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Autodoc£14.38Visit shop ELRING Cylinder Head Bolt Kit BMW,WIESMANN 802.740 11121721938,11121715398,1112171539814x Bolt Kit, cylinder head
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This Elring Cylinder Head Bolt Set Kit (part number 802.74) is designed for vehicle owners and mechanics needing high-quality replacement hardware for specific BMW engine blocks. Its key benefit is providing a precise, durable fit to ensure proper engine sealing and performance. A potential caveat is its specific compatibility, requiring verification against your vehicle's make and model. The kit includes 14 bolts with a Male Torx head and M10x1.5x95mm threading, suitable for grey cast iron engine blocks.
| Colour | Grey |
|---|---|
| Model Part Number | 802.74 |
| Brand | Elring |
No, cylinder head bolts are typically stretch-to-yield fasteners and are designed for single use. They should be replaced every time the cylinder head is removed.
This refers to the size of the tool required to tighten the bolt. 'TX' indicates a Torx fitting, and 'E 12' typically specifies the external Torx size needed for engagement.
Verify the part number (802.74) and compare the OE/OEM numbers (11121721938, 11121715398, 1112171539814x) or TecDoc engine numbers (28375, 28376) against your vehicle's service manual or parts catalog. The description lists compatible BMW models such as E39, E46, E36, E38, and E34 series.
This kit is designed for vehicles with a grey cast iron engine block material.
The thread size is M10x1.5, and the length is 95mm.
Yes, you will need a torque wrench capable of reaching the specified torque values and angle measurements, along with the correct external Torx (E12) socket for tightening.
Remove the bolt and inspect the threads on both the bolt and the engine block for damage or debris. Clean the engine block threads if necessary. Ensure you are using the correct bolt for the specific hole.
Ensure you are using a calibrated torque wrench and the correct tightening sequence as per the vehicle's service manual. Verify the bolt is not bottoming out prematurely, which could indicate incorrect bolt length for the application or damage.
Immediately stop tightening. If the Torx head is stripped, specialized extraction tools may be required. This often indicates the wrong tool size was used or excessive force was applied incorrectly. Inspect the engine block for any obstructions causing binding.
Compatibility: Before purchase, verify that part number 802.74 is the correct specification for your vehicle's engine. This kit is designed for specific BMW models and engine configurations, including those with grey cast iron blocks. Check OE/OEM numbers (11121721938, 11121715398, 1112171539814x) or TecDoc engine numbers (28375, 28376) against your vehicle's service information.
Setup (Installation):
Care: These are single-use, stretch-to-yield bolts. They should not be reused after installation and torqueing, as their material properties change during the tightening process. Store any unused bolts from the kit in a clean, dry place if they are part of a multi-use application for future repairs.
