⚡ Ignite your drive with Bosch’s precision spark!
The BOSCH HR9DC Spark Plug features a copper core and a 130 thread size, designed as a direct OEM replacement (Bosch 7978, HR9DC). Its resistor type construction reduces electrical interference, ensuring optimal ignition performance and engine reliability. Lightweight and crafted by Bosch Automotive, this spark plug delivers durable, high-quality performance for professional-grade vehicle maintenance.
| Brand | Bosch Automotive |
| Core Material | Copper |
| Thread Size | 130 |
| Global Trade Identification Number | 00028851018289 |
| UPC | 028851018289 826732301365 |
| OEM Part Number | 7978, HR9DC+ |
| Manufacturer | Bosch Automotive |
| Model | 130-197 |
| Item Weight | 1.6 ounces |
| Item model number | 130-197 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 130-197 |
A**U
Pretty decent spark plug for Mercedes m103 engine.
Pretty decent spark plugs. But Bosch H8DC0 works better in my w124/m103 engine. The spark is more stable.
D**R
Works well. But will likely get hotter plugs next time to keep carbon down.
Works well on my 1986 300E. But I will probably get some hotter plugs since the car is driven short distances. These plugs may end up fouling out Not that these plugs have fouled, but the set they replaced were awfully carboned up.
C**4
Four Stars
its a BUSH you cant go wrong
P**.
Works perfectly
Installed on a Mercedes 190E 2.6 and they worked flawlessly. These are OEM for most Mercedes between the late 80's and early 90's. They arrived fast too.
V**A
loved it
work great car runs great easy to install easy to gap price was right, installation was great im so glad i bought this! <3
D**A
Five Stars
Good product I think so far!
K**8
good
This item came in good timing, and was in good shape and happy with the senders did a great job.
C**T
runs smooth!
just what my car needed to run smoothly!
Trustpilot
2 days ago
2 weeks ago
