a replacement
- Engine misfires
- rough idle
- loss of power
- poor fuel economy
- check engine light with misfire diagnostic codes
- difficulty starting
When to replace
No fixed interval — replace when symptoms or diagnostic codes indicate failure. Some mechanics recommend replacing all coils together.
Suitable cars
Equivalent products (15)
Ignition Coil WALKER PRODUCTS 921-2005 — compatible car models
| Car models | FORD USA: CROWN VICTORIA, EXPEDITION, EXPLORER, F-150, F-250, MUSTANG Convertible (C), MUSTANG Coupe (C); LINCOLN: NAVIGATOR (UN173); MERCURY: GRAND MARQUIS; MG: MG ZT, MG ZT- T; ROVER: 75 I Tourer (RJ), 75 (RJ) |
|---|---|
| Engines | 4.6; 4.6 4WD; 5.4; 260; 4.6 V8 |
| Year of manufacture | 1991-2012 |
| Manufacturer article number (MPN) | 921-2005 |
| OE part numbers | 1L2U-12029-AA, 1L2U-12A388-AA, 1L2Z-12029-AA, 3W7Z-12029-AA, 8W7E-12A366-AA, NEL000010 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
WALKER PRODUCTS 921-2005
- 1x Ignition coil
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 business days
- Order before 5pm — ships the next working day
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Ignition Coil compatible with my car?
This Ignition Coil fits FORD USA, LINCOLN, MERCURY, MG, ROVER vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this WALKER PRODUCTS Ignition Coil have?
The package includes the Ignition Coil as described in the specifications above. Check the "What's included" section for a full list of components. If mounting hardware or accessories are required, they will be listed separately.
What OE part numbers does this Ignition Coil replace?
This Ignition Coil replaces OE part numbers: 1L2U-12029-AA, 1L2U-12A388-AA, 1L2Z-12029-AA, 3W7Z-12029-AA, 8W7E-12A366-AA, NEL000010. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Ignition Coil cost?
Ignition Coil prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this WALKER PRODUCTS Ignition Coil. All parts come with our 14-day money-back guarantee.
How do I know when to replace my Ignition Coil?
Watch for engine misfires, rough idle, reduced power, poor fuel economy, difficulty starting, or the check engine light with misfire codes.
What tools do I need to replace a Ignition Coil?
Tools needed: 8mm or 10mm socket, ratchet, electrical contact cleaner, dielectric grease, OBD-II scanner (to identify the misfiring cylinder). Difficulty: Moderate DIY. Safety warning: Disconnect the battery negative terminal before removing ignition coils -- the secondary voltage from a coil-on-plug unit can exceed 40,000 V and cause serious injury.
Can I use this part as a replacement for OE 1L2U-12029-AA?
Yes, this WALKER PRODUCTS Ignition Coil is a direct replacement for OE part number 1L2U-12029-AA. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
