WhichPartFits.com

Spark Plug

Champion RZ7C

6 compatible models

The Champion RZ7C is an aftermarket spark plug compatible with 6 models across 1 brand. It is a direct cross-reference for OEM part number 0000 400 7011. Compatible equipment includes Stihl BG 56 C-E, Stihl BG 86, Stihl BR 500, Stihl BR 550, Stihl BR 600, and 1 more.

See a wrong fitment? Report a correction.
Verify before ordering: Fitment can vary by serial number, production date, region, and sub-model. Match the OEM number and physical dimensions before ordering.

Amazon Buying Check

Use the Amazon listing to compare kit contents, seller details, shipping, and OEM compatibility notes before ordering.

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Some links may be affiliate links. Match the OEM number, dimensions, and model variant before buying.

Compatible Models

BrandModelOEM #ConfidenceSourceReviewedEvidence
StihlBG 56 C-E0000 400 7011MediumAftermarket catalog2026-05-20CMR6H; 0.5mm gapBlower
StihlBG 860000 400 7011MediumAftermarket catalog2026-05-20CMR6H; 0.5mm gapBlower
StihlBR 5000000 400 7011MediumAftermarket catalog2026-05-200.7mm gapBackpack Blower
StihlBR 5500000 400 7011MediumAftermarket catalog2026-05-200.7mm gapBackpack Blower
StihlBR 6000000 400 7011MediumAftermarket catalog2026-05-200.7mm gapBackpack Blower
StihlMS 500i0000 400 7011MediumAftermarket catalog2026-05-200.7mm gapChainsaw

What this part is

Champion RZ7C is listed here as a spark plug replacement option. Use this page as a fitment cross-reference, then confirm the removed part, model plate, and seller listing details before buying.

OEM numbers it replaces

0000 400 7011

Alternate spellings

RZ7C is the normalized part number used on this site.

Known exclusions

  • No specific exclusion is listed in the current data. Still verify serial range, production variant, and removed-part details before ordering.

Dimensions and specs

  • CMR6H; 0.5mm gap
  • 0.7mm gap

Symptoms that suggest replacement

  • Won't start
  • Hard hot restart
  • Rough idle
  • Fuel-fouled or carbon-heavy plug

How to verify before buying

  • Confirm your equipment is one of the compatible models listed above.
  • Match the OEM number, stamped part number, or physical spec against the removed part.
  • Read the model-specific evidence, confidence, source, reviewed date, dimensions, notes, and exclusions before opening an Amazon listing.

Common wrong-fit mistakes

  • Ordering from a broad model-family listing without checking the exact equipment model.
  • Ignoring the old OEM number, stamped part number, or physical dimensions.
  • Matching the plug number but missing the required gap, terminal style, or thread reach.

Related model and part pages

Stihl BG 56 C-E spark plugStihl BG 86 spark plugStihl BR 500 spark plugStihl BR 550 spark plugStihl BR 600 spark plugStihl MS 500i spark plugChampion RC12YC spark plugNGK BPR5ES spark plugChampion CJ8Y spark plugNGK BPM8Y spark plugNGK BPMR8Y spark plugChampion RS12YC spark plug

Amazon buying cautions

  • Check that the Amazon listing includes the exact part number or verified cross-reference shown here.
  • Compare kit contents, gaskets, fuel lines, bulbs, plugs, filters, and dimensions against the removed part before checkout.
  • A listing title can mention the right model and still include the wrong revision, accessory, or generic substitute.