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Engine Parts

Three-quarter isometric view of the front face showing the stepped bore entry. GMB brand marking visible on the green seal ring at the top. Inscription on lower portion of seal perimeter, partially legible.

Tensioner Pulley - Opel / Chevrolet - GT90540/QTT298 - GMB - NOS
Top-down view of both bearing shell stacks fanned out — upper halves (dark grey tri-metal face) in one stack, lower halves (yellow coating, broad semi-circular profile with locating lug notch) in second stack. All shells appear factory-fresh.

Rod Bearing Set - Chevrolet - 8B745H-010 - ACL - NOS
Close-up of bearing set contents: stacked half-shell journal bearings (4 or 5 pieces) wrapped in clear poly, copper-backed steel visible on outer face; flanged thrust bearing (No. 5 position) wrapped in yellow/green poly film below. Both packages intact but unsealed or loose from age.

Main Bearing Set - Chevrolet - 5M2377-030 - ACL - NOS
Three stacked half-shell bearings still in sealed plastic showing the bright silver running surface and Babbitt overlay; light yellow tarnish spots visible on the bearing backs

Main bearing set - Chevrolet/Pontiac - MB554AM 030/EB2372M5030K - King - NOS
Sealed bearing set, three-quarter view, stacked half-shells wrapped in clear plastic film with embossed markings visible on shell tangs

Rod Bearing Set - Suzuki/Chevrolet - CB-1179A 0.50 - NDC - NOS