Deals at MyTruckPoint

Dinan D640-0001 Dinan Iridium Spark Plug - 12x26.5x14MM (Flat) - Heat Range 9

Vendor: Dinan
SKU: GFBV_D640-0001
Availability: 2 In Stock
Product Type: Spark Plug
$44.96 CAD
$22.44
$44.96 CAD
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Description
Description
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Compatible OEM Part #Cross Reference: 12120040551, 12122455258, 12120046646 & 12125A4EF60


Specifications:

Brand Dinan
Category Ignition
547 Copper
9805 Short Projection
548 Iridium
3858 Cup
Emission Code 2
3390 Performance
551 14
9507 Bi-Hex
9746 No
604 Ceramic
part type Spark Plug
Product Type Spark Plug
556 26.5
555 Flat
Sub Category Secondary Ignition
Thread Diameter 12
Warning California Proposition 65
Warranty 1yr/Unlimited Miles
Description_INV SPARK PLUGS; FLAT; B48/B58/S58
Description_ASC Always check sizes, gap, and heat range specs before installing. Installation of the wrong length plug can cause damage to the engine. You must verify this before installing the plug.
Description_DES Dinan Iridium Spark Plug - 12x26.5x14MM (Flat) - Heat Range 9
Description_EXT B48/B58/S58
Description_MKT Dinan Iridium Spark Plugs are an excellent upgrade for tuned, and even stock engines. Our spark plugs are made from Iridium - one of the strongest materials available. They last longer than other materials with higher melting points, run cooler, resist preignition, and even require less voltage to produce a strong spark. The iridium electrode with its copper core is harder and stronger than other materials, can dissipate heat more easily, and is better protected from melting, cracking, and other limitations found with standard plugs.
Description_MKT Dinan spark plugs are great for high boost, high cylinder pressure, high cylinder temperatures, and high-power situations, and they pair nicely with a set of Dinan ignition coils, where applicable. However, they are not only for tuned and higher output vehicles that may benefit from a plug cooler than the factory heat range – they also are applicable to non-tuned / stock vehicles as well!
Description_MKT The D640-0001 spark plug applies to the following engines: Gen 1 B48, Gen 1 & 2 B58 engines as well as the S58.
Description_MKT Compatible OEM Part #Cross Reference: 12120040551, 12122455258, 12120046646 & 12125A4EF60
Description_FAB Heat range 9 spark plug (Similar: Bosch 3, Brisk 10, Champion 4, Denso 27, and NGK 9)
Description_FAB 152% higher melting point than silver, 125% higher than copper, and 38% higher than platinum
Description_FAB Stronger than copper and platinum
Description_FAB Acceptable for high performance / tuned and stock vehicle applications alike
Description_FAB Projected insulator design
Description_FAB Lower required supplied voltage
Description_FAB Cooler operating temperature than stock plugs
Description_FAB Optimized electrode design for hard to ignite fuels, such as ethanol
Description_FAB Resists preignition better than stock plugs
Description_FAB An excellent match for Dinan ignition coils
Description_FAB Thread reach: 26.5mm
Description_FAB Thread diameter: 12mm
Description_FAB Hexagon: 14mm Bi-Hex
Description_FAB Terminal Type: Cup
Description_FAB Seat Type: Flat
Description_FAB Install Torque: 17 Nm
Description_FAB Insulator Material: Ceramic
Description_FAB Supplied Gap: 0.5mm
Description_FAB 1 step colder than OEM (Gen 1 B48, Gen 1/2 B58, & S58)
Description_FAB Made in the EU
Vehicle Fitment
Vehicle Fitment
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Shipping
Shipping
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SHIPPING & DELIVERY INFORMATION

Free Shipping

  • Eligibility: Orders over $99 in the USA & Canada.
  • Exceptions: Oversized or heavy items may incur extra fees (we’ll notify you before shipping).
  • Non-Eligible Areas: Vancouver Island, Yukon, NWT, Nunavut, Alaska, Hawaii, Puerto Rico & other U.S. territories.

Fast Shipping

  • Processing: Orders placed before 2 PM usually ship the same day.
  • Delivery Time: 2–5 business days via Purolator, FedEx, or Loomis Express.
  • Note: Delivery may take longer for distant warehouses or inter-warehouse transfers.

Shipping Limitations

  • No P.O. Boxes: Please provide a physical address.
  • Remote Areas: Free shipping excludes remote regions.

Special Orders & Backorders

  • May incur additional handling fees (discussed before shipping).
  • You may cancel if costs are too high for a full refund.

Warranty

  • For internal damage or missing parts, contact the manufacturer directly for faster service.
  • After 30 days, contact the manufacturer first — if unresolved, our team will assist.

Oversized Items

  • Shipped via LTL Freight (items over 150 lbs or large dimensions).
  • We’ll confirm any added costs before shipping.
  • Examples: Large Fridges, Oversize Toolbox or Tanks, Drop in Bed liners, Wheel to Wheel Step bar & Running Boards, Large Roof Cargo Box, Heavy Bumpers, RV Doors, Oversize, Roof Tent, Large gas tank, Oversize Grille Guards, Fifth Wheel Hitch, Sofa , Trailer Axle.
  • Special Handling Fees: Items like batteries may incur additional shipping fees.

Returns & Cancellations

In-Stock Items

  • Cancel before shipment; once shipped, standard return policy applies.
  • 20% restocking fee, excluding oversize item. Both way shipping is customer responsibility under store error.

Backorders / Special Orders

  • 5% restocking fee applies if canceled within 30 days.
  • Non-cancellable once shipped from the manufacturer.
  • Refused Deliveries: Refund minus shipping & restocking fees (excludes special orders).
  • Payment Disputes: Chargebacks do not cancel orders — please contact us directly.

Core Fees

  • Not included in the purchase price.
  • Refundable upon return of the old part in usable condition.

If you have any questions or need assistance, please reach out to us at 800.292.4173 or support@mytruckpoint.ca.

Why Us
Why Us
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