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Details
| Specification | Value |
|---|---|
| Brand | BOSCH |
| Length [mm] | 121 mm |
| Resistor [kOhm] | 1 kOhm |
OE/OEM numbers (3)
Search by this OE number to find compatible parts
- BMW—12 13 1 730 521
- BMW—12 13 1 740 477
- ALPINA / BMW—12 13 9 067 831
Where this part fits
Original-fit position for OE 12131730521. The red ring marks where this part installs on the vehicle.
About this product
The BOSCH Plug Spark Plug (1 354 489 085) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Length [mm]: 121 mm, Spark Plug: 21, Resistor [kOhm]: Steel kOhm. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit ALPINA, BMW models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 0 300 122 115, 12 13 1 730 521, 12 13 1 740 477, 12 13 9 067 831 and 1 more. Matching these numbers confirms a like-for-like replacement with no loss of function. BOSCH 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 from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
About BOSCH
Robert Bosch GmbH, founded in 1886 in Stuttgart, Germany, is one of the world's largest automotive parts suppliers. Bosch specialises in braking systems, fuel injection, spark plugs, alternators, and electronic engine management. As an OE supplier to virtually every major car manufacturer, Bosch parts meet or exceed original equipment specifications. With over 130 years of engineering innovation, choosing Bosch means choosing proven reliability backed by extensive research and development.
Suitable cars
Equivalent products (2)
Plug Spark Plug BOSCH 1 354 489 085 — compatible car models
| Car models | ALPINA: ROADSTER V8 (E52); BMW: 3 Compact (E36), 3 Compact (E46), 3 Convertible (E36), 3 Convertible (E46), 3 Coupe (E36), 3 Coupe (E46), 3 (E36), 3 (E46), 3 Touring (E36), 3 Touring (E46) (+11 more) |
|---|---|
| Engines | 4.8 V8; 323 ti; 325 ti; 320 i; 320 Ci; 520 i 24V; 520 i; 730 i, iL V8; 728 i, iL; 840 Ci; 3.0 i; 2.8 i; 2.0 i; 4.9 |
| Year of manufacture | 1985-2007 |
| Manufacturer article number (MPN) | 1 354 489 085 |
| OE part numbers | 12 13 1 730 521, 12 13 1 740 477, 12 13 9 067 831 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
BOSCH 1354489085 . Length [mm]: 121 mm. Resistor [kOhm]: 1 kOhm. Spark Plug: 21
- 1x Plug Spark Plug
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- 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 Plug Spark Plug compatible with my car?
This Plug Spark Plug fits ALPINA, BMW 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 BOSCH Plug Spark Plug have?
This BOSCH Plug Spark Plug has the following specifications: Length [mm]: 121 mm; Spark Plug: 21; Resistor [kOhm]: 1 kOhm. Check the full specifications table above for complete details.
What OE part numbers does this Plug Spark Plug replace?
This Plug Spark Plug replaces OE part numbers: 12 13 1 730 521, 12 13 1 740 477, 12 13 9 067 831. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Plug Spark Plug cost?
This BOSCH Plug Spark Plug is available for £15.99. Plug Spark Plug prices vary depending on brand, specifications, and vehicle compatibility. BOSCH parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Plug Spark Plug?
Regular inspection of your Plug Spark Plug is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Plug Spark Plug?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Plug Spark Plug fitted by a professional mechanic.
Can I use this part as a replacement for OE 12 13 1 730 521?
Yes, this BOSCH Plug Spark Plug is a direct replacement for OE part number 12 13 1 730 521. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the BOSCH 1 354 489 085 the same as the BOSCH 0 356 100 100?
No, while both are Plug Spark Plug parts, they are different products. The BOSCH 1 354 489 085 has Length [mm]: 121 mm, Spark Plug: 21, Resistor [kOhm]: 1 kOhm. The BOSCH 0 356 100 100 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
