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Gaskets and Seals› Engine Gaskets and Seals
Cometic Gasket
Cometic Mazda B6 Rear Main Seal Set
SKU: C006 C4783
Moderate — 2–4 hours
Overview
Show original supplier description
Part #: C4783
COMETIC Front and Rear Main Crank Seals are manufactured from the best materials available and are suited for all types of environments. Each seal meets or exceeds OEM quality.
Mazda B6 Rear Main Seal Set
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Vehicle Symptoms
- Oil leak at the back of the engine
- Oil spots on the ground under the transmission
- Burning oil smell from engine bay
- Low oil level without visible front leaks
- Clutch slippage (manual transmission) due to oil contamination
Relevant Conversations
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- What does a rear main seal leak look like
- Oil dripping from bell housing when parked
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- Should I replace rear main seal when doing clutch job
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Cometic Gasket |
| Part Number | C006 C4783 |
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Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
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