WhichPartFits.com

Primer Bulb

Zama BG-00-4

Also: BG 00 4

56 compatible models

The Zama BG-00-4 is an aftermarket primer bulb compatible with 56 models across 4 brands. It is a direct cross-reference for OEM part numbers 12318139130, 545008030, 503936601, 530047721, 4238 350 6201, 4130 350 6200, 0000 350 6202, 0000 350 6201, 1143 350 6200. Compatible equipment includes Echo CS-310, Echo CS-330T, Echo CS-352, Echo CS-355T, Echo CS-400, and 51 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.

Best if replacing fuel systemAmazonAffiliate link

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

Compatible Models

BrandModelOEM #ConfidenceSourceReviewedEvidence
EchoCS-31012318139130MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
EchoCS-330T12318139130MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
EchoCS-35212318139130MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
EchoCS-355T12318139130MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
EchoCS-40012318139130MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
EchoCS-44012318139130MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
EchoCS-500P12318139130MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
EchoCS-590 Timber Wolf12318139130MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
EchoSRM-21012318139130MediumAftermarket catalog2026-05-20Match OEM and dimensionsTrimmer
EchoSRM-22512318139130MediumAftermarket catalog2026-05-20Match bulb diameter and port orientation before ordering.Trimmer
EchoSRM-23012318139130MediumAftermarket catalog2026-05-20Match OEM and dimensionsTrimmer
EchoSRM-26612318139130MediumAftermarket catalog2026-05-20Match OEM and dimensionsTrimmer
EchoSRM-28012318139130MediumAftermarket catalog2026-05-20Match OEM and dimensionsTrimmer
EchoSRM-31012318139130MediumAftermarket catalog2026-05-20Match OEM and dimensionsTrimmer
Husqvarna120545008030MediumAftermarket catalog2026-05-21Purge and line assembly; also fits 120 Mark II, 125B, 235, 236, 240Chainsaw
Husqvarna125L503936601MediumAftermarket catalog2026-05-20Match OEM and dimensionsTrimmer
Husqvarna128C503936601MediumAftermarket catalog2026-05-20Match OEM and dimensionsTrimmer
Husqvarna128LD503936601MediumAftermarket catalog2026-05-21Match bulb diameter, port count, and port orientation before ordering.Trimmer
Husqvarna135L503936601MediumAftermarket catalog2026-05-20Match OEM and dimensionsTrimmer
Husqvarna240503936601MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
Husqvarna323L503936601MediumAftermarket catalog2026-05-20Match OEM and dimensionsTrimmer
Husqvarna435503936601MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
Husqvarna440503936601MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
Husqvarna445503936601MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
Husqvarna450503936601MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
Husqvarna455 Rancher503936601MediumAftermarket catalog2026-05-21Match bulb diameter, port count, and port orientation before ordering.Chainsaw
Husqvarna460 Rancher503936601MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
Husqvarna525L503936601MediumAftermarket catalog2026-05-20Match OEM and dimensionsTrimmer
Husqvarna525LS503936601MediumAftermarket catalog2026-05-20Match OEM and dimensionsTrimmer
Husqvarna576 XP503936601MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
Poulan ProP3314530047721MediumAftermarket catalog2026-05-20Snap-in purge/primer bulbChainsaw
Poulan ProP3816530047721MediumAftermarket catalog2026-05-20Snap-in purge/primer bulbChainsaw
Poulan ProPP4218A530047721MediumAftermarket catalog2026-05-20Snap-in purge bulbChainsaw
Poulan ProPP4620AV530047721MediumAftermarket catalog2026-05-20Standard Poulan primer/purge bulb; not separately listed in PP4620AV IPL but shared across familyChainsaw
StihlMS 1704238 350 6201LowAftermarket catalog2026-05-20Serial split noted in current data; compare old bulb and serial number.Chainsaw
StihlMS 1804238 350 6201MediumAftermarket catalog2026-05-21Newer units (SN# 287332321+) use 0000 350 6202Chainsaw
StihlMS 192 T4130 350 6200MediumAftermarket catalog2026-05-20Fuel pump primer bulbChainsaw
StihlMS 194 T4130 350 6200MediumAftermarket catalog2026-05-20Fuel pump primer bulbChainsaw
StihlMS 2010000 350 6202MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
StihlMS 2104238 350 6201MediumAftermarket catalog2026-05-20Newer units (SN# 287332321+) use 0000 350 6202Chainsaw
StihlMS 2110000 350 6201MediumAftermarket catalog2026-05-20Fits MS 211 and many Stihl modelsChainsaw
StihlMS 2304238 350 6201MediumAftermarket catalog2026-05-20Newer units (SN# 287332321+) use 0000 350 6202Chainsaw
StihlMS 2504238 350 6201MediumAftermarket catalog2026-05-21Newer units (SN# 287332321+) use 0000 350 6202Chainsaw
StihlMS 2511143 350 6200MediumAftermarket catalog2026-05-20Fits MS 231, MS 251Chainsaw
StihlMS 2614238 350 6201MediumAftermarket catalog2026-05-20Newer units (SN# 287332321+) use 0000 350 6202Chainsaw
StihlMS 2714238 350 6201MediumAftermarket catalog2026-05-20Newer units (SN# 287332321+) use 0000 350 6202Chainsaw
StihlMS 2914238 350 6201MediumAftermarket catalog2026-05-20Newer units (SN# 287332321+) use 0000 350 6202Chainsaw
StihlMS 3114238 350 6201MediumAftermarket catalog2026-05-20Newer units (SN# 287332321+) use 0000 350 6202Chainsaw
StihlMS 3614238 350 6201MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
StihlMS 3624238 350 6201MediumAftermarket catalog2026-05-20Newer units (SN# 287332321+) use 0000 350 6202Chainsaw
StihlMS 3914238 350 6201MediumAftermarket catalog2026-05-20Newer units (SN# 287332321+) use 0000 350 6202Chainsaw
StihlMS 400 C-M0000 350 6202MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
StihlMS 4414238 350 6201MediumAftermarket catalog2026-05-20Newer units (SN# 287332321+) use 0000 350 6202Chainsaw
StihlMS 4614238 350 6201MediumAftermarket catalog2026-05-20Newer units (SN# 287332321+) use 0000 350 6202Chainsaw
StihlMS 462 C-M0000 350 6202MediumAftermarket catalog2026-05-20Match OEM and dimensionsChainsaw
StihlMS 6604238 350 6201MediumAftermarket catalog2026-05-20Newer units (SN# 287332321+) use 0000 350 6202Chainsaw

What this part is

Zama BG-00-4 is listed here as a primer bulb 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

12318139130, 545008030, 503936601, 530047721, 4238 350 6201, 4130 350 6200, 0000 350 6202, 0000 350 6201, 1143 350 6200

Alternate spellings

BG-00-4, BG 00 4

Known exclusions

  • Newer units may use 0000 350 6202 instead.

Dimensions and specs

  • Match bulb diameter and port orientation before ordering.

Symptoms that suggest replacement

  • Primer bulb will not fill
  • Cracked bulb
  • Fuel leaking around bulb
  • Bulb stays collapsed

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.

Related model and part pages

Echo CS-310 primer bulbEcho CS-330T primer bulbEcho CS-352 primer bulbEcho CS-355T primer bulbEcho CS-400 primer bulbEcho CS-440 primer bulbEcho CS-500P primer bulbEcho CS-590 Timber Wolf primer bulbStens 120-178 primer bulbStens 120-730 primer bulbZama 0057003 primer bulbHipa A021003661 primer bulbHipa 12318140630 primer bulbHipa 12318139130 primer bulb

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.