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3930543 | Cummins 4B/6B Rocker Cover Bolt Isolator

Pricing: $1.94

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When it comes to Rocker Cover Bolt Isolators, why risk your engine?

Don?t let a small part turn into a major repair. We wouldn't risk putting sub-par parts into our engines, so why should you?

HHP only sells Rocker Cover Bolt Isolators that are manufactured in a state of the art facility using top of the line machining and measuring equipment to ensure each part is manufactured to OEM specifications. Combine this with up to 50% off OEM prices, an industry leading 2-Year Parts and Labor Warranty and technical expertise from HHP?s certified staff, and you?ve got a quality Rocker Cover Bolt Isolator that will keep you running for another million miles.

Need a little extra proof? Let's talk shop.

  • You'll get a brand new rocker cover bolt isolator that is manufactured and assembled in an ISO 9001:2008 certified facility, this ensures superb quality and consistency.
  • Want more cash in your pocket? We can help. This isolator has equal or better quality compared to to the OE at a much lower price.
  • To top it off, you'll get proper fit and function with an isolator that conforms to strict OEM specifications.


  • (1) Rocker Cover Bolt Isolator


2-Year Parts and Labor Warranty

OEM Applications:

  • 3930543

Technical Data

Fits Applications:
4B requires a quantity of 4
6B requires a quantity of 6


  • P022875
  • P022875
  • HHP
  • New


Shipping Information

  • Item Requires Shipping
  • 0.0 lbs.
  • W5.0000” x H0.5000” x L3.0000”

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