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Details
| Specification | Value |
|---|---|
| Brand | OE Germany |
| Thread Size 1 | M14x2x241 |
| Thread Size 2 | M14x2x204 |
OE numbers (4)
Search by this OE number to find compatible parts
- MERCEDES-BENZ—003 990 11 00
- MERCEDES-BENZ—003 990 12 00
- MERCEDES-BENZ—A003 990 11 00
- MERCEDES-BENZ—A003 990 12 00
Where this part fits
Original-fit position for OE A0039901100.
What's in the kit
This kit ships with 2 factory-matched components. Each part below is supplied as part of the kit; click any linked MPN to view that component on its own.
| # | Part number | Component | Qty |
|---|---|---|---|
| 1 | 01 0121 930000 | Cylinder Head Bolt
| 8 |
| 2 | 01 0121 930001 | Cylinder Head Bolt
| 10 |
About this product
Sourced from OE Germany, this cylinder head bolt set (01 0121 934009) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Bolt Head-/Nut Design: Cast Iron, Thread Size 1: M14x2x241, Thread Size 2: M14x2x204, Number of bolts/screws: Composite — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. This part supersedes original equipment references: 003 990 11 00, 003 990 12 00, A003 990 11 00, A003 990 12 00. Matching these numbers confirms a like-for-like replacement with no loss of function. OE Germany is a recognised supplier of automotive replacement 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.
Suitable cars
Fitment not confirmed for this part
We could not confirm which vehicles this part fits — check before buying.No equivalent parts found.
Cylinder Head Bolt Set OE Germany 01 0121 934009 — compatible car models
| Manufacturer article number (MPN) | 01 0121 934009 |
|---|---|
| OE part numbers | 003 990 11 00, 003 990 12 00, A003 990 11 00, A003 990 12 00 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
OE Germany 010121934009 . Bolt Head-/Nut Design: 3. Number of bolts/screws: 18. Thread Size 1: M14x2x241. Thread Size 2: M14x2x204
- 1x Cylinder Head Bolt Set
Shipping, returns, warranty
Free UK delivery on orders over £50.00. Tracked standard shipping.
- Standard delivery: 4–8 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 Cylinder Head Bolt Set compatible with my car?
Use the vehicle selector at the top of the page to check compatibility. Enter your car's make, model, and engine — we'll confirm whether this Cylinder Head Bolt Set fits. All fitment data is verified through TecDoc.
What specifications does this OE Germany Cylinder Head Bolt Set have?
This OE Germany Cylinder Head Bolt Set has the following specifications: Bolt Head-/Nut Design: 3; Thread Size 1: M14x2x241; Thread Size 2: M14x2x204; Number of bolts/screws: 18. Check the full specifications table above for complete details.
What OE part numbers does this Cylinder Head Bolt Set replace?
This Cylinder Head Bolt Set replaces OE part numbers: 003 990 11 00, 003 990 12 00, A003 990 11 00, A003 990 12 00. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Cylinder Head Bolt Set cost?
This OE Germany Cylinder Head Bolt Set is available for £161.99. Cylinder Head Bolt Set prices vary depending on brand, specifications, and vehicle compatibility. OE Germany parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Cylinder Head Bolt Set?
Regular inspection of your Cylinder Head Bolt Set 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 Cylinder Head Bolt Set?
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 Cylinder Head Bolt Set fitted by a professional mechanic.
Can I use this part as a replacement for OE 003 990 11 00?
Yes, this OE Germany Cylinder Head Bolt Set is a direct replacement for OE part number 003 990 11 00. 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.
