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Genuine OEM & performance parts — ships to United States

Target · Diagram

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Number 21 marks the part’s position in this exploded view (SEAT Toledo Reference (2012-2015)).

Other diagrams in the gallery may use a different number for the same part.

Product overview

Genuine OEM Volkswagen Dodecagonal Head Bolt, part number 03D103109C. This bolt is a specialized fastener used in engine construction, identified by its dodecagonal (12-point) head. It is marked as number 21 in the engine component diagram. Proper torque and fit are essential for the integrity and performance of the engine. Genuine OEM bolts are manufactured to precise specifications, ensuring the correct material strength and thread engagement for reliable and long-lasting engine operation.

Catalogue entry: BOLT M10X241.

Technical details

Category
Engine
Customs (HS) code
73181595
Manufacturer
Volkswagen
Product Type
Genuine new auto parts
Shipping size (L × W × H)
25.1 × 2.3 × 2.3 cm
Shipping weight
0.14 kg

Specifications

As recorded in the manufacturer’s parts catalogue for this part number.

Thread
M10x241 mm

Equipment codes

  • DG3
  • D21

PR codes identify the factory option a part belongs to; your vehicle’s are listed on the data sticker in the boot well or service booklet.

Why buy from WW Spares?

  • ✓ Genuine OEM inventory sourced directly from factory networks
  • ✓ Fitment support from workshop-seasoned parts specialists
  • ✓ Global logistics with customs-ready documentation

Need help confirming compatibility? Talk to a specialist

Replaces older part numbers

This is the current manufacturer number. Older numbers on this road are no longer supplied.

Supersession roadoldest to newest
  1. 03D103109DNot stocked
  2. 03D103109CThis pageCurrent number